./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d7159a-8d18-4d6f-b2fb-17ce56f818b9/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d7159a-8d18-4d6f-b2fb-17ce56f818b9/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d7159a-8d18-4d6f-b2fb-17ce56f818b9/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d7159a-8d18-4d6f-b2fb-17ce56f818b9/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.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_e8d7159a-8d18-4d6f-b2fb-17ce56f818b9/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d7159a-8d18-4d6f-b2fb-17ce56f818b9/bin/utaipan-verify-t7M7D8N6sZ --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0f799b8cb369af433cd7b4f4a2ae1c7efd2306d185f06da0302d2727c00c6bf0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:17:03,803 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:17:03,925 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d7159a-8d18-4d6f-b2fb-17ce56f818b9/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-19 05:17:03,930 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:17:03,930 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:17:03,957 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:17:03,958 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:17:03,959 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:17:03,960 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:17:03,960 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:17:03,961 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:17:03,962 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:17:03,962 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:17:03,963 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:17:03,963 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:17:03,964 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:17:03,965 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:17:03,965 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:17:03,966 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:17:03,966 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:17:03,967 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:17:03,968 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:17:03,968 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:17:03,969 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:17:03,970 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:17:03,970 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:17:03,970 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:17:03,971 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:17:03,971 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:17:03,972 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:17:03,972 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:17:03,973 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 05:17:03,973 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:17:03,973 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:17:03,974 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:17:03,974 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:17:03,975 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:17:03,975 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:17:03,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:17:03,976 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:17:03,977 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:17:03,977 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:17:03,978 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:17:03,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:17:03,978 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:17:03,979 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:17:03,979 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:17:03,979 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e8d7159a-8d18-4d6f-b2fb-17ce56f818b9/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d7159a-8d18-4d6f-b2fb-17ce56f818b9/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f799b8cb369af433cd7b4f4a2ae1c7efd2306d185f06da0302d2727c00c6bf0 [2023-11-19 05:17:04,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:17:04,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:17:04,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:17:04,296 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:17:04,296 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:17:04,297 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d7159a-8d18-4d6f-b2fb-17ce56f818b9/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-races/race-4_2-thread_local_vars.i [2023-11-19 05:17:07,369 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:17:07,846 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:17:07,846 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d7159a-8d18-4d6f-b2fb-17ce56f818b9/sv-benchmarks/c/ldv-races/race-4_2-thread_local_vars.i [2023-11-19 05:17:07,878 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d7159a-8d18-4d6f-b2fb-17ce56f818b9/bin/utaipan-verify-t7M7D8N6sZ/data/9463b9859/fdc5987d2a0942b5a94c1a751c18cf22/FLAGf0f41ed14 [2023-11-19 05:17:08,043 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d7159a-8d18-4d6f-b2fb-17ce56f818b9/bin/utaipan-verify-t7M7D8N6sZ/data/9463b9859/fdc5987d2a0942b5a94c1a751c18cf22 [2023-11-19 05:17:08,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:17:08,053 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:17:08,055 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:17:08,055 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:17:08,060 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:17:08,061 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:17:08" (1/1) ... [2023-11-19 05:17:08,062 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33d8b907 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:08, skipping insertion in model container [2023-11-19 05:17:08,063 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:17:08" (1/1) ... [2023-11-19 05:17:08,160 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:17:09,112 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:17:09,129 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:17:09,197 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:17:09,340 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:17:09,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09 WrapperNode [2023-11-19 05:17:09,341 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:17:09,342 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:17:09,342 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:17:09,343 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:17:09,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09" (1/1) ... [2023-11-19 05:17:09,384 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09" (1/1) ... [2023-11-19 05:17:09,419 INFO L138 Inliner]: procedures = 486, calls = 45, calls flagged for inlining = 17, calls inlined = 23, statements flattened = 303 [2023-11-19 05:17:09,420 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:17:09,421 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:17:09,421 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:17:09,421 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:17:09,430 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09" (1/1) ... [2023-11-19 05:17:09,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09" (1/1) ... [2023-11-19 05:17:09,437 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09" (1/1) ... [2023-11-19 05:17:09,437 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09" (1/1) ... [2023-11-19 05:17:09,453 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09" (1/1) ... [2023-11-19 05:17:09,458 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09" (1/1) ... [2023-11-19 05:17:09,463 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09" (1/1) ... [2023-11-19 05:17:09,467 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09" (1/1) ... [2023-11-19 05:17:09,475 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:17:09,476 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:17:09,476 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:17:09,476 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:17:09,477 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09" (1/1) ... [2023-11-19 05:17:09,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:17:09,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d7159a-8d18-4d6f-b2fb-17ce56f818b9/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:17:09,551 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d7159a-8d18-4d6f-b2fb-17ce56f818b9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:17:09,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d7159a-8d18-4d6f-b2fb-17ce56f818b9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:17:09,587 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2023-11-19 05:17:09,587 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2023-11-19 05:17:09,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:17:09,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:17:09,588 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2023-11-19 05:17:09,588 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2023-11-19 05:17:09,588 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 05:17:09,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:17:09,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:17:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:17:09,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:17:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:17:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:17:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:17:09,594 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 05:17:09,875 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:17:09,877 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:17:10,299 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:17:10,322 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:17:10,322 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 05:17:10,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:17:10 BoogieIcfgContainer [2023-11-19 05:17:10,341 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:17:10,343 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:17:10,343 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:17:10,346 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:17:10,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:17:08" (1/3) ... [2023-11-19 05:17:10,347 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f11e71c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:17:10, skipping insertion in model container [2023-11-19 05:17:10,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:17:09" (2/3) ... [2023-11-19 05:17:10,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f11e71c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:17:10, skipping insertion in model container [2023-11-19 05:17:10,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:17:10" (3/3) ... [2023-11-19 05:17:10,350 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_2-thread_local_vars.i [2023-11-19 05:17:10,359 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 05:17:10,369 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:17:10,369 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2023-11-19 05:17:10,369 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 05:17:10,527 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-11-19 05:17:10,580 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 05:17:10,594 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 481 places, 523 transitions, 1073 flow [2023-11-19 05:17:10,597 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 481 places, 523 transitions, 1073 flow [2023-11-19 05:17:10,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 481 places, 523 transitions, 1073 flow [2023-11-19 05:17:10,762 INFO L124 PetriNetUnfolderBase]: 45/534 cut-off events. [2023-11-19 05:17:10,763 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 05:17:10,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 545 conditions, 534 events. 45/534 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1592 event pairs, 0 based on Foata normal form. 0/450 useless extension candidates. Maximal degree in co-relation 371. Up to 11 conditions per place. [2023-11-19 05:17:10,843 INFO L119 LiptonReduction]: Number of co-enabled transitions 24066 [2023-11-19 05:17:25,878 INFO L134 LiptonReduction]: Checked pairs total: 63066 [2023-11-19 05:17:25,879 INFO L136 LiptonReduction]: Total number of compositions: 713 [2023-11-19 05:17:25,889 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 95 places, 107 transitions, 241 flow [2023-11-19 05:17:26,065 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3229 states, 3066 states have (on average 3.2064579256360077) internal successors, (9831), 3228 states have internal predecessors, (9831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:26,085 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:17:26,091 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=FINITE_AUTOMATA, 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;@778b4444, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:17:26,091 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-11-19 05:17:26,105 INFO L276 IsEmpty]: Start isEmpty. Operand has 3229 states, 3066 states have (on average 3.2064579256360077) internal successors, (9831), 3228 states have internal predecessors, (9831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:26,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2023-11-19 05:17:26,110 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:26,111 INFO L195 NwaCegarLoop]: trace histogram [1] [2023-11-19 05:17:26,111 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-19 05:17:26,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:26,116 INFO L85 PathProgramCache]: Analyzing trace with hash 1766, now seen corresponding path program 1 times [2023-11-19 05:17:26,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:17:26,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309769503] [2023-11-19 05:17:26,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:26,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:17:26,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:26,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:17:26,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:17:26,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309769503] [2023-11-19 05:17:26,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309769503] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:17:26,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:17:26,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 05:17:26,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006364828] [2023-11-19 05:17:26,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:17:26,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:17:26,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:17:26,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:17:26,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:17:26,446 INFO L87 Difference]: Start difference. First operand has 3229 states, 3066 states have (on average 3.2064579256360077) internal successors, (9831), 3228 states have internal predecessors, (9831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:26,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:17:26,640 INFO L93 Difference]: Finished difference Result 2741 states and 8124 transitions. [2023-11-19 05:17:26,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:17:26,642 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2023-11-19 05:17:26,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:17:26,702 INFO L225 Difference]: With dead ends: 2741 [2023-11-19 05:17:26,702 INFO L226 Difference]: Without dead ends: 2730 [2023-11-19 05:17:26,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:17:26,706 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:17:26,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:17:26,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2730 states. [2023-11-19 05:17:26,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2730 to 2730. [2023-11-19 05:17:26,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2730 states, 2637 states have (on average 3.072810011376564) internal successors, (8103), 2729 states have internal predecessors, (8103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:26,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2730 states to 2730 states and 8103 transitions. [2023-11-19 05:17:26,950 INFO L78 Accepts]: Start accepts. Automaton has 2730 states and 8103 transitions. Word has length 1 [2023-11-19 05:17:26,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:17:26,951 INFO L495 AbstractCegarLoop]: Abstraction has 2730 states and 8103 transitions. [2023-11-19 05:17:26,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:26,952 INFO L276 IsEmpty]: Start isEmpty. Operand 2730 states and 8103 transitions. [2023-11-19 05:17:26,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 05:17:26,953 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:26,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 05:17:26,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:17:26,954 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread_usbErr11ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-19 05:17:26,954 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:26,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1112480844, now seen corresponding path program 1 times [2023-11-19 05:17:26,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:17:26,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834559284] [2023-11-19 05:17:26,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:26,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:17:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:27,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:17:27,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:17:27,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834559284] [2023-11-19 05:17:27,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834559284] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:17:27,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:17:27,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:17:27,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931303067] [2023-11-19 05:17:27,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:17:27,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:17:27,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:17:27,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:17:27,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:17:27,146 INFO L87 Difference]: Start difference. First operand 2730 states and 8103 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:27,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:17:27,306 INFO L93 Difference]: Finished difference Result 2884 states and 8584 transitions. [2023-11-19 05:17:27,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:17:27,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-19 05:17:27,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:17:27,335 INFO L225 Difference]: With dead ends: 2884 [2023-11-19 05:17:27,335 INFO L226 Difference]: Without dead ends: 2884 [2023-11-19 05:17:27,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:17:27,337 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 18 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:17:27,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 46 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:17:27,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2884 states. [2023-11-19 05:17:27,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2884 to 2796. [2023-11-19 05:17:27,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2796 states, 2706 states have (on average 3.073540280857354) internal successors, (8317), 2795 states have internal predecessors, (8317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:27,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2796 states to 2796 states and 8317 transitions. [2023-11-19 05:17:27,456 INFO L78 Accepts]: Start accepts. Automaton has 2796 states and 8317 transitions. Word has length 6 [2023-11-19 05:17:27,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:17:27,457 INFO L495 AbstractCegarLoop]: Abstraction has 2796 states and 8317 transitions. [2023-11-19 05:17:27,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:27,457 INFO L276 IsEmpty]: Start isEmpty. Operand 2796 states and 8317 transitions. [2023-11-19 05:17:27,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 05:17:27,458 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:27,459 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:17:27,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:17:27,459 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-19 05:17:27,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:27,460 INFO L85 PathProgramCache]: Analyzing trace with hash -846656694, now seen corresponding path program 1 times [2023-11-19 05:17:27,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:17:27,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467752680] [2023-11-19 05:17:27,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:27,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:17:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:27,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:17:27,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:17:27,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467752680] [2023-11-19 05:17:27,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467752680] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:17:27,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:17:27,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:17:27,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684450807] [2023-11-19 05:17:27,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:17:27,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:17:27,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:17:27,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:17:27,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:17:27,667 INFO L87 Difference]: Start difference. First operand 2796 states and 8317 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:27,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:17:27,809 INFO L93 Difference]: Finished difference Result 2790 states and 8311 transitions. [2023-11-19 05:17:27,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:17:27,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-19 05:17:27,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:17:27,840 INFO L225 Difference]: With dead ends: 2790 [2023-11-19 05:17:27,841 INFO L226 Difference]: Without dead ends: 2789 [2023-11-19 05:17:27,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:17:27,845 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:17:27,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:17:27,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2789 states. [2023-11-19 05:17:27,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2789 to 2789. [2023-11-19 05:17:27,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2789 states, 2700 states have (on average 3.077777777777778) internal successors, (8310), 2788 states have internal predecessors, (8310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:27,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2789 states to 2789 states and 8310 transitions. [2023-11-19 05:17:27,996 INFO L78 Accepts]: Start accepts. Automaton has 2789 states and 8310 transitions. Word has length 7 [2023-11-19 05:17:27,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:17:27,996 INFO L495 AbstractCegarLoop]: Abstraction has 2789 states and 8310 transitions. [2023-11-19 05:17:27,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:27,998 INFO L276 IsEmpty]: Start isEmpty. Operand 2789 states and 8310 transitions. [2023-11-19 05:17:28,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 05:17:28,001 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:28,001 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:17:28,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:17:28,002 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread_usbErr3ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-19 05:17:28,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:28,003 INFO L85 PathProgramCache]: Analyzing trace with hash 129299242, now seen corresponding path program 1 times [2023-11-19 05:17:28,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:17:28,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552903642] [2023-11-19 05:17:28,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:28,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:17:28,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:28,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:17:28,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:17:28,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552903642] [2023-11-19 05:17:28,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552903642] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:17:28,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:17:28,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:17:28,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099919993] [2023-11-19 05:17:28,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:17:28,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:17:28,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:17:28,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:17:28,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:17:28,104 INFO L87 Difference]: Start difference. First operand 2789 states and 8310 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:28,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:17:28,249 INFO L93 Difference]: Finished difference Result 2943 states and 8791 transitions. [2023-11-19 05:17:28,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:17:28,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-19 05:17:28,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:17:28,277 INFO L225 Difference]: With dead ends: 2943 [2023-11-19 05:17:28,278 INFO L226 Difference]: Without dead ends: 2943 [2023-11-19 05:17:28,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:17:28,281 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 18 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:17:28,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 46 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:17:28,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2943 states. [2023-11-19 05:17:28,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2943 to 2855. [2023-11-19 05:17:28,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2855 states, 2769 states have (on average 3.0783676417479233) internal successors, (8524), 2854 states have internal predecessors, (8524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:28,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 8524 transitions. [2023-11-19 05:17:28,463 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 8524 transitions. Word has length 7 [2023-11-19 05:17:28,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:17:28,463 INFO L495 AbstractCegarLoop]: Abstraction has 2855 states and 8524 transitions. [2023-11-19 05:17:28,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:28,464 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 8524 transitions. [2023-11-19 05:17:28,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 05:17:28,465 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:28,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:17:28,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 05:17:28,465 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_usbErr6ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-19 05:17:28,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:28,466 INFO L85 PathProgramCache]: Analyzing trace with hash 126999724, now seen corresponding path program 1 times [2023-11-19 05:17:28,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:17:28,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369947926] [2023-11-19 05:17:28,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:28,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:17:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:28,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:17:28,592 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:17:28,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369947926] [2023-11-19 05:17:28,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369947926] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:17:28,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:17:28,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:17:28,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423013228] [2023-11-19 05:17:28,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:17:28,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:17:28,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:17:28,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:17:28,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:17:28,595 INFO L87 Difference]: Start difference. First operand 2855 states and 8524 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:28,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:17:28,699 INFO L93 Difference]: Finished difference Result 2866 states and 8578 transitions. [2023-11-19 05:17:28,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:17:28,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-19 05:17:28,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:17:28,734 INFO L225 Difference]: With dead ends: 2866 [2023-11-19 05:17:28,734 INFO L226 Difference]: Without dead ends: 2866 [2023-11-19 05:17:28,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:17:28,737 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 43 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:17:28,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 45 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:17:28,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2866 states. [2023-11-19 05:17:28,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2866 to 2866. [2023-11-19 05:17:28,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2866 states, 2780 states have (on average 3.085611510791367) internal successors, (8578), 2865 states have internal predecessors, (8578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:28,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2866 states to 2866 states and 8578 transitions. [2023-11-19 05:17:28,841 INFO L78 Accepts]: Start accepts. Automaton has 2866 states and 8578 transitions. Word has length 7 [2023-11-19 05:17:28,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:17:28,841 INFO L495 AbstractCegarLoop]: Abstraction has 2866 states and 8578 transitions. [2023-11-19 05:17:28,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:28,842 INFO L276 IsEmpty]: Start isEmpty. Operand 2866 states and 8578 transitions. [2023-11-19 05:17:28,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 05:17:28,848 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:28,848 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:17:28,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 05:17:28,851 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread_usbErr12ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-19 05:17:28,852 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:28,852 INFO L85 PathProgramCache]: Analyzing trace with hash -352728487, now seen corresponding path program 1 times [2023-11-19 05:17:28,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:17:28,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158758814] [2023-11-19 05:17:28,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:28,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:17:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:28,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:17:28,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:17:28,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158758814] [2023-11-19 05:17:28,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158758814] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:17:28,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:17:28,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:17:28,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795220471] [2023-11-19 05:17:28,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:17:28,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:17:28,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:17:28,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:17:28,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:17:28,930 INFO L87 Difference]: Start difference. First operand 2866 states and 8578 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:29,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:17:29,122 INFO L93 Difference]: Finished difference Result 3415 states and 10031 transitions. [2023-11-19 05:17:29,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:17:29,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-19 05:17:29,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:17:29,154 INFO L225 Difference]: With dead ends: 3415 [2023-11-19 05:17:29,154 INFO L226 Difference]: Without dead ends: 3400 [2023-11-19 05:17:29,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:17:29,155 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 47 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:17:29,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 39 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:17:29,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3400 states. [2023-11-19 05:17:29,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3400 to 2824. [2023-11-19 05:17:29,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2824 states, 2758 states have (on average 2.9804205946337925) internal successors, (8220), 2823 states have internal predecessors, (8220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:29,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2824 states to 2824 states and 8220 transitions. [2023-11-19 05:17:29,268 INFO L78 Accepts]: Start accepts. Automaton has 2824 states and 8220 transitions. Word has length 8 [2023-11-19 05:17:29,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:17:29,268 INFO L495 AbstractCegarLoop]: Abstraction has 2824 states and 8220 transitions. [2023-11-19 05:17:29,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:29,268 INFO L276 IsEmpty]: Start isEmpty. Operand 2824 states and 8220 transitions. [2023-11-19 05:17:29,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 05:17:29,270 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:29,270 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:17:29,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 05:17:29,270 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-19 05:17:29,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:29,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1636810747, now seen corresponding path program 1 times [2023-11-19 05:17:29,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:17:29,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522207338] [2023-11-19 05:17:29,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:29,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:17:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:29,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:17:29,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:17:29,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522207338] [2023-11-19 05:17:29,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522207338] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:17:29,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:17:29,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:17:29,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765380195] [2023-11-19 05:17:29,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:17:29,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:17:29,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:17:29,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:17:29,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:17:29,364 INFO L87 Difference]: Start difference. First operand 2824 states and 8220 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:29,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:17:29,519 INFO L93 Difference]: Finished difference Result 2894 states and 8442 transitions. [2023-11-19 05:17:29,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:17:29,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 05:17:29,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:17:29,533 INFO L225 Difference]: With dead ends: 2894 [2023-11-19 05:17:29,533 INFO L226 Difference]: Without dead ends: 2882 [2023-11-19 05:17:29,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:17:29,534 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 38 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:17:29,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 46 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:17:29,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2882 states. [2023-11-19 05:17:29,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2882 to 2882. [2023-11-19 05:17:29,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2882 states, 2829 states have (on average 2.971367974549311) internal successors, (8406), 2881 states have internal predecessors, (8406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:29,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2882 states to 2882 states and 8406 transitions. [2023-11-19 05:17:29,665 INFO L78 Accepts]: Start accepts. Automaton has 2882 states and 8406 transitions. Word has length 9 [2023-11-19 05:17:29,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:17:29,665 INFO L495 AbstractCegarLoop]: Abstraction has 2882 states and 8406 transitions. [2023-11-19 05:17:29,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:29,666 INFO L276 IsEmpty]: Start isEmpty. Operand 2882 states and 8406 transitions. [2023-11-19 05:17:29,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 05:17:29,666 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:29,666 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:17:29,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 05:17:29,667 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-19 05:17:29,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:29,667 INFO L85 PathProgramCache]: Analyzing trace with hash -974471307, now seen corresponding path program 1 times [2023-11-19 05:17:29,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:17:29,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531104339] [2023-11-19 05:17:29,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:29,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:17:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:29,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:17:29,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:17:29,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531104339] [2023-11-19 05:17:29,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531104339] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:17:29,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:17:29,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:17:29,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877059962] [2023-11-19 05:17:29,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:17:29,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:17:29,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:17:29,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:17:29,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:17:29,967 INFO L87 Difference]: Start difference. First operand 2882 states and 8406 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:30,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:17:30,269 INFO L93 Difference]: Finished difference Result 2625 states and 7626 transitions. [2023-11-19 05:17:30,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:17:30,270 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-19 05:17:30,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:17:30,282 INFO L225 Difference]: With dead ends: 2625 [2023-11-19 05:17:30,282 INFO L226 Difference]: Without dead ends: 2611 [2023-11-19 05:17:30,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:17:30,283 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 138 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-19 05:17:30,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 100 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-19 05:17:30,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2023-11-19 05:17:30,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2611. [2023-11-19 05:17:30,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2576 states have (on average 2.950310559006211) internal successors, (7600), 2610 states have internal predecessors, (7600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:30,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 7600 transitions. [2023-11-19 05:17:30,386 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 7600 transitions. Word has length 9 [2023-11-19 05:17:30,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:17:30,386 INFO L495 AbstractCegarLoop]: Abstraction has 2611 states and 7600 transitions. [2023-11-19 05:17:30,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:30,386 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 7600 transitions. [2023-11-19 05:17:30,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 05:17:30,388 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:30,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:17:30,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 05:17:30,389 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)] === [2023-11-19 05:17:30,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:30,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1059867028, now seen corresponding path program 1 times [2023-11-19 05:17:30,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:17:30,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798562760] [2023-11-19 05:17:30,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:30,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:17:30,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:17:30,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:17:30,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:17:30,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798562760] [2023-11-19 05:17:30,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798562760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:17:30,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:17:30,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:17:30,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133077247] [2023-11-19 05:17:30,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:17:30,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:17:30,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:17:30,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:17:30,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:17:30,518 INFO L87 Difference]: Start difference. First operand 2611 states and 7600 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:30,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:17:30,608 INFO L93 Difference]: Finished difference Result 2681 states and 7813 transitions. [2023-11-19 05:17:30,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:17:30,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-19 05:17:30,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:17:30,619 INFO L225 Difference]: With dead ends: 2681 [2023-11-19 05:17:30,619 INFO L226 Difference]: Without dead ends: 2681 [2023-11-19 05:17:30,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:17:30,621 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 15 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:17:30,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 60 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:17:30,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2681 states. [2023-11-19 05:17:30,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2681 to 2680. [2023-11-19 05:17:30,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2680 states, 2645 states have (on average 2.9534971644612478) internal successors, (7812), 2679 states have internal predecessors, (7812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:30,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2680 states to 2680 states and 7812 transitions. [2023-11-19 05:17:30,703 INFO L78 Accepts]: Start accepts. Automaton has 2680 states and 7812 transitions. Word has length 12 [2023-11-19 05:17:30,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:17:30,703 INFO L495 AbstractCegarLoop]: Abstraction has 2680 states and 7812 transitions. [2023-11-19 05:17:30,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:17:30,704 INFO L276 IsEmpty]: Start isEmpty. Operand 2680 states and 7812 transitions. [2023-11-19 05:17:30,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 05:17:30,705 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:17:30,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:17:30,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 05:17:30,706 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2023-11-19 05:17:30,706 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:17:30,706 INFO L85 PathProgramCache]: Analyzing trace with hash 1060048192, now seen corresponding path program 1 times [2023-11-19 05:17:30,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:17:30,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585039252] [2023-11-19 05:17:30,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:17:30,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:17:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:17:30,739 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:17:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:17:30,829 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:17:30,830 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:17:30,830 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (39 of 40 remaining) [2023-11-19 05:17:30,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2023-11-19 05:17:30,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2023-11-19 05:17:30,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2023-11-19 05:17:30,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2023-11-19 05:17:30,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2023-11-19 05:17:30,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (33 of 40 remaining) [2023-11-19 05:17:30,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2023-11-19 05:17:30,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2023-11-19 05:17:30,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2023-11-19 05:17:30,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 40 remaining) [2023-11-19 05:17:30,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2023-11-19 05:17:30,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr11ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2023-11-19 05:17:30,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2023-11-19 05:17:30,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr12ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2023-11-19 05:17:30,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2023-11-19 05:17:30,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2023-11-19 05:17:30,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2023-11-19 05:17:30,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2023-11-19 05:17:30,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2023-11-19 05:17:30,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2023-11-19 05:17:30,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2023-11-19 05:17:30,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2023-11-19 05:17:30,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2023-11-19 05:17:30,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 40 remaining) [2023-11-19 05:17:30,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2023-11-19 05:17:30,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2023-11-19 05:17:30,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr11ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2023-11-19 05:17:30,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2023-11-19 05:17:30,837 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr12ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2023-11-19 05:17:30,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2023-11-19 05:17:30,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2023-11-19 05:17:30,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2023-11-19 05:17:30,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2023-11-19 05:17:30,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2023-11-19 05:17:30,838 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2023-11-19 05:17:30,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2023-11-19 05:17:30,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2023-11-19 05:17:30,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2023-11-19 05:17:30,839 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbThread1of1ForFork1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 40 remaining) [2023-11-19 05:17:30,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 05:17:30,866 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:17:30,874 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 05:17:30,874 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:17:30,947 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre52 could not be translated [2023-11-19 05:17:30,949 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre36 could not be translated [2023-11-19 05:17:30,950 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-11-19 05:17:30,951 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet46 could not be translated [2023-11-19 05:17:30,952 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch43 could not be translated [2023-11-19 05:17:30,952 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet42 could not be translated [2023-11-19 05:17:30,953 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-11-19 05:17:30,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:17:30 BasicIcfg [2023-11-19 05:17:30,967 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:17:30,968 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:17:30,968 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:17:30,968 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:17:30,969 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:17:10" (3/4) ... [2023-11-19 05:17:30,970 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:17:30,971 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:17:30,972 INFO L158 Benchmark]: Toolchain (without parser) took 22918.45ms. Allocated memory was 165.7MB in the beginning and 312.5MB in the end (delta: 146.8MB). Free memory was 129.0MB in the beginning and 206.2MB in the end (delta: -77.2MB). Peak memory consumption was 72.6MB. Max. memory is 16.1GB. [2023-11-19 05:17:30,972 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 119.5MB. Free memory is still 64.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:17:30,974 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1286.40ms. Allocated memory is still 165.7MB. Free memory was 128.9MB in the beginning and 71.5MB in the end (delta: 57.3MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2023-11-19 05:17:30,974 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.92ms. Allocated memory is still 165.7MB. Free memory was 71.5MB in the beginning and 67.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:17:30,975 INFO L158 Benchmark]: Boogie Preprocessor took 54.41ms. Allocated memory is still 165.7MB. Free memory was 67.3MB in the beginning and 63.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:17:30,975 INFO L158 Benchmark]: RCFGBuilder took 865.29ms. Allocated memory is still 165.7MB. Free memory was 63.8MB in the beginning and 104.9MB in the end (delta: -41.0MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2023-11-19 05:17:30,975 INFO L158 Benchmark]: TraceAbstraction took 20624.02ms. Allocated memory was 165.7MB in the beginning and 312.5MB in the end (delta: 146.8MB). Free memory was 104.9MB in the beginning and 207.3MB in the end (delta: -102.4MB). Peak memory consumption was 160.7MB. Max. memory is 16.1GB. [2023-11-19 05:17:30,976 INFO L158 Benchmark]: Witness Printer took 3.54ms. Allocated memory is still 312.5MB. Free memory was 207.3MB in the beginning and 206.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:17:30,978 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 119.5MB. Free memory is still 64.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1286.40ms. Allocated memory is still 165.7MB. Free memory was 128.9MB in the beginning and 71.5MB in the end (delta: 57.3MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.92ms. Allocated memory is still 165.7MB. Free memory was 71.5MB in the beginning and 67.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.41ms. Allocated memory is still 165.7MB. Free memory was 67.3MB in the beginning and 63.8MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 865.29ms. Allocated memory is still 165.7MB. Free memory was 63.8MB in the beginning and 104.9MB in the end (delta: -41.0MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * TraceAbstraction took 20624.02ms. Allocated memory was 165.7MB in the beginning and 312.5MB in the end (delta: 146.8MB). Free memory was 104.9MB in the beginning and 207.3MB in the end (delta: -102.4MB). Peak memory consumption was 160.7MB. Max. memory is 16.1GB. * Witness Printer took 3.54ms. Allocated memory is still 312.5MB. Free memory was 207.3MB in the beginning and 206.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet42 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: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.3s, 481 PlacesBefore, 95 PlacesAfterwards, 523 TransitionsBefore, 107 TransitionsAfterwards, 24066 CoEnabledTransitionPairs, 10 FixpointIterations, 288 TrivialSequentialCompositions, 262 ConcurrentSequentialCompositions, 52 TrivialYvCompositions, 81 ConcurrentYvCompositions, 30 ChoiceCompositions, 713 TotalNumberOfCompositions, 63066 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 37638, independent: 36830, independent conditional: 0, independent unconditional: 36830, dependent: 808, dependent conditional: 0, dependent unconditional: 808, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 18894, independent: 18755, independent conditional: 0, independent unconditional: 18755, dependent: 139, dependent conditional: 0, dependent unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 18894, independent: 18468, independent conditional: 0, independent unconditional: 18468, dependent: 426, dependent conditional: 0, dependent unconditional: 426, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 426, independent: 287, independent conditional: 0, independent unconditional: 287, dependent: 139, dependent conditional: 0, dependent unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 617, independent: 319, independent conditional: 0, independent unconditional: 319, dependent: 297, dependent conditional: 0, dependent unconditional: 297, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 37638, independent: 18075, independent conditional: 0, independent unconditional: 18075, dependent: 669, dependent conditional: 0, dependent unconditional: 669, unknown: 18894, unknown conditional: 0, unknown unconditional: 18894] , Statistics on independence cache: Total cache size (in pairs): 940, Positive cache size: 883, Positive conditional cache size: 0, Positive unconditional cache size: 883, Negative cache size: 57, Negative conditional cache size: 0, Negative unconditional cache size: 57, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 1699]: Data race detected [2023-11-19 05:17:31,007 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre52 could not be translated [2023-11-19 05:17:31,011 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre36 could not be translated [2023-11-19 05:17:31,012 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-11-19 05:17:31,013 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet42 could not be translated [2023-11-19 05:17:31,018 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet46 could not be translated [2023-11-19 05:17:31,018 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch43 could not be translated [2023-11-19 05:17:31,020 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-11-19 05:17:31,040 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre52 could not be translated [2023-11-19 05:17:31,044 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre36 could not be translated [2023-11-19 05:17:31,045 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet32 could not be translated [2023-11-19 05:17:31,045 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch43 could not be translated [2023-11-19 05:17:31,045 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet46 could not be translated [2023-11-19 05:17:31,046 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet42 could not be translated [2023-11-19 05:17:31,046 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; [L1695] 0 pthread_mutex_t mutex; [L1696] 0 int pdev; [L1741] 0 int ldv_usb_state; [L1798] CALL 0 module_init() [L1779] 0 pdev = 1 [L1780] EXPR 0 pdev==1 [L1780] CALL 0 ldv_assert(pdev==1) [L1693] COND FALSE 0 !(!expression) [L1780] RET 0 ldv_assert(pdev==1) [L1781] COND TRUE 0 __VERIFIER_nondet_int() [L1782] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread_usb, ((void *)0)) VAL [ldv_usb_state=0, mutex={5:0}, pdev=1, t1={3:0}, t2={4:0}] [L1743] 1 ldv_usb_state = 0 [L1744] 1 int probe_ret; VAL [arg={0:0}, arg={0:0}, ldv_usb_state=0, mutex={5:0}, pdev=1, t1={3:0}, t2={4:0}] [L1745] COND TRUE 1 1 [L1747] 1 case 0: [L1748] 1 ldv_usb_state==0 [L1748] COND TRUE 1 ldv_usb_state==0 [L1749] CALL, EXPR 1 ath_ahb_probe() [L1730] 1 int error; [L1731] CALL, EXPR 1 ieee80211_register_hw() [L1717] COND TRUE 1 __VERIFIER_nondet_int() [L1718] FCALL, FORK 1 pthread_create(&t2, ((void *)0), thread_ath9k, ((void *)0)) VAL [ldv_usb_state=0, mutex={5:0}, pdev=1, t1={3:0}, t2={4:0}] [L1719] 1 return 0; [L1731] RET, EXPR 1 ieee80211_register_hw() [L1731] 1 error = ieee80211_register_hw() [L1732] COND FALSE 1 !(\read(error)) [L1734] 1 return 0; [L1749] RET, EXPR 1 ath_ahb_probe() [L1704] COND TRUE 2 1 [L1706] 2 case 1: [L1707] CALL 2 ath9k_flush() [L1699] 2 pdev = 6 VAL [ldv_usb_state=0, mutex={5:0}, pdev=6, t1={3:0}, t2={4:0}] [L1749] 1 probe_ret = ath_ahb_probe() [L1750] COND FALSE 1 !(probe_ret!=0) [L1752] 1 ldv_usb_state = 1 [L1753] 1 pdev = 7 VAL [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=7, 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, 524 locations, 40 error locations. Started 1 CEGAR loops. OverallTime: 20.3s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 15.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 317 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 317 mSDsluCounter, 460 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 161 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 866 IncrementalHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 299 mSDtfsCounter, 866 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3229occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 753 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 57 ConstructedInterpolants, 0 QuantifiedInterpolants, 124 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-19 05:17:31,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e8d7159a-8d18-4d6f-b2fb-17ce56f818b9/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE