./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_1-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_1-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 a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 18:46:27,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 18:46:27,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 18:46:27,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 18:46:27,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 18:46:27,987 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 18:46:27,988 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 18:46:27,990 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 18:46:27,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 18:46:27,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 18:46:27,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 18:46:27,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 18:46:27,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 18:46:27,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 18:46:27,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 18:46:28,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 18:46:28,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 18:46:28,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 18:46:28,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 18:46:28,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 18:46:28,009 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 18:46:28,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 18:46:28,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 18:46:28,012 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 18:46:28,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 18:46:28,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 18:46:28,018 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 18:46:28,018 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 18:46:28,019 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 18:46:28,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 18:46:28,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 18:46:28,021 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 18:46:28,022 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 18:46:28,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 18:46:28,023 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 18:46:28,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 18:46:28,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 18:46:28,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 18:46:28,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 18:46:28,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 18:46:28,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 18:46:28,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 18:46:28,027 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 18:46:28,050 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 18:46:28,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 18:46:28,051 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 18:46:28,051 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 18:46:28,051 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 18:46:28,051 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 18:46:28,052 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 18:46:28,052 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 18:46:28,052 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 18:46:28,053 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 18:46:28,053 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 18:46:28,053 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 18:46:28,053 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 18:46:28,053 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 18:46:28,053 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 18:46:28,053 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 18:46:28,054 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 18:46:28,055 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 18:46:28,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 18:46:28,056 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 18:46:28,056 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 18:46:28,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 18:46:28,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 18:46:28,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 18:46:28,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 18:46:28,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 18:46:28,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 18:46:28,057 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 18:46:28,057 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 18:46:28,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 18:46:28,058 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 18:46:28,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 18:46:28,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 18:46:28,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 18:46:28,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:46:28,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 18:46:28,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 18:46:28,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 18:46:28,059 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 18:46:28,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 18:46:28,059 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 18:46:28,059 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 18:46:28,059 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 18:46:28,059 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d [2022-04-18 18:46:28,248 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 18:46:28,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 18:46:28,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 18:46:28,267 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 18:46:28,267 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 18:46:28,268 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2022-04-18 18:46:28,321 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/211247a0a/6f2c129d1bdf4c8a8749f08824bc8f45/FLAG1d56cd2a0 [2022-04-18 18:46:28,748 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 18:46:28,748 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2022-04-18 18:46:28,772 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/211247a0a/6f2c129d1bdf4c8a8749f08824bc8f45/FLAG1d56cd2a0 [2022-04-18 18:46:28,784 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/211247a0a/6f2c129d1bdf4c8a8749f08824bc8f45 [2022-04-18 18:46:28,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 18:46:28,787 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 18:46:28,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 18:46:28,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 18:46:28,792 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 18:46:28,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:46:28" (1/1) ... [2022-04-18 18:46:28,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c357eed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:28, skipping insertion in model container [2022-04-18 18:46:28,794 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:46:28" (1/1) ... [2022-04-18 18:46:28,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 18:46:28,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 18:46:29,456 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_1-thread_local_vars.i[76081,76094] [2022-04-18 18:46:29,494 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:46:29,501 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 18:46:29,537 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_1-thread_local_vars.i[76081,76094] [2022-04-18 18:46:29,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:46:29,638 INFO L208 MainTranslator]: Completed translation [2022-04-18 18:46:29,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:29 WrapperNode [2022-04-18 18:46:29,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 18:46:29,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 18:46:29,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 18:46:29,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 18:46:29,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:29" (1/1) ... [2022-04-18 18:46:29,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:29" (1/1) ... [2022-04-18 18:46:29,709 INFO L137 Inliner]: procedures = 486, calls = 43, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 265 [2022-04-18 18:46:29,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 