./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 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88afe3ea-4019-470c-a084-9e0bd247b015/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88afe3ea-4019-470c-a084-9e0bd247b015/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88afe3ea-4019-470c-a084-9e0bd247b015/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88afe3ea-4019-470c-a084-9e0bd247b015/bin/uautomizer-verify-VRDe98Ueme/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_88afe3ea-4019-470c-a084-9e0bd247b015/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88afe3ea-4019-470c-a084-9e0bd247b015/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0f799b8cb369af433cd7b4f4a2ae1c7efd2306d185f06da0302d2727c00c6bf0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:46:54,782 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:46:54,907 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88afe3ea-4019-470c-a084-9e0bd247b015/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 10:46:54,916 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:46:54,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:46:54,959 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:46:54,959 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:46:54,960 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:46:54,961 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:46:54,961 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:46:54,962 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:46:54,963 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:46:54,963 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:46:54,964 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:46:54,965 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:46:54,965 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:46:54,966 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:46:54,966 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:46:54,967 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:46:54,967 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:46:54,968 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:46:54,968 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:46:54,969 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 10:46:54,969 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:46:54,969 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:46:54,970 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:46:54,970 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:46:54,971 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:46:54,971 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:46:54,972 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:46:54,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:46:54,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:46:54,973 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:46:54,973 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:46:54,973 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:46:54,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:46:54,974 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:46:54,974 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:46:54,974 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:46:54,974 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:46:54,975 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:46:54,975 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_88afe3ea-4019-470c-a084-9e0bd247b015/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88afe3ea-4019-470c-a084-9e0bd247b015/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f799b8cb369af433cd7b4f4a2ae1c7efd2306d185f06da0302d2727c00c6bf0 [2023-11-26 10:46:55,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:46:55,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:46:55,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:46:55,347 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:46:55,347 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:46:55,349 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88afe3ea-4019-470c-a084-9e0bd247b015/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/ldv-races/race-4_2-thread_local_vars.i [2023-11-26 10:46:58,613 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:46:59,120 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:46:59,120 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88afe3ea-4019-470c-a084-9e0bd247b015/sv-benchmarks/c/ldv-races/race-4_2-thread_local_vars.i [2023-11-26 10:46:59,154 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88afe3ea-4019-470c-a084-9e0bd247b015/bin/uautomizer-verify-VRDe98Ueme/data/f5dd7b74d/715ffa3b4362475e9fcc7f0489ca82de/FLAG4ef9a7a32 [2023-11-26 10:46:59,176 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88afe3ea-4019-470c-a084-9e0bd247b015/bin/uautomizer-verify-VRDe98Ueme/data/f5dd7b74d/715ffa3b4362475e9fcc7f0489ca82de [2023-11-26 10:46:59,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:46:59,183 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:46:59,184 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:46:59,185 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:46:59,190 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:46:59,190 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:46:59" (1/1) ... [2023-11-26 10:46:59,191 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f294dd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:59, skipping insertion in model container [2023-11-26 10:46:59,192 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:46:59" (1/1) ... [2023-11-26 10:46:59,257 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:47:00,250 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:47:00,265 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:47:00,392 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:47:00,551 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:47:00,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00 WrapperNode [2023-11-26 10:47:00,551 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:47:00,552 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:47:00,553 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:47:00,553 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:47:00,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00" (1/1) ... [2023-11-26 10:47:00,597 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00" (1/1) ... [2023-11-26 10:47:00,641 INFO L138 Inliner]: procedures = 487, calls = 46, calls flagged for inlining = 17, calls inlined = 23, statements flattened = 306 [2023-11-26 10:47:00,642 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:47:00,643 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:47:00,643 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:47:00,643 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:47:00,653 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00" (1/1) ... [2023-11-26 10:47:00,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00" (1/1) ... [2023-11-26 10:47:00,663 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00" (1/1) ... [2023-11-26 10:47:00,664 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00" (1/1) ... [2023-11-26 10:47:00,685 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00" (1/1) ... [2023-11-26 10:47:00,690 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00" (1/1) ... [2023-11-26 10:47:00,697 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00" (1/1) ... [2023-11-26 10:47:00,701 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00" (1/1) ... [2023-11-26 10:47:00,709 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:47:00,710 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:47:00,711 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:47:00,711 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:47:00,712 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00" (1/1) ... [2023-11-26 10:47:00,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:47:00,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88afe3ea-4019-470c-a084-9e0bd247b015/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:47:00,749 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88afe3ea-4019-470c-a084-9e0bd247b015/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:47:00,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88afe3ea-4019-470c-a084-9e0bd247b015/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:47:00,802 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2023-11-26 10:47:00,802 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2023-11-26 10:47:00,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:47:00,803 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 10:47:00,804 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2023-11-26 10:47:00,804 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2023-11-26 10:47:00,804 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 10:47:00,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:47:00,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-26 10:47:00,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:47:00,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:47:00,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:47:00,807 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 10:47:00,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 10:47:00,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 10:47:00,812 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 10:47:01,139 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:47:01,141 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:47:01,692 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:47:01,726 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:47:01,726 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 10:47:01,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:47:01 BoogieIcfgContainer [2023-11-26 10:47:01,729 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:47:01,731 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:47:01,731 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:47:01,735 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:47:01,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:46:59" (1/3) ... [2023-11-26 10:47:01,736 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c38f76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:47:01, skipping insertion in model container [2023-11-26 10:47:01,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:47:00" (2/3) ... [2023-11-26 10:47:01,736 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c38f76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:47:01, skipping insertion in model container [2023-11-26 10:47:01,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:47:01" (3/3) ... [2023-11-26 10:47:01,738 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_2-thread_local_vars.i [2023-11-26 10:47:01,751 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 10:47:01,762 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:47:01,763 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-26 10:47:01,763 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 10:47:01,883 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-11-26 10:47:01,947 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 482 places, 524 transitions, 1075 flow [2023-11-26 10:47:02,169 INFO L124 PetriNetUnfolderBase]: 45/535 cut-off events. [2023-11-26 10:47:02,169 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 10:47:02,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 546 conditions, 535 events. 