./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