18:46:29,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 18:46:29,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 18:46:29,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 18:46:29,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:29" (1/1) ... [2022-04-18 18:46:29,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:29" (1/1) ... [2022-04-18 18:46:29,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:29" (1/1) ... [2022-04-18 18:46:29,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:29" (1/1) ... [2022-04-18 18:46:29,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:29" (1/1) ... [2022-04-18 18:46:29,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:29" (1/1) ... [2022-04-18 18:46:29,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:29" (1/1) ... [2022-04-18 18:46:29,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 18:46:29,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 18:46:29,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 18:46:29,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 18:46:29,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:29" (1/1) ... [2022-04-18 18:46:29,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:46:29,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:46:29,815 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 18:46:29,831 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 18:46:29,841 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2022-04-18 18:46:29,842 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2022-04-18 18:46:29,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 18:46:29,842 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 18:46:29,842 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2022-04-18 18:46:29,842 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2022-04-18 18:46:29,842 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 18:46:29,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 18:46:29,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-18 18:46:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 18:46:29,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 18:46:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 18:46:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 18:46:29,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 18:46:29,844 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 18:46:30,008 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 18:46:30,009 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 18:46:30,273 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 18:46:30,285 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 18:46:30,286 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-04-18 18:46:30,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:46:30 BoogieIcfgContainer [2022-04-18 18:46:30,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 18:46:30,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 18:46:30,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 18:46:30,291 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 18:46:30,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:46:28" (1/3) ... [2022-04-18 18:46:30,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d2cca9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:46:30, skipping insertion in model container [2022-04-18 18:46:30,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:46:29" (2/3) ... [2022-04-18 18:46:30,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d2cca9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:46:30, skipping insertion in model container [2022-04-18 18:46:30,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:46:30" (3/3) ... [2022-04-18 18:46:30,293 INFO L111 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2022-04-18 18:46:30,296 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 18:46:30,297 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 18:46:30,297 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-04-18 18:46:30,297 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 18:46:30,357 INFO L135 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-04-18 18:46:30,385 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 18:46:30,389 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 18:46:30,389 INFO L341 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2022-04-18 18:46:30,400 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 18:46:30,408 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 418 places, 448 transitions, 926 flow [2022-04-18 18:46:30,410 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 418 places, 448 transitions, 926 flow [2022-04-18 18:46:30,411 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 418 places, 448 transitions, 926 flow [2022-04-18 18:46:30,527 INFO L129 PetriNetUnfolder]: 33/459 cut-off events. [2022-04-18 18:46:30,528 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-04-18 18:46:30,534 INFO L84 FinitePrefix]: Finished finitePrefix Result has 471 conditions, 459 events. 33/459 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1258 event pairs, 0 based on Foata normal form. 0/391 useless extension candidates. Maximal degree in co-relation 312. Up to 11 conditions per place. [2022-04-18 18:46:30,546 INFO L116 LiptonReduction]: Number of co-enabled transitions 18816 [2022-04-18 18:46:38,491 INFO L131 LiptonReduction]: Checked pairs total: 42322 [2022-04-18 18:46:38,492 INFO L133 LiptonReduction]: Total number of compositions: 549 [2022-04-18 18:46:38,502 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 96 transitions, 222 flow [2022-04-18 18:46:38,595 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2569 states, 2430 states have (on average 3.1613168724279834) internal successors, (7682), 2568 states have internal predecessors, (7682), 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 18:46:38,602 INFO L276 IsEmpty]: Start isEmpty. Operand has 2569 states, 2430 states have (on average 3.1613168724279834) internal successors, (7682), 2568 states have internal predecessors, (7682), 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 18:46:38,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-04-18 18:46:38,606 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:46:38,606 INFO L499 BasicCegarLoop]: trace histogram [1] [2022-04-18 18:46:38,607 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-04-18 18:46:38,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:46:38,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1488, now seen corresponding path program 1 times [2022-04-18 18:46:38,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:46:38,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523600458] [2022-04-18 18:46:38,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:46:38,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:46:38,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:46:38,884 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 18:46:38,885 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:46:38,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523600458] [2022-04-18 18:46:38,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523600458] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:46:38,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:46:38,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-04-18 18:46:38,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77033707] [2022-04-18 18:46:38,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:46:38,891 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-04-18 18:46:38,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:46:38,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-04-18 18:46:38,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-04-18 18:46:38,922 INFO L87 Difference]: Start difference. First operand has 2569 states, 2430 states have (on average 3.1613168724279834) internal successors, (7682), 2568 states have internal predecessors, (7682), 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 18:46:39,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:46:39,027 INFO L93 Difference]: Finished difference Result 2081 states and 6204 transitions. [2022-04-18 18:46:39,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-04-18 18:46:39,029 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 18:46:39,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:46:39,063 INFO L225 Difference]: With dead ends: 2081 [2022-04-18 18:46:39,064 INFO L226 Difference]: Without dead ends: 2070 [2022-04-18 18:46:39,064 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 18:46:39,068 INFO L913 BasicCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 18:46:39,069 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 18:46:39,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2070 states. [2022-04-18 18:46:39,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2070 to 2070. [2022-04-18 18:46:39,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2070 states, 2001 states have (on average 3.0899550224887555) internal successors, (6183), 2069 states have internal predecessors, (6183), 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 18:46:39,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2070 states to 2070 states and 6183 transitions. [2022-04-18 18:46:39,205 INFO L78 Accepts]: Start accepts. Automaton has 2070 states and 6183 transitions. Word has length 1 [2022-04-18 18:46:39,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:46:39,206 INFO L478 AbstractCegarLoop]: Abstraction has 2070 states and 6183 transitions. [2022-04-18 18:46:39,206 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 18:46:39,206 INFO L276 IsEmpty]: Start isEmpty. Operand 2070 states and 6183 transitions. [2022-04-18 18:46:39,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-04-18 18:46:39,207 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:46:39,207 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-04-18 18:46:39,208 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-18 18:46:39,208 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting thread_usbErr9ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-04-18 18:46:39,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:46:39,211 INFO L85 PathProgramCache]: Analyzing trace with hash 500626406, now seen corresponding path program 1 times [2022-04-18 18:46:39,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:46:39,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474441995] [2022-04-18 18:46:39,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:46:39,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:46:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:46:39,360 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 18:46:39,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:46:39,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474441995] [2022-04-18 18:46:39,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474441995] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:46:39,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:46:39,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:46:39,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651575846] [2022-04-18 18:46:39,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:46:39,367 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:46:39,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:46:39,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:46:39,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:46:39,368 INFO L87 Difference]: Start difference. First operand 2070 states and 6183 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 18:46:39,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:46:39,461 INFO L93 Difference]: Finished difference Result 2224 states and 6664 transitions. [2022-04-18 18:46:39,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:46:39,461 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 18:46:39,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:46:39,471 INFO L225 Difference]: With dead ends: 2224 [2022-04-18 18:46:39,471 INFO L226 Difference]: Without dead ends: 2224 [2022-04-18 18:46:39,473 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 18:46:39,474 INFO L913 BasicCegarLoop]: 31 mSDtfsCounter, 19 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:46:39,474 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 44 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:46:39,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2224 states. [2022-04-18 18:46:39,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2224 to 2136. [2022-04-18 18:46:39,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2136 states, 2070 states have (on average 3.0903381642512078) internal successors, (6397), 2135 states have internal predecessors, (6397), 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 18:46:39,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2136 states to 2136 states and 6397 transitions. [2022-04-18 18:46:39,527 INFO L78 Accepts]: Start accepts. Automaton has 2136 states and 6397 transitions. Word has length 6 [2022-04-18 18:46:39,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:46:39,528 INFO L478 AbstractCegarLoop]: Abstraction has 2136 states and 6397 transitions. [2022-04-18 18:46:39,528 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 18:46:39,528 INFO L276 IsEmpty]: Start isEmpty. Operand 2136 states and 6397 transitions. [2022-04-18 18:46:39,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-04-18 18:46:39,529 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:46:39,529 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:46:39,529 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-18 18:46:39,530 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-04-18 18:46:39,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:46:39,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1660631238, now seen corresponding path program 1 times [2022-04-18 18:46:39,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:46:39,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158341918] [2022-04-18 18:46:39,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:46:39,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:46:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:46:39,596 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 18:46:39,596 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:46:39,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158341918] [2022-04-18 18:46:39,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158341918] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:46:39,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:46:39,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 18:46:39,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606717382] [2022-04-18 18:46:39,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:46:39,597 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:46:39,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:46:39,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:46:39,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:46:39,597 INFO L87 Difference]: Start difference. First operand 2136 states and 6397 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 18:46:39,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:46:39,665 INFO L93 Difference]: Finished difference Result 2147 states and 6451 transitions. [2022-04-18 18:46:39,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:46:39,666 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 18:46:39,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:46:39,675 INFO L225 Difference]: With dead ends: 2147 [2022-04-18 18:46:39,675 INFO L226 Difference]: Without dead ends: 2147 [2022-04-18 18:46:39,676 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 18:46:39,678 INFO L913 BasicCegarLoop]: 24 mSDtfsCounter, 43 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 18:46:39,680 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 40 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 18:46:39,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2147 states. [2022-04-18 18:46:39,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2147 to 2147. [2022-04-18 18:46:39,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2147 states, 2081 states have (on average 3.099951946179721) internal successors, (6451), 2146 states have internal predecessors, (6451), 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 18:46:39,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2147 states to 2147 states and 6451 transitions. [2022-04-18 18:46:39,727 INFO L78 Accepts]: Start accepts. Automaton has 2147 states and 6451 transitions. Word has length 7 [2022-04-18 18:46:39,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:46:39,729 INFO L478 AbstractCegarLoop]: Abstraction has 2147 states and 6451 transitions. [2022-04-18 18:46:39,729 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 18:46:39,729 INFO L276 IsEmpty]: Start isEmpty. Operand 2147 states and 6451 transitions. [2022-04-18 18:46:39,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-04-18 18:46:39,730 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:46:39,731 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:46:39,731 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-18 18:46:39,731 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-04-18 18:46:39,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:46:39,731 INFO L85 PathProgramCache]: Analyzing trace with hash -6007299, now seen corresponding path program 1 times [2022-04-18 18:46:39,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:46:39,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029557500] [2022-04-18 18:46:39,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:46:39,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:46:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:46:39,774 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 18:46:39,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:46:39,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029557500] [2022-04-18 18:46:39,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029557500] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:46:39,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:46:39,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:46:39,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546912451] [2022-04-18 18:46:39,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:46:39,777 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:46:39,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:46:39,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:46:39,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:46:39,779 INFO L87 Difference]: Start difference. First operand 2147 states and 6451 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 18:46:39,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:46:39,840 INFO L93 Difference]: Finished difference Result 2141 states and 6445 transitions. [2022-04-18 18:46:39,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:46:39,840 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 18:46:39,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:46:39,896 INFO L225 Difference]: With dead ends: 2141 [2022-04-18 18:46:39,896 INFO L226 Difference]: Without dead ends: 2140 [2022-04-18 18:46:39,896 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 18:46:39,898 INFO L913 BasicCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 18:46:39,899 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 18:46:39,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2022-04-18 18:46:39,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2022-04-18 18:46:39,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2140 states, 2075 states have (on average 3.105542168674699) internal successors, (6444), 2139 states have internal predecessors, (6444), 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 18:46:39,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 6444 transitions. [2022-04-18 18:46:39,950 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 6444 transitions. Word has length 7 [2022-04-18 18:46:39,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:46:39,950 INFO L478 AbstractCegarLoop]: Abstraction has 2140 states and 6444 transitions. [2022-04-18 18:46:39,951 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 18:46:39,951 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 6444 transitions. [2022-04-18 18:46:39,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-04-18 18:46:39,953 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:46:39,953 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:46:39,953 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-18 18:46:39,953 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting thread_usbErr10ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-04-18 18:46:39,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:46:39,957 INFO L85 PathProgramCache]: Analyzing trace with hash 65669383, now seen corresponding path program 1 times [2022-04-18 18:46:39,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:46:39,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132096179] [2022-04-18 18:46:39,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:46:39,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:46:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:46:40,000 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 18:46:40,001 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:46:40,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132096179] [2022-04-18 18:46:40,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132096179] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:46:40,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:46:40,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:46:40,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738531553] [2022-04-18 18:46:40,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:46:40,002 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:46:40,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:46:40,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:46:40,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:46:40,002 INFO L87 Difference]: Start difference. First operand 2140 states and 6444 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 18:46:40,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:46:40,080 INFO L93 Difference]: Finished difference Result 2117 states and 6255 transitions. [2022-04-18 18:46:40,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:46:40,081 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 18:46:40,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:46:40,089 INFO L225 Difference]: With dead ends: 2117 [2022-04-18 18:46:40,090 INFO L226 Difference]: Without dead ends: 2102 [2022-04-18 18:46:40,090 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 18:46:40,091 INFO L913 BasicCegarLoop]: 24 mSDtfsCounter, 45 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:46:40,091 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 36 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:46:40,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2102 states. [2022-04-18 18:46:40,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2102 to 1988. [2022-04-18 18:46:40,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1988 states, 1943 states have (on average 3.0411734431291815) internal successors, (5909), 1987 states have internal predecessors, (5909), 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 18:46:40,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 5909 transitions. [2022-04-18 18:46:40,129 INFO L78 Accepts]: Start accepts. Automaton has 1988 states and 5909 transitions. Word has length 8 [2022-04-18 18:46:40,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:46:40,130 INFO L478 AbstractCegarLoop]: Abstraction has 1988 states and 5909 transitions. [2022-04-18 18:46:40,130 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 18:46:40,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1988 states and 5909 transitions. [2022-04-18 18:46:40,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-04-18 18:46:40,131 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:46:40,131 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:46:40,131 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-18 18:46:40,131 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting thread_usbThread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-04-18 18:46:40,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:46:40,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1832812949, now seen corresponding path program 1 times [2022-04-18 18:46:40,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:46:40,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853268342] [2022-04-18 18:46:40,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:46:40,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:46:40,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:46:40,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:46:40,166 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:46:40,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853268342] [2022-04-18 18:46:40,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853268342] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:46:40,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:46:40,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 18:46:40,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943739879] [2022-04-18 18:46:40,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:46:40,167 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:46:40,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:46:40,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:46:40,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:46:40,167 INFO L87 Difference]: Start difference. First operand 1988 states and 5909 transitions. Second operand has 3 states, 3 states have (on average 3.0) 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 18:46:40,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:46:40,230 INFO L93 Difference]: Finished difference Result 1812 states and 5168 transitions. [2022-04-18 18:46:40,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:46:40,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) 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 18:46:40,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:46:40,238 INFO L225 Difference]: With dead ends: 1812 [2022-04-18 18:46:40,238 INFO L226 Difference]: Without dead ends: 1812 [2022-04-18 18:46:40,239 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 18:46:40,239 INFO L913 BasicCegarLoop]: 33 mSDtfsCounter, 29 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:46:40,239 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 51 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:46:40,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1812 states. [2022-04-18 18:46:40,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1812 to 1812. [2022-04-18 18:46:40,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1812 states, 1773 states have (on average 2.9148336153412298) internal successors, (5168), 1811 states have internal predecessors, (5168), 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 18:46:40,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1812 states to 1812 states and 5168 transitions. [2022-04-18 18:46:40,276 INFO L78 Accepts]: Start accepts. Automaton has 1812 states and 5168 transitions. Word has length 9 [2022-04-18 18:46:40,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:46:40,276 INFO L478 AbstractCegarLoop]: Abstraction has 1812 states and 5168 transitions. [2022-04-18 18:46:40,276 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) 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 18:46:40,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1812 states and 5168 transitions. [2022-04-18 18:46:40,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-04-18 18:46:40,277 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:46:40,277 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:46:40,277 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-18 18:46:40,278 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-04-18 18:46:40,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:46:40,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1811888002, now seen corresponding path program 1 times [2022-04-18 18:46:40,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:46:40,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012637033] [2022-04-18 18:46:40,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:46:40,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:46:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:46:40,317 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 18:46:40,317 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:46:40,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012637033] [2022-04-18 18:46:40,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012637033] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:46:40,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:46:40,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:46:40,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072394029] [2022-04-18 18:46:40,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:46:40,318 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:46:40,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:46:40,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:46:40,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:46:40,319 INFO L87 Difference]: Start difference. First operand 1812 states and 5168 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 18:46:40,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:46:40,393 INFO L93 Difference]: Finished difference Result 1735 states and 4901 transitions. [2022-04-18 18:46:40,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:46:40,393 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 18:46:40,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:46:40,400 INFO L225 Difference]: With dead ends: 1735 [2022-04-18 18:46:40,400 INFO L226 Difference]: Without dead ends: 1721 [2022-04-18 18:46:40,400 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 18:46:40,401 INFO L913 BasicCegarLoop]: 30 mSDtfsCounter, 31 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:46:40,401 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 42 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:46:40,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1721 states. [2022-04-18 18:46:40,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1721 to 1672. [2022-04-18 18:46:40,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 1646 states have (on average 2.876063183475091) internal successors, (4734), 1671 states have internal predecessors, (4734), 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 18:46:40,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 4734 transitions. [2022-04-18 18:46:40,432 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 4734 transitions. Word has length 9 [2022-04-18 18:46:40,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:46:40,432 INFO L478 AbstractCegarLoop]: Abstraction has 1672 states and 4734 transitions. [2022-04-18 18:46:40,433 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 18:46:40,433 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 4734 transitions. [2022-04-18 18:46:40,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-04-18 18:46:40,433 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:46:40,433 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:46:40,434 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-04-18 18:46:40,434 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-04-18 18:46:40,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:46:40,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1327553276, now seen corresponding path program 1 times [2022-04-18 18:46:40,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:46:40,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107946268] [2022-04-18 18:46:40,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:46:40,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:46:40,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:46:40,471 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-18 18:46:40,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:46:40,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107946268] [2022-04-18 18:46:40,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107946268] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:46:40,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:46:40,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 18:46:40,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180644785] [2022-04-18 18:46:40,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:46:40,472 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:46:40,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:46:40,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:46:40,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:46:40,473 INFO L87 Difference]: Start difference. First operand 1672 states and 4734 transitions. Second operand has 3 states, 3 states have (on average 3.0) 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 18:46:40,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:46:40,519 INFO L93 Difference]: Finished difference Result 1601 states and 4588 transitions. [2022-04-18 18:46:40,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:46:40,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) 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 18:46:40,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:46:40,525 INFO L225 Difference]: With dead ends: 1601 [2022-04-18 18:46:40,525 INFO L226 Difference]: Without dead ends: 1600 [2022-04-18 18:46:40,525 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 18:46:40,526 INFO L913 BasicCegarLoop]: 29 mSDtfsCounter, 10 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 18:46:40,526 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 52 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 18:46:40,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2022-04-18 18:46:40,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1600. [2022-04-18 18:46:40,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1600 states, 1578 states have (on average 2.906210392902408) internal successors, (4586), 1599 states have internal predecessors, (4586), 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 18:46:40,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1600 states to 1600 states and 4586 transitions. [2022-04-18 18:46:40,555 INFO L78 Accepts]: Start accepts. Automaton has 1600 states and 4586 transitions. Word has length 9 [2022-04-18 18:46:40,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:46:40,555 INFO L478 AbstractCegarLoop]: Abstraction has 1600 states and 4586 transitions. [2022-04-18 18:46:40,555 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) 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 18:46:40,556 INFO L276 IsEmpty]: Start isEmpty. Operand 1600 states and 4586 transitions. [2022-04-18 18:46:40,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-04-18 18:46:40,556 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:46:40,556 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:46:40,556 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-04-18 18:46:40,557 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-04-18 18:46:40,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:46:40,557 INFO L85 PathProgramCache]: Analyzing trace with hash -14429440, now seen corresponding path program 1 times [2022-04-18 18:46:40,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:46:40,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629602067] [2022-04-18 18:46:40,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:46:40,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:46:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:46:40,616 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 18:46:40,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:46:40,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629602067] [2022-04-18 18:46:40,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629602067] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:46:40,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:46:40,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 18:46:40,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978695145] [2022-04-18 18:46:40,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:46:40,617 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-18 18:46:40,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:46:40,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-18 18:46:40,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-04-18 18:46:40,618 INFO L87 Difference]: Start difference. First operand 1600 states and 4586 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 18:46:40,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:46:40,772 INFO L93 Difference]: Finished difference Result 1460 states and 4165 transitions. [2022-04-18 18:46:40,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 18:46:40,773 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 18:46:40,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:46:40,777 INFO L225 Difference]: With dead ends: 1460 [2022-04-18 18:46:40,777 INFO L226 Difference]: Without dead ends: 1460 [2022-04-18 18:46:40,777 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 18:46:40,777 INFO L913 BasicCegarLoop]: 46 mSDtfsCounter, 108 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:46:40,777 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 82 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:46:40,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2022-04-18 18:46:40,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 1460. [2022-04-18 18:46:40,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1460 states, 1445 states have (on average 2.8823529411764706) internal successors, (4165), 1459 states have internal predecessors, (4165), 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 18:46:40,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 4165 transitions. [2022-04-18 18:46:40,837 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 4165 transitions. Word has length 9 [2022-04-18 18:46:40,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:46:40,837 INFO L478 AbstractCegarLoop]: Abstraction has 1460 states and 4165 transitions. [2022-04-18 18:46:40,837 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 18:46:40,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 4165 transitions. [2022-04-18 18:46:40,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-18 18:46:40,838 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:46:40,838 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:46:40,838 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-04-18 18:46:40,839 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-04-18 18:46:40,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:46:40,839 INFO L85 PathProgramCache]: Analyzing trace with hash 396728762, now seen corresponding path program 1 times [2022-04-18 18:46:40,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:46:40,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924798005] [2022-04-18 18:46:40,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:46:40,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:46:40,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:46:40,949 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-18 18:46:40,949 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:46:40,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924798005] [2022-04-18 18:46:40,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924798005] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:46:40,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:46:40,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-18 18:46:40,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170608891] [2022-04-18 18:46:40,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:46:40,950 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-18 18:46:40,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:46:40,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-18 18:46:40,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-04-18 18:46:40,951 INFO L87 Difference]: Start difference. First operand 1460 states and 4165 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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 18:46:41,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:46:41,116 INFO L93 Difference]: Finished difference Result 2538 states and 7256 transitions. [2022-04-18 18:46:41,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-18 18:46:41,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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 11 [2022-04-18 18:46:41,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:46:41,123 INFO L225 Difference]: With dead ends: 2538 [2022-04-18 18:46:41,123 INFO L226 Difference]: Without dead ends: 2538 [2022-04-18 18:46:41,123 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 18:46:41,124 INFO L913 BasicCegarLoop]: 40 mSDtfsCounter, 68 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-18 18:46:41,124 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 91 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-18 18:46:41,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2022-04-18 18:46:41,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 1390. [2022-04-18 18:46:41,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1377 states have (on average 2.870007262164125) internal successors, (3952), 1389 states have internal predecessors, (3952), 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 18:46:41,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 3952 transitions. [2022-04-18 18:46:41,154 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 3952 transitions. Word has length 11 [2022-04-18 18:46:41,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:46:41,154 INFO L478 AbstractCegarLoop]: Abstraction has 1390 states and 3952 transitions. [2022-04-18 18:46:41,154 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 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 18:46:41,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 3952 transitions. [2022-04-18 18:46:41,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-18 18:46:41,155 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:46:41,155 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:46:41,155 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-04-18 18:46:41,156 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting thread_usbErr9ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-04-18 18:46:41,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:46:41,156 INFO L85 PathProgramCache]: Analyzing trace with hash 677922553, now seen corresponding path program 1 times [2022-04-18 18:46:41,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:46:41,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598021484] [2022-04-18 18:46:41,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:46:41,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:46:41,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:46:41,189 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 18:46:41,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:46:41,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598021484] [2022-04-18 18:46:41,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598021484] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:46:41,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:46:41,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-18 18:46:41,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65908103] [2022-04-18 18:46:41,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:46:41,190 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:46:41,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:46:41,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:46:41,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:46:41,191 INFO L87 Difference]: Start difference. First operand 1390 states and 3952 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:46:41,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:46:41,229 INFO L93 Difference]: Finished difference Result 670 states and 1946 transitions. [2022-04-18 18:46:41,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:46:41,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-04-18 18:46:41,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:46:41,232 INFO L225 Difference]: With dead ends: 670 [2022-04-18 18:46:41,232 INFO L226 Difference]: Without dead ends: 609 [2022-04-18 18:46:41,232 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 18:46:41,233 INFO L913 BasicCegarLoop]: 26 mSDtfsCounter, 16 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 18:46:41,233 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 43 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 18:46:41,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2022-04-18 18:46:41,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 609. [2022-04-18 18:46:41,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 608 states have (on average 2.8898026315789473) internal successors, (1757), 608 states have internal predecessors, (1757), 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 18:46:41,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 1757 transitions. [2022-04-18 18:46:41,243 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 1757 transitions. Word has length 12 [2022-04-18 18:46:41,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:46:41,243 INFO L478 AbstractCegarLoop]: Abstraction has 609 states and 1757 transitions. [2022-04-18 18:46:41,243 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-18 18:46:41,244 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 1757 transitions. [2022-04-18 18:46:41,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-04-18 18:46:41,245 INFO L491 BasicCegarLoop]: Found error trace [2022-04-18 18:46:41,245 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:46:41,245 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-04-18 18:46:41,245 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-04-18 18:46:41,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-18 18:46:41,246 INFO L85 PathProgramCache]: Analyzing trace with hash 533240421, now seen corresponding path program 1 times [2022-04-18 18:46:41,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-04-18 18:46:41,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429819974] [2022-04-18 18:46:41,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-18 18:46:41,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-18 18:46:41,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-18 18:46:41,280 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 18:46:41,281 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-04-18 18:46:41,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429819974] [2022-04-18 18:46:41,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429819974] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-18 18:46:41,281 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-18 18:46:41,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-04-18 18:46:41,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027374177] [2022-04-18 18:46:41,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-18 18:46:41,282 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-18 18:46:41,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-04-18 18:46:41,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-18 18:46:41,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-18 18:46:41,283 INFO L87 Difference]: Start difference. First operand 609 states and 1757 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 18:46:41,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-18 18:46:41,316 INFO L93 Difference]: Finished difference Result 608 states and 1756 transitions. [2022-04-18 18:46:41,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-18 18:46:41,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2022-04-18 18:46:41,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-18 18:46:41,317 INFO L225 Difference]: With dead ends: 608 [2022-04-18 18:46:41,317 INFO L226 Difference]: Without dead ends: 0 [2022-04-18 18:46:41,317 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 18:46:41,318 INFO L913 BasicCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-18 18:46:41,318 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-18 18:46:41,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-18 18:46:41,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-18 18:46:41,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 18:46:41,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-18 18:46:41,319 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2022-04-18 18:46:41,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-18 18:46:41,319 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-18 18:46:41,319 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 18:46:41,319 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-18 18:46:41,320 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-18 18:46:41,321 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (35 of 36 remaining) [2022-04-18 18:46:41,322 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2022-04-18 18:46:41,322 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2022-04-18 18:46:41,322 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2022-04-18 18:46:41,322 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2022-04-18 18:46:41,322 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2022-04-18 18:46:41,323 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2022-04-18 18:46:41,323 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2022-04-18 18:46:41,323 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2022-04-18 18:46:41,323 INFO L788 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 36 remaining) [2022-04-18 18:46:41,323 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2022-04-18 18:46:41,323 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2022-04-18 18:46:41,323 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2022-04-18 18:46:41,324 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2022-04-18 18:46:41,324 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2022-04-18 18:46:41,324 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2022-04-18 18:46:41,324 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2022-04-18 18:46:41,324 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2022-04-18 18:46:41,324 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2022-04-18 18:46:41,324 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2022-04-18 18:46:41,325 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2022-04-18 18:46:41,325 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 36 remaining) [2022-04-18 18:46:41,325 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2022-04-18 18:46:41,325 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2022-04-18 18:46:41,325 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2022-04-18 18:46:41,325 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2022-04-18 18:46:41,325 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2022-04-18 18:46:41,325 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2022-04-18 18:46:41,326 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2022-04-18 18:46:41,326 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2022-04-18 18:46:41,326 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2022-04-18 18:46:41,326 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2022-04-18 18:46:41,326 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2022-04-18 18:46:41,326 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2022-04-18 18:46:41,326 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2022-04-18 18:46:41,327 INFO L788 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 36 remaining) [2022-04-18 18:46:41,327 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-04-18 18:46:41,328 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-18 18:46:41,331 INFO L227 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-04-18 18:46:41,331 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-18 18:46:41,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 06:46:41 BasicIcfg [2022-04-18 18:46:41,333 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-18 18:46:41,334 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-04-18 18:46:41,334 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-04-18 18:46:41,334 INFO L275 PluginConnector]: Witness Printer initialized [2022-04-18 18:46:41,334 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:46:30" (3/4) ... [2022-04-18 18:46:41,336 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-04-18 18:46:41,340 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_ath9k [2022-04-18 18:46:41,340 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_usb [2022-04-18 18:46:41,343 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-04-18 18:46:41,343 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-04-18 18:46:41,343 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-04-18 18:46:41,343 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-04-18 18:46:41,370 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2022-04-18 18:46:41,371 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-04-18 18:46:41,371 INFO L158 Benchmark]: Toolchain (without parser) took 12584.13ms. Allocated memory was 96.5MB in the beginning and 243.3MB in the end (delta: 146.8MB). Free memory was 65.1MB in the beginning and 70.0MB in the end (delta: -4.9MB). Peak memory consumption was 142.1MB. Max. memory is 16.1GB. [2022-04-18 18:46:41,371 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 96.5MB. Free memory is still 52.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 18:46:41,372 INFO L158 Benchmark]: CACSL2BoogieTranslator took 849.96ms. Allocated memory was 96.5MB in the beginning and 130.0MB in the end (delta: 33.6MB). Free memory was 64.9MB in the beginning and 95.2MB in the end (delta: -30.3MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2022-04-18 18:46:41,372 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.42ms. Allocated memory is still 130.0MB. Free memory was 95.2MB in the beginning and 91.9MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 18:46:41,372 INFO L158 Benchmark]: Boogie Preprocessor took 65.53ms. Allocated memory is still 130.0MB. Free memory was 91.2MB in the beginning and 88.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-04-18 18:46:41,373 INFO L158 Benchmark]: RCFGBuilder took 511.17ms. Allocated memory is still 130.0MB. Free memory was 88.4MB in the beginning and 64.7MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-04-18 18:46:41,373 INFO L158 Benchmark]: TraceAbstraction took 11044.12ms. Allocated memory was 130.0MB in the beginning and 243.3MB in the end (delta: 113.2MB). Free memory was 63.9MB in the beginning and 73.1MB in the end (delta: -9.2MB). Peak memory consumption was 102.6MB. Max. memory is 16.1GB. [2022-04-18 18:46:41,373 INFO L158 Benchmark]: Witness Printer took 37.04ms. Allocated memory is still 243.3MB. Free memory was 73.1MB in the beginning and 70.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-04-18 18:46:41,374 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 96.5MB. Free memory is still 52.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 849.96ms. Allocated memory was 96.5MB in the beginning and 130.0MB in the end (delta: 33.6MB). Free memory was 64.9MB in the beginning and 95.2MB in the end (delta: -30.3MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.42ms. Allocated memory is still 130.0MB. Free memory was 95.2MB in the beginning and 91.9MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.53ms. Allocated memory is still 130.0MB. Free memory was 91.2MB in the beginning and 88.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 511.17ms. Allocated memory is still 130.0MB. Free memory was 88.4MB in the beginning and 64.7MB in the end (delta: 23.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 11044.12ms. Allocated memory was 130.0MB in the beginning and 243.3MB in the end (delta: 113.2MB). Free memory was 63.9MB in the beginning and 73.1MB in the end (delta: -9.2MB). Peak memory consumption was 102.6MB. Max. memory is 16.1GB. * Witness Printer took 37.04ms. Allocated memory is still 243.3MB. Free memory was 73.1MB in the beginning and 70.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.1s, 418 PlacesBefore, 87 PlacesAfterwards, 448 TransitionsBefore, 96 TransitionsAfterwards, 18816 CoEnabledTransitionPairs, 8 FixpointIterations, 238 TrivialSequentialCompositions, 207 ConcurrentSequentialCompositions, 37 TrivialYvCompositions, 46 ConcurrentYvCompositions, 21 ChoiceCompositions, 549 TotalNumberOfCompositions, 42322 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 25147, positive: 24622, positive conditional: 0, positive unconditional: 24622, negative: 525, negative conditional: 0, negative unconditional: 525, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 14089, positive: 13968, positive conditional: 0, positive unconditional: 13968, negative: 121, negative conditional: 0, negative unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 14089, positive: 13888, positive conditional: 0, positive unconditional: 13888, negative: 201, negative conditional: 0, negative unconditional: 201, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 201, positive: 80, positive conditional: 0, positive unconditional: 80, negative: 121, negative conditional: 0, negative unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 260, positive: 93, positive conditional: 0, positive unconditional: 93, negative: 166, negative conditional: 0, negative unconditional: 166, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 25147, positive: 10654, positive conditional: 0, positive unconditional: 10654, negative: 404, negative conditional: 0, negative unconditional: 404, unknown: 14089, unknown conditional: 0, unknown unconditional: 14089] , Statistics on independence cache: Total cache size (in pairs): 768, Positive cache size: 712, Positive conditional cache size: 0, Positive unconditional cache size: 712, Negative cache size: 56, Negative conditional cache size: 0, Negative unconditional cache size: 56 - 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 - PositiveResult [Line: 1699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1777]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1778]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1783]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1784]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1790]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1792]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1793]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1743]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1771]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1748]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1772]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1756]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1764]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1758]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1759]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1760]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 457 locations, 36 error locations. Started 1 CEGAR loops. OverallTime: 10.9s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 369 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 369 mSDsluCounter, 581 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 607 mSDsCounter, 55 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1119 IncrementalHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 55 mSolverCounterUnsat, 347 mSDtfsCounter, 1119 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2569occurred in iteration=0, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 1399 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 212 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 4/4 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 - AllSpecificationsHoldResult: All specifications hold 20 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-18 18:46:41,404 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE