./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52e313f-a863-4fc7-aa19-ad14fbd25072/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52e313f-a863-4fc7-aa19-ad14fbd25072/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52e313f-a863-4fc7-aa19-ad14fbd25072/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52e313f-a863-4fc7-aa19-ad14fbd25072/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52e313f-a863-4fc7-aa19-ad14fbd25072/bin/utaipan-I9t0OCRTmS/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52e313f-a863-4fc7-aa19-ad14fbd25072/bin/utaipan-I9t0OCRTmS --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:56:06,634 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:56:06,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:56:06,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:56:06,678 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:56:06,679 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:56:06,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:56:06,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:56:06,684 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:56:06,685 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:56:06,686 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:56:06,687 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:56:06,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:56:06,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:56:06,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:56:06,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:56:06,692 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:56:06,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:56:06,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:56:06,698 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:56:06,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:56:06,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:56:06,703 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:56:06,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:56:06,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:56:06,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:56:06,709 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:56:06,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:56:06,711 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:56:06,712 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:56:06,712 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:56:06,713 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:56:06,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:56:06,715 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:56:06,716 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:56:06,717 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:56:06,717 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:56:06,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:56:06,718 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:56:06,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:56:06,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:56:06,721 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52e313f-a863-4fc7-aa19-ad14fbd25072/bin/utaipan-I9t0OCRTmS/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-19 07:56:06,749 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:56:06,750 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:56:06,750 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:56:06,750 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:56:06,751 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:56:06,751 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:56:06,752 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:56:06,752 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:56:06,752 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:56:06,753 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:56:06,753 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:56:06,753 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:56:06,753 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:56:06,754 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:56:06,754 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:56:06,754 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:56:06,755 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:56:06,755 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:56:06,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:56:06,756 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:56:06,756 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:56:06,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:56:06,757 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:56:06,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:56:06,757 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:56:06,757 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:56:06,758 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:56:06,758 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-19 07:56:06,758 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:56:06,758 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:56:06,759 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:56:06,759 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:56:06,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:56:06,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:56:06,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:56:06,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:56:06,760 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:56:06,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:56:06,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:56:06,761 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:56:06,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:56:06,761 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:56:06,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:56:06,762 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52e313f-a863-4fc7-aa19-ad14fbd25072/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52e313f-a863-4fc7-aa19-ad14fbd25072/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d [2022-11-19 07:56:07,033 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:56:07,061 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:56:07,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:56:07,065 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:56:07,066 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:56:07,067 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52e313f-a863-4fc7-aa19-ad14fbd25072/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2022-11-19 07:56:07,145 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52e313f-a863-4fc7-aa19-ad14fbd25072/bin/utaipan-I9t0OCRTmS/data/8f554aa15/c48c8aeb94f54c4798667e9e816140a7/FLAG223fead6b [2022-11-19 07:56:07,809 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:56:07,810 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52e313f-a863-4fc7-aa19-ad14fbd25072/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2022-11-19 07:56:07,837 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52e313f-a863-4fc7-aa19-ad14fbd25072/bin/utaipan-I9t0OCRTmS/data/8f554aa15/c48c8aeb94f54c4798667e9e816140a7/FLAG223fead6b [2022-11-19 07:56:08,099 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52e313f-a863-4fc7-aa19-ad14fbd25072/bin/utaipan-I9t0OCRTmS/data/8f554aa15/c48c8aeb94f54c4798667e9e816140a7 [2022-11-19 07:56:08,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:56:08,104 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:56:08,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:56:08,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:56:08,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:56:08,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:08" (1/1) ... [2022-11-19 07:56:08,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78dc7383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:08, skipping insertion in model container [2022-11-19 07:56:08,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:56:08" (1/1) ... [2022-11-19 07:56:08,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:56:08,207 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:56:09,207 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52e313f-a863-4fc7-aa19-ad14fbd25072/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2022-11-19 07:56:09,255 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:56:09,266 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:56:09,325 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52e313f-a863-4fc7-aa19-ad14fbd25072/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2022-11-19 07:56:09,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:56:09,521 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:56:09,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09 WrapperNode [2022-11-19 07:56:09,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:56:09,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:56:09,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:56:09,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:56:09,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09" (1/1) ... [2022-11-19 07:56:09,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09" (1/1) ... [2022-11-19 07:56:09,591 INFO L138 Inliner]: procedures = 486, calls = 43, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 265 [2022-11-19 07:56:09,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:56:09,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:56:09,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:56:09,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:56:09,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09" (1/1) ... [2022-11-19 07:56:09,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09" (1/1) ... [2022-11-19 07:56:09,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09" (1/1) ... [2022-11-19 07:56:09,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09" (1/1) ... [2022-11-19 07:56:09,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09" (1/1) ... [2022-11-19 07:56:09,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09" (1/1) ... [2022-11-19 07:56:09,633 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09" (1/1) ... [2022-11-19 07:56:09,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09" (1/1) ... [2022-11-19 07:56:09,641 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:56:09,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:56:09,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:56:09,643 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:56:09,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09" (1/1) ... [2022-11-19 07:56:09,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:56:09,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52e313f-a863-4fc7-aa19-ad14fbd25072/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:56:09,689 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52e313f-a863-4fc7-aa19-ad14fbd25072/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:56:09,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52e313f-a863-4fc7-aa19-ad14fbd25072/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:56:09,739 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2022-11-19 07:56:09,739 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2022-11-19 07:56:09,739 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:56:09,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:56:09,740 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2022-11-19 07:56:09,740 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2022-11-19 07:56:09,740 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-19 07:56:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:56:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:56:09,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:56:09,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:56:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:56:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:56:09,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:56:09,744 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-19 07:56:10,108 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:56:10,110 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:56:10,584 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:56:10,595 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:56:10,595 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 07:56:10,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:10 BoogieIcfgContainer [2022-11-19 07:56:10,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:56:10,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:56:10,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:56:10,604 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:56:10,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:56:08" (1/3) ... [2022-11-19 07:56:10,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678c67d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:10, skipping insertion in model container [2022-11-19 07:56:10,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:56:09" (2/3) ... [2022-11-19 07:56:10,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678c67d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:56:10, skipping insertion in model container [2022-11-19 07:56:10,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:10" (3/3) ... [2022-11-19 07:56:10,607 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2022-11-19 07:56:10,616 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-19 07:56:10,627 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:56:10,627 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-11-19 07:56:10,627 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-19 07:56:10,719 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-11-19 07:56:10,776 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-19 07:56:10,802 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 418 places, 448 transitions, 926 flow [2022-11-19 07:56:10,813 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 418 places, 448 transitions, 926 flow [2022-11-19 07:56:10,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 418 places, 448 transitions, 926 flow [2022-11-19 07:56:11,011 INFO L130 PetriNetUnfolder]: 33/459 cut-off events. [2022-11-19 07:56:11,011 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-19 07:56:11,024 INFO L83 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 1272 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. [2022-11-19 07:56:11,042 INFO L119 LiptonReduction]: Number of co-enabled transitions 18816 [2022-11-19 07:56:25,866 INFO L134 LiptonReduction]: Checked pairs total: 43331 [2022-11-19 07:56:25,867 INFO L136 LiptonReduction]: Total number of compositions: 538 [2022-11-19 07:56:25,881 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 87 places, 97 transitions, 224 flow [2022-11-19 07:56:26,037 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2569 states, 2430 states have (on average 3.2065843621399175) internal successors, (7792), 2568 states have internal predecessors, (7792), 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) [2022-11-19 07:56:26,058 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:56:26,064 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3a0af761, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:56:26,064 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2022-11-19 07:56:26,073 INFO L276 IsEmpty]: Start isEmpty. Operand has 2569 states, 2430 states have (on average 3.2065843621399175) internal successors, (7792), 2568 states have internal predecessors, (7792), 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) [2022-11-19 07:56:26,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-19 07:56:26,079 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:56:26,080 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-19 07:56:26,080 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-19 07:56:26,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:56:26,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1464, now seen corresponding path program 1 times [2022-11-19 07:56:26,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:56:26,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302467265] [2022-11-19 07:56:26,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:56:26,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:56:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:56:26,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:56:26,413 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:56:26,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302467265] [2022-11-19 07:56:26,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302467265] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:56:26,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:56:26,416 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-19 07:56:26,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71811241] [2022-11-19 07:56:26,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:56:26,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:56:26,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:56:26,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:56:26,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:56:26,459 INFO L87 Difference]: Start difference. First operand has 2569 states, 2430 states have (on average 3.2065843621399175) internal successors, (7792), 2568 states have internal predecessors, (7792), 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) [2022-11-19 07:56:26,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:56:26,630 INFO L93 Difference]: Finished difference Result 2081 states and 6204 transitions. [2022-11-19 07:56:26,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:56:26,633 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 [2022-11-19 07:56:26,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:56:26,662 INFO L225 Difference]: With dead ends: 2081 [2022-11-19 07:56:26,663 INFO L226 Difference]: Without dead ends: 2070 [2022-11-19 07:56:26,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:56:26,667 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:56:26,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:56:26,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2070 states. [2022-11-19 07:56:26,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2070 to 2070. [2022-11-19 07:56:26,818 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) [2022-11-19 07:56:26,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2070 states to 2070 states and 6183 transitions. [2022-11-19 07:56:26,831 INFO L78 Accepts]: Start accepts. Automaton has 2070 states and 6183 transitions. Word has length 1 [2022-11-19 07:56:26,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:56:26,831 INFO L495 AbstractCegarLoop]: Abstraction has 2070 states and 6183 transitions. [2022-11-19 07:56:26,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:56:26,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2070 states and 6183 transitions. [2022-11-19 07:56:26,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-19 07:56:26,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:56:26,833 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-19 07:56:26,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:56:26,834 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread_usbErr9ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-19 07:56:26,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:56:26,834 INFO L85 PathProgramCache]: Analyzing trace with hash 358806676, now seen corresponding path program 1 times [2022-11-19 07:56:26,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:56:26,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738108650] [2022-11-19 07:56:26,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:56:26,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:56:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:56:27,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:56:27,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:56:27,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738108650] [2022-11-19 07:56:27,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738108650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:56:27,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:56:27,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:56:27,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198797204] [2022-11-19 07:56:27,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:56:27,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:56:27,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:56:27,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:56:27,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:56:27,023 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) [2022-11-19 07:56:27,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:56:27,151 INFO L93 Difference]: Finished difference Result 2224 states and 6664 transitions. [2022-11-19 07:56:27,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:56:27,152 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 [2022-11-19 07:56:27,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:56:27,165 INFO L225 Difference]: With dead ends: 2224 [2022-11-19 07:56:27,166 INFO L226 Difference]: Without dead ends: 2224 [2022-11-19 07:56:27,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:56:27,167 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 19 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:56:27,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 43 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:56:27,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2224 states. [2022-11-19 07:56:27,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2224 to 2136. [2022-11-19 07:56:27,229 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) [2022-11-19 07:56:27,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2136 states to 2136 states and 6397 transitions. [2022-11-19 07:56:27,241 INFO L78 Accepts]: Start accepts. Automaton has 2136 states and 6397 transitions. Word has length 6 [2022-11-19 07:56:27,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:56:27,242 INFO L495 AbstractCegarLoop]: Abstraction has 2136 states and 6397 transitions. [2022-11-19 07:56:27,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:56:27,243 INFO L276 IsEmpty]: Start isEmpty. Operand 2136 states and 6397 transitions. [2022-11-19 07:56:27,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 07:56:27,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:56:27,244 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:56:27,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:56:27,244 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-19 07:56:27,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:56:27,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1760849353, now seen corresponding path program 1 times [2022-11-19 07:56:27,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:56:27,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768857005] [2022-11-19 07:56:27,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:56:27,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:56:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:56:27,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:56:27,329 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:56:27,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768857005] [2022-11-19 07:56:27,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768857005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:56:27,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:56:27,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:56:27,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313313414] [2022-11-19 07:56:27,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:56:27,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:56:27,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:56:27,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:56:27,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:56:27,331 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) [2022-11-19 07:56:27,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:56:27,473 INFO L93 Difference]: Finished difference Result 2147 states and 6451 transitions. [2022-11-19 07:56:27,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:56:27,474 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 [2022-11-19 07:56:27,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:56:27,486 INFO L225 Difference]: With dead ends: 2147 [2022-11-19 07:56:27,486 INFO L226 Difference]: Without dead ends: 2147 [2022-11-19 07:56:27,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:56:27,491 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 43 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:56:27,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 38 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:56:27,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2147 states. [2022-11-19 07:56:27,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2147 to 2147. [2022-11-19 07:56:27,574 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) [2022-11-19 07:56:27,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2147 states to 2147 states and 6451 transitions. [2022-11-19 07:56:27,587 INFO L78 Accepts]: Start accepts. Automaton has 2147 states and 6451 transitions. Word has length 7 [2022-11-19 07:56:27,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:56:27,589 INFO L495 AbstractCegarLoop]: Abstraction has 2147 states and 6451 transitions. [2022-11-19 07:56:27,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:56:27,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2147 states and 6451 transitions. [2022-11-19 07:56:27,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 07:56:27,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:56:27,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:56:27,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:56:27,593 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-19 07:56:27,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:56:27,594 INFO L85 PathProgramCache]: Analyzing trace with hash 2084750424, now seen corresponding path program 1 times [2022-11-19 07:56:27,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:56:27,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547665083] [2022-11-19 07:56:27,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:56:27,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:56:27,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:56:27,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:56:27,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:56:27,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547665083] [2022-11-19 07:56:27,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547665083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:56:27,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:56:27,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:56:27,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743833025] [2022-11-19 07:56:27,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:56:27,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:56:27,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:56:27,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:56:27,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:56:27,748 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) [2022-11-19 07:56:27,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:56:27,874 INFO L93 Difference]: Finished difference Result 2141 states and 6445 transitions. [2022-11-19 07:56:27,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:56:27,875 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 [2022-11-19 07:56:27,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:56:27,888 INFO L225 Difference]: With dead ends: 2141 [2022-11-19 07:56:27,888 INFO L226 Difference]: Without dead ends: 2140 [2022-11-19 07:56:27,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:56:27,890 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:56:27,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:56:27,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2022-11-19 07:56:27,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2022-11-19 07:56:27,953 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) [2022-11-19 07:56:27,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 6444 transitions. [2022-11-19 07:56:27,964 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 6444 transitions. Word has length 7 [2022-11-19 07:56:27,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:56:27,965 INFO L495 AbstractCegarLoop]: Abstraction has 2140 states and 6444 transitions. [2022-11-19 07:56:27,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:56:27,965 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 6444 transitions. [2022-11-19 07:56:27,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 07:56:27,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:56:27,966 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:56:27,967 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:56:27,967 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_usbErr10ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-19 07:56:27,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:56:27,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1215863441, now seen corresponding path program 1 times [2022-11-19 07:56:27,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:56:27,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008316364] [2022-11-19 07:56:27,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:56:27,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:56:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:56:28,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:56:28,025 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:56:28,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008316364] [2022-11-19 07:56:28,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008316364] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:56:28,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:56:28,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:56:28,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543109942] [2022-11-19 07:56:28,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:56:28,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:56:28,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:56:28,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:56:28,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:56:28,028 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) [2022-11-19 07:56:28,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:56:28,164 INFO L93 Difference]: Finished difference Result 2117 states and 6255 transitions. [2022-11-19 07:56:28,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:56:28,165 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 [2022-11-19 07:56:28,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:56:28,177 INFO L225 Difference]: With dead ends: 2117 [2022-11-19 07:56:28,177 INFO L226 Difference]: Without dead ends: 2102 [2022-11-19 07:56:28,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:56:28,178 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 45 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-11-19 07:56:28,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 36 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:56:28,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2102 states. [2022-11-19 07:56:28,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2102 to 1988. [2022-11-19 07:56:28,264 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) [2022-11-19 07:56:28,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1988 states to 1988 states and 5909 transitions. [2022-11-19 07:56:28,273 INFO L78 Accepts]: Start accepts. Automaton has 1988 states and 5909 transitions. Word has length 8 [2022-11-19 07:56:28,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:56:28,273 INFO L495 AbstractCegarLoop]: Abstraction has 1988 states and 5909 transitions. [2022-11-19 07:56:28,274 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:56:28,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1988 states and 5909 transitions. [2022-11-19 07:56:28,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 07:56:28,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:56:28,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:56:28,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:56:28,277 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-19 07:56:28,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:56:28,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1623444980, now seen corresponding path program 1 times [2022-11-19 07:56:28,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:56:28,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804304258] [2022-11-19 07:56:28,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:56:28,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:56:28,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:56:28,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:56:28,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:56:28,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804304258] [2022-11-19 07:56:28,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804304258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:56:28,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:56:28,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:56:28,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961213300] [2022-11-19 07:56:28,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:56:28,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:56:28,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:56:28,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:56:28,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:56:28,336 INFO L87 Difference]: Start difference. First operand 1988 states and 5909 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) [2022-11-19 07:56:28,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:56:28,475 INFO L93 Difference]: Finished difference Result 1838 states and 5425 transitions. [2022-11-19 07:56:28,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:56:28,476 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 [2022-11-19 07:56:28,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:56:28,486 INFO L225 Difference]: With dead ends: 1838 [2022-11-19 07:56:28,486 INFO L226 Difference]: Without dead ends: 1826 [2022-11-19 07:56:28,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:56:28,487 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 34 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:56:28,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 45 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:56:28,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1826 states. [2022-11-19 07:56:28,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1826 to 1826. [2022-11-19 07:56:28,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1826 states, 1797 states have (on average 2.9988870339454645) internal successors, (5389), 1825 states have internal predecessors, (5389), 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) [2022-11-19 07:56:28,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1826 states to 1826 states and 5389 transitions. [2022-11-19 07:56:28,542 INFO L78 Accepts]: Start accepts. Automaton has 1826 states and 5389 transitions. Word has length 9 [2022-11-19 07:56:28,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:56:28,542 INFO L495 AbstractCegarLoop]: Abstraction has 1826 states and 5389 transitions. [2022-11-19 07:56:28,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:56:28,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1826 states and 5389 transitions. [2022-11-19 07:56:28,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 07:56:28,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:56:28,544 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:56:28,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:56:28,544 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread_usbThread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-19 07:56:28,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:56:28,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1643618766, now seen corresponding path program 1 times [2022-11-19 07:56:28,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:56:28,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595992880] [2022-11-19 07:56:28,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:56:28,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:56:28,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:56:28,611 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:56:28,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:56:28,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595992880] [2022-11-19 07:56:28,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595992880] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:56:28,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:56:28,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:56:28,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705601260] [2022-11-19 07:56:28,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:56:28,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:56:28,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:56:28,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:56:28,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:56:28,614 INFO L87 Difference]: Start difference. First operand 1826 states and 5389 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) [2022-11-19 07:56:28,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:56:28,704 INFO L93 Difference]: Finished difference Result 1672 states and 4734 transitions. [2022-11-19 07:56:28,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:56:28,704 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 [2022-11-19 07:56:28,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:56:28,713 INFO L225 Difference]: With dead ends: 1672 [2022-11-19 07:56:28,714 INFO L226 Difference]: Without dead ends: 1672 [2022-11-19 07:56:28,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:56:28,715 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 28 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:56:28,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 47 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:56:28,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2022-11-19 07:56:28,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1672. [2022-11-19 07:56:28,754 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) [2022-11-19 07:56:28,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 4734 transitions. [2022-11-19 07:56:28,760 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 4734 transitions. Word has length 9 [2022-11-19 07:56:28,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:56:28,761 INFO L495 AbstractCegarLoop]: Abstraction has 1672 states and 4734 transitions. [2022-11-19 07:56:28,761 INFO L496 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) [2022-11-19 07:56:28,761 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 4734 transitions. [2022-11-19 07:56:28,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 07:56:28,762 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:56:28,762 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:56:28,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:56:28,763 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-19 07:56:28,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:56:28,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1661354579, now seen corresponding path program 1 times [2022-11-19 07:56:28,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:56:28,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715149879] [2022-11-19 07:56:28,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:56:28,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:56:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:56:28,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:56:28,900 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:56:28,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715149879] [2022-11-19 07:56:28,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715149879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:56:28,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:56:28,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:56:28,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454116384] [2022-11-19 07:56:28,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:56:28,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:56:28,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:56:28,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:56:28,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:56:28,903 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) [2022-11-19 07:56:28,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:56:28,984 INFO L93 Difference]: Finished difference Result 1601 states and 4588 transitions. [2022-11-19 07:56:28,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:56:28,985 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 [2022-11-19 07:56:28,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:56:28,993 INFO L225 Difference]: With dead ends: 1601 [2022-11-19 07:56:28,993 INFO L226 Difference]: Without dead ends: 1600 [2022-11-19 07:56:28,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:56:28,994 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 10 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:56:28,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 50 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:56:28,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2022-11-19 07:56:29,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1600. [2022-11-19 07:56:29,034 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) [2022-11-19 07:56:29,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1600 states to 1600 states and 4586 transitions. [2022-11-19 07:56:29,041 INFO L78 Accepts]: Start accepts. Automaton has 1600 states and 4586 transitions. Word has length 9 [2022-11-19 07:56:29,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:56:29,042 INFO L495 AbstractCegarLoop]: Abstraction has 1600 states and 4586 transitions. [2022-11-19 07:56:29,042 INFO L496 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) [2022-11-19 07:56:29,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1600 states and 4586 transitions. [2022-11-19 07:56:29,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-19 07:56:29,043 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:56:29,043 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:56:29,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 07:56:29,044 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-19 07:56:29,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:56:29,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1233293881, now seen corresponding path program 1 times [2022-11-19 07:56:29,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:56:29,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163620748] [2022-11-19 07:56:29,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:56:29,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:56:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:56:29,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:56:29,294 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:56:29,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163620748] [2022-11-19 07:56:29,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163620748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:56:29,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:56:29,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:56:29,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254683354] [2022-11-19 07:56:29,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:56:29,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:56:29,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:56:29,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:56:29,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:56:29,296 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) [2022-11-19 07:56:29,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:56:29,552 INFO L93 Difference]: Finished difference Result 1460 states and 4165 transitions. [2022-11-19 07:56:29,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:56:29,553 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 [2022-11-19 07:56:29,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:56:29,559 INFO L225 Difference]: With dead ends: 1460 [2022-11-19 07:56:29,559 INFO L226 Difference]: Without dead ends: 1460 [2022-11-19 07:56:29,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:56:29,560 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 117 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:56:29,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 66 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:56:29,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2022-11-19 07:56:29,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 1460. [2022-11-19 07:56:29,598 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) [2022-11-19 07:56:29,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1460 states to 1460 states and 4165 transitions. [2022-11-19 07:56:29,640 INFO L78 Accepts]: Start accepts. Automaton has 1460 states and 4165 transitions. Word has length 9 [2022-11-19 07:56:29,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:56:29,640 INFO L495 AbstractCegarLoop]: Abstraction has 1460 states and 4165 transitions. [2022-11-19 07:56:29,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:56:29,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1460 states and 4165 transitions. [2022-11-19 07:56:29,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 07:56:29,642 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:56:29,642 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:56:29,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-19 07:56:29,642 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-19 07:56:29,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:56:29,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1031952773, now seen corresponding path program 1 times [2022-11-19 07:56:29,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:56:29,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631172231] [2022-11-19 07:56:29,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:56:29,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:56:29,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:56:29,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:56:29,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:56:29,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631172231] [2022-11-19 07:56:29,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631172231] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:56:29,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:56:29,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:56:29,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498419824] [2022-11-19 07:56:29,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:56:29,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:56:29,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:56:29,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:56:29,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:56:29,984 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) [2022-11-19 07:56:30,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:56:30,209 INFO L93 Difference]: Finished difference Result 2538 states and 7256 transitions. [2022-11-19 07:56:30,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:56:30,210 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 [2022-11-19 07:56:30,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:56:30,224 INFO L225 Difference]: With dead ends: 2538 [2022-11-19 07:56:30,224 INFO L226 Difference]: Without dead ends: 2538 [2022-11-19 07:56:30,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:56:30,225 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 97 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:56:30,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 66 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:56:30,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2022-11-19 07:56:30,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 1390. [2022-11-19 07:56:30,269 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) [2022-11-19 07:56:30,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 3952 transitions. [2022-11-19 07:56:30,274 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 3952 transitions. Word has length 11 [2022-11-19 07:56:30,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:56:30,275 INFO L495 AbstractCegarLoop]: Abstraction has 1390 states and 3952 transitions. [2022-11-19 07:56:30,275 INFO L496 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) [2022-11-19 07:56:30,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 3952 transitions. [2022-11-19 07:56:30,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-19 07:56:30,276 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:56:30,277 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:56:30,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-19 07:56:30,277 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-19 07:56:30,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:56:30,278 INFO L85 PathProgramCache]: Analyzing trace with hash -481432448, now seen corresponding path program 1 times [2022-11-19 07:56:30,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:56:30,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122085724] [2022-11-19 07:56:30,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:56:30,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:56:30,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:56:30,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:56:30,379 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:56:30,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122085724] [2022-11-19 07:56:30,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122085724] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:56:30,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:56:30,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:56:30,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103976523] [2022-11-19 07:56:30,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:56:30,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:56:30,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:56:30,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:56:30,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:56:30,382 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) [2022-11-19 07:56:30,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:56:30,458 INFO L93 Difference]: Finished difference Result 670 states and 1946 transitions. [2022-11-19 07:56:30,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:56:30,458 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 [2022-11-19 07:56:30,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:56:30,462 INFO L225 Difference]: With dead ends: 670 [2022-11-19 07:56:30,462 INFO L226 Difference]: Without dead ends: 609 [2022-11-19 07:56:30,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:56:30,463 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 15 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:56:30,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 40 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:56:30,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2022-11-19 07:56:30,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 609. [2022-11-19 07:56:30,484 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) [2022-11-19 07:56:30,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 1757 transitions. [2022-11-19 07:56:30,487 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 1757 transitions. Word has length 12 [2022-11-19 07:56:30,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:56:30,487 INFO L495 AbstractCegarLoop]: Abstraction has 609 states and 1757 transitions. [2022-11-19 07:56:30,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:56:30,488 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 1757 transitions. [2022-11-19 07:56:30,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 07:56:30,490 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:56:30,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:56:30,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-19 07:56:30,491 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-19 07:56:30,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:56:30,491 INFO L85 PathProgramCache]: Analyzing trace with hash 752667333, now seen corresponding path program 1 times [2022-11-19 07:56:30,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:56:30,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131383544] [2022-11-19 07:56:30,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:56:30,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:56:30,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:56:30,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:56:30,605 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:56:30,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131383544] [2022-11-19 07:56:30,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131383544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:56:30,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:56:30,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:56:30,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202086393] [2022-11-19 07:56:30,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:56:30,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:56:30,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:56:30,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:56:30,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:56:30,608 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) [2022-11-19 07:56:30,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:56:30,671 INFO L93 Difference]: Finished difference Result 608 states and 1756 transitions. [2022-11-19 07:56:30,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:56:30,671 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 [2022-11-19 07:56:30,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:56:30,672 INFO L225 Difference]: With dead ends: 608 [2022-11-19 07:56:30,672 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:56:30,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:56:30,674 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:56:30,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:56:30,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:56:30,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:56:30,676 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) [2022-11-19 07:56:30,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:56:30,677 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2022-11-19 07:56:30,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:56:30,677 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:56:30,677 INFO L496 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) [2022-11-19 07:56:30,677 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:56:30,678 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:56:30,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (35 of 36 remaining) [2022-11-19 07:56:30,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2022-11-19 07:56:30,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2022-11-19 07:56:30,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2022-11-19 07:56:30,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2022-11-19 07:56:30,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2022-11-19 07:56:30,682 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2022-11-19 07:56:30,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2022-11-19 07:56:30,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2022-11-19 07:56:30,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 36 remaining) [2022-11-19 07:56:30,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2022-11-19 07:56:30,683 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2022-11-19 07:56:30,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2022-11-19 07:56:30,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2022-11-19 07:56:30,684 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2022-11-19 07:56:30,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2022-11-19 07:56:30,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2022-11-19 07:56:30,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2022-11-19 07:56:30,685 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2022-11-19 07:56:30,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2022-11-19 07:56:30,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2022-11-19 07:56:30,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 36 remaining) [2022-11-19 07:56:30,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2022-11-19 07:56:30,686 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2022-11-19 07:56:30,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2022-11-19 07:56:30,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2022-11-19 07:56:30,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2022-11-19 07:56:30,687 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2022-11-19 07:56:30,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2022-11-19 07:56:30,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2022-11-19 07:56:30,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2022-11-19 07:56:30,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2022-11-19 07:56:30,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2022-11-19 07:56:30,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2022-11-19 07:56:30,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2022-11-19 07:56:30,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 36 remaining) [2022-11-19 07:56:30,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-19 07:56:30,693 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:56:30,698 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-19 07:56:30,699 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:56:30,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:56:30 BasicIcfg [2022-11-19 07:56:30,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:56:30,703 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:56:30,704 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:56:30,704 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:56:30,704 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:56:10" (3/4) ... [2022-11-19 07:56:30,707 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:56:30,713 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_ath9k [2022-11-19 07:56:30,714 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_usb [2022-11-19 07:56:30,719 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-19 07:56:30,720 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-19 07:56:30,720 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-19 07:56:30,720 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:56:30,769 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52e313f-a863-4fc7-aa19-ad14fbd25072/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:56:30,770 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:56:30,770 INFO L158 Benchmark]: Toolchain (without parser) took 22666.16ms. Allocated memory was 100.7MB in the beginning and 293.6MB in the end (delta: 192.9MB). Free memory was 64.6MB in the beginning and 198.4MB in the end (delta: -133.7MB). Peak memory consumption was 57.6MB. Max. memory is 16.1GB. [2022-11-19 07:56:30,770 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 100.7MB. Free memory is still 50.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:56:30,771 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1411.42ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 64.4MB in the beginning and 89.2MB in the end (delta: -24.8MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2022-11-19 07:56:30,771 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.58ms. Allocated memory is still 130.0MB. Free memory was 89.2MB in the beginning and 85.1MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 07:56:30,772 INFO L158 Benchmark]: Boogie Preprocessor took 49.56ms. Allocated memory is still 130.0MB. Free memory was 85.1MB in the beginning and 82.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:56:30,773 INFO L158 Benchmark]: RCFGBuilder took 956.19ms. Allocated memory is still 130.0MB. Free memory was 82.4MB in the beginning and 91.5MB in the end (delta: -9.1MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. [2022-11-19 07:56:30,773 INFO L158 Benchmark]: TraceAbstraction took 20102.68ms. Allocated memory was 130.0MB in the beginning and 293.6MB in the end (delta: 163.6MB). Free memory was 91.5MB in the beginning and 201.5MB in the end (delta: -110.0MB). Peak memory consumption was 54.6MB. Max. memory is 16.1GB. [2022-11-19 07:56:30,774 INFO L158 Benchmark]: Witness Printer took 66.24ms. Allocated memory is still 293.6MB. Free memory was 201.5MB in the beginning and 198.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:56:30,775 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 100.7MB. Free memory is still 50.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1411.42ms. Allocated memory was 100.7MB in the beginning and 130.0MB in the end (delta: 29.4MB). Free memory was 64.4MB in the beginning and 89.2MB in the end (delta: -24.8MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.58ms. Allocated memory is still 130.0MB. Free memory was 89.2MB in the beginning and 85.1MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.56ms. Allocated memory is still 130.0MB. Free memory was 85.1MB in the beginning and 82.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 956.19ms. Allocated memory is still 130.0MB. Free memory was 82.4MB in the beginning and 91.5MB in the end (delta: -9.1MB). Peak memory consumption was 25.8MB. Max. memory is 16.1GB. * TraceAbstraction took 20102.68ms. Allocated memory was 130.0MB in the beginning and 293.6MB in the end (delta: 163.6MB). Free memory was 91.5MB in the beginning and 201.5MB in the end (delta: -110.0MB). Peak memory consumption was 54.6MB. Max. memory is 16.1GB. * Witness Printer took 66.24ms. Allocated memory is still 293.6MB. Free memory was 201.5MB in the beginning and 198.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 15.1s, 418 PlacesBefore, 87 PlacesAfterwards, 448 TransitionsBefore, 97 TransitionsAfterwards, 18816 CoEnabledTransitionPairs, 9 FixpointIterations, 242 TrivialSequentialCompositions, 205 ConcurrentSequentialCompositions, 24 TrivialYvCompositions, 47 ConcurrentYvCompositions, 20 ChoiceCompositions, 538 TotalNumberOfCompositions, 43331 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 25373, independent: 24774, independent conditional: 0, independent unconditional: 24774, dependent: 599, dependent conditional: 0, dependent unconditional: 599, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 13679, independent: 13557, independent conditional: 0, independent unconditional: 13557, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 13679, independent: 13475, independent conditional: 0, independent unconditional: 13475, dependent: 204, dependent conditional: 0, dependent unconditional: 204, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 204, independent: 82, independent conditional: 0, independent unconditional: 82, dependent: 122, dependent conditional: 0, dependent unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 446, independent: 175, independent conditional: 0, independent unconditional: 175, dependent: 271, dependent conditional: 0, dependent unconditional: 271, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 25373, independent: 11217, independent conditional: 0, independent unconditional: 11217, dependent: 477, dependent conditional: 0, dependent unconditional: 477, unknown: 13679, unknown conditional: 0, unknown unconditional: 13679] , Statistics on independence cache: Total cache size (in pairs): 855, Positive cache size: 801, Positive conditional cache size: 0, Positive unconditional cache size: 801, Negative cache size: 54, Negative conditional cache size: 0, Negative unconditional cache size: 54, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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: 19.9s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 15.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 408 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 408 mSDsluCounter, 527 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 197 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1078 IncrementalHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 330 mSDtfsCounter, 1078 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, 0.1s 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: 0.8s AutomataMinimizationTime, 12 MinimizatonAttempts, 1350 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 216 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! [2022-11-19 07:56:30,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d52e313f-a863-4fc7-aa19-ad14fbd25072/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE