./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 e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c753de-e18d-4008-bca5-abc50e6bcb07/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c753de-e18d-4008-bca5-abc50e6bcb07/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c753de-e18d-4008-bca5-abc50e6bcb07/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c753de-e18d-4008-bca5-abc50e6bcb07/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.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_25c753de-e18d-4008-bca5-abc50e6bcb07/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c753de-e18d-4008-bca5-abc50e6bcb07/bin/uautomizer-tPACEb0tL8 --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 Automizer --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-e04fb08 [2022-11-16 10:57:27,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 10:57:27,944 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 10:57:27,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 10:57:27,985 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 10:57:27,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 10:57:27,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 10:57:27,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 10:57:27,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 10:57:27,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 10:57:27,999 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 10:57:28,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 10:57:28,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 10:57:28,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 10:57:28,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 10:57:28,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 10:57:28,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 10:57:28,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 10:57:28,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 10:57:28,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 10:57:28,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 10:57:28,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 10:57:28,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 10:57:28,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 10:57:28,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 10:57:28,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 10:57:28,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 10:57:28,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 10:57:28,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 10:57:28,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 10:57:28,046 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 10:57:28,047 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 10:57:28,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 10:57:28,051 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 10:57:28,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 10:57:28,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 10:57:28,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 10:57:28,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 10:57:28,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 10:57:28,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 10:57:28,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 10:57:28,057 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c753de-e18d-4008-bca5-abc50e6bcb07/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 10:57:28,080 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 10:57:28,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 10:57:28,081 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 10:57:28,081 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 10:57:28,082 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 10:57:28,082 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 10:57:28,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 10:57:28,083 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 10:57:28,083 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 10:57:28,083 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 10:57:28,084 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 10:57:28,084 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 10:57:28,084 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 10:57:28,084 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 10:57:28,084 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 10:57:28,085 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 10:57:28,085 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 10:57:28,085 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 10:57:28,085 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 10:57:28,085 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 10:57:28,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 10:57:28,086 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 10:57:28,086 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 10:57:28,086 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 10:57:28,087 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 10:57:28,087 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 10:57:28,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:57:28,087 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 10:57:28,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 10:57:28,088 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 10:57:28,088 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 10:57:28,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 10:57:28,088 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 10:57:28,089 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 10:57:28,089 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 10:57:28,089 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_25c753de-e18d-4008-bca5-abc50e6bcb07/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c753de-e18d-4008-bca5-abc50e6bcb07/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d [2022-11-16 10:57:28,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 10:57:28,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 10:57:28,374 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 10:57:28,376 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 10:57:28,377 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 10:57:28,378 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c753de-e18d-4008-bca5-abc50e6bcb07/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2022-11-16 10:57:28,457 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c753de-e18d-4008-bca5-abc50e6bcb07/bin/uautomizer-tPACEb0tL8/data/b5ca875ac/cb5722b08d4f4fb78879d00fc76c6a28/FLAG0d4affdc0 [2022-11-16 10:57:29,028 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 10:57:29,031 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c753de-e18d-4008-bca5-abc50e6bcb07/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2022-11-16 10:57:29,066 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c753de-e18d-4008-bca5-abc50e6bcb07/bin/uautomizer-tPACEb0tL8/data/b5ca875ac/cb5722b08d4f4fb78879d00fc76c6a28/FLAG0d4affdc0 [2022-11-16 10:57:29,274 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c753de-e18d-4008-bca5-abc50e6bcb07/bin/uautomizer-tPACEb0tL8/data/b5ca875ac/cb5722b08d4f4fb78879d00fc76c6a28 [2022-11-16 10:57:29,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 10:57:29,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 10:57:29,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 10:57:29,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 10:57:29,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 10:57:29,290 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:57:29" (1/1) ... [2022-11-16 10:57:29,291 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@371759ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:29, skipping insertion in model container [2022-11-16 10:57:29,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 10:57:29" (1/1) ... [2022-11-16 10:57:29,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 10:57:29,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 10:57:30,146 WARN L229 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_25c753de-e18d-4008-bca5-abc50e6bcb07/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2022-11-16 10:57:30,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:57:30,243 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 10:57:30,307 WARN L229 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_25c753de-e18d-4008-bca5-abc50e6bcb07/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2022-11-16 10:57:30,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 10:57:30,467 INFO L208 MainTranslator]: Completed translation [2022-11-16 10:57:30,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:30 WrapperNode [2022-11-16 10:57:30,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 10:57:30,469 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 10:57:30,469 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 10:57:30,469 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 10:57:30,479 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:30" (1/1) ... [2022-11-16 10:57:30,525 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:30" (1/1) ... [2022-11-16 10:57:30,563 INFO L138 Inliner]: procedures = 486, calls = 43, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 265 [2022-11-16 10:57:30,564 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 10:57:30,565 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 10:57:30,565 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 10:57:30,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 10:57:30,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:30" (1/1) ... [2022-11-16 10:57:30,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:30" (1/1) ... [2022-11-16 10:57:30,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:30" (1/1) ... [2022-11-16 10:57:30,579 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:30" (1/1) ... [2022-11-16 10:57:30,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:30" (1/1) ... [2022-11-16 10:57:30,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:30" (1/1) ... [2022-11-16 10:57:30,600 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:30" (1/1) ... [2022-11-16 10:57:30,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:30" (1/1) ... [2022-11-16 10:57:30,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 10:57:30,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 10:57:30,615 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 10:57:30,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 10:57:30,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:30" (1/1) ... [2022-11-16 10:57:30,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 10:57:30,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c753de-e18d-4008-bca5-abc50e6bcb07/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 10:57:30,651 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c753de-e18d-4008-bca5-abc50e6bcb07/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 10:57:30,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c753de-e18d-4008-bca5-abc50e6bcb07/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 10:57:30,691 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2022-11-16 10:57:30,692 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2022-11-16 10:57:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 10:57:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 10:57:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2022-11-16 10:57:30,692 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2022-11-16 10:57:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 10:57:30,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 10:57:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 10:57:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 10:57:30,693 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 10:57:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 10:57:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 10:57:30,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 10:57:30,695 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 10:57:31,020 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 10:57:31,022 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 10:57:31,494 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 10:57:31,505 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 10:57:31,505 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 10:57:31,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:57:31 BoogieIcfgContainer [2022-11-16 10:57:31,508 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 10:57:31,510 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 10:57:31,511 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 10:57:31,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 10:57:31,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 10:57:29" (1/3) ... [2022-11-16 10:57:31,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e44caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:57:31, skipping insertion in model container [2022-11-16 10:57:31,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 10:57:30" (2/3) ... [2022-11-16 10:57:31,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52e44caa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 10:57:31, skipping insertion in model container [2022-11-16 10:57:31,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:57:31" (3/3) ... [2022-11-16 10:57:31,518 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2022-11-16 10:57:31,527 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 10:57:31,539 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 10:57:31,540 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-11-16 10:57:31,540 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 10:57:31,692 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-11-16 10:57:31,755 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 418 places, 448 transitions, 926 flow [2022-11-16 10:57:31,978 INFO L130 PetriNetUnfolder]: 33/459 cut-off events. [2022-11-16 10:57:31,978 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-16 10:57:31,990 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. [2022-11-16 10:57:31,990 INFO L82 GeneralOperation]: Start removeDead. Operand has 418 places, 448 transitions, 926 flow [2022-11-16 10:57:32,001 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 293 places, 310 transitions, 637 flow [2022-11-16 10:57:32,016 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 10:57:32,023 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=PETRI_NET, 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;@49a5ac5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 10:57:32,023 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2022-11-16 10:57:32,030 INFO L130 PetriNetUnfolder]: 0/34 cut-off events. [2022-11-16 10:57:32,030 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 10:57:32,030 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:32,031 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:57:32,031 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)] === [2022-11-16 10:57:32,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:32,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1786371418, now seen corresponding path program 1 times [2022-11-16 10:57:32,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:32,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035930903] [2022-11-16 10:57:32,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:32,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:32,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:57:32,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:32,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035930903] [2022-11-16 10:57:32,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035930903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:32,523 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:32,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:57:32,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485234958] [2022-11-16 10:57:32,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:32,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:57:32,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:32,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:57:32,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:57:32,569 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 448 [2022-11-16 10:57:32,574 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 310 transitions, 637 flow. Second operand has 3 states, 3 states have (on average 368.3333333333333) internal successors, (1105), 3 states have internal predecessors, (1105), 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) [2022-11-16 10:57:32,575 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:32,575 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 448 [2022-11-16 10:57:32,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:32,896 INFO L130 PetriNetUnfolder]: 118/919 cut-off events. [2022-11-16 10:57:32,896 INFO L131 PetriNetUnfolder]: For 29/35 co-relation queries the response was YES. [2022-11-16 10:57:32,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1163 conditions, 919 events. 118/919 cut-off events. For 29/35 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4483 event pairs, 78 based on Foata normal form. 52/819 useless extension candidates. Maximal degree in co-relation 862. Up to 224 conditions per place. [2022-11-16 10:57:32,908 INFO L137 encePairwiseOnDemand]: 435/448 looper letters, 41 selfloop transitions, 2 changer transitions 2/293 dead transitions. [2022-11-16 10:57:32,908 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 293 transitions, 689 flow [2022-11-16 10:57:32,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:57:32,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:57:32,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1155 transitions. [2022-11-16 10:57:32,934 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.859375 [2022-11-16 10:57:32,935 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1155 transitions. [2022-11-16 10:57:32,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1155 transitions. [2022-11-16 10:57:32,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:32,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1155 transitions. [2022-11-16 10:57:32,991 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 385.0) internal successors, (1155), 3 states have internal predecessors, (1155), 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) [2022-11-16 10:57:33,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:33,004 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:33,006 INFO L175 Difference]: Start difference. First operand has 293 places, 310 transitions, 637 flow. Second operand 3 states and 1155 transitions. [2022-11-16 10:57:33,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 293 transitions, 689 flow [2022-11-16 10:57:33,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 293 transitions, 685 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:57:33,026 INFO L231 Difference]: Finished difference. Result has 286 places, 291 transitions, 599 flow [2022-11-16 10:57:33,028 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=599, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=599, PETRI_PLACES=286, PETRI_TRANSITIONS=291} [2022-11-16 10:57:33,035 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -7 predicate places. [2022-11-16 10:57:33,036 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 291 transitions, 599 flow [2022-11-16 10:57:33,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 368.3333333333333) internal successors, (1105), 3 states have internal predecessors, (1105), 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) [2022-11-16 10:57:33,037 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:33,037 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:57:33,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 10:57:33,038 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 10:57:33,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:33,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1148174560, now seen corresponding path program 1 times [2022-11-16 10:57:33,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:33,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841203900] [2022-11-16 10:57:33,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:33,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:33,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:57:33,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:33,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841203900] [2022-11-16 10:57:33,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841203900] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:33,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:33,218 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:57:33,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12668039] [2022-11-16 10:57:33,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:33,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:57:33,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:33,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:57:33,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:57:33,225 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 448 [2022-11-16 10:57:33,227 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 291 transitions, 599 flow. Second operand has 3 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 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) [2022-11-16 10:57:33,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:33,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 448 [2022-11-16 10:57:33,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:33,618 INFO L130 PetriNetUnfolder]: 129/1107 cut-off events. [2022-11-16 10:57:33,618 INFO L131 PetriNetUnfolder]: For 16/21 co-relation queries the response was YES. [2022-11-16 10:57:33,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1365 conditions, 1107 events. 129/1107 cut-off events. For 16/21 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 6007 event pairs, 31 based on Foata normal form. 1/958 useless extension candidates. Maximal degree in co-relation 1321. Up to 130 conditions per place. [2022-11-16 10:57:33,626 INFO L137 encePairwiseOnDemand]: 428/448 looper letters, 39 selfloop transitions, 14 changer transitions 0/304 dead transitions. [2022-11-16 10:57:33,627 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 304 transitions, 732 flow [2022-11-16 10:57:33,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:57:33,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:57:33,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1169 transitions. [2022-11-16 10:57:33,630 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8697916666666666 [2022-11-16 10:57:33,630 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1169 transitions. [2022-11-16 10:57:33,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1169 transitions. [2022-11-16 10:57:33,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:33,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1169 transitions. [2022-11-16 10:57:33,634 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 389.6666666666667) internal successors, (1169), 3 states have internal predecessors, (1169), 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) [2022-11-16 10:57:33,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:33,639 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:33,639 INFO L175 Difference]: Start difference. First operand has 286 places, 291 transitions, 599 flow. Second operand 3 states and 1169 transitions. [2022-11-16 10:57:33,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 304 transitions, 732 flow [2022-11-16 10:57:33,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 304 transitions, 728 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:57:33,650 INFO L231 Difference]: Finished difference. Result has 283 places, 297 transitions, 687 flow [2022-11-16 10:57:33,651 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=589, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=687, PETRI_PLACES=283, PETRI_TRANSITIONS=297} [2022-11-16 10:57:33,652 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -10 predicate places. [2022-11-16 10:57:33,652 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 297 transitions, 687 flow [2022-11-16 10:57:33,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 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) [2022-11-16 10:57:33,653 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:33,653 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:57:33,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 10:57:33,654 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 10:57:33,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:33,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1603727501, now seen corresponding path program 1 times [2022-11-16 10:57:33,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:33,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922476562] [2022-11-16 10:57:33,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:33,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:33,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:33,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:57:33,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:33,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922476562] [2022-11-16 10:57:33,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922476562] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:33,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:33,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:57:33,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615631153] [2022-11-16 10:57:33,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:33,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:57:33,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:33,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:57:33,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:57:33,820 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 448 [2022-11-16 10:57:33,821 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 297 transitions, 687 flow. Second operand has 3 states, 3 states have (on average 369.6666666666667) internal successors, (1109), 3 states have internal predecessors, (1109), 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) [2022-11-16 10:57:33,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:33,823 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 448 [2022-11-16 10:57:33,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:34,140 INFO L130 PetriNetUnfolder]: 127/1029 cut-off events. [2022-11-16 10:57:34,140 INFO L131 PetriNetUnfolder]: For 237/269 co-relation queries the response was YES. [2022-11-16 10:57:34,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1510 conditions, 1029 events. 127/1029 cut-off events. For 237/269 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5345 event pairs, 52 based on Foata normal form. 0/894 useless extension candidates. Maximal degree in co-relation 1204. Up to 247 conditions per place. [2022-11-16 10:57:34,148 INFO L137 encePairwiseOnDemand]: 445/448 looper letters, 46 selfloop transitions, 2 changer transitions 0/296 dead transitions. [2022-11-16 10:57:34,149 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 296 transitions, 781 flow [2022-11-16 10:57:34,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:57:34,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:57:34,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1141 transitions. [2022-11-16 10:57:34,153 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8489583333333334 [2022-11-16 10:57:34,154 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1141 transitions. [2022-11-16 10:57:34,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1141 transitions. [2022-11-16 10:57:34,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:34,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1141 transitions. [2022-11-16 10:57:34,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 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) [2022-11-16 10:57:34,162 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:34,163 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:34,163 INFO L175 Difference]: Start difference. First operand has 283 places, 297 transitions, 687 flow. Second operand 3 states and 1141 transitions. [2022-11-16 10:57:34,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 296 transitions, 781 flow [2022-11-16 10:57:34,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 296 transitions, 753 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:57:34,175 INFO L231 Difference]: Finished difference. Result has 282 places, 296 transitions, 661 flow [2022-11-16 10:57:34,176 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=657, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=661, PETRI_PLACES=282, PETRI_TRANSITIONS=296} [2022-11-16 10:57:34,178 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -11 predicate places. [2022-11-16 10:57:34,179 INFO L495 AbstractCegarLoop]: Abstraction has has 282 places, 296 transitions, 661 flow [2022-11-16 10:57:34,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 369.6666666666667) internal successors, (1109), 3 states have internal predecessors, (1109), 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) [2022-11-16 10:57:34,180 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:34,180 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:57:34,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 10:57:34,182 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread_usbErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 10:57:34,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:34,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1951861498, now seen corresponding path program 1 times [2022-11-16 10:57:34,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:34,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127675629] [2022-11-16 10:57:34,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:34,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:34,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:34,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:57:34,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:34,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127675629] [2022-11-16 10:57:34,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127675629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:34,310 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:34,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:57:34,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934042237] [2022-11-16 10:57:34,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:34,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:57:34,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:34,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:57:34,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:57:34,320 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 448 [2022-11-16 10:57:34,322 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 296 transitions, 661 flow. Second operand has 3 states, 3 states have (on average 384.3333333333333) internal successors, (1153), 3 states have internal predecessors, (1153), 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) [2022-11-16 10:57:34,322 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:34,322 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 448 [2022-11-16 10:57:34,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:34,545 INFO L130 PetriNetUnfolder]: 59/800 cut-off events. [2022-11-16 10:57:34,546 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-16 10:57:34,549 INFO L83 FinitePrefix]: Finished finitePrefix Result has 943 conditions, 800 events. 59/800 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3546 event pairs, 9 based on Foata normal form. 0/701 useless extension candidates. Maximal degree in co-relation 901. Up to 57 conditions per place. [2022-11-16 10:57:34,553 INFO L137 encePairwiseOnDemand]: 445/448 looper letters, 22 selfloop transitions, 2 changer transitions 0/295 dead transitions. [2022-11-16 10:57:34,553 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 295 transitions, 707 flow [2022-11-16 10:57:34,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:57:34,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:57:34,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1174 transitions. [2022-11-16 10:57:34,557 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8735119047619048 [2022-11-16 10:57:34,557 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1174 transitions. [2022-11-16 10:57:34,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1174 transitions. [2022-11-16 10:57:34,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:34,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1174 transitions. [2022-11-16 10:57:34,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 391.3333333333333) internal successors, (1174), 3 states have internal predecessors, (1174), 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) [2022-11-16 10:57:34,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:34,570 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:34,571 INFO L175 Difference]: Start difference. First operand has 282 places, 296 transitions, 661 flow. Second operand 3 states and 1174 transitions. [2022-11-16 10:57:34,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 295 transitions, 707 flow [2022-11-16 10:57:34,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 295 transitions, 703 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:57:34,580 INFO L231 Difference]: Finished difference. Result has 281 places, 295 transitions, 659 flow [2022-11-16 10:57:34,582 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=655, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=659, PETRI_PLACES=281, PETRI_TRANSITIONS=295} [2022-11-16 10:57:34,584 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -12 predicate places. [2022-11-16 10:57:34,584 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 295 transitions, 659 flow [2022-11-16 10:57:34,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 384.3333333333333) internal successors, (1153), 3 states have internal predecessors, (1153), 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) [2022-11-16 10:57:34,585 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:34,585 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:57:34,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 10:57:34,587 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_usbErr1ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 10:57:34,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:34,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1277942397, now seen corresponding path program 1 times [2022-11-16 10:57:34,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:34,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922795653] [2022-11-16 10:57:34,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:34,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:34,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:57:34,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:34,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922795653] [2022-11-16 10:57:34,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922795653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:34,732 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:34,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:57:34,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788878898] [2022-11-16 10:57:34,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:34,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:57:34,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:34,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:57:34,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:57:34,736 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 448 [2022-11-16 10:57:34,738 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 295 transitions, 659 flow. Second operand has 3 states, 3 states have (on average 386.6666666666667) internal successors, (1160), 3 states have internal predecessors, (1160), 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) [2022-11-16 10:57:34,738 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:34,738 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 448 [2022-11-16 10:57:34,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:34,916 INFO L130 PetriNetUnfolder]: 64/830 cut-off events. [2022-11-16 10:57:34,916 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-16 10:57:34,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 971 conditions, 830 events. 64/830 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3757 event pairs, 9 based on Foata normal form. 0/731 useless extension candidates. Maximal degree in co-relation 863. Up to 57 conditions per place. [2022-11-16 10:57:34,923 INFO L137 encePairwiseOnDemand]: 440/448 looper letters, 17 selfloop transitions, 5 changer transitions 0/295 dead transitions. [2022-11-16 10:57:34,924 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 295 transitions, 703 flow [2022-11-16 10:57:34,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:57:34,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:57:34,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1180 transitions. [2022-11-16 10:57:34,927 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8779761904761905 [2022-11-16 10:57:34,927 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1180 transitions. [2022-11-16 10:57:34,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1180 transitions. [2022-11-16 10:57:34,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:34,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1180 transitions. [2022-11-16 10:57:34,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 393.3333333333333) internal successors, (1180), 3 states have internal predecessors, (1180), 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) [2022-11-16 10:57:34,935 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:34,936 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:34,936 INFO L175 Difference]: Start difference. First operand has 281 places, 295 transitions, 659 flow. Second operand 3 states and 1180 transitions. [2022-11-16 10:57:34,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 295 transitions, 703 flow [2022-11-16 10:57:34,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 295 transitions, 699 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:57:34,945 INFO L231 Difference]: Finished difference. Result has 279 places, 295 transitions, 676 flow [2022-11-16 10:57:34,945 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=649, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=676, PETRI_PLACES=279, PETRI_TRANSITIONS=295} [2022-11-16 10:57:34,949 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -14 predicate places. [2022-11-16 10:57:34,949 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 295 transitions, 676 flow [2022-11-16 10:57:34,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 386.6666666666667) internal successors, (1160), 3 states have internal predecessors, (1160), 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) [2022-11-16 10:57:34,950 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:34,951 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:57:34,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 10:57:34,951 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 10:57:34,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:34,953 INFO L85 PathProgramCache]: Analyzing trace with hash 1057978275, now seen corresponding path program 1 times [2022-11-16 10:57:34,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:34,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76631359] [2022-11-16 10:57:34,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:34,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:35,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:35,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:57:35,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:35,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76631359] [2022-11-16 10:57:35,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76631359] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:35,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:35,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:57:35,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617383144] [2022-11-16 10:57:35,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:35,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:57:35,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:35,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:57:35,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:57:35,658 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 448 [2022-11-16 10:57:35,663 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 295 transitions, 676 flow. Second operand has 6 states, 6 states have (on average 397.6666666666667) internal successors, (2386), 6 states have internal predecessors, (2386), 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) [2022-11-16 10:57:35,663 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:35,663 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 448 [2022-11-16 10:57:35,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:36,190 INFO L130 PetriNetUnfolder]: 228/1716 cut-off events. [2022-11-16 10:57:36,190 INFO L131 PetriNetUnfolder]: For 41/50 co-relation queries the response was YES. [2022-11-16 10:57:36,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2196 conditions, 1716 events. 228/1716 cut-off events. For 41/50 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 9940 event pairs, 41 based on Foata normal form. 4/1503 useless extension candidates. Maximal degree in co-relation 969. Up to 92 conditions per place. [2022-11-16 10:57:36,202 INFO L137 encePairwiseOnDemand]: 443/448 looper letters, 52 selfloop transitions, 4 changer transitions 16/330 dead transitions. [2022-11-16 10:57:36,202 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 330 transitions, 894 flow [2022-11-16 10:57:36,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:57:36,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 10:57:36,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2433 transitions. [2022-11-16 10:57:36,208 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9051339285714286 [2022-11-16 10:57:36,208 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2433 transitions. [2022-11-16 10:57:36,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2433 transitions. [2022-11-16 10:57:36,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:36,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2433 transitions. [2022-11-16 10:57:36,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 405.5) internal successors, (2433), 6 states have internal predecessors, (2433), 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) [2022-11-16 10:57:36,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 448.0) internal successors, (3136), 7 states have internal predecessors, (3136), 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) [2022-11-16 10:57:36,223 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 448.0) internal successors, (3136), 7 states have internal predecessors, (3136), 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) [2022-11-16 10:57:36,224 INFO L175 Difference]: Start difference. First operand has 279 places, 295 transitions, 676 flow. Second operand 6 states and 2433 transitions. [2022-11-16 10:57:36,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 330 transitions, 894 flow [2022-11-16 10:57:36,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 330 transitions, 889 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 10:57:36,231 INFO L231 Difference]: Finished difference. Result has 282 places, 278 transitions, 641 flow [2022-11-16 10:57:36,231 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=669, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=641, PETRI_PLACES=282, PETRI_TRANSITIONS=278} [2022-11-16 10:57:36,232 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -11 predicate places. [2022-11-16 10:57:36,232 INFO L495 AbstractCegarLoop]: Abstraction has has 282 places, 278 transitions, 641 flow [2022-11-16 10:57:36,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 397.6666666666667) internal successors, (2386), 6 states have internal predecessors, (2386), 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) [2022-11-16 10:57:36,234 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:36,234 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:57:36,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 10:57:36,234 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread_usbErr9ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 10:57:36,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:36,235 INFO L85 PathProgramCache]: Analyzing trace with hash -415348092, now seen corresponding path program 1 times [2022-11-16 10:57:36,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:36,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748258703] [2022-11-16 10:57:36,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:36,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:36,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:57:36,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:36,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748258703] [2022-11-16 10:57:36,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748258703] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:36,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:36,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:57:36,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817626448] [2022-11-16 10:57:36,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:36,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:57:36,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:36,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:57:36,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:57:36,320 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 448 [2022-11-16 10:57:36,321 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 278 transitions, 641 flow. Second operand has 3 states, 3 states have (on average 370.6666666666667) internal successors, (1112), 3 states have internal predecessors, (1112), 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) [2022-11-16 10:57:36,321 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:36,321 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 448 [2022-11-16 10:57:36,322 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:36,572 INFO L130 PetriNetUnfolder]: 157/1114 cut-off events. [2022-11-16 10:57:36,572 INFO L131 PetriNetUnfolder]: For 102/117 co-relation queries the response was YES. [2022-11-16 10:57:36,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1587 conditions, 1114 events. 157/1114 cut-off events. For 102/117 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6060 event pairs, 48 based on Foata normal form. 1/965 useless extension candidates. Maximal degree in co-relation 1497. Up to 256 conditions per place. [2022-11-16 10:57:36,582 INFO L137 encePairwiseOnDemand]: 442/448 looper letters, 46 selfloop transitions, 7 changer transitions 1/288 dead transitions. [2022-11-16 10:57:36,583 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 288 transitions, 779 flow [2022-11-16 10:57:36,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:57:36,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:57:36,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1147 transitions. [2022-11-16 10:57:36,587 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8534226190476191 [2022-11-16 10:57:36,587 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1147 transitions. [2022-11-16 10:57:36,587 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1147 transitions. [2022-11-16 10:57:36,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:36,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1147 transitions. [2022-11-16 10:57:36,593 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 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) [2022-11-16 10:57:36,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:36,597 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:36,597 INFO L175 Difference]: Start difference. First operand has 282 places, 278 transitions, 641 flow. Second operand 3 states and 1147 transitions. [2022-11-16 10:57:36,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 288 transitions, 779 flow [2022-11-16 10:57:36,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 288 transitions, 772 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-16 10:57:36,608 INFO L231 Difference]: Finished difference. Result has 267 places, 282 transitions, 688 flow [2022-11-16 10:57:36,609 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=688, PETRI_PLACES=267, PETRI_TRANSITIONS=282} [2022-11-16 10:57:36,610 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -26 predicate places. [2022-11-16 10:57:36,610 INFO L495 AbstractCegarLoop]: Abstraction has has 267 places, 282 transitions, 688 flow [2022-11-16 10:57:36,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.6666666666667) internal successors, (1112), 3 states have internal predecessors, (1112), 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) [2022-11-16 10:57:36,611 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:36,611 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:57:36,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 10:57:36,612 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)] === [2022-11-16 10:57:36,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:36,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1097855949, now seen corresponding path program 1 times [2022-11-16 10:57:36,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:36,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136062710] [2022-11-16 10:57:36,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:36,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:36,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:57:36,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:36,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136062710] [2022-11-16 10:57:36,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136062710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:36,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:36,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 10:57:36,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931018801] [2022-11-16 10:57:36,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:36,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:57:36,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:36,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:57:36,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:57:36,764 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 448 [2022-11-16 10:57:36,776 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 282 transitions, 688 flow. Second operand has 3 states, 3 states have (on average 401.3333333333333) internal successors, (1204), 3 states have internal predecessors, (1204), 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) [2022-11-16 10:57:36,776 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:36,776 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 448 [2022-11-16 10:57:36,777 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:36,970 INFO L130 PetriNetUnfolder]: 87/938 cut-off events. [2022-11-16 10:57:36,970 INFO L131 PetriNetUnfolder]: For 70/78 co-relation queries the response was YES. [2022-11-16 10:57:36,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1188 conditions, 938 events. 87/938 cut-off events. For 70/78 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4637 event pairs, 10 based on Foata normal form. 0/827 useless extension candidates. Maximal degree in co-relation 1103. Up to 64 conditions per place. [2022-11-16 10:57:36,978 INFO L137 encePairwiseOnDemand]: 440/448 looper letters, 13 selfloop transitions, 5 changer transitions 0/285 dead transitions. [2022-11-16 10:57:36,978 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 285 transitions, 730 flow [2022-11-16 10:57:36,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:57:36,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:57:36,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1221 transitions. [2022-11-16 10:57:36,981 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9084821428571429 [2022-11-16 10:57:36,981 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1221 transitions. [2022-11-16 10:57:36,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1221 transitions. [2022-11-16 10:57:36,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:36,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1221 transitions. [2022-11-16 10:57:36,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 407.0) internal successors, (1221), 3 states have internal predecessors, (1221), 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) [2022-11-16 10:57:36,988 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:36,989 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:36,989 INFO L175 Difference]: Start difference. First operand has 267 places, 282 transitions, 688 flow. Second operand 3 states and 1221 transitions. [2022-11-16 10:57:36,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 285 transitions, 730 flow [2022-11-16 10:57:36,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 285 transitions, 716 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:57:36,996 INFO L231 Difference]: Finished difference. Result has 268 places, 284 transitions, 708 flow [2022-11-16 10:57:36,997 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=708, PETRI_PLACES=268, PETRI_TRANSITIONS=284} [2022-11-16 10:57:36,999 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -25 predicate places. [2022-11-16 10:57:36,999 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 284 transitions, 708 flow [2022-11-16 10:57:37,000 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 401.3333333333333) internal successors, (1204), 3 states have internal predecessors, (1204), 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) [2022-11-16 10:57:37,000 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:37,000 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:57:37,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 10:57:37,001 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 10:57:37,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:37,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1604948751, now seen corresponding path program 1 times [2022-11-16 10:57:37,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:37,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290624113] [2022-11-16 10:57:37,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:37,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:37,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:57:37,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:37,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290624113] [2022-11-16 10:57:37,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290624113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:37,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:37,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:57:37,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938530119] [2022-11-16 10:57:37,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:37,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:57:37,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:37,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:57:37,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:57:37,097 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 448 [2022-11-16 10:57:37,108 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 284 transitions, 708 flow. Second operand has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 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) [2022-11-16 10:57:37,108 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:37,108 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 448 [2022-11-16 10:57:37,108 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:37,443 INFO L130 PetriNetUnfolder]: 210/1370 cut-off events. [2022-11-16 10:57:37,443 INFO L131 PetriNetUnfolder]: For 183/230 co-relation queries the response was YES. [2022-11-16 10:57:37,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2078 conditions, 1370 events. 210/1370 cut-off events. For 183/230 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 8075 event pairs, 60 based on Foata normal form. 2/1215 useless extension candidates. Maximal degree in co-relation 1987. Up to 310 conditions per place. [2022-11-16 10:57:37,456 INFO L137 encePairwiseOnDemand]: 440/448 looper letters, 56 selfloop transitions, 11 changer transitions 0/303 dead transitions. [2022-11-16 10:57:37,457 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 303 transitions, 911 flow [2022-11-16 10:57:37,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:57:37,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:57:37,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1152 transitions. [2022-11-16 10:57:37,460 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2022-11-16 10:57:37,460 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1152 transitions. [2022-11-16 10:57:37,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1152 transitions. [2022-11-16 10:57:37,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:37,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1152 transitions. [2022-11-16 10:57:37,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 384.0) internal successors, (1152), 3 states have internal predecessors, (1152), 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) [2022-11-16 10:57:37,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:37,489 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:37,490 INFO L175 Difference]: Start difference. First operand has 268 places, 284 transitions, 708 flow. Second operand 3 states and 1152 transitions. [2022-11-16 10:57:37,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 303 transitions, 911 flow [2022-11-16 10:57:37,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 303 transitions, 901 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:57:37,497 INFO L231 Difference]: Finished difference. Result has 270 places, 291 transitions, 784 flow [2022-11-16 10:57:37,498 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=698, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=784, PETRI_PLACES=270, PETRI_TRANSITIONS=291} [2022-11-16 10:57:37,499 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -23 predicate places. [2022-11-16 10:57:37,499 INFO L495 AbstractCegarLoop]: Abstraction has has 270 places, 291 transitions, 784 flow [2022-11-16 10:57:37,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 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) [2022-11-16 10:57:37,500 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:37,500 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:57:37,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 10:57:37,501 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread_usbErr2ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 10:57:37,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:37,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1492487681, now seen corresponding path program 1 times [2022-11-16 10:57:37,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:37,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886242617] [2022-11-16 10:57:37,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:37,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:37,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:37,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:57:37,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:37,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886242617] [2022-11-16 10:57:37,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886242617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:37,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:37,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:57:37,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846841245] [2022-11-16 10:57:37,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:37,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:57:37,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:37,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:57:37,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:57:37,595 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 448 [2022-11-16 10:57:37,597 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 291 transitions, 784 flow. Second operand has 3 states, 3 states have (on average 385.6666666666667) internal successors, (1157), 3 states have internal predecessors, (1157), 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) [2022-11-16 10:57:37,597 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:37,597 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 448 [2022-11-16 10:57:37,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:37,810 INFO L130 PetriNetUnfolder]: 110/1072 cut-off events. [2022-11-16 10:57:37,810 INFO L131 PetriNetUnfolder]: For 247/265 co-relation queries the response was YES. [2022-11-16 10:57:37,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1533 conditions, 1072 events. 110/1072 cut-off events. For 247/265 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 5851 event pairs, 11 based on Foata normal form. 1/958 useless extension candidates. Maximal degree in co-relation 1446. Up to 82 conditions per place. [2022-11-16 10:57:37,820 INFO L137 encePairwiseOnDemand]: 445/448 looper letters, 21 selfloop transitions, 2 changer transitions 0/290 dead transitions. [2022-11-16 10:57:37,821 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 290 transitions, 828 flow [2022-11-16 10:57:37,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:57:37,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:57:37,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1170 transitions. [2022-11-16 10:57:37,825 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8705357142857143 [2022-11-16 10:57:37,825 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1170 transitions. [2022-11-16 10:57:37,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1170 transitions. [2022-11-16 10:57:37,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:37,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1170 transitions. [2022-11-16 10:57:37,829 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 390.0) internal successors, (1170), 3 states have internal predecessors, (1170), 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) [2022-11-16 10:57:37,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:37,833 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:37,833 INFO L175 Difference]: Start difference. First operand has 270 places, 291 transitions, 784 flow. Second operand 3 states and 1170 transitions. [2022-11-16 10:57:37,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 290 transitions, 828 flow [2022-11-16 10:57:37,837 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 290 transitions, 806 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:57:37,841 INFO L231 Difference]: Finished difference. Result has 269 places, 290 transitions, 764 flow [2022-11-16 10:57:37,842 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=764, PETRI_PLACES=269, PETRI_TRANSITIONS=290} [2022-11-16 10:57:37,844 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -24 predicate places. [2022-11-16 10:57:37,844 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 290 transitions, 764 flow [2022-11-16 10:57:37,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 385.6666666666667) internal successors, (1157), 3 states have internal predecessors, (1157), 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) [2022-11-16 10:57:37,845 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:37,845 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:57:37,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 10:57:37,846 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 10:57:37,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:37,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1324855059, now seen corresponding path program 1 times [2022-11-16 10:57:37,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:37,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273622392] [2022-11-16 10:57:37,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:37,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:37,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:57:37,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:37,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273622392] [2022-11-16 10:57:37,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273622392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:37,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:37,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:57:37,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285855317] [2022-11-16 10:57:37,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:37,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:57:37,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:37,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:57:37,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:57:37,986 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 448 [2022-11-16 10:57:37,988 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 290 transitions, 764 flow. Second operand has 3 states, 3 states have (on average 371.6666666666667) internal successors, (1115), 3 states have internal predecessors, (1115), 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) [2022-11-16 10:57:37,988 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:37,988 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 448 [2022-11-16 10:57:37,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:38,433 INFO L130 PetriNetUnfolder]: 352/2121 cut-off events. [2022-11-16 10:57:38,434 INFO L131 PetriNetUnfolder]: For 606/703 co-relation queries the response was YES. [2022-11-16 10:57:38,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3378 conditions, 2121 events. 352/2121 cut-off events. For 606/703 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 14544 event pairs, 134 based on Foata normal form. 3/1906 useless extension candidates. Maximal degree in co-relation 2952. Up to 487 conditions per place. [2022-11-16 10:57:38,456 INFO L137 encePairwiseOnDemand]: 442/448 looper letters, 56 selfloop transitions, 9 changer transitions 1/301 dead transitions. [2022-11-16 10:57:38,456 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 301 transitions, 944 flow [2022-11-16 10:57:38,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:57:38,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:57:38,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1145 transitions. [2022-11-16 10:57:38,460 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8519345238095238 [2022-11-16 10:57:38,460 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1145 transitions. [2022-11-16 10:57:38,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1145 transitions. [2022-11-16 10:57:38,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:38,461 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1145 transitions. [2022-11-16 10:57:38,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 381.6666666666667) internal successors, (1145), 3 states have internal predecessors, (1145), 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) [2022-11-16 10:57:38,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:38,468 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:38,468 INFO L175 Difference]: Start difference. First operand has 269 places, 290 transitions, 764 flow. Second operand 3 states and 1145 transitions. [2022-11-16 10:57:38,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 301 transitions, 944 flow [2022-11-16 10:57:38,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 301 transitions, 940 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:57:38,476 INFO L231 Difference]: Finished difference. Result has 271 places, 294 transitions, 830 flow [2022-11-16 10:57:38,477 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=830, PETRI_PLACES=271, PETRI_TRANSITIONS=294} [2022-11-16 10:57:38,478 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -22 predicate places. [2022-11-16 10:57:38,478 INFO L495 AbstractCegarLoop]: Abstraction has has 271 places, 294 transitions, 830 flow [2022-11-16 10:57:38,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 371.6666666666667) internal successors, (1115), 3 states have internal predecessors, (1115), 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) [2022-11-16 10:57:38,479 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:38,479 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:57:38,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 10:57:38,480 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread_usbErr9ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 10:57:38,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:38,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1700908665, now seen corresponding path program 1 times [2022-11-16 10:57:38,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:38,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443649812] [2022-11-16 10:57:38,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:38,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:38,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:38,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:57:38,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:38,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443649812] [2022-11-16 10:57:38,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443649812] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:38,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:38,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:57:38,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279681733] [2022-11-16 10:57:38,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:38,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 10:57:38,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:38,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 10:57:38,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 10:57:38,668 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 448 [2022-11-16 10:57:38,670 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 294 transitions, 830 flow. Second operand has 5 states, 5 states have (on average 410.0) internal successors, (2050), 5 states have internal predecessors, (2050), 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) [2022-11-16 10:57:38,671 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:38,671 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 448 [2022-11-16 10:57:38,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:39,349 INFO L130 PetriNetUnfolder]: 355/3059 cut-off events. [2022-11-16 10:57:39,349 INFO L131 PetriNetUnfolder]: For 1181/1238 co-relation queries the response was YES. [2022-11-16 10:57:39,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4675 conditions, 3059 events. 355/3059 cut-off events. For 1181/1238 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 25215 event pairs, 33 based on Foata normal form. 3/2746 useless extension candidates. Maximal degree in co-relation 4587. Up to 271 conditions per place. [2022-11-16 10:57:39,376 INFO L137 encePairwiseOnDemand]: 441/448 looper letters, 26 selfloop transitions, 9 changer transitions 0/314 dead transitions. [2022-11-16 10:57:39,377 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 314 transitions, 951 flow [2022-11-16 10:57:39,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 10:57:39,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 10:57:39,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2892 transitions. [2022-11-16 10:57:39,385 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9221938775510204 [2022-11-16 10:57:39,386 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2892 transitions. [2022-11-16 10:57:39,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2892 transitions. [2022-11-16 10:57:39,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:39,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2892 transitions. [2022-11-16 10:57:39,394 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 413.14285714285717) internal successors, (2892), 7 states have internal predecessors, (2892), 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) [2022-11-16 10:57:39,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 448.0) internal successors, (3584), 8 states have internal predecessors, (3584), 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) [2022-11-16 10:57:39,404 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 448.0) internal successors, (3584), 8 states have internal predecessors, (3584), 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) [2022-11-16 10:57:39,404 INFO L175 Difference]: Start difference. First operand has 271 places, 294 transitions, 830 flow. Second operand 7 states and 2892 transitions. [2022-11-16 10:57:39,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 314 transitions, 951 flow [2022-11-16 10:57:39,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 314 transitions, 927 flow, removed 3 selfloop flow, removed 2 redundant places. [2022-11-16 10:57:39,415 INFO L231 Difference]: Finished difference. Result has 281 places, 302 transitions, 874 flow [2022-11-16 10:57:39,416 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=806, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=874, PETRI_PLACES=281, PETRI_TRANSITIONS=302} [2022-11-16 10:57:39,417 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -12 predicate places. [2022-11-16 10:57:39,418 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 302 transitions, 874 flow [2022-11-16 10:57:39,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 410.0) internal successors, (2050), 5 states have internal predecessors, (2050), 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) [2022-11-16 10:57:39,419 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:39,419 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:57:39,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 10:57:39,420 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 10:57:39,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:39,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1315848894, now seen corresponding path program 1 times [2022-11-16 10:57:39,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:39,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940095320] [2022-11-16 10:57:39,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:39,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:39,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:39,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:57:39,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:39,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940095320] [2022-11-16 10:57:39,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940095320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:39,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:39,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:57:39,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396286054] [2022-11-16 10:57:39,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:39,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 10:57:39,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:39,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 10:57:39,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 10:57:39,607 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 448 [2022-11-16 10:57:39,621 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 302 transitions, 874 flow. Second operand has 5 states, 5 states have (on average 409.2) internal successors, (2046), 5 states have internal predecessors, (2046), 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) [2022-11-16 10:57:39,621 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:39,622 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 448 [2022-11-16 10:57:39,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:40,581 INFO L130 PetriNetUnfolder]: 467/3954 cut-off events. [2022-11-16 10:57:40,581 INFO L131 PetriNetUnfolder]: For 1205/1281 co-relation queries the response was YES. [2022-11-16 10:57:40,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5950 conditions, 3954 events. 467/3954 cut-off events. For 1205/1281 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 32914 event pairs, 44 based on Foata normal form. 4/3541 useless extension candidates. Maximal degree in co-relation 5857. Up to 356 conditions per place. [2022-11-16 10:57:40,616 INFO L137 encePairwiseOnDemand]: 440/448 looper letters, 23 selfloop transitions, 8 changer transitions 0/317 dead transitions. [2022-11-16 10:57:40,616 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 317 transitions, 980 flow [2022-11-16 10:57:40,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 10:57:40,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-16 10:57:40,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2881 transitions. [2022-11-16 10:57:40,623 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9186862244897959 [2022-11-16 10:57:40,623 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2881 transitions. [2022-11-16 10:57:40,623 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2881 transitions. [2022-11-16 10:57:40,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:40,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2881 transitions. [2022-11-16 10:57:40,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 411.57142857142856) internal successors, (2881), 7 states have internal predecessors, (2881), 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) [2022-11-16 10:57:40,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 448.0) internal successors, (3584), 8 states have internal predecessors, (3584), 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) [2022-11-16 10:57:40,638 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 448.0) internal successors, (3584), 8 states have internal predecessors, (3584), 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) [2022-11-16 10:57:40,639 INFO L175 Difference]: Start difference. First operand has 281 places, 302 transitions, 874 flow. Second operand 7 states and 2881 transitions. [2022-11-16 10:57:40,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 317 transitions, 980 flow [2022-11-16 10:57:40,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 317 transitions, 980 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 10:57:40,648 INFO L231 Difference]: Finished difference. Result has 292 places, 309 transitions, 932 flow [2022-11-16 10:57:40,649 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=874, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=932, PETRI_PLACES=292, PETRI_TRANSITIONS=309} [2022-11-16 10:57:40,650 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -1 predicate places. [2022-11-16 10:57:40,650 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 309 transitions, 932 flow [2022-11-16 10:57:40,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 409.2) internal successors, (2046), 5 states have internal predecessors, (2046), 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) [2022-11-16 10:57:40,651 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:40,651 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:57:40,651 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 10:57:40,652 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 10:57:40,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:40,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1963462710, now seen corresponding path program 1 times [2022-11-16 10:57:40,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:40,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051275816] [2022-11-16 10:57:40,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:40,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:40,816 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:57:40,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:40,816 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051275816] [2022-11-16 10:57:40,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051275816] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:40,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:40,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:57:40,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241303538] [2022-11-16 10:57:40,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:40,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 10:57:40,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:40,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 10:57:40,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 10:57:40,821 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 448 [2022-11-16 10:57:40,824 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 309 transitions, 932 flow. Second operand has 5 states, 5 states have (on average 409.0) internal successors, (2045), 5 states have internal predecessors, (2045), 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) [2022-11-16 10:57:40,824 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:40,824 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 448 [2022-11-16 10:57:40,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:41,568 INFO L130 PetriNetUnfolder]: 344/2954 cut-off events. [2022-11-16 10:57:41,568 INFO L131 PetriNetUnfolder]: For 929/986 co-relation queries the response was YES. [2022-11-16 10:57:41,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4493 conditions, 2954 events. 344/2954 cut-off events. For 929/986 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 22458 event pairs, 33 based on Foata normal form. 6/2655 useless extension candidates. Maximal degree in co-relation 4395. Up to 267 conditions per place. [2022-11-16 10:57:41,593 INFO L137 encePairwiseOnDemand]: 441/448 looper letters, 22 selfloop transitions, 6 changer transitions 0/314 dead transitions. [2022-11-16 10:57:41,594 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 314 transitions, 1003 flow [2022-11-16 10:57:41,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:57:41,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 10:57:41,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2469 transitions. [2022-11-16 10:57:41,600 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9185267857142857 [2022-11-16 10:57:41,600 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2469 transitions. [2022-11-16 10:57:41,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2469 transitions. [2022-11-16 10:57:41,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:41,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2469 transitions. [2022-11-16 10:57:41,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 411.5) internal successors, (2469), 6 states have internal predecessors, (2469), 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) [2022-11-16 10:57:41,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 448.0) internal successors, (3136), 7 states have internal predecessors, (3136), 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) [2022-11-16 10:57:41,614 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 448.0) internal successors, (3136), 7 states have internal predecessors, (3136), 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) [2022-11-16 10:57:41,615 INFO L175 Difference]: Start difference. First operand has 292 places, 309 transitions, 932 flow. Second operand 6 states and 2469 transitions. [2022-11-16 10:57:41,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 314 transitions, 1003 flow [2022-11-16 10:57:41,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 314 transitions, 1003 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 10:57:41,624 INFO L231 Difference]: Finished difference. Result has 298 places, 309 transitions, 952 flow [2022-11-16 10:57:41,625 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=922, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=952, PETRI_PLACES=298, PETRI_TRANSITIONS=309} [2022-11-16 10:57:41,626 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, 5 predicate places. [2022-11-16 10:57:41,626 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 309 transitions, 952 flow [2022-11-16 10:57:41,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 409.0) internal successors, (2045), 5 states have internal predecessors, (2045), 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) [2022-11-16 10:57:41,628 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:41,628 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:57:41,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-16 10:57:41,629 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 10:57:41,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:41,629 INFO L85 PathProgramCache]: Analyzing trace with hash -805277782, now seen corresponding path program 1 times [2022-11-16 10:57:41,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:41,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759732124] [2022-11-16 10:57:41,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:41,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:41,846 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:57:41,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:41,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759732124] [2022-11-16 10:57:41,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759732124] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:41,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:41,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:57:41,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958498364] [2022-11-16 10:57:41,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:41,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 10:57:41,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:41,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 10:57:41,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 10:57:41,852 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 448 [2022-11-16 10:57:41,854 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 309 transitions, 952 flow. Second operand has 5 states, 5 states have (on average 409.8) internal successors, (2049), 5 states have internal predecessors, (2049), 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) [2022-11-16 10:57:41,854 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:41,855 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 448 [2022-11-16 10:57:41,855 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:42,411 INFO L130 PetriNetUnfolder]: 222/1968 cut-off events. [2022-11-16 10:57:42,412 INFO L131 PetriNetUnfolder]: For 638/676 co-relation queries the response was YES. [2022-11-16 10:57:42,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3029 conditions, 1968 events. 222/1968 cut-off events. For 638/676 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 13239 event pairs, 22 based on Foata normal form. 4/1776 useless extension candidates. Maximal degree in co-relation 2928. Up to 178 conditions per place. [2022-11-16 10:57:42,431 INFO L137 encePairwiseOnDemand]: 443/448 looper letters, 20 selfloop transitions, 4 changer transitions 1/309 dead transitions. [2022-11-16 10:57:42,431 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 309 transitions, 992 flow [2022-11-16 10:57:42,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:57:42,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 10:57:42,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2469 transitions. [2022-11-16 10:57:42,439 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9185267857142857 [2022-11-16 10:57:42,439 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2469 transitions. [2022-11-16 10:57:42,439 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2469 transitions. [2022-11-16 10:57:42,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:42,442 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2469 transitions. [2022-11-16 10:57:42,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 411.5) internal successors, (2469), 6 states have internal predecessors, (2469), 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) [2022-11-16 10:57:42,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 448.0) internal successors, (3136), 7 states have internal predecessors, (3136), 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) [2022-11-16 10:57:42,455 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 448.0) internal successors, (3136), 7 states have internal predecessors, (3136), 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) [2022-11-16 10:57:42,456 INFO L175 Difference]: Start difference. First operand has 298 places, 309 transitions, 952 flow. Second operand 6 states and 2469 transitions. [2022-11-16 10:57:42,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 309 transitions, 992 flow [2022-11-16 10:57:42,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 309 transitions, 970 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-11-16 10:57:42,467 INFO L231 Difference]: Finished difference. Result has 298 places, 306 transitions, 921 flow [2022-11-16 10:57:42,468 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=909, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=921, PETRI_PLACES=298, PETRI_TRANSITIONS=306} [2022-11-16 10:57:42,469 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, 5 predicate places. [2022-11-16 10:57:42,469 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 306 transitions, 921 flow [2022-11-16 10:57:42,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 409.8) internal successors, (2049), 5 states have internal predecessors, (2049), 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) [2022-11-16 10:57:42,470 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:42,470 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:57:42,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-16 10:57:42,471 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 10:57:42,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:42,472 INFO L85 PathProgramCache]: Analyzing trace with hash -999768131, now seen corresponding path program 1 times [2022-11-16 10:57:42,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:42,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617772284] [2022-11-16 10:57:42,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:42,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:43,210 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 10:57:43,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:43,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617772284] [2022-11-16 10:57:43,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617772284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:43,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:43,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 10:57:43,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241735140] [2022-11-16 10:57:43,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:43,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 10:57:43,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:43,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 10:57:43,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-16 10:57:43,220 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 394 out of 448 [2022-11-16 10:57:43,223 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 306 transitions, 921 flow. Second operand has 6 states, 6 states have (on average 395.8333333333333) internal successors, (2375), 6 states have internal predecessors, (2375), 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) [2022-11-16 10:57:43,223 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:43,223 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 394 of 448 [2022-11-16 10:57:43,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:45,508 INFO L130 PetriNetUnfolder]: 1516/11707 cut-off events. [2022-11-16 10:57:45,508 INFO L131 PetriNetUnfolder]: For 3967/4327 co-relation queries the response was YES. [2022-11-16 10:57:45,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18394 conditions, 11707 events. 1516/11707 cut-off events. For 3967/4327 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 118859 event pairs, 108 based on Foata normal form. 8/10319 useless extension candidates. Maximal degree in co-relation 10584. Up to 1269 conditions per place. [2022-11-16 10:57:45,607 INFO L137 encePairwiseOnDemand]: 443/448 looper letters, 43 selfloop transitions, 4 changer transitions 0/333 dead transitions. [2022-11-16 10:57:45,607 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 333 transitions, 1077 flow [2022-11-16 10:57:45,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 10:57:45,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-16 10:57:45,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2412 transitions. [2022-11-16 10:57:45,613 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8973214285714286 [2022-11-16 10:57:45,614 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2412 transitions. [2022-11-16 10:57:45,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2412 transitions. [2022-11-16 10:57:45,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:45,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2412 transitions. [2022-11-16 10:57:45,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 402.0) internal successors, (2412), 6 states have internal predecessors, (2412), 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) [2022-11-16 10:57:45,627 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 448.0) internal successors, (3136), 7 states have internal predecessors, (3136), 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) [2022-11-16 10:57:45,628 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 448.0) internal successors, (3136), 7 states have internal predecessors, (3136), 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) [2022-11-16 10:57:45,629 INFO L175 Difference]: Start difference. First operand has 298 places, 306 transitions, 921 flow. Second operand 6 states and 2412 transitions. [2022-11-16 10:57:45,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 333 transitions, 1077 flow [2022-11-16 10:57:45,639 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 333 transitions, 1065 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-11-16 10:57:45,644 INFO L231 Difference]: Finished difference. Result has 303 places, 309 transitions, 938 flow [2022-11-16 10:57:45,644 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=907, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=938, PETRI_PLACES=303, PETRI_TRANSITIONS=309} [2022-11-16 10:57:45,645 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, 10 predicate places. [2022-11-16 10:57:45,645 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 309 transitions, 938 flow [2022-11-16 10:57:45,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 395.8333333333333) internal successors, (2375), 6 states have internal predecessors, (2375), 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) [2022-11-16 10:57:45,647 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:45,647 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:57:45,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-16 10:57:45,648 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread_usbThread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 10:57:45,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:45,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1520558459, now seen corresponding path program 1 times [2022-11-16 10:57:45,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:45,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219186945] [2022-11-16 10:57:45,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:45,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:45,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:45,793 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 10:57:45,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:45,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219186945] [2022-11-16 10:57:45,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219186945] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:45,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:45,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 10:57:45,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603982974] [2022-11-16 10:57:45,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:45,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:57:45,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:45,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:57:45,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:57:45,798 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 448 [2022-11-16 10:57:45,800 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 309 transitions, 938 flow. Second operand has 3 states, 3 states have (on average 402.3333333333333) internal successors, (1207), 3 states have internal predecessors, (1207), 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) [2022-11-16 10:57:45,800 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:45,800 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 448 [2022-11-16 10:57:45,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:45,917 INFO L130 PetriNetUnfolder]: 28/485 cut-off events. [2022-11-16 10:57:45,917 INFO L131 PetriNetUnfolder]: For 56/56 co-relation queries the response was YES. [2022-11-16 10:57:45,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 679 conditions, 485 events. 28/485 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 757 event pairs, 0 based on Foata normal form. 2/449 useless extension candidates. Maximal degree in co-relation 583. Up to 24 conditions per place. [2022-11-16 10:57:45,922 INFO L137 encePairwiseOnDemand]: 443/448 looper letters, 11 selfloop transitions, 2 changer transitions 49/274 dead transitions. [2022-11-16 10:57:45,923 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 274 transitions, 776 flow [2022-11-16 10:57:45,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:57:45,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:57:45,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1217 transitions. [2022-11-16 10:57:45,927 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9055059523809523 [2022-11-16 10:57:45,927 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1217 transitions. [2022-11-16 10:57:45,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1217 transitions. [2022-11-16 10:57:45,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:45,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1217 transitions. [2022-11-16 10:57:45,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 405.6666666666667) internal successors, (1217), 3 states have internal predecessors, (1217), 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) [2022-11-16 10:57:45,934 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:45,935 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:45,935 INFO L175 Difference]: Start difference. First operand has 303 places, 309 transitions, 938 flow. Second operand 3 states and 1217 transitions. [2022-11-16 10:57:45,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 274 transitions, 776 flow [2022-11-16 10:57:45,939 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 274 transitions, 714 flow, removed 13 selfloop flow, removed 10 redundant places. [2022-11-16 10:57:45,943 INFO L231 Difference]: Finished difference. Result has 289 places, 225 transitions, 573 flow [2022-11-16 10:57:45,944 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=573, PETRI_PLACES=289, PETRI_TRANSITIONS=225} [2022-11-16 10:57:45,944 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -4 predicate places. [2022-11-16 10:57:45,945 INFO L495 AbstractCegarLoop]: Abstraction has has 289 places, 225 transitions, 573 flow [2022-11-16 10:57:45,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 402.3333333333333) internal successors, (1207), 3 states have internal predecessors, (1207), 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) [2022-11-16 10:57:45,945 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:45,946 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:57:45,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-16 10:57:45,946 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread_usbErr5ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 10:57:45,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:45,947 INFO L85 PathProgramCache]: Analyzing trace with hash -587346447, now seen corresponding path program 1 times [2022-11-16 10:57:45,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:45,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981936803] [2022-11-16 10:57:45,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:45,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:45,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:46,066 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 10:57:46,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:46,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981936803] [2022-11-16 10:57:46,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981936803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:46,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:46,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:57:46,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609911544] [2022-11-16 10:57:46,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:46,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:57:46,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:46,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:57:46,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:57:46,071 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 448 [2022-11-16 10:57:46,072 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 225 transitions, 573 flow. Second operand has 3 states, 3 states have (on average 387.6666666666667) internal successors, (1163), 3 states have internal predecessors, (1163), 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) [2022-11-16 10:57:46,073 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:46,073 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 448 [2022-11-16 10:57:46,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:46,356 INFO L130 PetriNetUnfolder]: 28/414 cut-off events. [2022-11-16 10:57:46,357 INFO L131 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2022-11-16 10:57:46,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 581 conditions, 414 events. 28/414 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 516 event pairs, 0 based on Foata normal form. 0/381 useless extension candidates. Maximal degree in co-relation 486. Up to 50 conditions per place. [2022-11-16 10:57:46,361 INFO L137 encePairwiseOnDemand]: 445/448 looper letters, 19 selfloop transitions, 2 changer transitions 0/224 dead transitions. [2022-11-16 10:57:46,362 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 224 transitions, 613 flow [2022-11-16 10:57:46,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:57:46,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:57:46,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1168 transitions. [2022-11-16 10:57:46,366 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8690476190476191 [2022-11-16 10:57:46,367 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1168 transitions. [2022-11-16 10:57:46,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1168 transitions. [2022-11-16 10:57:46,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:46,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1168 transitions. [2022-11-16 10:57:46,372 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 389.3333333333333) internal successors, (1168), 3 states have internal predecessors, (1168), 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) [2022-11-16 10:57:46,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:46,377 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:46,377 INFO L175 Difference]: Start difference. First operand has 289 places, 225 transitions, 573 flow. Second operand 3 states and 1168 transitions. [2022-11-16 10:57:46,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 224 transitions, 613 flow [2022-11-16 10:57:46,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 224 transitions, 589 flow, removed 4 selfloop flow, removed 9 redundant places. [2022-11-16 10:57:46,385 INFO L231 Difference]: Finished difference. Result has 233 places, 224 transitions, 551 flow [2022-11-16 10:57:46,385 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=551, PETRI_PLACES=233, PETRI_TRANSITIONS=224} [2022-11-16 10:57:46,386 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -60 predicate places. [2022-11-16 10:57:46,386 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 224 transitions, 551 flow [2022-11-16 10:57:46,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 387.6666666666667) internal successors, (1163), 3 states have internal predecessors, (1163), 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) [2022-11-16 10:57:46,387 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 10:57:46,388 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:57:46,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-16 10:57:46,388 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread_usbErr6ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-16 10:57:46,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 10:57:46,389 INFO L85 PathProgramCache]: Analyzing trace with hash 1805988744, now seen corresponding path program 1 times [2022-11-16 10:57:46,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 10:57:46,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850535468] [2022-11-16 10:57:46,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 10:57:46,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 10:57:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 10:57:46,530 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-16 10:57:46,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 10:57:46,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850535468] [2022-11-16 10:57:46,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850535468] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 10:57:46,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 10:57:46,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 10:57:46,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123685942] [2022-11-16 10:57:46,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 10:57:46,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 10:57:46,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 10:57:46,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 10:57:46,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 10:57:46,537 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 448 [2022-11-16 10:57:46,539 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 224 transitions, 551 flow. Second operand has 3 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 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) [2022-11-16 10:57:46,539 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 10:57:46,540 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 448 [2022-11-16 10:57:46,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 10:57:46,662 INFO L130 PetriNetUnfolder]: 28/413 cut-off events. [2022-11-16 10:57:46,663 INFO L131 PetriNetUnfolder]: For 9/13 co-relation queries the response was YES. [2022-11-16 10:57:46,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 413 events. 28/413 cut-off events. For 9/13 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 513 event pairs, 0 based on Foata normal form. 0/381 useless extension candidates. Maximal degree in co-relation 437. Up to 24 conditions per place. [2022-11-16 10:57:46,667 INFO L137 encePairwiseOnDemand]: 445/448 looper letters, 0 selfloop transitions, 0 changer transitions 223/223 dead transitions. [2022-11-16 10:57:46,667 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 223 transitions, 585 flow [2022-11-16 10:57:46,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 10:57:46,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 10:57:46,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1123 transitions. [2022-11-16 10:57:46,672 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8355654761904762 [2022-11-16 10:57:46,672 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1123 transitions. [2022-11-16 10:57:46,672 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1123 transitions. [2022-11-16 10:57:46,675 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 10:57:46,675 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1123 transitions. [2022-11-16 10:57:46,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 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) [2022-11-16 10:57:46,686 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:46,687 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 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) [2022-11-16 10:57:46,687 INFO L175 Difference]: Start difference. First operand has 233 places, 224 transitions, 551 flow. Second operand 3 states and 1123 transitions. [2022-11-16 10:57:46,688 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 223 transitions, 585 flow [2022-11-16 10:57:46,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 223 transitions, 581 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 10:57:46,693 INFO L231 Difference]: Finished difference. Result has 232 places, 0 transitions, 0 flow [2022-11-16 10:57:46,694 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=545, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=232, PETRI_TRANSITIONS=0} [2022-11-16 10:57:46,695 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -61 predicate places. [2022-11-16 10:57:46,695 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 0 transitions, 0 flow [2022-11-16 10:57:46,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 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) [2022-11-16 10:57:46,699 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (35 of 36 remaining) [2022-11-16 10:57:46,700 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2022-11-16 10:57:46,700 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2022-11-16 10:57:46,700 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2022-11-16 10:57:46,701 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2022-11-16 10:57:46,701 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2022-11-16 10:57:46,701 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2022-11-16 10:57:46,702 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2022-11-16 10:57:46,702 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2022-11-16 10:57:46,702 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 36 remaining) [2022-11-16 10:57:46,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2022-11-16 10:57:46,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2022-11-16 10:57:46,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2022-11-16 10:57:46,703 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2022-11-16 10:57:46,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2022-11-16 10:57:46,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2022-11-16 10:57:46,704 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2022-11-16 10:57:46,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2022-11-16 10:57:46,705 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2022-11-16 10:57:46,706 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2022-11-16 10:57:46,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2022-11-16 10:57:46,707 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 36 remaining) [2022-11-16 10:57:46,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2022-11-16 10:57:46,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2022-11-16 10:57:46,708 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2022-11-16 10:57:46,709 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2022-11-16 10:57:46,709 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2022-11-16 10:57:46,709 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2022-11-16 10:57:46,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2022-11-16 10:57:46,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2022-11-16 10:57:46,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2022-11-16 10:57:46,710 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2022-11-16 10:57:46,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2022-11-16 10:57:46,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2022-11-16 10:57:46,711 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2022-11-16 10:57:46,712 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 36 remaining) [2022-11-16 10:57:46,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-16 10:57:46,712 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 10:57:46,720 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 10:57:46,720 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 10:57:46,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 10:57:46 BasicIcfg [2022-11-16 10:57:46,731 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 10:57:46,732 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 10:57:46,732 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 10:57:46,733 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 10:57:46,733 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 10:57:31" (3/4) ... [2022-11-16 10:57:46,737 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 10:57:46,744 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_ath9k [2022-11-16 10:57:46,745 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_usb [2022-11-16 10:57:46,752 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-16 10:57:46,753 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 10:57:46,753 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 10:57:46,753 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 10:57:46,814 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c753de-e18d-4008-bca5-abc50e6bcb07/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 10:57:46,814 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 10:57:46,816 INFO L158 Benchmark]: Toolchain (without parser) took 17536.50ms. Allocated memory was 144.7MB in the beginning and 882.9MB in the end (delta: 738.2MB). Free memory was 103.9MB in the beginning and 648.3MB in the end (delta: -544.5MB). Peak memory consumption was 194.3MB. Max. memory is 16.1GB. [2022-11-16 10:57:46,816 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 144.7MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 10:57:46,817 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1182.98ms. Allocated memory is still 144.7MB. Free memory was 103.6MB in the beginning and 74.2MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-16 10:57:46,817 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.33ms. Allocated memory is still 144.7MB. Free memory was 74.2MB in the beginning and 70.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 10:57:46,817 INFO L158 Benchmark]: Boogie Preprocessor took 49.12ms. Allocated memory is still 144.7MB. Free memory was 70.0MB in the beginning and 67.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 10:57:46,818 INFO L158 Benchmark]: RCFGBuilder took 893.76ms. Allocated memory is still 144.7MB. Free memory was 67.2MB in the beginning and 102.9MB in the end (delta: -35.7MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2022-11-16 10:57:46,818 INFO L158 Benchmark]: TraceAbstraction took 15221.04ms. Allocated memory was 144.7MB in the beginning and 882.9MB in the end (delta: 738.2MB). Free memory was 102.7MB in the beginning and 651.5MB in the end (delta: -548.8MB). Peak memory consumption was 189.4MB. Max. memory is 16.1GB. [2022-11-16 10:57:46,819 INFO L158 Benchmark]: Witness Printer took 82.54ms. Allocated memory is still 882.9MB. Free memory was 651.5MB in the beginning and 648.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 10:57:46,820 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 144.7MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1182.98ms. Allocated memory is still 144.7MB. Free memory was 103.6MB in the beginning and 74.2MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.33ms. Allocated memory is still 144.7MB. Free memory was 74.2MB in the beginning and 70.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.12ms. Allocated memory is still 144.7MB. Free memory was 70.0MB in the beginning and 67.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 893.76ms. Allocated memory is still 144.7MB. Free memory was 67.2MB in the beginning and 102.9MB in the end (delta: -35.7MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * TraceAbstraction took 15221.04ms. Allocated memory was 144.7MB in the beginning and 882.9MB in the end (delta: 738.2MB). Free memory was 102.7MB in the beginning and 651.5MB in the end (delta: -548.8MB). Peak memory consumption was 189.4MB. Max. memory is 16.1GB. * Witness Printer took 82.54ms. Allocated memory is still 882.9MB. Free memory was 651.5MB in the beginning and 648.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 15.0s, OverallIterations: 19, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 173 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 173 mSDsluCounter, 410 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 75 mSDsCounter, 76 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 798 IncrementalHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 76 mSolverCounterUnsat, 335 mSDtfsCounter, 798 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=952occurred in iteration=14, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 1741 NumberOfCodeBlocks, 1741 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1722 ConstructedInterpolants, 0 QuantifiedInterpolants, 2032 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 41/41 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! [2022-11-16 10:57:46,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25c753de-e18d-4008-bca5-abc50e6bcb07/bin/uautomizer-tPACEb0tL8/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