45/535 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1600 event pairs, 0 based on Foata normal form. 0/451 useless extension candidates. Maximal degree in co-relation 372. Up to 11 conditions per place. [2023-11-26 10:47:02,189 INFO L82 GeneralOperation]: Start removeDead. Operand has 482 places, 524 transitions, 1075 flow [2023-11-26 10:47:02,201 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 331 places, 356 transitions, 728 flow [2023-11-26 10:47:02,214 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:47:02,222 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3ee0321f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:47:02,223 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-11-26 10:47:02,228 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:47:02,228 INFO L124 PetriNetUnfolderBase]: 0/29 cut-off events. [2023-11-26 10:47:02,228 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:47:02,228 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:02,229 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:02,230 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)] === [2023-11-26 10:47:02,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:02,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1904705470, now seen corresponding path program 1 times [2023-11-26 10:47:02,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:02,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936889752] [2023-11-26 10:47:02,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:02,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:02,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:02,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:02,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936889752] [2023-11-26 10:47:02,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936889752] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:02,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:02,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:47:02,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791861613] [2023-11-26 10:47:02,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:02,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:02,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:02,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:02,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:03,051 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 524 [2023-11-26 10:47:03,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 356 transitions, 728 flow. Second operand has 3 states, 3 states have (on average 453.3333333333333) internal successors, (1360), 3 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:03,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:03,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 524 [2023-11-26 10:47:03,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:03,405 INFO L124 PetriNetUnfolderBase]: 122/1281 cut-off events. [2023-11-26 10:47:03,406 INFO L125 PetriNetUnfolderBase]: For 33/40 co-relation queries the response was YES. [2023-11-26 10:47:03,417 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1491 conditions, 1281 events. 122/1281 cut-off events. For 33/40 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 7666 event pairs, 76 based on Foata normal form. 115/1218 useless extension candidates. Maximal degree in co-relation 1164. Up to 185 conditions per place. [2023-11-26 10:47:03,426 INFO L140 encePairwiseOnDemand]: 503/524 looper letters, 24 selfloop transitions, 2 changer transitions 6/316 dead transitions. [2023-11-26 10:47:03,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 311 places, 316 transitions, 700 flow [2023-11-26 10:47:03,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:03,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:47:03,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1401 transitions. [2023-11-26 10:47:03,454 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8912213740458015 [2023-11-26 10:47:03,455 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1401 transitions. [2023-11-26 10:47:03,455 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1401 transitions. [2023-11-26 10:47:03,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:03,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1401 transitions. [2023-11-26 10:47:03,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 467.0) internal successors, (1401), 3 states have internal predecessors, (1401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:03,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:03,485 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:03,487 INFO L175 Difference]: Start difference. First operand has 331 places, 356 transitions, 728 flow. Second operand 3 states and 1401 transitions. [2023-11-26 10:47:03,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 311 places, 316 transitions, 700 flow [2023-11-26 10:47:03,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 316 transitions, 696 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:47:03,507 INFO L231 Difference]: Finished difference. Result has 309 places, 310 transitions, 636 flow [2023-11-26 10:47:03,509 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=524, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=636, PETRI_PLACES=309, PETRI_TRANSITIONS=310} [2023-11-26 10:47:03,516 INFO L281 CegarLoopForPetriNet]: 331 programPoint places, -22 predicate places. [2023-11-26 10:47:03,516 INFO L495 AbstractCegarLoop]: Abstraction has has 309 places, 310 transitions, 636 flow [2023-11-26 10:47:03,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 453.3333333333333) internal successors, (1360), 3 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:03,518 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:03,518 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:03,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:47:03,519 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-26 10:47:03,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:03,520 INFO L85 PathProgramCache]: Analyzing trace with hash 2027869932, now seen corresponding path program 1 times [2023-11-26 10:47:03,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:03,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115179299] [2023-11-26 10:47:03,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:03,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:03,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:03,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:03,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:03,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115179299] [2023-11-26 10:47:03,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115179299] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:03,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:03,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:47:03,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881310889] [2023-11-26 10:47:03,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:03,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:03,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:03,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:03,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:03,810 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 438 out of 524 [2023-11-26 10:47:03,813 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 310 transitions, 636 flow. Second operand has 3 states, 3 states have (on average 439.0) internal successors, (1317), 3 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:03,813 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:03,814 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 438 of 524 [2023-11-26 10:47:03,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:04,247 INFO L124 PetriNetUnfolderBase]: 161/1687 cut-off events. [2023-11-26 10:47:04,247 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2023-11-26 10:47:04,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1927 conditions, 1687 events. 161/1687 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 11515 event pairs, 29 based on Foata normal form. 0/1454 useless extension candidates. Maximal degree in co-relation 1889. Up to 156 conditions per place. [2023-11-26 10:47:04,271 INFO L140 encePairwiseOnDemand]: 500/524 looper letters, 30 selfloop transitions, 17 changer transitions 0/322 dead transitions. [2023-11-26 10:47:04,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 322 transitions, 755 flow [2023-11-26 10:47:04,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:04,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:47:04,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1368 transitions. [2023-11-26 10:47:04,277 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8702290076335878 [2023-11-26 10:47:04,277 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1368 transitions. [2023-11-26 10:47:04,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1368 transitions. [2023-11-26 10:47:04,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:04,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1368 transitions. [2023-11-26 10:47:04,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 456.0) internal successors, (1368), 3 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:04,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:04,291 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:04,291 INFO L175 Difference]: Start difference. First operand has 309 places, 310 transitions, 636 flow. Second operand 3 states and 1368 transitions. [2023-11-26 10:47:04,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 322 transitions, 755 flow [2023-11-26 10:47:04,297 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 322 transitions, 751 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:47:04,306 INFO L231 Difference]: Finished difference. Result has 302 places, 319 transitions, 750 flow [2023-11-26 10:47:04,307 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=524, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=750, PETRI_PLACES=302, PETRI_TRANSITIONS=319} [2023-11-26 10:47:04,308 INFO L281 CegarLoopForPetriNet]: 331 programPoint places, -29 predicate places. [2023-11-26 10:47:04,308 INFO L495 AbstractCegarLoop]: Abstraction has has 302 places, 319 transitions, 750 flow [2023-11-26 10:47:04,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 439.0) internal successors, (1317), 3 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:04,311 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:04,314 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:04,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:47:04,315 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-26 10:47:04,316 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:04,317 INFO L85 PathProgramCache]: Analyzing trace with hash -974797332, now seen corresponding path program 1 times [2023-11-26 10:47:04,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:04,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909740349] [2023-11-26 10:47:04,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:04,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:04,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:04,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:04,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:04,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909740349] [2023-11-26 10:47:04,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909740349] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:04,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:04,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:47:04,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997083125] [2023-11-26 10:47:04,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:04,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:04,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:04,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:04,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:04,629 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 524 [2023-11-26 10:47:04,631 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 319 transitions, 750 flow. Second operand has 3 states, 3 states have (on average 454.0) internal successors, (1362), 3 states have internal predecessors, (1362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:04,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:04,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 524 [2023-11-26 10:47:04,632 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:05,165 INFO L124 PetriNetUnfolderBase]: 273/2651 cut-off events. [2023-11-26 10:47:05,165 INFO L125 PetriNetUnfolderBase]: For 496/558 co-relation queries the response was YES. [2023-11-26 10:47:05,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3409 conditions, 2651 events. 273/2651 cut-off events. For 496/558 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 21459 event pairs, 99 based on Foata normal form. 0/2299 useless extension candidates. Maximal degree in co-relation 2880. Up to 331 conditions per place. [2023-11-26 10:47:05,194 INFO L140 encePairwiseOnDemand]: 521/524 looper letters, 32 selfloop transitions, 2 changer transitions 0/318 dead transitions. [2023-11-26 10:47:05,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 318 transitions, 816 flow [2023-11-26 10:47:05,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:05,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:47:05,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1383 transitions. [2023-11-26 10:47:05,200 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8797709923664122 [2023-11-26 10:47:05,200 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1383 transitions. [2023-11-26 10:47:05,200 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1383 transitions. [2023-11-26 10:47:05,201 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:05,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1383 transitions. [2023-11-26 10:47:05,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 461.0) internal successors, (1383), 3 states have internal predecessors, (1383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:05,211 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:05,214 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:05,214 INFO L175 Difference]: Start difference. First operand has 302 places, 319 transitions, 750 flow. Second operand 3 states and 1383 transitions. [2023-11-26 10:47:05,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 318 transitions, 816 flow [2023-11-26 10:47:05,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 318 transitions, 782 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:47:05,231 INFO L231 Difference]: Finished difference. Result has 301 places, 318 transitions, 718 flow [2023-11-26 10:47:05,232 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=524, PETRI_DIFFERENCE_MINUEND_FLOW=714, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=718, PETRI_PLACES=301, PETRI_TRANSITIONS=318} [2023-11-26 10:47:05,233 INFO L281 CegarLoopForPetriNet]: 331 programPoint places, -30 predicate places. [2023-11-26 10:47:05,234 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 318 transitions, 718 flow [2023-11-26 10:47:05,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 454.0) internal successors, (1362), 3 states have internal predecessors, (1362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:05,235 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:05,235 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:05,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:47:05,236 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread_usbErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-26 10:47:05,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:05,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1204688893, now seen corresponding path program 1 times [2023-11-26 10:47:05,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:05,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618987039] [2023-11-26 10:47:05,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:05,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:05,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:05,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:05,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:05,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618987039] [2023-11-26 10:47:05,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618987039] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:05,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:05,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:47:05,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331708153] [2023-11-26 10:47:05,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:05,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:05,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:05,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:05,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:05,454 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 463 out of 524 [2023-11-26 10:47:05,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 318 transitions, 718 flow. Second operand has 3 states, 3 states have (on average 464.3333333333333) internal successors, (1393), 3 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:05,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:05,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 463 of 524 [2023-11-26 10:47:05,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:05,762 INFO L124 PetriNetUnfolderBase]: 120/1407 cut-off events. [2023-11-26 10:47:05,763 INFO L125 PetriNetUnfolderBase]: For 16/17 co-relation queries the response was YES. [2023-11-26 10:47:05,770 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1651 conditions, 1407 events. 120/1407 cut-off events. For 16/17 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 8865 event pairs, 29 based on Foata normal form. 0/1220 useless extension candidates. Maximal degree in co-relation 1610. Up to 93 conditions per place. [2023-11-26 10:47:05,783 INFO L140 encePairwiseOnDemand]: 521/524 looper letters, 14 selfloop transitions, 2 changer transitions 0/317 dead transitions. [2023-11-26 10:47:05,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 317 transitions, 748 flow [2023-11-26 10:47:05,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:05,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:47:05,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1406 transitions. [2023-11-26 10:47:05,789 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8944020356234097 [2023-11-26 10:47:05,789 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1406 transitions. [2023-11-26 10:47:05,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1406 transitions. [2023-11-26 10:47:05,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:05,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1406 transitions. [2023-11-26 10:47:05,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 468.6666666666667) internal successors, (1406), 3 states have internal predecessors, (1406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:05,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:05,803 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:05,803 INFO L175 Difference]: Start difference. First operand has 301 places, 318 transitions, 718 flow. Second operand 3 states and 1406 transitions. [2023-11-26 10:47:05,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 317 transitions, 748 flow [2023-11-26 10:47:05,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 317 transitions, 744 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:47:05,812 INFO L231 Difference]: Finished difference. Result has 300 places, 317 transitions, 716 flow [2023-11-26 10:47:05,813 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=524, PETRI_DIFFERENCE_MINUEND_FLOW=712, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=317, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=716, PETRI_PLACES=300, PETRI_TRANSITIONS=317} [2023-11-26 10:47:05,815 INFO L281 CegarLoopForPetriNet]: 331 programPoint places, -31 predicate places. [2023-11-26 10:47:05,815 INFO L495 AbstractCegarLoop]: Abstraction has has 300 places, 317 transitions, 716 flow [2023-11-26 10:47:05,817 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 464.3333333333333) internal successors, (1393), 3 states have internal predecessors, (1393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:05,817 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:05,817 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:05,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:47:05,817 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_usbErr1ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-26 10:47:05,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:05,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1827004655, now seen corresponding path program 1 times [2023-11-26 10:47:05,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:05,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878781393] [2023-11-26 10:47:05,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:05,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:05,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:05,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:05,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878781393] [2023-11-26 10:47:05,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878781393] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:05,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:05,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:47:05,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151723776] [2023-11-26 10:47:05,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:05,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:05,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:05,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:05,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:06,006 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 455 out of 524 [2023-11-26 10:47:06,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 317 transitions, 716 flow. Second operand has 3 states, 3 states have (on average 456.3333333333333) internal successors, (1369), 3 states have internal predecessors, (1369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:06,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:06,012 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 455 of 524 [2023-11-26 10:47:06,012 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:06,339 INFO L124 PetriNetUnfolderBase]: 150/1633 cut-off events. [2023-11-26 10:47:06,339 INFO L125 PetriNetUnfolderBase]: For 16/17 co-relation queries the response was YES. [2023-11-26 10:47:06,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1931 conditions, 1633 events. 150/1633 cut-off events. For 16/17 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 10927 event pairs, 33 based on Foata normal form. 0/1429 useless extension candidates. Maximal degree in co-relation 1829. Up to 109 conditions per place. [2023-11-26 10:47:06,361 INFO L140 encePairwiseOnDemand]: 516/524 looper letters, 16 selfloop transitions, 5 changer transitions 0/319 dead transitions. [2023-11-26 10:47:06,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 319 transitions, 762 flow [2023-11-26 10:47:06,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:06,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:47:06,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1389 transitions. [2023-11-26 10:47:06,368 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8835877862595419 [2023-11-26 10:47:06,369 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1389 transitions. [2023-11-26 10:47:06,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1389 transitions. [2023-11-26 10:47:06,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:06,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1389 transitions. [2023-11-26 10:47:06,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 463.0) internal successors, (1389), 3 states have internal predecessors, (1389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:06,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:06,382 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:06,383 INFO L175 Difference]: Start difference. First operand has 300 places, 317 transitions, 716 flow. Second operand 3 states and 1389 transitions. [2023-11-26 10:47:06,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 319 transitions, 762 flow [2023-11-26 10:47:06,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 319 transitions, 758 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:47:06,393 INFO L231 Difference]: Finished difference. Result has 298 places, 317 transitions, 733 flow [2023-11-26 10:47:06,394 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=524, PETRI_DIFFERENCE_MINUEND_FLOW=706, PETRI_DIFFERENCE_MINUEND_PLACES=295, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=733, PETRI_PLACES=298, PETRI_TRANSITIONS=317} [2023-11-26 10:47:06,397 INFO L281 CegarLoopForPetriNet]: 331 programPoint places, -33 predicate places. [2023-11-26 10:47:06,397 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 317 transitions, 733 flow [2023-11-26 10:47:06,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 456.3333333333333) internal successors, (1369), 3 states have internal predecessors, (1369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:06,399 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:06,400 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:06,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 10:47:06,400 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-26 10:47:06,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:06,401 INFO L85 PathProgramCache]: Analyzing trace with hash 536463419, now seen corresponding path program 1 times [2023-11-26 10:47:06,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:06,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612117509] [2023-11-26 10:47:06,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:06,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:07,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:07,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:07,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612117509] [2023-11-26 10:47:07,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612117509] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:07,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:07,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:47:07,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848973615] [2023-11-26 10:47:07,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:07,232 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:47:07,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:07,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:47:07,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:47:07,415 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 524 [2023-11-26 10:47:07,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 317 transitions, 733 flow. Second operand has 6 states, 6 states have (on average 472.1666666666667) internal successors, (2833), 6 states have internal predecessors, (2833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:07,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:07,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 524 [2023-11-26 10:47:07,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:08,296 INFO L124 PetriNetUnfolderBase]: 549/4860 cut-off events. [2023-11-26 10:47:08,297 INFO L125 PetriNetUnfolderBase]: For 99/131 co-relation queries the response was YES. [2023-11-26 10:47:08,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5826 conditions, 4860 events. 549/4860 cut-off events. For 99/131 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 44788 event pairs, 58 based on Foata normal form. 4/4200 useless extension candidates. Maximal degree in co-relation 1869. Up to 252 conditions per place. [2023-11-26 10:47:08,349 INFO L140 encePairwiseOnDemand]: 519/524 looper letters, 29 selfloop transitions, 4 changer transitions 16/336 dead transitions. [2023-11-26 10:47:08,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 336 transitions, 873 flow [2023-11-26 10:47:08,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:47:08,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:47:08,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2860 transitions. [2023-11-26 10:47:08,358 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9096692111959288 [2023-11-26 10:47:08,358 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2860 transitions. [2023-11-26 10:47:08,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2860 transitions. [2023-11-26 10:47:08,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:08,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2860 transitions. [2023-11-26 10:47:08,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 476.6666666666667) internal successors, (2860), 6 states have internal predecessors, (2860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:08,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 524.0) internal successors, (3668), 7 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:08,382 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 524.0) internal successors, (3668), 7 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:08,382 INFO L175 Difference]: Start difference. First operand has 298 places, 317 transitions, 733 flow. Second operand 6 states and 2860 transitions. [2023-11-26 10:47:08,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 336 transitions, 873 flow [2023-11-26 10:47:08,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 336 transitions, 868 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:47:08,393 INFO L231 Difference]: Finished difference. Result has 301 places, 300 transitions, 698 flow [2023-11-26 10:47:08,393 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=524, PETRI_DIFFERENCE_MINUEND_FLOW=726, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=698, PETRI_PLACES=301, PETRI_TRANSITIONS=300} [2023-11-26 10:47:08,396 INFO L281 CegarLoopForPetriNet]: 331 programPoint places, -30 predicate places. [2023-11-26 10:47:08,397 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 300 transitions, 698 flow [2023-11-26 10:47:08,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 472.1666666666667) internal successors, (2833), 6 states have internal predecessors, (2833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:08,398 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:08,399 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:08,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 10:47:08,399 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread_usbErr11ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-26 10:47:08,399 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:08,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1367550659, now seen corresponding path program 1 times [2023-11-26 10:47:08,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:08,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499259031] [2023-11-26 10:47:08,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:08,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:08,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:08,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:08,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:08,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499259031] [2023-11-26 10:47:08,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499259031] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:08,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:08,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:47:08,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2921259] [2023-11-26 10:47:08,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:08,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:08,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:08,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:08,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:08,663 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 524 [2023-11-26 10:47:08,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 300 transitions, 698 flow. Second operand has 3 states, 3 states have (on average 456.0) internal successors, (1368), 3 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:08,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:08,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 524 [2023-11-26 10:47:08,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:08,996 INFO L124 PetriNetUnfolderBase]: 197/1715 cut-off events. [2023-11-26 10:47:08,997 INFO L125 PetriNetUnfolderBase]: For 120/142 co-relation queries the response was YES. [2023-11-26 10:47:09,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2186 conditions, 1715 events. 197/1715 cut-off events. For 120/142 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 11693 event pairs, 38 based on Foata normal form. 2/1495 useless extension candidates. Maximal degree in co-relation 2103. Up to 208 conditions per place. [2023-11-26 10:47:09,024 INFO L140 encePairwiseOnDemand]: 518/524 looper letters, 31 selfloop transitions, 7 changer transitions 3/307 dead transitions. [2023-11-26 10:47:09,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 307 transitions, 794 flow [2023-11-26 10:47:09,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:09,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:47:09,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1392 transitions. [2023-11-26 10:47:09,030 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8854961832061069 [2023-11-26 10:47:09,030 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1392 transitions. [2023-11-26 10:47:09,030 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1392 transitions. [2023-11-26 10:47:09,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:09,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1392 transitions. [2023-11-26 10:47:09,036 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 464.0) internal successors, (1392), 3 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:09,040 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:09,050 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:09,055 INFO L175 Difference]: Start difference. First operand has 301 places, 300 transitions, 698 flow. Second operand 3 states and 1392 transitions. [2023-11-26 10:47:09,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 307 transitions, 794 flow [2023-11-26 10:47:09,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 307 transitions, 787 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 10:47:09,068 INFO L231 Difference]: Finished difference. Result has 286 places, 302 transitions, 741 flow [2023-11-26 10:47:09,068 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=524, PETRI_DIFFERENCE_MINUEND_FLOW=691, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=300, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=741, PETRI_PLACES=286, PETRI_TRANSITIONS=302} [2023-11-26 10:47:09,070 INFO L281 CegarLoopForPetriNet]: 331 programPoint places, -45 predicate places. [2023-11-26 10:47:09,070 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 302 transitions, 741 flow [2023-11-26 10:47:09,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 456.0) internal successors, (1368), 3 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:09,073 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:09,073 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:09,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 10:47:09,074 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread_usbErr6ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-26 10:47:09,074 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:09,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1810570325, now seen corresponding path program 1 times [2023-11-26 10:47:09,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:09,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795440020] [2023-11-26 10:47:09,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:09,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:09,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:09,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:09,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:09,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795440020] [2023-11-26 10:47:09,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795440020] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:09,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:09,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:47:09,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536702748] [2023-11-26 10:47:09,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:09,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:09,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:09,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:09,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:09,262 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 462 out of 524 [2023-11-26 10:47:09,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 302 transitions, 741 flow. Second operand has 3 states, 3 states have (on average 463.3333333333333) internal successors, (1390), 3 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:09,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:09,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 462 of 524 [2023-11-26 10:47:09,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:09,594 INFO L124 PetriNetUnfolderBase]: 179/1734 cut-off events. [2023-11-26 10:47:09,594 INFO L125 PetriNetUnfolderBase]: For 107/117 co-relation queries the response was YES. [2023-11-26 10:47:09,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2191 conditions, 1734 events. 179/1734 cut-off events. For 107/117 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 12023 event pairs, 21 based on Foata normal form. 1/1520 useless extension candidates. Maximal degree in co-relation 2111. Up to 99 conditions per place. [2023-11-26 10:47:09,614 INFO L140 encePairwiseOnDemand]: 516/524 looper letters, 15 selfloop transitions, 5 changer transitions 0/306 dead transitions. [2023-11-26 10:47:09,614 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 306 transitions, 789 flow [2023-11-26 10:47:09,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:09,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:47:09,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1409 transitions. [2023-11-26 10:47:09,619 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8963104325699746 [2023-11-26 10:47:09,619 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1409 transitions. [2023-11-26 10:47:09,619 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1409 transitions. [2023-11-26 10:47:09,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:09,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1409 transitions. [2023-11-26 10:47:09,624 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.6666666666667) internal successors, (1409), 3 states have internal predecessors, (1409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:09,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:09,629 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:09,629 INFO L175 Difference]: Start difference. First operand has 286 places, 302 transitions, 741 flow. Second operand 3 states and 1409 transitions. [2023-11-26 10:47:09,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 306 transitions, 789 flow [2023-11-26 10:47:09,633 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 306 transitions, 775 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:47:09,639 INFO L231 Difference]: Finished difference. Result has 285 places, 304 transitions, 761 flow [2023-11-26 10:47:09,639 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=524, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=761, PETRI_PLACES=285, PETRI_TRANSITIONS=304} [2023-11-26 10:47:09,640 INFO L281 CegarLoopForPetriNet]: 331 programPoint places, -46 predicate places. [2023-11-26 10:47:09,640 INFO L495 AbstractCegarLoop]: Abstraction has has 285 places, 304 transitions, 761 flow [2023-11-26 10:47:09,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 463.3333333333333) internal successors, (1390), 3 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:09,641 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:09,641 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:09,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 10:47:09,642 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-26 10:47:09,642 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:09,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1503398693, now seen corresponding path program 1 times [2023-11-26 10:47:09,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:09,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743117] [2023-11-26 10:47:09,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:09,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:09,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:09,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:09,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743117] [2023-11-26 10:47:09,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743117] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:09,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:09,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:47:09,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433176510] [2023-11-26 10:47:09,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:09,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:09,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:09,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:09,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:09,825 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 524 [2023-11-26 10:47:09,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 304 transitions, 761 flow. Second operand has 3 states, 3 states have (on average 455.0) internal successors, (1365), 3 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:09,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:09,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 524 [2023-11-26 10:47:09,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:10,236 INFO L124 PetriNetUnfolderBase]: 296/2249 cut-off events. [2023-11-26 10:47:10,236 INFO L125 PetriNetUnfolderBase]: For 307/385 co-relation queries the response was YES. [2023-11-26 10:47:10,252 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3155 conditions, 2249 events. 296/2249 cut-off events. For 307/385 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 17486 event pairs, 53 based on Foata normal form. 3/1991 useless extension candidates. Maximal degree in co-relation 3071. Up to 331 conditions per place. [2023-11-26 10:47:10,260 INFO L140 encePairwiseOnDemand]: 514/524 looper letters, 33 selfloop transitions, 15 changer transitions 0/316 dead transitions. [2023-11-26 10:47:10,261 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 316 transitions, 904 flow [2023-11-26 10:47:10,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:10,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:47:10,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1391 transitions. [2023-11-26 10:47:10,265 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8848600508905853 [2023-11-26 10:47:10,266 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1391 transitions. [2023-11-26 10:47:10,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1391 transitions. [2023-11-26 10:47:10,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:10,267 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1391 transitions. [2023-11-26 10:47:10,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 463.6666666666667) internal successors, (1391), 3 states have internal predecessors, (1391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:10,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:10,275 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:10,275 INFO L175 Difference]: Start difference. First operand has 285 places, 304 transitions, 761 flow. Second operand 3 states and 1391 transitions. [2023-11-26 10:47:10,275 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 316 transitions, 904 flow [2023-11-26 10:47:10,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 316 transitions, 894 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:47:10,285 INFO L231 Difference]: Finished difference. Result has 287 places, 315 transitions, 879 flow [2023-11-26 10:47:10,285 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=524, PETRI_DIFFERENCE_MINUEND_FLOW=751, PETRI_DIFFERENCE_MINUEND_PLACES=283, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=289, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=879, PETRI_PLACES=287, PETRI_TRANSITIONS=315} [2023-11-26 10:47:10,287 INFO L281 CegarLoopForPetriNet]: 331 programPoint places, -44 predicate places. [2023-11-26 10:47:10,287 INFO L495 AbstractCegarLoop]: Abstraction has has 287 places, 315 transitions, 879 flow [2023-11-26 10:47:10,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 455.0) internal successors, (1365), 3 states have internal predecessors, (1365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:10,288 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:10,288 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:10,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 10:47:10,288 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread_usbErr2ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-26 10:47:10,288 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:10,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1610413624, now seen corresponding path program 1 times [2023-11-26 10:47:10,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:10,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797735454] [2023-11-26 10:47:10,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:10,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:10,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:10,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:10,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797735454] [2023-11-26 10:47:10,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797735454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:10,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:10,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:47:10,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840140601] [2023-11-26 10:47:10,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:10,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:10,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:10,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:10,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:10,444 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 463 out of 524 [2023-11-26 10:47:10,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 315 transitions, 879 flow. Second operand has 3 states, 3 states have (on average 465.0) internal successors, (1395), 3 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:10,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:10,446 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 463 of 524 [2023-11-26 10:47:10,446 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:10,891 INFO L124 PetriNetUnfolderBase]: 274/2355 cut-off events. [2023-11-26 10:47:10,891 INFO L125 PetriNetUnfolderBase]: For 481/526 co-relation queries the response was YES. [2023-11-26 10:47:10,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3294 conditions, 2355 events. 274/2355 cut-off events. For 481/526 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 18608 event pairs, 29 based on Foata normal form. 4/2085 useless extension candidates. Maximal degree in co-relation 3212. Up to 158 conditions per place. [2023-11-26 10:47:10,922 INFO L140 encePairwiseOnDemand]: 521/524 looper letters, 19 selfloop transitions, 2 changer transitions 0/316 dead transitions. [2023-11-26 10:47:10,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 316 transitions, 923 flow [2023-11-26 10:47:10,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:10,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:47:10,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1408 transitions. [2023-11-26 10:47:10,929 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8956743002544529 [2023-11-26 10:47:10,929 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1408 transitions. [2023-11-26 10:47:10,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1408 transitions. [2023-11-26 10:47:10,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:10,931 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1408 transitions. [2023-11-26 10:47:10,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 469.3333333333333) internal successors, (1408), 3 states have internal predecessors, (1408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:10,939 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:10,940 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:10,940 INFO L175 Difference]: Start difference. First operand has 287 places, 315 transitions, 879 flow. Second operand 3 states and 1408 transitions. [2023-11-26 10:47:10,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 316 transitions, 923 flow [2023-11-26 10:47:10,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 316 transitions, 893 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:47:10,952 INFO L231 Difference]: Finished difference. Result has 286 places, 314 transitions, 851 flow [2023-11-26 10:47:10,953 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=524, PETRI_DIFFERENCE_MINUEND_FLOW=847, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=851, PETRI_PLACES=286, PETRI_TRANSITIONS=314} [2023-11-26 10:47:10,954 INFO L281 CegarLoopForPetriNet]: 331 programPoint places, -45 predicate places. [2023-11-26 10:47:10,955 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 314 transitions, 851 flow [2023-11-26 10:47:10,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 465.0) internal successors, (1395), 3 states have internal predecessors, (1395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:10,955 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:10,956 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:10,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 10:47:10,956 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread_usbErr3ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-26 10:47:10,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:10,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1524818521, now seen corresponding path program 1 times [2023-11-26 10:47:10,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:10,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310119454] [2023-11-26 10:47:10,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:10,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:10,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:11,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:11,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:11,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310119454] [2023-11-26 10:47:11,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310119454] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:11,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:11,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:47:11,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241502655] [2023-11-26 10:47:11,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:11,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:11,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:11,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:11,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:11,181 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 454 out of 524 [2023-11-26 10:47:11,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 314 transitions, 851 flow. Second operand has 3 states, 3 states have (on average 456.0) internal successors, (1368), 3 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:11,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:11,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 454 of 524 [2023-11-26 10:47:11,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:11,722 INFO L124 PetriNetUnfolderBase]: 318/2518 cut-off events. [2023-11-26 10:47:11,722 INFO L125 PetriNetUnfolderBase]: For 646/722 co-relation queries the response was YES. [2023-11-26 10:47:11,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3597 conditions, 2518 events. 318/2518 cut-off events. For 646/722 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 20083 event pairs, 39 based on Foata normal form. 4/2225 useless extension candidates. Maximal degree in co-relation 3513. Up to 287 conditions per place. [2023-11-26 10:47:11,757 INFO L140 encePairwiseOnDemand]: 518/524 looper letters, 41 selfloop transitions, 9 changer transitions 0/321 dead transitions. [2023-11-26 10:47:11,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 321 transitions, 981 flow [2023-11-26 10:47:11,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:11,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:47:11,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1392 transitions. [2023-11-26 10:47:11,763 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8854961832061069 [2023-11-26 10:47:11,763 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1392 transitions. [2023-11-26 10:47:11,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1392 transitions. [2023-11-26 10:47:11,764 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:11,765 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1392 transitions. [2023-11-26 10:47:11,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 464.0) internal successors, (1392), 3 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:11,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:11,773 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:11,773 INFO L175 Difference]: Start difference. First operand has 286 places, 314 transitions, 851 flow. Second operand 3 states and 1392 transitions. [2023-11-26 10:47:11,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 321 transitions, 981 flow [2023-11-26 10:47:11,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 321 transitions, 977 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:47:11,785 INFO L231 Difference]: Finished difference. Result has 288 places, 319 transitions, 921 flow [2023-11-26 10:47:11,786 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=524, PETRI_DIFFERENCE_MINUEND_FLOW=847, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=305, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=921, PETRI_PLACES=288, PETRI_TRANSITIONS=319} [2023-11-26 10:47:11,786 INFO L281 CegarLoopForPetriNet]: 331 programPoint places, -43 predicate places. [2023-11-26 10:47:11,787 INFO L495 AbstractCegarLoop]: Abstraction has has 288 places, 319 transitions, 921 flow [2023-11-26 10:47:11,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 456.0) internal successors, (1368), 3 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:11,787 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:11,788 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:11,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 10:47:11,788 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-26 10:47:11,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:11,789 INFO L85 PathProgramCache]: Analyzing trace with hash -112622177, now seen corresponding path program 1 times [2023-11-26 10:47:11,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:11,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904657228] [2023-11-26 10:47:11,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:11,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:11,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:11,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:11,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:11,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904657228] [2023-11-26 10:47:11,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904657228] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:11,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:11,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:47:11,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128745744] [2023-11-26 10:47:11,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:11,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:47:11,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:11,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:47:11,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:47:12,022 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 452 out of 524 [2023-11-26 10:47:12,024 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 319 transitions, 921 flow. Second operand has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:12,024 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:12,024 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 452 of 524 [2023-11-26 10:47:12,024 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:12,706 INFO L124 PetriNetUnfolderBase]: 568/3863 cut-off events. [2023-11-26 10:47:12,707 INFO L125 PetriNetUnfolderBase]: For 2036/2225 co-relation queries the response was YES. [2023-11-26 10:47:12,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6018 conditions, 3863 events. 568/3863 cut-off events. For 2036/2225 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 35615 event pairs, 146 based on Foata normal form. 4/3440 useless extension candidates. Maximal degree in co-relation 5523. Up to 601 conditions per place. [2023-11-26 10:47:12,755 INFO L140 encePairwiseOnDemand]: 518/524 looper letters, 46 selfloop transitions, 9 changer transitions 1/326 dead transitions. [2023-11-26 10:47:12,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 326 transitions, 1067 flow [2023-11-26 10:47:12,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:47:12,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:47:12,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1388 transitions. [2023-11-26 10:47:12,761 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8829516539440203 [2023-11-26 10:47:12,761 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1388 transitions. [2023-11-26 10:47:12,761 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1388 transitions. [2023-11-26 10:47:12,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:12,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1388 transitions. [2023-11-26 10:47:12,767 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 462.6666666666667) internal successors, (1388), 3 states have internal predecessors, (1388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:12,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:12,771 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 524.0) internal successors, (2096), 4 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:12,772 INFO L175 Difference]: Start difference. First operand has 288 places, 319 transitions, 921 flow. Second operand 3 states and 1388 transitions. [2023-11-26 10:47:12,772 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 326 transitions, 1067 flow [2023-11-26 10:47:12,779 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 326 transitions, 1043 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-11-26 10:47:12,786 INFO L231 Difference]: Finished difference. Result has 290 places, 323 transitions, 973 flow [2023-11-26 10:47:12,787 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=524, PETRI_DIFFERENCE_MINUEND_FLOW=897, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=319, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=310, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=973, PETRI_PLACES=290, PETRI_TRANSITIONS=323} [2023-11-26 10:47:12,788 INFO L281 CegarLoopForPetriNet]: 331 programPoint places, -41 predicate places. [2023-11-26 10:47:12,788 INFO L495 AbstractCegarLoop]: Abstraction has has 290 places, 323 transitions, 973 flow [2023-11-26 10:47:12,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 455.3333333333333) internal successors, (1366), 3 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:12,789 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:12,789 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:12,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 10:47:12,789 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread_usbErr11ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-26 10:47:12,790 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:12,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1567574868, now seen corresponding path program 1 times [2023-11-26 10:47:12,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:12,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013045819] [2023-11-26 10:47:12,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:12,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:12,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:12,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:12,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:12,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013045819] [2023-11-26 10:47:12,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013045819] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:12,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:12,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:47:12,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421416434] [2023-11-26 10:47:12,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:12,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:47:12,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:12,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:47:12,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:47:12,976 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 467 out of 524 [2023-11-26 10:47:12,979 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 323 transitions, 973 flow. Second operand has 5 states, 5 states have (on average 469.4) internal successors, (2347), 5 states have internal predecessors, (2347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:12,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:12,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 467 of 524 [2023-11-26 10:47:12,980 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:13,954 INFO L124 PetriNetUnfolderBase]: 561/4598 cut-off events. [2023-11-26 10:47:13,955 INFO L125 PetriNetUnfolderBase]: For 1482/1567 co-relation queries the response was YES. [2023-11-26 10:47:14,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6755 conditions, 4598 events. 561/4598 cut-off events. For 1482/1567 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 38924 event pairs, 57 based on Foata normal form. 6/4097 useless extension candidates. Maximal degree in co-relation 6671. Up to 283 conditions per place. [2023-11-26 10:47:14,018 INFO L140 encePairwiseOnDemand]: 516/524 looper letters, 32 selfloop transitions, 8 changer transitions 0/345 dead transitions. [2023-11-26 10:47:14,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 345 transitions, 1104 flow [2023-11-26 10:47:14,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 10:47:14,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-26 10:47:14,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3310 transitions. [2023-11-26 10:47:14,029 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9023991275899673 [2023-11-26 10:47:14,029 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3310 transitions. [2023-11-26 10:47:14,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3310 transitions. [2023-11-26 10:47:14,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:14,032 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3310 transitions. [2023-11-26 10:47:14,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 472.85714285714283) internal successors, (3310), 7 states have internal predecessors, (3310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:14,049 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 524.0) internal successors, (4192), 8 states have internal predecessors, (4192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:14,050 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 524.0) internal successors, (4192), 8 states have internal predecessors, (4192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:14,051 INFO L175 Difference]: Start difference. First operand has 290 places, 323 transitions, 973 flow. Second operand 7 states and 3310 transitions. [2023-11-26 10:47:14,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 345 transitions, 1104 flow [2023-11-26 10:47:14,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 345 transitions, 1074 flow, removed 6 selfloop flow, removed 2 redundant places. [2023-11-26 10:47:14,064 INFO L231 Difference]: Finished difference. Result has 299 places, 330 transitions, 1001 flow [2023-11-26 10:47:14,065 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=524, PETRI_DIFFERENCE_MINUEND_FLOW=943, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=316, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1001, PETRI_PLACES=299, PETRI_TRANSITIONS=330} [2023-11-26 10:47:14,066 INFO L281 CegarLoopForPetriNet]: 331 programPoint places, -32 predicate places. [2023-11-26 10:47:14,066 INFO L495 AbstractCegarLoop]: Abstraction has has 299 places, 330 transitions, 1001 flow [2023-11-26 10:47:14,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 469.4) internal successors, (2347), 5 states have internal predecessors, (2347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:14,067 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:14,067 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:14,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 10:47:14,068 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-26 10:47:14,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:14,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1712344818, now seen corresponding path program 1 times [2023-11-26 10:47:14,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:14,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111759615] [2023-11-26 10:47:14,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:14,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:14,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:47:14,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:47:14,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:47:14,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111759615] [2023-11-26 10:47:14,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111759615] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:47:14,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:47:14,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:47:14,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924370409] [2023-11-26 10:47:14,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:47:14,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:47:14,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:47:14,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:47:14,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:47:14,244 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 469 out of 524 [2023-11-26 10:47:14,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 299 places, 330 transitions, 1001 flow. Second operand has 5 states, 5 states have (on average 471.0) internal successors, (2355), 5 states have internal predecessors, (2355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:14,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:47:14,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 469 of 524 [2023-11-26 10:47:14,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:47:16,307 INFO L124 PetriNetUnfolderBase]: 908/7785 cut-off events. [2023-11-26 10:47:16,308 INFO L125 PetriNetUnfolderBase]: For 2385/2507 co-relation queries the response was YES. [2023-11-26 10:47:16,365 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11554 conditions, 7785 events. 908/7785 cut-off events. For 2385/2507 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 74465 event pairs, 83 based on Foata normal form. 12/6977 useless extension candidates. Maximal degree in co-relation 11466. Up to 536 conditions per place. [2023-11-26 10:47:16,390 INFO L140 encePairwiseOnDemand]: 517/524 looper letters, 34 selfloop transitions, 9 changer transitions 0/357 dead transitions. [2023-11-26 10:47:16,391 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 357 transitions, 1152 flow [2023-11-26 10:47:16,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 10:47:16,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-26 10:47:16,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3327 transitions. [2023-11-26 10:47:16,402 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9070338058887677 [2023-11-26 10:47:16,402 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3327 transitions. [2023-11-26 10:47:16,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3327 transitions. [2023-11-26 10:47:16,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:47:16,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3327 transitions. [2023-11-26 10:47:16,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 475.2857142857143) internal successors, (3327), 7 states have internal predecessors, (3327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:16,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 524.0) internal successors, (4192), 8 states have internal predecessors, (4192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:16,423 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 524.0) internal successors, (4192), 8 states have internal predecessors, (4192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:16,424 INFO L175 Difference]: Start difference. First operand has 299 places, 330 transitions, 1001 flow. Second operand 7 states and 3327 transitions. [2023-11-26 10:47:16,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 357 transitions, 1152 flow [2023-11-26 10:47:16,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 305 places, 357 transitions, 1152 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:47:16,438 INFO L231 Difference]: Finished difference. Result has 311 places, 338 transitions, 1069 flow [2023-11-26 10:47:16,439 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=524, PETRI_DIFFERENCE_MINUEND_FLOW=1001, PETRI_DIFFERENCE_MINUEND_PLACES=299, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=330, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1069, PETRI_PLACES=311, PETRI_TRANSITIONS=338} [2023-11-26 10:47:16,440 INFO L281 CegarLoopForPetriNet]: 331 programPoint places, -20 predicate places. [2023-11-26 10:47:16,440 INFO L495 AbstractCegarLoop]: Abstraction has has 311 places, 338 transitions, 1069 flow [2023-11-26 10:47:16,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 471.0) internal successors, (2355), 5 states have internal predecessors, (2355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:47:16,441 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:47:16,442 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:16,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 10:47:16,442 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-26 10:47:16,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:47:16,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1340074754, now seen corresponding path program 1 times [2023-11-26 10:47:16,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:47:16,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776197951] [2023-11-26 10:47:16,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:47:16,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:47:16,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:47:16,496 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:47:16,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:47:16,567 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:47:16,568 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:47:16,569 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (39 of 40 remaining) [2023-11-26 10:47:16,571 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2023-11-26 10:47:16,571 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2023-11-26 10:47:16,571 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2023-11-26 10:47:16,572 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2023-11-26 10:47:16,572 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2023-11-26 10:47:16,572 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (33 of 40 remaining) [2023-11-26 10:47:16,572 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2023-11-26 10:47:16,572 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2023-11-26 10:47:16,573 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2023-11-26 10:47:16,573 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 40 remaining) [2023-11-26 10:47:16,573 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2023-11-26 10:47:16,573 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr11ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2023-11-26 10:47:16,573 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2023-11-26 10:47:16,573 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr12ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2023-11-26 10:47:16,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2023-11-26 10:47:16,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2023-11-26 10:47:16,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2023-11-26 10:47:16,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2023-11-26 10:47:16,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2023-11-26 10:47:16,575 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2023-11-26 10:47:16,575 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2023-11-26 10:47:16,575 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2023-11-26 10:47:16,575 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2023-11-26 10:47:16,575 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 40 remaining) [2023-11-26 10:47:16,576 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2023-11-26 10:47:16,576 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2023-11-26 10:47:16,576 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr11ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2023-11-26 10:47:16,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2023-11-26 10:47:16,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr12ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2023-11-26 10:47:16,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2023-11-26 10:47:16,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2023-11-26 10:47:16,579 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2023-11-26 10:47:16,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2023-11-26 10:47:16,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2023-11-26 10:47:16,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2023-11-26 10:47:16,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2023-11-26 10:47:16,580 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2023-11-26 10:47:16,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2023-11-26 10:47:16,581 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbThread1of1ForFork0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 40 remaining) [2023-11-26 10:47:16,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 10:47:16,581 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:47:16,591 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 10:47:16,591 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:47:16,708 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet52 could not be translated [2023-11-26 10:47:16,709 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre53 could not be translated [2023-11-26 10:47:16,710 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated [2023-11-26 10:47:16,711 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated [2023-11-26 10:47:16,711 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated [2023-11-26 10:47:16,711 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated [2023-11-26 10:47:16,712 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet36 could not be translated [2023-11-26 10:47:16,713 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre37 could not be translated [2023-11-26 10:47:16,715 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret41 could not be translated [2023-11-26 10:47:16,718 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated [2023-11-26 10:47:16,718 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated [2023-11-26 10:47:16,723 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret45 could not be translated [2023-11-26 10:47:16,724 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated [2023-11-26 10:47:16,724 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated [2023-11-26 10:47:16,724 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated [2023-11-26 10:47:16,725 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated [2023-11-26 10:47:16,725 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated [2023-11-26 10:47:16,725 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated [2023-11-26 10:47:16,726 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-11-26 10:47:16,726 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated [2023-11-26 10:47:16,727 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet47 could not be translated [2023-11-26 10:47:16,728 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated [2023-11-26 10:47:16,729 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-11-26 10:47:16,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:47:16 BasicIcfg [2023-11-26 10:47:16,743 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:47:16,743 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:47:16,743 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:47:16,744 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:47:16,744 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:47:01" (3/4) ... [2023-11-26 10:47:16,746 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 10:47:16,747 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:47:16,748 INFO L158 Benchmark]: Toolchain (without parser) took 17565.40ms. Allocated memory was 178.3MB in the beginning and 509.6MB in the end (delta: 331.4MB). Free memory was 144.0MB in the beginning and 367.4MB in the end (delta: -223.3MB). Peak memory consumption was 109.8MB. Max. memory is 16.1GB. [2023-11-26 10:47:16,748 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 178.3MB. Free memory is still 150.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:47:16,749 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1367.34ms. Allocated memory is still 178.3MB. Free memory was 144.0MB in the beginning and 88.1MB in the end (delta: 55.9MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2023-11-26 10:47:16,749 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.44ms. Allocated memory is still 178.3MB. Free memory was 88.1MB in the beginning and 83.9MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:47:16,750 INFO L158 Benchmark]: Boogie Preprocessor took 67.02ms. Allocated memory is still 178.3MB. Free memory was 83.9MB in the beginning and 80.5MB in the end (delta: 3.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 10:47:16,750 INFO L158 Benchmark]: RCFGBuilder took 1018.31ms. Allocated memory is still 178.3MB. Free memory was 80.5MB in the beginning and 133.0MB in the end (delta: -52.6MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2023-11-26 10:47:16,750 INFO L158 Benchmark]: TraceAbstraction took 15011.79ms. Allocated memory was 178.3MB in the beginning and 509.6MB in the end (delta: 331.4MB). Free memory was 133.0MB in the beginning and 367.4MB in the end (delta: -234.4MB). Peak memory consumption was 222.8MB. Max. memory is 16.1GB. [2023-11-26 10:47:16,751 INFO L158 Benchmark]: Witness Printer took 4.21ms. Allocated memory is still 509.6MB. Free memory is still 367.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:47:16,752 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 178.3MB. Free memory is still 150.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1367.34ms. Allocated memory is still 178.3MB. Free memory was 144.0MB in the beginning and 88.1MB in the end (delta: 55.9MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.44ms. Allocated memory is still 178.3MB. Free memory was 88.1MB in the beginning and 83.9MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.02ms. Allocated memory is still 178.3MB. Free memory was 83.9MB in the beginning and 80.5MB in the end (delta: 3.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1018.31ms. Allocated memory is still 178.3MB. Free memory was 80.5MB in the beginning and 133.0MB in the end (delta: -52.6MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. * TraceAbstraction took 15011.79ms. Allocated memory was 178.3MB in the beginning and 509.6MB in the end (delta: 331.4MB). Free memory was 133.0MB in the beginning and 367.4MB in the end (delta: -234.4MB). Peak memory consumption was 222.8MB. Max. memory is 16.1GB. * Witness Printer took 4.21ms. Allocated memory is still 509.6MB. Free memory is still 367.4MB. 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: IdentifierExpression #t~nondet52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre53 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 1699]: Data race detected [2023-11-26 10:47:16,800 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet52 could not be translated [2023-11-26 10:47:16,800 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre53 could not be translated [2023-11-26 10:47:16,801 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated [2023-11-26 10:47:16,802 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated [2023-11-26 10:47:16,802 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated [2023-11-26 10:47:16,802 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated [2023-11-26 10:47:16,802 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet36 could not be translated [2023-11-26 10:47:16,803 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre37 could not be translated [2023-11-26 10:47:16,803 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret41 could not be translated [2023-11-26 10:47:16,804 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated [2023-11-26 10:47:16,804 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated [2023-11-26 10:47:16,804 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret45 could not be translated [2023-11-26 10:47:16,805 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated [2023-11-26 10:47:16,805 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated [2023-11-26 10:47:16,805 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated [2023-11-26 10:47:16,805 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated [2023-11-26 10:47:16,806 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated [2023-11-26 10:47:16,806 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated [2023-11-26 10:47:16,806 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-11-26 10:47:16,806 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated [2023-11-26 10:47:16,807 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet47 could not be translated [2023-11-26 10:47:16,807 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated [2023-11-26 10:47:16,807 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-11-26 10:47:16,841 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet52 could not be translated [2023-11-26 10:47:16,841 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre53 could not be translated [2023-11-26 10:47:16,842 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated [2023-11-26 10:47:16,842 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated [2023-11-26 10:47:16,842 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated [2023-11-26 10:47:16,843 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated [2023-11-26 10:47:16,843 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet36 could not be translated [2023-11-26 10:47:16,843 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre37 could not be translated [2023-11-26 10:47:16,843 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret41 could not be translated [2023-11-26 10:47:16,844 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated [2023-11-26 10:47:16,844 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret45 could not be translated [2023-11-26 10:47:16,844 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated [2023-11-26 10:47:16,845 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated [2023-11-26 10:47:16,845 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated [2023-11-26 10:47:16,845 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated [2023-11-26 10:47:16,845 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated [2023-11-26 10:47:16,845 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated [2023-11-26 10:47:16,846 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated [2023-11-26 10:47:16,846 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-11-26 10:47:16,846 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch44 could not be translated [2023-11-26 10:47:16,846 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet43 could not be translated [2023-11-26 10:47:16,846 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet47 could not be translated [2023-11-26 10:47:16,847 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated Data race detected The following path leads to a data race: [L1694] 0 pthread_t t1, t2; VAL [t1={3:0}, t2={4:0}] [L1695] 0 pthread_mutex_t mutex; VAL [mutex={5:0}, t1={3:0}, t2={4:0}] [L1696] 0 int pdev; VAL [mutex={5:0}, pdev=0, t1={3:0}, t2={4:0}] [L1741] 0 int ldv_usb_state; VAL [ldv_usb_state=0, mutex={5:0}, pdev=0, t1={3:0}, t2={4:0}] [L1798] CALL 0 module_init() [L1779] 0 pdev = 1 VAL [ldv_usb_state=0, mutex={5:0}, pdev=1, t1={3:0}, t2={4:0}] [L1780] EXPR 0 pdev==1 [L1780] CALL 0 ldv_assert(pdev==1) [L1693] COND FALSE 0 !(!expression) VAL [\old(expression)=1, expression=1, ldv_usb_state=0, mutex={5:0}, pdev=1, t1={3:0}, t2={4:0}] [L1780] RET 0 ldv_assert(pdev==1) [L1781] COND TRUE 0 __VERIFIER_nondet_int() VAL [ldv_usb_state=0, mutex={5:0}, pdev=1, t1={3:0}, t2={4:0}] [L1782] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread_usb, ((void *)0)) VAL [ldv_usb_state=0, mutex={5:0}, pdev=1, t1={3:0}, t2={4:0}] [L1743] 1 ldv_usb_state = 0 VAL [arg={0:0}, arg={0:0}, ldv_usb_state=0, mutex={5:0}, pdev=1, t1={3:0}, t2={4:0}] [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 VAL [arg={0:0}, arg={0:0}, ldv_usb_state=0, mutex={5:0}, pdev=1, t1={3:0}, t2={4:0}] [L1747] 1 case 0: VAL [arg={0:0}, arg={0:0}, ldv_usb_state=0, mutex={5:0}, pdev=1, t1={3:0}, t2={4:0}] [L1748] 1 ldv_usb_state==0 VAL [arg={0:0}, arg={0:0}, ldv_usb_state=0, mutex={5:0}, pdev=1, t1={3:0}, t2={4:0}] [L1747] 1 case 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() VAL [ldv_usb_state=0, mutex={5:0}, pdev=1, t1={3:0}, t2={4:0}] [L1718] FCALL, FORK 1 pthread_create(&t2, ((void *)0), thread_ath9k, ((void *)0)) VAL [ldv_usb_state=0, mutex={5:0}, pdev=1, t1={3:0}, t2={4:0}] [L1719] 1 return 0; VAL [\result=0, ldv_usb_state=0, mutex={5:0}, pdev=1, t1={3:0}, t2={4:0}] [L1731] RET, EXPR 1 ieee80211_register_hw() [L1731] 1 error = ieee80211_register_hw() VAL [error=0, ldv_usb_state=0, mutex={5:0}, pdev=1, t1={3:0}, t2={4:0}] [L1732] COND FALSE 1 !(\read(error)) VAL [error=0, ldv_usb_state=0, mutex={5:0}, pdev=1, t1={3:0}, t2={4:0}] [L1704] COND TRUE 2 1 VAL [arg={0:0}, arg={0:0}, ldv_usb_state=0, mutex={5:0}, pdev=1, t1={3:0}, t2={4:0}] [L1706] 2 case 1: [L1707] CALL 2 ath9k_flush() [L1734] 1 return 0; VAL [\result=0, error=0, ldv_usb_state=0, mutex={5:0}, pdev=1, t1={3:0}, t2={4:0}] [L1749] RET, EXPR 1 ath_ahb_probe() [L1749] 1 probe_ret = ath_ahb_probe() VAL [arg={0:0}, arg={0:0}, ldv_usb_state=0, mutex={5:0}, pdev=1, probe_ret=0, t1={3:0}, t2={4:0}] [L1747] 1 case 0: VAL [arg={0:0}, arg={0:0}, ldv_usb_state=0, mutex={5:0}, pdev=1, probe_ret=0, t1={3:0}, t2={4:0}] [L1752] 1 ldv_usb_state = 1 VAL [arg={0:0}, arg={0:0}, ldv_usb_state=1, mutex={5:0}, pdev=1, probe_ret=0, t1={3:0}, t2={4:0}] [L1753] 1 pdev = 7 VAL [arg={0:0}, arg={0:0}, ldv_usb_state=1, mutex={5:0}, pdev=7, probe_ret=0, t1={3:0}, t2={4:0}] [L1699] 2 pdev = 6 VAL [ldv_usb_state=1, mutex={5:0}, pdev=6, t1={3:0}, t2={4:0}] [L1753] 1 pdev = 7 VAL [arg={0:0}, arg={0:0}, ldv_usb_state=1, mutex={5:0}, pdev=6, probe_ret=0, t1={3:0}, t2={4:0}] [L1699] 2 pdev = 6 VAL [ldv_usb_state=1, mutex={5:0}, pdev=6, t1={3:0}, t2={4:0}] Now there is a data race on ~pdev~0 between C: pdev = 7 [1753] and C: pdev = 6 [1699] - 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: 1753]: 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, 526 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: 14.7s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1350 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 466 mSDsluCounter, 325 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40 mSDsCounter, 110 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1405 IncrementalHoareTripleChecker+Invalid, 1515 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 110 mSolverCounterUnsat, 285 mSDtfsCounter, 1405 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1069occurred in iteration=14, InterpolantAutomatonStates: 53, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 1130 NumberOfCodeBlocks, 1130 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1004 ConstructedInterpolants, 0 QuantifiedInterpolants, 1159 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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! [2023-11-26 10:47:16,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88afe3ea-4019-470c-a084-9e0bd247b015/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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