./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_2-thread_local_vars.i --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for data races
Using default analysis
Version efd9311c
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_2-thread_local_vars.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) )

 --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0f799b8cb369af433cd7b4f4a2ae1c7efd2306d185f06da0302d2727c00c6bf0
--- Real Ultimate output ---
This is Ultimate 0.2.2-dev-efd9311-m
[2022-04-18 18:46:44,313 INFO  L177        SettingsManager]: Resetting all preferences to default values...
[2022-04-18 18:46:44,315 INFO  L181        SettingsManager]: Resetting UltimateCore preferences to default values
[2022-04-18 18:46:44,350 INFO  L184        SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2022-04-18 18:46:44,350 INFO  L181        SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2022-04-18 18:46:44,351 INFO  L181        SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2022-04-18 18:46:44,352 INFO  L181        SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2022-04-18 18:46:44,354 INFO  L181        SettingsManager]: Resetting LassoRanker preferences to default values
[2022-04-18 18:46:44,355 INFO  L181        SettingsManager]: Resetting Reaching Definitions preferences to default values
[2022-04-18 18:46:44,358 INFO  L181        SettingsManager]: Resetting SyntaxChecker preferences to default values
[2022-04-18 18:46:44,359 INFO  L181        SettingsManager]: Resetting Sifa preferences to default values
[2022-04-18 18:46:44,361 INFO  L184        SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2022-04-18 18:46:44,361 INFO  L181        SettingsManager]: Resetting LTL2Aut preferences to default values
[2022-04-18 18:46:44,362 INFO  L181        SettingsManager]: Resetting PEA to Boogie preferences to default values
[2022-04-18 18:46:44,363 INFO  L181        SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2022-04-18 18:46:44,365 INFO  L181        SettingsManager]: Resetting ChcToBoogie preferences to default values
[2022-04-18 18:46:44,366 INFO  L181        SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2022-04-18 18:46:44,367 INFO  L181        SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2022-04-18 18:46:44,368 INFO  L181        SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2022-04-18 18:46:44,372 INFO  L181        SettingsManager]: Resetting CodeCheck preferences to default values
[2022-04-18 18:46:44,373 INFO  L181        SettingsManager]: Resetting HornVerifier preferences to default values
[2022-04-18 18:46:44,374 INFO  L181        SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2022-04-18 18:46:44,374 INFO  L181        SettingsManager]: Resetting RCFGBuilder preferences to default values
[2022-04-18 18:46:44,375 INFO  L181        SettingsManager]: Resetting Referee preferences to default values
[2022-04-18 18:46:44,376 INFO  L181        SettingsManager]: Resetting TraceAbstraction preferences to default values
[2022-04-18 18:46:44,381 INFO  L184        SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2022-04-18 18:46:44,381 INFO  L184        SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2022-04-18 18:46:44,381 INFO  L181        SettingsManager]: Resetting TreeAutomizer preferences to default values
[2022-04-18 18:46:44,382 INFO  L181        SettingsManager]: Resetting IcfgToChc preferences to default values
[2022-04-18 18:46:44,382 INFO  L181        SettingsManager]: Resetting IcfgTransformer preferences to default values
[2022-04-18 18:46:44,383 INFO  L184        SettingsManager]: ReqToTest provides no preferences, ignoring...
[2022-04-18 18:46:44,384 INFO  L181        SettingsManager]: Resetting Boogie Printer preferences to default values
[2022-04-18 18:46:44,385 INFO  L181        SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2022-04-18 18:46:44,385 INFO  L181        SettingsManager]: Resetting ReqPrinter preferences to default values
[2022-04-18 18:46:44,386 INFO  L181        SettingsManager]: Resetting Witness Printer preferences to default values
[2022-04-18 18:46:44,386 INFO  L184        SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2022-04-18 18:46:44,386 INFO  L181        SettingsManager]: Resetting CDTParser preferences to default values
[2022-04-18 18:46:44,388 INFO  L184        SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2022-04-18 18:46:44,388 INFO  L184        SettingsManager]: ReqParser provides no preferences, ignoring...
[2022-04-18 18:46:44,388 INFO  L181        SettingsManager]: Resetting SmtParser preferences to default values
[2022-04-18 18:46:44,388 INFO  L181        SettingsManager]: Resetting Witness Parser preferences to default values
[2022-04-18 18:46:44,390 INFO  L188        SettingsManager]: Finished resetting all preferences to default values...
[2022-04-18 18:46:44,390 INFO  L101        SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf
[2022-04-18 18:46:44,414 INFO  L113        SettingsManager]: Loading preferences was successful
[2022-04-18 18:46:44,414 INFO  L115        SettingsManager]: Preferences different from defaults after loading the file:
[2022-04-18 18:46:44,415 INFO  L136        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-04-18 18:46:44,415 INFO  L138        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-04-18 18:46:44,415 INFO  L136        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-04-18 18:46:44,416 INFO  L138        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-04-18 18:46:44,416 INFO  L138        SettingsManager]:  * User list type=DISABLED
[2022-04-18 18:46:44,416 INFO  L136        SettingsManager]: Preferences of Abstract Interpretation differ from their defaults:
[2022-04-18 18:46:44,416 INFO  L138        SettingsManager]:  * Explicit value domain=true
[2022-04-18 18:46:44,417 INFO  L138        SettingsManager]:  * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain
[2022-04-18 18:46:44,417 INFO  L138        SettingsManager]:  * Octagon Domain=false
[2022-04-18 18:46:44,417 INFO  L138        SettingsManager]:  * Abstract domain=CompoundDomain
[2022-04-18 18:46:44,417 INFO  L138        SettingsManager]:  * Check feasibility of abstract posts with an SMT solver=true
[2022-04-18 18:46:44,418 INFO  L138        SettingsManager]:  * Use the RCFG-of-the-future interface=true
[2022-04-18 18:46:44,418 INFO  L138        SettingsManager]:  * Interval Domain=false
[2022-04-18 18:46:44,418 INFO  L136        SettingsManager]: Preferences of Sifa differ from their defaults:
[2022-04-18 18:46:44,418 INFO  L138        SettingsManager]:  * Call Summarizer=TopInputCallSummarizer
[2022-04-18 18:46:44,418 INFO  L138        SettingsManager]:  * Simplification Technique=POLY_PAC
[2022-04-18 18:46:44,420 INFO  L136        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-04-18 18:46:44,420 INFO  L138        SettingsManager]:  * sizeof long=4
[2022-04-18 18:46:44,421 INFO  L138        SettingsManager]:  * Check unreachability of error function in SV-COMP mode=false
[2022-04-18 18:46:44,421 INFO  L138        SettingsManager]:  * Overapproximate operations on floating types=true
[2022-04-18 18:46:44,421 INFO  L138        SettingsManager]:  * sizeof POINTER=4
[2022-04-18 18:46:44,421 INFO  L138        SettingsManager]:  * Check division by zero=IGNORE
[2022-04-18 18:46:44,421 INFO  L138        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2022-04-18 18:46:44,421 INFO  L138        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-04-18 18:46:44,421 INFO  L138        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2022-04-18 18:46:44,422 INFO  L138        SettingsManager]:  * Check absence of data races in concurrent programs=true
[2022-04-18 18:46:44,422 INFO  L138        SettingsManager]:  * sizeof long double=12
[2022-04-18 18:46:44,422 INFO  L138        SettingsManager]:  * Check if freed pointer was valid=false
[2022-04-18 18:46:44,422 INFO  L138        SettingsManager]:  * Use constant arrays=true
[2022-04-18 18:46:44,422 INFO  L138        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2022-04-18 18:46:44,422 INFO  L136        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-04-18 18:46:44,423 INFO  L138        SettingsManager]:  * SMT solver=External_DefaultMode
[2022-04-18 18:46:44,423 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-18 18:46:44,423 INFO  L136        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-04-18 18:46:44,423 INFO  L138        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2022-04-18 18:46:44,423 INFO  L138        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-04-18 18:46:44,423 INFO  L138        SettingsManager]:  * Trace refinement strategy=SIFA_TAIPAN
[2022-04-18 18:46:44,423 INFO  L138        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-04-18 18:46:44,424 INFO  L138        SettingsManager]:  * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-04-18 18:46:44,424 INFO  L138        SettingsManager]:  * Trace refinement exception blacklist=NONE
[2022-04-18 18:46:44,424 INFO  L138        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2022-04-18 18:46:44,424 INFO  L138        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:/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/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 -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> 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
[2022-04-18 18:46:44,606 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2022-04-18 18:46:44,629 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-04-18 18:46:44,631 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-04-18 18:46:44,631 INFO  L271        PluginConnector]: Initializing CDTParser...
[2022-04-18 18:46:44,632 INFO  L275        PluginConnector]: CDTParser initialized
[2022-04-18 18:46:44,633 INFO  L432   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_2-thread_local_vars.i
[2022-04-18 18:46:44,682 INFO  L220              CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e8a729c3d/c76207ac59ee497ca32ff5f3c34d577c/FLAG1a20582ef
[2022-04-18 18:46:45,124 INFO  L306              CDTParser]: Found 1 translation units.
[2022-04-18 18:46:45,124 INFO  L160              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_2-thread_local_vars.i
[2022-04-18 18:46:45,142 INFO  L349              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e8a729c3d/c76207ac59ee497ca32ff5f3c34d577c/FLAG1a20582ef
[2022-04-18 18:46:45,156 INFO  L357              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/e8a729c3d/c76207ac59ee497ca32ff5f3c34d577c
[2022-04-18 18:46:45,158 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-04-18 18:46:45,159 INFO  L131        ToolchainWalker]: Walking toolchain with 6 elements.
[2022-04-18 18:46:45,160 INFO  L113        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2022-04-18 18:46:45,160 INFO  L271        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2022-04-18 18:46:45,162 INFO  L275        PluginConnector]: CACSL2BoogieTranslator initialized
[2022-04-18 18:46:45,163 INFO  L185        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:46:45" (1/1) ...
[2022-04-18 18:46:45,164 INFO  L205        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45766a09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:45, skipping insertion in model container
[2022-04-18 18:46:45,164 INFO  L185        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:46:45" (1/1) ...
[2022-04-18 18:46:45,168 INFO  L145         MainTranslator]: Starting translation in SV-COMP mode 
[2022-04-18 18:46:45,214 INFO  L178         MainTranslator]: Built tables and reachable declarations
[2022-04-18 18:46:45,665 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_2-thread_local_vars.i[76081,76094]
[2022-04-18 18:46:45,716 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-18 18:46:45,723 INFO  L203         MainTranslator]: Completed pre-run
[2022-04-18 18:46:45,769 WARN  L230   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_2-thread_local_vars.i[76081,76094]
[2022-04-18 18:46:45,778 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2022-04-18 18:46:45,858 INFO  L208         MainTranslator]: Completed translation
[2022-04-18 18:46:45,859 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:45 WrapperNode
[2022-04-18 18:46:45,859 INFO  L132        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2022-04-18 18:46:45,860 INFO  L113        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-04-18 18:46:45,860 INFO  L271        PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-04-18 18:46:45,860 INFO  L275        PluginConnector]: Boogie Procedure Inliner initialized
[2022-04-18 18:46:45,865 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:45" (1/1) ...
[2022-04-18 18:46:45,883 INFO  L185        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:45" (1/1) ...
[2022-04-18 18:46:45,906 INFO  L137                Inliner]: procedures = 486, calls = 44, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 279
[2022-04-18 18:46:45,906 INFO  L132        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-04-18 18:46:45,907 INFO  L113        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-04-18 18:46:45,907 INFO  L271        PluginConnector]: Initializing Boogie Preprocessor...
[2022-04-18 18:46:45,907 INFO  L275        PluginConnector]: Boogie Preprocessor initialized
[2022-04-18 18:46:45,913 INFO  L185        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:45" (1/1) ...
[2022-04-18 18:46:45,913 INFO  L185        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:45" (1/1) ...
[2022-04-18 18:46:45,917 INFO  L185        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:45" (1/1) ...
[2022-04-18 18:46:45,917 INFO  L185        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:45" (1/1) ...
[2022-04-18 18:46:45,926 INFO  L185        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:45" (1/1) ...
[2022-04-18 18:46:45,929 INFO  L185        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:45" (1/1) ...
[2022-04-18 18:46:45,932 INFO  L185        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:45" (1/1) ...
[2022-04-18 18:46:45,936 INFO  L132        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-04-18 18:46:45,936 INFO  L113        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-04-18 18:46:45,936 INFO  L271        PluginConnector]: Initializing RCFGBuilder...
[2022-04-18 18:46:45,936 INFO  L275        PluginConnector]: RCFGBuilder initialized
[2022-04-18 18:46:45,944 INFO  L185        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:45" (1/1) ...
[2022-04-18 18:46:45,963 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-04-18 18:46:45,970 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3
[2022-04-18 18:46:45,981 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2022-04-18 18:46:45,986 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2022-04-18 18:46:46,013 INFO  L130     BoogieDeclarations]: Found specification of procedure thread_usb
[2022-04-18 18:46:46,013 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread_usb
[2022-04-18 18:46:46,013 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2022-04-18 18:46:46,013 INFO  L130     BoogieDeclarations]: Found specification of procedure read~int
[2022-04-18 18:46:46,013 INFO  L130     BoogieDeclarations]: Found specification of procedure thread_ath9k
[2022-04-18 18:46:46,014 INFO  L138     BoogieDeclarations]: Found implementation of procedure thread_ath9k
[2022-04-18 18:46:46,014 INFO  L130     BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock
[2022-04-18 18:46:46,014 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2022-04-18 18:46:46,014 INFO  L130     BoogieDeclarations]: Found specification of procedure write~$Pointer$
[2022-04-18 18:46:46,014 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-04-18 18:46:46,014 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-04-18 18:46:46,014 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2022-04-18 18:46:46,015 INFO  L130     BoogieDeclarations]: Found specification of procedure write~int
[2022-04-18 18:46:46,015 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int
[2022-04-18 18:46:46,016 WARN  L208             CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-04-18 18:46:46,218 INFO  L234             CfgBuilder]: Building ICFG
[2022-04-18 18:46:46,219 INFO  L260             CfgBuilder]: Building CFG for each procedure with an implementation
[2022-04-18 18:46:46,560 INFO  L275             CfgBuilder]: Performing block encoding
[2022-04-18 18:46:46,584 INFO  L294             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-04-18 18:46:46,584 INFO  L299             CfgBuilder]: Removed 2 assume(true) statements.
[2022-04-18 18:46:46,586 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:46:46 BoogieIcfgContainer
[2022-04-18 18:46:46,586 INFO  L132        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-04-18 18:46:46,587 INFO  L113        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-04-18 18:46:46,587 INFO  L271        PluginConnector]: Initializing TraceAbstraction...
[2022-04-18 18:46:46,609 INFO  L275        PluginConnector]: TraceAbstraction initialized
[2022-04-18 18:46:46,610 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:46:45" (1/3) ...
[2022-04-18 18:46:46,610 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d9ea2d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:46:46, skipping insertion in model container
[2022-04-18 18:46:46,610 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:45" (2/3) ...
[2022-04-18 18:46:46,611 INFO  L205        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d9ea2d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:46:46, skipping insertion in model container
[2022-04-18 18:46:46,611 INFO  L185        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:46:46" (3/3) ...
[2022-04-18 18:46:46,612 INFO  L111   eAbstractionObserver]: Analyzing ICFG race-4_2-thread_local_vars.i
[2022-04-18 18:46:46,615 WARN  L147   ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-04-18 18:46:46,615 INFO  L202   ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-04-18 18:46:46,615 INFO  L161   ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations.
[2022-04-18 18:46:46,623 INFO  L504   ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-04-18 18:46:46,712 INFO  L135    ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions.
[2022-04-18 18:46:46,738 INFO  L339      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-04-18 18:46:46,741 INFO  L340      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=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP
[2022-04-18 18:46:46,750 INFO  L341      AbstractCegarLoop]: Starting to check reachability of 40 error locations.
[2022-04-18 18:46:46,763 INFO  L116   etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation.
[2022-04-18 18:46:46,772 INFO  L131   etLargeBlockEncoding]: Starting large block encoding on Petri net that has 452 places, 484 transitions, 998 flow
[2022-04-18 18:46:46,774 INFO  L110        LiptonReduction]: Starting Lipton reduction on Petri net that has 452 places, 484 transitions, 998 flow
[2022-04-18 18:46:46,775 INFO  L74            FinitePrefix]: Start finitePrefix. Operand has 452 places, 484 transitions, 998 flow
[2022-04-18 18:46:46,881 INFO  L129       PetriNetUnfolder]: 35/495 cut-off events.
[2022-04-18 18:46:46,885 INFO  L130       PetriNetUnfolder]: For 3/3 co-relation queries the response was YES.
[2022-04-18 18:46:46,894 INFO  L84            FinitePrefix]: Finished finitePrefix Result has 507 conditions, 495 events. 35/495 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1372 event pairs, 0 based on Foata normal form. 0/421 useless extension candidates. Maximal degree in co-relation 348. Up to 11 conditions per place. 
[2022-04-18 18:46:46,905 INFO  L116        LiptonReduction]: Number of co-enabled transitions 21084
[2022-04-18 18:46:55,428 INFO  L131        LiptonReduction]: Checked pairs total: 48272
[2022-04-18 18:46:55,428 INFO  L133        LiptonReduction]: Total number of compositions: 583
[2022-04-18 18:46:55,437 INFO  L111   iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 95 places, 104 transitions, 238 flow
[2022-04-18 18:46:55,529 INFO  L133   iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result  has 3229 states, 3066 states have (on average 3.131767775603392) internal successors, (9602), 3228 states have internal predecessors, (9602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-04-18 18:46:55,537 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 3229 states, 3066 states have (on average 3.131767775603392) internal successors, (9602), 3228 states have internal predecessors, (9602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-04-18 18:46:55,540 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2
[2022-04-18 18:46:55,540 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:46:55,541 INFO  L499         BasicCegarLoop]: trace histogram [1]
[2022-04-18 18:46:55,555 INFO  L403      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] ===
[2022-04-18 18:46:55,559 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:46:55,559 INFO  L85        PathProgramCache]: Analyzing trace with hash 1583, now seen corresponding path program 1 times
[2022-04-18 18:46:55,565 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:46:55,565 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917950112]
[2022-04-18 18:46:55,566 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:46:55,566 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:46:55,662 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 18:46:55,693 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-18 18:46:55,694 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 18:46:55,694 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917950112]
[2022-04-18 18:46:55,695 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917950112] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 18:46:55,695 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 18:46:55,695 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0
[2022-04-18 18:46:55,696 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199509777]
[2022-04-18 18:46:55,696 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 18:46:55,699 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2022-04-18 18:46:55,700 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 18:46:55,712 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2022-04-18 18:46:55,713 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2022-04-18 18:46:55,719 INFO  L87              Difference]: Start difference. First operand  has 3229 states, 3066 states have (on average 3.131767775603392) internal successors, (9602), 3228 states have internal predecessors, (9602), 0 states have call successors, (0), 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)
[2022-04-18 18:46:55,803 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 18:46:55,804 INFO  L93              Difference]: Finished difference Result 2741 states and 8124 transitions.
[2022-04-18 18:46:55,805 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2022-04-18 18:46:55,806 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
[2022-04-18 18:46:55,806 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 18:46:55,830 INFO  L225             Difference]: With dead ends: 2741
[2022-04-18 18:46:55,830 INFO  L226             Difference]: Without dead ends: 2730
[2022-04-18 18:46:55,831 INFO  L912         BasicCegarLoop]: 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
[2022-04-18 18:46:55,833 INFO  L913         BasicCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-18 18:46:55,834 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-18 18:46:55,849 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2730 states.
[2022-04-18 18:46:55,920 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2730 to 2730.
[2022-04-18 18:46:55,925 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)
[2022-04-18 18:46:55,933 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2730 states to 2730 states and 8103 transitions.
[2022-04-18 18:46:55,934 INFO  L78                 Accepts]: Start accepts. Automaton has 2730 states and 8103 transitions. Word has length 1
[2022-04-18 18:46:55,934 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 18:46:55,934 INFO  L478      AbstractCegarLoop]: Abstraction has 2730 states and 8103 transitions.
[2022-04-18 18:46:55,935 INFO  L479      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)
[2022-04-18 18:46:55,935 INFO  L276                IsEmpty]: Start isEmpty. Operand 2730 states and 8103 transitions.
[2022-04-18 18:46:55,935 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2022-04-18 18:46:55,935 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:46:55,935 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2022-04-18 18:46:55,936 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-04-18 18:46:55,936 INFO  L403      AbstractCegarLoop]: === Iteration 2 === Targeting thread_usbErr11ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] ===
[2022-04-18 18:46:55,936 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:46:55,937 INFO  L85        PathProgramCache]: Analyzing trace with hash -927304453, now seen corresponding path program 1 times
[2022-04-18 18:46:55,937 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:46:55,937 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17174235]
[2022-04-18 18:46:55,937 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:46:55,937 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:46:55,981 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 18:46:56,054 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-18 18:46:56,054 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 18:46:56,054 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17174235]
[2022-04-18 18:46:56,054 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17174235] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 18:46:56,055 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 18:46:56,055 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-04-18 18:46:56,055 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792277254]
[2022-04-18 18:46:56,055 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 18:46:56,056 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-18 18:46:56,056 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 18:46:56,056 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-18 18:46:56,057 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 18:46:56,057 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)
[2022-04-18 18:46:56,131 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 18:46:56,131 INFO  L93              Difference]: Finished difference Result 2796 states and 8317 transitions.
[2022-04-18 18:46:56,132 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-04-18 18:46:56,132 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
[2022-04-18 18:46:56,132 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 18:46:56,143 INFO  L225             Difference]: With dead ends: 2796
[2022-04-18 18:46:56,143 INFO  L226             Difference]: Without dead ends: 2796
[2022-04-18 18:46:56,147 INFO  L912         BasicCegarLoop]: 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
[2022-04-18 18:46:56,147 INFO  L913         BasicCegarLoop]: 34 mSDtfsCounter, 18 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-04-18 18:46:56,148 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 47 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-04-18 18:46:56,153 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2796 states.
[2022-04-18 18:46:56,239 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2796 to 2796.
[2022-04-18 18:46:56,243 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)
[2022-04-18 18:46:56,252 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2796 states to 2796 states and 8317 transitions.
[2022-04-18 18:46:56,252 INFO  L78                 Accepts]: Start accepts. Automaton has 2796 states and 8317 transitions. Word has length 6
[2022-04-18 18:46:56,253 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 18:46:56,253 INFO  L478      AbstractCegarLoop]: Abstraction has 2796 states and 8317 transitions.
[2022-04-18 18:46:56,253 INFO  L479      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)
[2022-04-18 18:46:56,253 INFO  L276                IsEmpty]: Start isEmpty. Operand 2796 states and 8317 transitions.
[2022-04-18 18:46:56,254 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-04-18 18:46:56,254 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:46:56,254 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-04-18 18:46:56,255 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2022-04-18 18:46:56,255 INFO  L403      AbstractCegarLoop]: === Iteration 3 === Targeting thread_usbErr6ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] ===
[2022-04-18 18:46:56,255 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:46:56,255 INFO  L85        PathProgramCache]: Analyzing trace with hash 1319695666, now seen corresponding path program 1 times
[2022-04-18 18:46:56,256 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:46:56,256 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118778299]
[2022-04-18 18:46:56,256 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:46:56,256 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:46:56,277 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 18:46:56,311 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-18 18:46:56,312 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 18:46:56,312 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118778299]
[2022-04-18 18:46:56,312 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118778299] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 18:46:56,313 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 18:46:56,313 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-04-18 18:46:56,313 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377961728]
[2022-04-18 18:46:56,313 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 18:46:56,313 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-18 18:46:56,314 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 18:46:56,314 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-18 18:46:56,314 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 18:46:56,314 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), 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)
[2022-04-18 18:46:56,378 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 18:46:56,378 INFO  L93              Difference]: Finished difference Result 2807 states and 8371 transitions.
[2022-04-18 18:46:56,378 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-04-18 18:46:56,379 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
[2022-04-18 18:46:56,379 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 18:46:56,391 INFO  L225             Difference]: With dead ends: 2807
[2022-04-18 18:46:56,392 INFO  L226             Difference]: Without dead ends: 2807
[2022-04-18 18:46:56,392 INFO  L912         BasicCegarLoop]: 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
[2022-04-18 18:46:56,393 INFO  L913         BasicCegarLoop]: 26 mSDtfsCounter, 43 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-18 18:46:56,393 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 45 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-18 18:46:56,398 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2807 states.
[2022-04-18 18:46:56,434 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2807 to 2807.
[2022-04-18 18:46:56,439 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2807 states, 2717 states have (on average 3.080971659919028) internal successors, (8371), 2806 states have internal predecessors, (8371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-04-18 18:46:56,447 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2807 states to 2807 states and 8371 transitions.
[2022-04-18 18:46:56,448 INFO  L78                 Accepts]: Start accepts. Automaton has 2807 states and 8371 transitions. Word has length 7
[2022-04-18 18:46:56,448 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 18:46:56,448 INFO  L478      AbstractCegarLoop]: Abstraction has 2807 states and 8371 transitions.
[2022-04-18 18:46:56,448 INFO  L479      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)
[2022-04-18 18:46:56,448 INFO  L276                IsEmpty]: Start isEmpty. Operand 2807 states and 8371 transitions.
[2022-04-18 18:46:56,449 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-04-18 18:46:56,449 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:46:56,449 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-04-18 18:46:56,449 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2022-04-18 18:46:56,450 INFO  L403      AbstractCegarLoop]: === Iteration 4 === Targeting thread_usbErr3ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] ===
[2022-04-18 18:46:56,450 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:46:56,450 INFO  L85        PathProgramCache]: Analyzing trace with hash 1320856348, now seen corresponding path program 1 times
[2022-04-18 18:46:56,450 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:46:56,450 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353012319]
[2022-04-18 18:46:56,451 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:46:56,451 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:46:56,464 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 18:46:56,490 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-18 18:46:56,491 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 18:46:56,491 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353012319]
[2022-04-18 18:46:56,491 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353012319] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 18:46:56,491 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 18:46:56,491 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-04-18 18:46:56,491 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430438065]
[2022-04-18 18:46:56,491 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 18:46:56,492 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-18 18:46:56,492 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 18:46:56,492 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-18 18:46:56,493 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 18:46:56,493 INFO  L87              Difference]: Start difference. First operand 2807 states and 8371 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)
[2022-04-18 18:46:56,601 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 18:46:56,602 INFO  L93              Difference]: Finished difference Result 2769 states and 8365 transitions.
[2022-04-18 18:46:56,602 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-04-18 18:46:56,602 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
[2022-04-18 18:46:56,602 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 18:46:56,613 INFO  L225             Difference]: With dead ends: 2769
[2022-04-18 18:46:56,613 INFO  L226             Difference]: Without dead ends: 2769
[2022-04-18 18:46:56,613 INFO  L912         BasicCegarLoop]: 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
[2022-04-18 18:46:56,614 INFO  L913         BasicCegarLoop]: 36 mSDtfsCounter, 20 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-18 18:46:56,614 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 62 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-18 18:46:56,618 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2769 states.
[2022-04-18 18:46:56,649 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 2769.
[2022-04-18 18:46:56,653 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2769 states, 2689 states have (on average 3.1108218668650056) internal successors, (8365), 2768 states have internal predecessors, (8365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-04-18 18:46:56,660 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 8365 transitions.
[2022-04-18 18:46:56,661 INFO  L78                 Accepts]: Start accepts. Automaton has 2769 states and 8365 transitions. Word has length 7
[2022-04-18 18:46:56,661 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 18:46:56,661 INFO  L478      AbstractCegarLoop]: Abstraction has 2769 states and 8365 transitions.
[2022-04-18 18:46:56,662 INFO  L479      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)
[2022-04-18 18:46:56,662 INFO  L276                IsEmpty]: Start isEmpty. Operand 2769 states and 8365 transitions.
[2022-04-18 18:46:56,662 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2022-04-18 18:46:56,662 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:46:56,662 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2022-04-18 18:46:56,663 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2022-04-18 18:46:56,663 INFO  L403      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] ===
[2022-04-18 18:46:56,663 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:46:56,663 INFO  L85        PathProgramCache]: Analyzing trace with hash 227707849, now seen corresponding path program 1 times
[2022-04-18 18:46:56,664 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:46:56,664 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556852329]
[2022-04-18 18:46:56,664 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:46:56,664 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:46:56,675 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 18:46:56,688 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-18 18:46:56,688 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 18:46:56,688 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556852329]
[2022-04-18 18:46:56,688 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556852329] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 18:46:56,689 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 18:46:56,689 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-04-18 18:46:56,689 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80157290]
[2022-04-18 18:46:56,689 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 18:46:56,689 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-18 18:46:56,689 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 18:46:56,690 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-18 18:46:56,690 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 18:46:56,690 INFO  L87              Difference]: Start difference. First operand 2769 states and 8365 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)
[2022-04-18 18:46:56,741 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 18:46:56,742 INFO  L93              Difference]: Finished difference Result 2763 states and 8359 transitions.
[2022-04-18 18:46:56,742 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-04-18 18:46:56,742 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
[2022-04-18 18:46:56,743 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 18:46:56,754 INFO  L225             Difference]: With dead ends: 2763
[2022-04-18 18:46:56,754 INFO  L226             Difference]: Without dead ends: 2762
[2022-04-18 18:46:56,755 INFO  L912         BasicCegarLoop]: 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
[2022-04-18 18:46:56,755 INFO  L913         BasicCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time
[2022-04-18 18:46:56,755 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2022-04-18 18:46:56,760 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2762 states.
[2022-04-18 18:46:56,842 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2762 to 2762.
[2022-04-18 18:46:56,846 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2762 states, 2683 states have (on average 3.1151695862840105) internal successors, (8358), 2761 states have internal predecessors, (8358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-04-18 18:46:56,853 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2762 states to 2762 states and 8358 transitions.
[2022-04-18 18:46:56,857 INFO  L78                 Accepts]: Start accepts. Automaton has 2762 states and 8358 transitions. Word has length 7
[2022-04-18 18:46:56,857 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 18:46:56,857 INFO  L478      AbstractCegarLoop]: Abstraction has 2762 states and 8358 transitions.
[2022-04-18 18:46:56,857 INFO  L479      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)
[2022-04-18 18:46:56,858 INFO  L276                IsEmpty]: Start isEmpty. Operand 2762 states and 8358 transitions.
[2022-04-18 18:46:56,871 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2022-04-18 18:46:56,871 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:46:56,871 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-18 18:46:56,872 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2022-04-18 18:46:56,872 INFO  L403      AbstractCegarLoop]: === Iteration 6 === Targeting thread_usbErr12ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] ===
[2022-04-18 18:46:56,872 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:46:56,872 INFO  L85        PathProgramCache]: Analyzing trace with hash -2081124466, now seen corresponding path program 1 times
[2022-04-18 18:46:56,872 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:46:56,873 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919096612]
[2022-04-18 18:46:56,873 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:46:56,873 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:46:56,884 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 18:46:56,928 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-18 18:46:56,928 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 18:46:56,929 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919096612]
[2022-04-18 18:46:56,929 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919096612] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 18:46:56,929 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 18:46:56,929 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-04-18 18:46:56,929 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068834781]
[2022-04-18 18:46:56,929 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 18:46:56,930 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-18 18:46:56,930 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 18:46:56,930 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-18 18:46:56,930 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 18:46:56,930 INFO  L87              Difference]: Start difference. First operand 2762 states and 8358 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)
[2022-04-18 18:46:57,025 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 18:46:57,025 INFO  L93              Difference]: Finished difference Result 3344 states and 9874 transitions.
[2022-04-18 18:46:57,025 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-04-18 18:46:57,025 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
[2022-04-18 18:46:57,026 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 18:46:57,036 INFO  L225             Difference]: With dead ends: 3344
[2022-04-18 18:46:57,051 INFO  L226             Difference]: Without dead ends: 3327
[2022-04-18 18:46:57,051 INFO  L912         BasicCegarLoop]: 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
[2022-04-18 18:46:57,052 INFO  L913         BasicCegarLoop]: 30 mSDtfsCounter, 48 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-04-18 18:46:57,052 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 42 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-04-18 18:46:57,057 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 3327 states.
[2022-04-18 18:46:57,119 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 3327 to 2751.
[2022-04-18 18:46:57,122 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2751 states, 2686 states have (on average 3.0081906180193596) internal successors, (8080), 2750 states have internal predecessors, (8080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-04-18 18:46:57,192 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2751 states to 2751 states and 8080 transitions.
[2022-04-18 18:46:57,192 INFO  L78                 Accepts]: Start accepts. Automaton has 2751 states and 8080 transitions. Word has length 8
[2022-04-18 18:46:57,192 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 18:46:57,192 INFO  L478      AbstractCegarLoop]: Abstraction has 2751 states and 8080 transitions.
[2022-04-18 18:46:57,192 INFO  L479      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)
[2022-04-18 18:46:57,193 INFO  L276                IsEmpty]: Start isEmpty. Operand 2751 states and 8080 transitions.
[2022-04-18 18:46:57,193 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2022-04-18 18:46:57,193 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:46:57,193 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-18 18:46:57,193 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2022-04-18 18:46:57,194 INFO  L403      AbstractCegarLoop]: === Iteration 7 === Targeting thread_usbErr3ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] ===
[2022-04-18 18:46:57,194 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:46:57,194 INFO  L85        PathProgramCache]: Analyzing trace with hash 941895950, now seen corresponding path program 1 times
[2022-04-18 18:46:57,194 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:46:57,194 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138792741]
[2022-04-18 18:46:57,194 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:46:57,194 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:46:57,210 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 18:46:57,227 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-18 18:46:57,228 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 18:46:57,228 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138792741]
[2022-04-18 18:46:57,228 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138792741] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 18:46:57,228 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 18:46:57,228 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-04-18 18:46:57,228 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046211376]
[2022-04-18 18:46:57,228 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 18:46:57,229 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-18 18:46:57,229 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 18:46:57,229 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-18 18:46:57,229 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 18:46:57,230 INFO  L87              Difference]: Start difference. First operand 2751 states and 8080 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)
[2022-04-18 18:46:57,295 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 18:46:57,296 INFO  L93              Difference]: Finished difference Result 2784 states and 8187 transitions.
[2022-04-18 18:46:57,296 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-04-18 18:46:57,296 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
[2022-04-18 18:46:57,296 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 18:46:57,302 INFO  L225             Difference]: With dead ends: 2784
[2022-04-18 18:46:57,303 INFO  L226             Difference]: Without dead ends: 2784
[2022-04-18 18:46:57,303 INFO  L912         BasicCegarLoop]: 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
[2022-04-18 18:46:57,303 INFO  L913         BasicCegarLoop]: 33 mSDtfsCounter, 18 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-04-18 18:46:57,304 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 46 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-04-18 18:46:57,307 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2784 states.
[2022-04-18 18:46:57,335 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 2784.
[2022-04-18 18:46:57,379 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2784 states, 2722 states have (on average 3.0077149155033065) internal successors, (8187), 2783 states have internal predecessors, (8187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-04-18 18:46:57,394 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2784 states to 2784 states and 8187 transitions.
[2022-04-18 18:46:57,394 INFO  L78                 Accepts]: Start accepts. Automaton has 2784 states and 8187 transitions. Word has length 9
[2022-04-18 18:46:57,394 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 18:46:57,395 INFO  L478      AbstractCegarLoop]: Abstraction has 2784 states and 8187 transitions.
[2022-04-18 18:46:57,395 INFO  L479      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)
[2022-04-18 18:46:57,395 INFO  L276                IsEmpty]: Start isEmpty. Operand 2784 states and 8187 transitions.
[2022-04-18 18:46:57,396 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2022-04-18 18:46:57,407 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:46:57,407 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-18 18:46:57,407 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2022-04-18 18:46:57,408 INFO  L403      AbstractCegarLoop]: === Iteration 8 === Targeting thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] ===
[2022-04-18 18:46:57,408 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:46:57,408 INFO  L85        PathProgramCache]: Analyzing trace with hash 922015062, now seen corresponding path program 1 times
[2022-04-18 18:46:57,408 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:46:57,408 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127036754]
[2022-04-18 18:46:57,409 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:46:57,409 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:46:57,427 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 18:46:57,466 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-18 18:46:57,478 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 18:46:57,478 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127036754]
[2022-04-18 18:46:57,479 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127036754] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 18:46:57,479 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 18:46:57,479 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2022-04-18 18:46:57,479 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116427839]
[2022-04-18 18:46:57,479 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 18:46:57,480 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-04-18 18:46:57,480 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 18:46:57,480 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-04-18 18:46:57,481 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-04-18 18:46:57,481 INFO  L87              Difference]: Start difference. First operand 2784 states and 8187 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)
[2022-04-18 18:46:57,649 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 18:46:57,649 INFO  L93              Difference]: Finished difference Result 2821 states and 8291 transitions.
[2022-04-18 18:46:57,649 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2022-04-18 18:46:57,649 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
[2022-04-18 18:46:57,650 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 18:46:57,657 INFO  L225             Difference]: With dead ends: 2821
[2022-04-18 18:46:57,658 INFO  L226             Difference]: Without dead ends: 2809
[2022-04-18 18:46:57,658 INFO  L912         BasicCegarLoop]: 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
[2022-04-18 18:46:57,659 INFO  L913         BasicCegarLoop]: 36 mSDtfsCounter, 38 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2022-04-18 18:46:57,659 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 49 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2022-04-18 18:46:57,664 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2809 states.
[2022-04-18 18:46:57,726 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2809 to 2809.
[2022-04-18 18:46:57,731 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2809 states, 2760 states have (on average 2.9909420289855073) internal successors, (8255), 2808 states have internal predecessors, (8255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-04-18 18:46:57,743 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2809 states to 2809 states and 8255 transitions.
[2022-04-18 18:46:57,743 INFO  L78                 Accepts]: Start accepts. Automaton has 2809 states and 8255 transitions. Word has length 9
[2022-04-18 18:46:57,744 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 18:46:57,744 INFO  L478      AbstractCegarLoop]: Abstraction has 2809 states and 8255 transitions.
[2022-04-18 18:46:57,744 INFO  L479      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)
[2022-04-18 18:46:57,744 INFO  L276                IsEmpty]: Start isEmpty. Operand 2809 states and 8255 transitions.
[2022-04-18 18:46:57,745 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2022-04-18 18:46:57,745 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:46:57,745 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-18 18:46:57,746 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2022-04-18 18:46:57,746 INFO  L403      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] ===
[2022-04-18 18:46:57,746 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:46:57,746 INFO  L85        PathProgramCache]: Analyzing trace with hash -1705596359, now seen corresponding path program 1 times
[2022-04-18 18:46:57,747 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:46:57,747 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56574925]
[2022-04-18 18:46:57,747 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:46:57,747 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:46:57,768 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-04-18 18:46:57,819 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-04-18 18:46:57,820 INFO  L136   FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace
[2022-04-18 18:46:57,820 INFO  L333   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56574925]
[2022-04-18 18:46:57,820 INFO  L157   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56574925] provided 1 perfect and 0 imperfect interpolant sequences
[2022-04-18 18:46:57,820 INFO  L184   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-04-18 18:46:57,820 INFO  L197   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2022-04-18 18:46:57,821 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061490829]
[2022-04-18 18:46:57,821 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-04-18 18:46:57,821 INFO  L554      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2022-04-18 18:46:57,821 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN
[2022-04-18 18:46:57,821 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2022-04-18 18:46:57,822 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2022-04-18 18:46:57,822 INFO  L87              Difference]: Start difference. First operand 2809 states and 8255 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)
[2022-04-18 18:46:58,053 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2022-04-18 18:46:58,054 INFO  L93              Difference]: Finished difference Result 2559 states and 7490 transitions.
[2022-04-18 18:46:58,054 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2022-04-18 18:46:58,054 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
[2022-04-18 18:46:58,054 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2022-04-18 18:46:58,087 INFO  L225             Difference]: With dead ends: 2559
[2022-04-18 18:46:58,087 INFO  L226             Difference]: Without dead ends: 2559
[2022-04-18 18:46:58,087 INFO  L912         BasicCegarLoop]: 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
[2022-04-18 18:46:58,088 INFO  L913         BasicCegarLoop]: 61 mSDtfsCounter, 129 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2022-04-18 18:46:58,088 INFO  L914         BasicCegarLoop]: SdHoareTripleChecker [129 Valid, 113 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2022-04-18 18:46:58,092 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 2559 states.
[2022-04-18 18:46:58,120 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 2559.
[2022-04-18 18:46:58,123 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 2559 states, 2526 states have (on average 2.965162311955661) internal successors, (7490), 2558 states have internal predecessors, (7490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2022-04-18 18:46:58,129 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 2559 states to 2559 states and 7490 transitions.
[2022-04-18 18:46:58,129 INFO  L78                 Accepts]: Start accepts. Automaton has 2559 states and 7490 transitions. Word has length 9
[2022-04-18 18:46:58,129 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2022-04-18 18:46:58,130 INFO  L478      AbstractCegarLoop]: Abstraction has 2559 states and 7490 transitions.
[2022-04-18 18:46:58,130 INFO  L479      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)
[2022-04-18 18:46:58,130 INFO  L276                IsEmpty]: Start isEmpty. Operand 2559 states and 7490 transitions.
[2022-04-18 18:46:58,130 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2022-04-18 18:46:58,131 INFO  L491         BasicCegarLoop]: Found error trace
[2022-04-18 18:46:58,131 INFO  L499         BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-18 18:46:58,131 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2022-04-18 18:46:58,131 INFO  L403      AbstractCegarLoop]: === Iteration 10 === Targeting thread_usbErr3ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 37 more)] ===
[2022-04-18 18:46:58,131 INFO  L144       PredicateUnifier]: Initialized classic predicate unifier
[2022-04-18 18:46:58,132 INFO  L85        PathProgramCache]: Analyzing trace with hash 997116036, now seen corresponding path program 1 times
[2022-04-18 18:46:58,132 INFO  L118   FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN
[2022-04-18 18:46:58,132 INFO  L333   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421667648]
[2022-04-18 18:46:58,132 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-04-18 18:46:58,132 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-04-18 18:46:58,150 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-18 18:46:58,150 INFO  L352             TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2022-04-18 18:46:58,161 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is sat
[2022-04-18 18:46:58,177 INFO  L130   FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace
[2022-04-18 18:46:58,177 INFO  L618         BasicCegarLoop]: Counterexample is feasible
[2022-04-18 18:46:58,178 INFO  L788   garLoopResultBuilder]: Registering result UNSAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (39 of 40 remaining)
[2022-04-18 18:46:58,179 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining)
[2022-04-18 18:46:58,180 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining)
[2022-04-18 18:46:58,180 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining)
[2022-04-18 18:46:58,180 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining)
[2022-04-18 18:46:58,180 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining)
[2022-04-18 18:46:58,180 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (33 of 40 remaining)
[2022-04-18 18:46:58,180 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining)
[2022-04-18 18:46:58,180 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining)
[2022-04-18 18:46:58,181 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining)
[2022-04-18 18:46:58,181 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 40 remaining)
[2022-04-18 18:46:58,181 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining)
[2022-04-18 18:46:58,181 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr11ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining)
[2022-04-18 18:46:58,181 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining)
[2022-04-18 18:46:58,181 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr12ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining)
[2022-04-18 18:46:58,181 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining)
[2022-04-18 18:46:58,182 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining)
[2022-04-18 18:46:58,182 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining)
[2022-04-18 18:46:58,182 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining)
[2022-04-18 18:46:58,182 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining)
[2022-04-18 18:46:58,182 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining)
[2022-04-18 18:46:58,182 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining)
[2022-04-18 18:46:58,182 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining)
[2022-04-18 18:46:58,183 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining)
[2022-04-18 18:46:58,183 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 40 remaining)
[2022-04-18 18:46:58,183 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining)
[2022-04-18 18:46:58,183 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining)
[2022-04-18 18:46:58,183 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining)
[2022-04-18 18:46:58,183 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr11ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining)
[2022-04-18 18:46:58,184 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining)
[2022-04-18 18:46:58,184 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr12ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining)
[2022-04-18 18:46:58,184 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining)
[2022-04-18 18:46:58,184 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining)
[2022-04-18 18:46:58,184 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining)
[2022-04-18 18:46:58,184 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining)
[2022-04-18 18:46:58,184 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining)
[2022-04-18 18:46:58,185 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining)
[2022-04-18 18:46:58,185 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining)
[2022-04-18 18:46:58,185 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining)
[2022-04-18 18:46:58,185 INFO  L788   garLoopResultBuilder]: Registering result UNKNOWN for location thread_usbThread1of1ForFork1Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 40 remaining)
[2022-04-18 18:46:58,185 WARN  L460      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2022-04-18 18:46:58,187 INFO  L719         BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2022-04-18 18:46:58,190 INFO  L227   ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2022-04-18 18:46:58,190 INFO  L177   ceAbstractionStarter]: Computing trace abstraction results
[2022-04-18 18:46:58,212 INFO  L202        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 06:46:58 BasicIcfg
[2022-04-18 18:46:58,212 INFO  L132        PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-04-18 18:46:58,213 INFO  L113        PluginConnector]: ------------------------Witness Printer----------------------------
[2022-04-18 18:46:58,213 INFO  L271        PluginConnector]: Initializing Witness Printer...
[2022-04-18 18:46:58,213 INFO  L275        PluginConnector]: Witness Printer initialized
[2022-04-18 18:46:58,213 INFO  L185        PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:46:46" (3/4) ...
[2022-04-18 18:46:58,215 INFO  L140         WitnessPrinter]: No result that supports witness generation found
[2022-04-18 18:46:58,215 INFO  L132        PluginConnector]: ------------------------ END Witness Printer----------------------------
[2022-04-18 18:46:58,215 INFO  L158              Benchmark]: Toolchain (without parser) took 13056.47ms. Allocated memory was 92.3MB in the beginning and 379.6MB in the end (delta: 287.3MB). Free memory was 56.7MB in the beginning and 249.5MB in the end (delta: -192.8MB). Peak memory consumption was 94.4MB. Max. memory is 16.1GB.
[2022-04-18 18:46:58,215 INFO  L158              Benchmark]: CDTParser took 0.16ms. Allocated memory is still 92.3MB. Free memory is still 45.8MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-04-18 18:46:58,216 INFO  L158              Benchmark]: CACSL2BoogieTranslator took 699.42ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 56.5MB in the beginning and 77.7MB in the end (delta: -21.2MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB.
[2022-04-18 18:46:58,216 INFO  L158              Benchmark]: Boogie Procedure Inliner took 46.82ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 73.7MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
[2022-04-18 18:46:58,216 INFO  L158              Benchmark]: Boogie Preprocessor took 28.59ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 71.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2022-04-18 18:46:58,216 INFO  L158              Benchmark]: RCFGBuilder took 649.84ms. Allocated memory is still 117.4MB. Free memory was 71.1MB in the beginning and 81.8MB in the end (delta: -10.7MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB.
[2022-04-18 18:46:58,216 INFO  L158              Benchmark]: TraceAbstraction took 11625.14ms. Allocated memory was 117.4MB in the beginning and 379.6MB in the end (delta: 262.1MB). Free memory was 81.2MB in the beginning and 250.5MB in the end (delta: -169.3MB). Peak memory consumption was 94.7MB. Max. memory is 16.1GB.
[2022-04-18 18:46:58,217 INFO  L158              Benchmark]: Witness Printer took 2.29ms. Allocated memory is still 379.6MB. Free memory is still 249.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2022-04-18 18:46:58,217 INFO  L339   ainManager$Toolchain]: #######################  End [Toolchain 1] #######################
 --- Results ---
 * Results from de.uni_freiburg.informatik.ultimate.core:
  - StatisticsResult: Toolchain Benchmarks
    Benchmark results are:
 * CDTParser took 0.16ms. Allocated memory is still 92.3MB. Free memory is still 45.8MB. There was no memory consumed. Max. memory is 16.1GB.
 * CACSL2BoogieTranslator took 699.42ms. Allocated memory was 92.3MB in the beginning and 117.4MB in the end (delta: 25.2MB). Free memory was 56.5MB in the beginning and 77.7MB in the end (delta: -21.2MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB.
 * Boogie Procedure Inliner took 46.82ms. Allocated memory is still 117.4MB. Free memory was 77.7MB in the beginning and 73.7MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB.
 * Boogie Preprocessor took 28.59ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 71.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
 * RCFGBuilder took 649.84ms. Allocated memory is still 117.4MB. Free memory was 71.1MB in the beginning and 81.8MB in the end (delta: -10.7MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB.
 * TraceAbstraction took 11625.14ms. Allocated memory was 117.4MB in the beginning and 379.6MB in the end (delta: 262.1MB). Free memory was 81.2MB in the beginning and 250.5MB in the end (delta: -169.3MB). Peak memory consumption was 94.7MB. Max. memory is 16.1GB.
 * Witness Printer took 2.29ms. Allocated memory is still 379.6MB. Free memory is still 249.5MB. There was no memory consumed. Max. memory is 16.1GB.
 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator:
  - 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: 8.7s, 452 PlacesBefore, 95 PlacesAfterwards, 484 TransitionsBefore, 104 TransitionsAfterwards, 21084 CoEnabledTransitionPairs, 8 FixpointIterations, 270 TrivialSequentialCompositions, 211 ConcurrentSequentialCompositions, 25 TrivialYvCompositions, 54 ConcurrentYvCompositions, 23 ChoiceCompositions, 583 TotalNumberOfCompositions, 48272 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 31014, positive: 30358, positive conditional: 0, positive unconditional: 30358, negative: 656, negative conditional: 0, negative unconditional: 656, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 15789, positive: 15644, positive conditional: 0, positive unconditional: 15644, negative: 145, negative conditional: 0, negative unconditional: 145, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 15789, positive: 15554, positive conditional: 0, positive unconditional: 15554, negative: 235, negative conditional: 0, negative unconditional: 235, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 235, positive: 90, positive conditional: 0, positive unconditional: 90, negative: 145, negative conditional: 0, negative unconditional: 145, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 242, positive: 87, positive conditional: 0, positive unconditional: 87, negative: 154, negative conditional: 0, negative unconditional: 154, unknown: 0, unknown conditional: 0, unknown unconditional: 0]  ], Cache Queries: [ total: 31014, positive: 14714, positive conditional: 0, positive unconditional: 14714, negative: 511, negative conditional: 0, negative unconditional: 511, unknown: 15789, unknown conditional: 0, unknown unconditional: 15789] , Statistics on independence cache: Total cache size (in pairs): 1043, Positive cache size: 978, Positive conditional cache size: 0, Positive unconditional cache size: 978, Negative cache size: 65, Negative conditional cache size: 0, Negative unconditional cache size: 65
  - 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: 1753]: Data race detected
    Data race detected
The following path leads to a data race: 
[L1694]               0  pthread_t t1, t2;
[L1695]               0  pthread_mutex_t mutex;
[L1696]               0  int pdev;
[L1741]               0  int ldv_usb_state;
[L1798]  CALL         0  module_init()
[L1779]               0  pdev = 1
[L1780]  EXPR         0  pdev==1
[L1780]  CALL         0  ldv_assert(pdev==1)
[L1693]  COND FALSE   0  !(!expression)
[L1780]  RET          0  ldv_assert(pdev==1)
[L1781]  COND TRUE    0  __VERIFIER_nondet_int()
[L1782]  FCALL, FORK  0  pthread_create(&t1, ((void *)0), thread_usb, ((void *)0))
         VAL             [ldv_usb_state=0, mutex={5:0}, pdev=1, pthread_create(&t1, ((void *)0), thread_usb, ((void *)0))=-1, t1={3:0}, t2={4:0}]
[L1743]               1  ldv_usb_state = 0
[L1744]               1  int probe_ret;
         VAL             [arg={0:0}, arg={0:0}, ldv_usb_state=0, mutex={5:0}, pdev=1, t1={3:0}, t2={4:0}]
[L1745]  COND TRUE    1  1
[L1747]               1  case 0:
[L1748]               1  ldv_usb_state==0
[L1748]  COND TRUE    1  ldv_usb_state==0
[L1749]  CALL, EXPR   1  ath_ahb_probe()
[L1730]               1  int error;
[L1731]  CALL, EXPR   1  ieee80211_register_hw()
[L1717]  COND TRUE    1  __VERIFIER_nondet_int()
[L1718]  FCALL, FORK  1  pthread_create(&t2, ((void *)0), thread_ath9k, ((void *)0))
         VAL             [ldv_usb_state=0, mutex={5:0}, pdev=1, pthread_create(&t2, ((void *)0), thread_ath9k, ((void *)0))=0, t1={3:0}, t2={4:0}]
[L1719]               1  return 0;
[L1731]  RET, EXPR    1  ieee80211_register_hw()
[L1731]               1  error = ieee80211_register_hw()
[L1732]  COND FALSE   1  !(\read(error))
[L1734]               1  return 0;
[L1749]  RET, EXPR    1  ath_ahb_probe()
[L1749]               1  probe_ret = ath_ahb_probe()
[L1750]  COND FALSE   1  !(probe_ret!=0)
[L1752]               1  ldv_usb_state = 1
[L1753]               1  pdev = 7
         VAL             [__VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, ldv_usb_state=1, mutex={5:0}, pdev=7, pdev = 7=1154, probe_ret=0, t1={3:0}, t2={4:0}]
[L1704]  COND TRUE    2  1
[L1706]               2  case 1:
[L1707]  CALL         2  ath9k_flush()
[L1699]               2  pdev = 6
         VAL             [ldv_usb_state=1, mutex={5:0}, pdev=6, pdev = 6=1152, t1={3:0}, t2={4:0}]
[L1753]               1  pdev = 7
         VAL             [__VERIFIER_nondet_int()=0, arg={0:0}, arg={0:0}, ldv_usb_state=1, mutex={5:0}, pdev=6, pdev = 7=1154, probe_ret=0, t1={3:0}, t2={4:0}]

Now there is a data race on ~pdev~0 between 
	C: pdev = 6 [1699]
and
	C: pdev = 7 [1753]

  - UnprovableResult [Line: 1699]: Unable to prove that there are no data races
    Unable to prove that there are no data races
 Reason: Not analyzed. 
  - UnprovableResult [Line: 1700]: Unable to prove that there are no data races
    Unable to prove that there are no data races
 Reason: Not analyzed. 
  - UnprovableResult [Line: 1779]: Unable to prove that there are no data races
    Unable to prove that there are no data races
 Reason: Not analyzed. 
  - UnprovableResult [Line: 1780]: Unable to prove that there are no data races
    Unable to prove that there are no data races
 Reason: Not analyzed. 
  - UnprovableResult [Line: 1785]: Unable to prove that there are no data races
    Unable to prove that there are no data races
 Reason: Not analyzed. 
  - UnprovableResult [Line: 1786]: Unable to prove that there are no data races
    Unable to prove that there are no data races
 Reason: Not analyzed. 
  - UnprovableResult [Line: 1792]: Unable to prove that there are no data races
    Unable to prove that there are no data races
 Reason: Not analyzed. 
  - UnprovableResult [Line: 1794]: Unable to prove that there are no data races
    Unable to prove that there are no data races
 Reason: Not analyzed. 
  - UnprovableResult [Line: 1795]: Unable to prove that there are no data races
    Unable to prove that there are no data races
 Reason: Not analyzed. 
  - UnprovableResult [Line: 1782]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
    Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
 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: 1752]: 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: 1762]: Unable to prove that there are no data races
    Unable to prove that there are no data races
 Reason: Not analyzed. 
  - UnprovableResult [Line: 1754]: Unable to prove that there are no data races
    Unable to prove that there are no data races
 Reason: Not analyzed. 
  - UnprovableResult [Line: 1718]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
    Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
 Reason: Not analyzed. 
  - UnprovableResult [Line: 1718]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
    Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users)
 Reason: Not analyzed. 
  - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
    CFG has 5 procedures, 491 locations, 40 error locations. Started 1 CEGAR loops. OverallTime: 11.5s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.8s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 314 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 314 mSDsluCounter, 482 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 435 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 899 IncrementalHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 308 mSDtfsCounter, 899 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: 0.8s AutomataMinimizationTime, 9 MinimizatonAttempts, 576 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 117 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 could not prove your program: unable to determine feasibility of some traces
[2022-04-18 18:46:58,276 INFO  L540       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/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