./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 0e0057cc 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_85aa50bd-cfb8-429b-be35-522ef56242e2/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa50bd-cfb8-429b-be35-522ef56242e2/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa50bd-cfb8-429b-be35-522ef56242e2/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa50bd-cfb8-429b-be35-522ef56242e2/bin/uautomizer-verify-VRDe98Ueme/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_85aa50bd-cfb8-429b-be35-522ef56242e2/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa50bd-cfb8-429b-be35-522ef56242e2/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --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 --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:41:20,584 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:41:20,706 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa50bd-cfb8-429b-be35-522ef56242e2/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 10:41:20,713 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:41:20,715 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:41:20,755 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:41:20,756 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:41:20,757 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:41:20,758 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:41:20,763 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:41:20,765 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:41:20,765 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:41:20,766 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:41:20,768 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:41:20,768 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:41:20,769 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:41:20,769 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:41:20,770 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:41:20,770 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:41:20,771 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:41:20,771 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:41:20,772 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:41:20,773 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 10:41:20,773 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:41:20,774 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:41:20,774 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:41:20,775 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:41:20,776 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:41:20,776 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:41:20,777 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:41:20,778 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:41:20,779 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:41:20,779 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:41:20,779 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:41:20,780 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:41:20,780 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:41:20,780 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:41:20,781 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:41:20,781 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:41:20,781 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:41:20,782 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:41:20,782 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_85aa50bd-cfb8-429b-be35-522ef56242e2/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa50bd-cfb8-429b-be35-522ef56242e2/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d [2023-11-26 10:41:21,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:41:21,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:41:21,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:41:21,144 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:41:21,145 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:41:21,146 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa50bd-cfb8-429b-be35-522ef56242e2/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2023-11-26 10:41:24,277 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:41:24,736 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:41:24,737 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa50bd-cfb8-429b-be35-522ef56242e2/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2023-11-26 10:41:24,764 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa50bd-cfb8-429b-be35-522ef56242e2/bin/uautomizer-verify-VRDe98Ueme/data/d148e0430/528532b610e047959075e7095f627a9b/FLAG53c37197b [2023-11-26 10:41:24,781 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa50bd-cfb8-429b-be35-522ef56242e2/bin/uautomizer-verify-VRDe98Ueme/data/d148e0430/528532b610e047959075e7095f627a9b [2023-11-26 10:41:24,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:41:24,802 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:41:24,805 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:41:24,805 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:41:24,810 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:41:24,811 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:41:24" (1/1) ... [2023-11-26 10:41:24,812 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c0bcf8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:24, skipping insertion in model container [2023-11-26 10:41:24,813 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:41:24" (1/1) ... [2023-11-26 10:41:24,877 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:41:25,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:41:25,738 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:41:25,864 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:41:26,035 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:41:26,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26 WrapperNode [2023-11-26 10:41:26,036 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:41:26,037 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:41:26,038 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:41:26,038 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:41:26,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26" (1/1) ... [2023-11-26 10:41:26,164 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26" (1/1) ... [2023-11-26 10:41:26,217 INFO L138 Inliner]: procedures = 487, calls = 45, calls flagged for inlining = 16, calls inlined = 21, statements flattened = 289 [2023-11-26 10:41:26,217 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:41:26,218 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:41:26,218 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:41:26,218 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:41:26,232 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26" (1/1) ... [2023-11-26 10:41:26,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26" (1/1) ... [2023-11-26 10:41:26,250 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26" (1/1) ... [2023-11-26 10:41:26,253 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26" (1/1) ... [2023-11-26 10:41:26,279 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26" (1/1) ... [2023-11-26 10:41:26,284 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26" (1/1) ... [2023-11-26 10:41:26,296 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26" (1/1) ... [2023-11-26 10:41:26,299 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26" (1/1) ... [2023-11-26 10:41:26,316 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:41:26,317 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:41:26,317 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:41:26,317 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:41:26,318 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26" (1/1) ... [2023-11-26 10:41:26,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:41:26,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa50bd-cfb8-429b-be35-522ef56242e2/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:41:26,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa50bd-cfb8-429b-be35-522ef56242e2/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:41:26,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa50bd-cfb8-429b-be35-522ef56242e2/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:41:26,417 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2023-11-26 10:41:26,418 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2023-11-26 10:41:26,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:41:26,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 10:41:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2023-11-26 10:41:26,419 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2023-11-26 10:41:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 10:41:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:41:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-26 10:41:26,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:41:26,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:41:26,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:41:26,420 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 10:41:26,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 10:41:26,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 10:41:26,424 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 10:41:26,828 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:41:26,830 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:41:27,334 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:41:27,367 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:41:27,367 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 10:41:27,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:27 BoogieIcfgContainer [2023-11-26 10:41:27,369 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:41:27,371 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:41:27,371 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:41:27,374 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:41:27,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:41:24" (1/3) ... [2023-11-26 10:41:27,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c001fd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:41:27, skipping insertion in model container [2023-11-26 10:41:27,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:41:26" (2/3) ... [2023-11-26 10:41:27,376 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c001fd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:41:27, skipping insertion in model container [2023-11-26 10:41:27,376 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:27" (3/3) ... [2023-11-26 10:41:27,377 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2023-11-26 10:41:27,387 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 10:41:27,399 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:41:27,399 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-11-26 10:41:27,399 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 10:41:27,542 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-11-26 10:41:27,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 440 places, 478 transitions, 983 flow [2023-11-26 10:41:27,936 INFO L124 PetriNetUnfolderBase]: 41/489 cut-off events. [2023-11-26 10:41:27,937 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-26 10:41:27,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 500 conditions, 489 events. 41/489 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1436 event pairs, 0 based on Foata normal form. 0/413 useless extension candidates. Maximal degree in co-relation 326. Up to 11 conditions per place. [2023-11-26 10:41:27,950 INFO L82 GeneralOperation]: Start removeDead. Operand has 440 places, 478 transitions, 983 flow [2023-11-26 10:41:27,963 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 310 places, 333 transitions, 682 flow [2023-11-26 10:41:27,980 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:41:27,989 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=LoopHeads, 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;@26dc89d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:41:27,989 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2023-11-26 10:41:27,996 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:41:27,996 INFO L124 PetriNetUnfolderBase]: 0/29 cut-off events. [2023-11-26 10:41:27,997 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:41:27,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:41:27,998 INFO L208 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] [2023-11-26 10:41:27,999 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)] === [2023-11-26 10:41:28,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:28,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1910435055, now seen corresponding path program 1 times [2023-11-26 10:41:28,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:28,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546228587] [2023-11-26 10:41:28,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:28,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:28,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:28,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:28,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546228587] [2023-11-26 10:41:28,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546228587] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:28,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:28,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:41:28,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137431844] [2023-11-26 10:41:28,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:28,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:28,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:28,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:28,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:28,701 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 478 [2023-11-26 10:41:28,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 333 transitions, 682 flow. Second operand has 3 states, 3 states have (on average 417.3333333333333) internal successors, (1252), 3 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:28,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:41:28,709 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 478 [2023-11-26 10:41:28,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:41:29,032 INFO L124 PetriNetUnfolderBase]: 82/985 cut-off events. [2023-11-26 10:41:29,033 INFO L125 PetriNetUnfolderBase]: For 27/35 co-relation queries the response was YES. [2023-11-26 10:41:29,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1131 conditions, 985 events. 82/985 cut-off events. For 27/35 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 5104 event pairs, 48 based on Foata normal form. 74/925 useless extension candidates. Maximal degree in co-relation 804. Up to 125 conditions per place. [2023-11-26 10:41:29,047 INFO L140 encePairwiseOnDemand]: 459/478 looper letters, 22 selfloop transitions, 2 changer transitions 6/298 dead transitions. [2023-11-26 10:41:29,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 298 transitions, 660 flow [2023-11-26 10:41:29,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:29,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:41:29,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1289 transitions. [2023-11-26 10:41:29,072 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.898884239888424 [2023-11-26 10:41:29,073 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1289 transitions. [2023-11-26 10:41:29,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1289 transitions. [2023-11-26 10:41:29,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:41:29,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1289 transitions. [2023-11-26 10:41:29,090 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 429.6666666666667) internal successors, (1289), 3 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:29,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:29,104 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:29,106 INFO L175 Difference]: Start difference. First operand has 310 places, 333 transitions, 682 flow. Second operand 3 states and 1289 transitions. [2023-11-26 10:41:29,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 298 transitions, 660 flow [2023-11-26 10:41:29,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 298 transitions, 656 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:41:29,127 INFO L231 Difference]: Finished difference. Result has 291 places, 292 transitions, 600 flow [2023-11-26 10:41:29,130 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=298, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=296, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=600, PETRI_PLACES=291, PETRI_TRANSITIONS=292} [2023-11-26 10:41:29,136 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -19 predicate places. [2023-11-26 10:41:29,137 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 292 transitions, 600 flow [2023-11-26 10:41:29,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 417.3333333333333) internal successors, (1252), 3 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:29,138 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:41:29,138 INFO L208 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] [2023-11-26 10:41:29,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:41:29,140 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)] === [2023-11-26 10:41:29,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:29,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1158336408, now seen corresponding path program 1 times [2023-11-26 10:41:29,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:29,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740566564] [2023-11-26 10:41:29,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:29,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:29,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:29,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:29,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740566564] [2023-11-26 10:41:29,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740566564] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:29,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:29,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:41:29,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183305002] [2023-11-26 10:41:29,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:29,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:29,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:29,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:29,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:29,398 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 406 out of 478 [2023-11-26 10:41:29,401 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 292 transitions, 600 flow. Second operand has 3 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) [2023-11-26 10:41:29,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:41:29,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 406 of 478 [2023-11-26 10:41:29,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:41:29,700 INFO L124 PetriNetUnfolderBase]: 83/946 cut-off events. [2023-11-26 10:41:29,701 INFO L125 PetriNetUnfolderBase]: For 19/24 co-relation queries the response was YES. [2023-11-26 10:41:29,706 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1110 conditions, 946 events. 83/946 cut-off events. For 19/24 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4773 event pairs, 21 based on Foata normal form. 1/835 useless extension candidates. Maximal degree in co-relation 1072. Up to 112 conditions per place. [2023-11-26 10:41:29,711 INFO L140 encePairwiseOnDemand]: 458/478 looper letters, 26 selfloop transitions, 14 changer transitions 0/301 dead transitions. [2023-11-26 10:41:29,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 301 transitions, 699 flow [2023-11-26 10:41:29,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:29,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:41:29,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1264 transitions. [2023-11-26 10:41:29,718 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8814504881450488 [2023-11-26 10:41:29,718 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1264 transitions. [2023-11-26 10:41:29,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1264 transitions. [2023-11-26 10:41:29,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:41:29,720 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1264 transitions. [2023-11-26 10:41:29,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 421.3333333333333) internal successors, (1264), 3 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:29,731 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:29,733 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:29,733 INFO L175 Difference]: Start difference. First operand has 291 places, 292 transitions, 600 flow. Second operand 3 states and 1264 transitions. [2023-11-26 10:41:29,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 301 transitions, 699 flow [2023-11-26 10:41:29,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 301 transitions, 695 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:41:29,746 INFO L231 Difference]: Finished difference. Result has 284 places, 298 transitions, 688 flow [2023-11-26 10:41:29,746 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=590, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=688, PETRI_PLACES=284, PETRI_TRANSITIONS=298} [2023-11-26 10:41:29,747 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -26 predicate places. [2023-11-26 10:41:29,748 INFO L495 AbstractCegarLoop]: Abstraction has has 284 places, 298 transitions, 688 flow [2023-11-26 10:41:29,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2023-11-26 10:41:29,750 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:41:29,751 INFO L208 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] [2023-11-26 10:41:29,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:41:29,751 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)] === [2023-11-26 10:41:29,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:29,752 INFO L85 PathProgramCache]: Analyzing trace with hash 2025327433, now seen corresponding path program 1 times [2023-11-26 10:41:29,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:29,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227505691] [2023-11-26 10:41:29,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:29,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:29,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:29,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:29,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227505691] [2023-11-26 10:41:29,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227505691] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:29,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:29,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:41:29,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486614865] [2023-11-26 10:41:29,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:29,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:29,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:29,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:29,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:30,008 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 478 [2023-11-26 10:41:30,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 298 transitions, 688 flow. Second operand has 3 states, 3 states have (on average 418.0) internal successors, (1254), 3 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:30,011 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:41:30,011 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 478 [2023-11-26 10:41:30,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:41:30,308 INFO L124 PetriNetUnfolderBase]: 137/1455 cut-off events. [2023-11-26 10:41:30,309 INFO L125 PetriNetUnfolderBase]: For 272/303 co-relation queries the response was YES. [2023-11-26 10:41:30,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1908 conditions, 1455 events. 137/1455 cut-off events. For 272/303 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 9181 event pairs, 61 based on Foata normal form. 0/1284 useless extension candidates. Maximal degree in co-relation 1470. Up to 203 conditions per place. [2023-11-26 10:41:30,328 INFO L140 encePairwiseOnDemand]: 475/478 looper letters, 28 selfloop transitions, 2 changer transitions 0/297 dead transitions. [2023-11-26 10:41:30,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 297 transitions, 746 flow [2023-11-26 10:41:30,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:30,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:41:30,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1273 transitions. [2023-11-26 10:41:30,333 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8877266387726639 [2023-11-26 10:41:30,333 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1273 transitions. [2023-11-26 10:41:30,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1273 transitions. [2023-11-26 10:41:30,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:41:30,335 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1273 transitions. [2023-11-26 10:41:30,339 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:30,344 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:30,346 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:30,346 INFO L175 Difference]: Start difference. First operand has 284 places, 298 transitions, 688 flow. Second operand 3 states and 1273 transitions. [2023-11-26 10:41:30,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 297 transitions, 746 flow [2023-11-26 10:41:30,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 297 transitions, 718 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:41:30,359 INFO L231 Difference]: Finished difference. Result has 283 places, 297 transitions, 662 flow [2023-11-26 10:41:30,360 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=658, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=662, PETRI_PLACES=283, PETRI_TRANSITIONS=297} [2023-11-26 10:41:30,362 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -27 predicate places. [2023-11-26 10:41:30,362 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 297 transitions, 662 flow [2023-11-26 10:41:30,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 418.0) internal successors, (1254), 3 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:30,364 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:41:30,364 INFO L208 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] [2023-11-26 10:41:30,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:41:30,364 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)] === [2023-11-26 10:41:30,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:30,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1740343893, now seen corresponding path program 1 times [2023-11-26 10:41:30,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:30,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057633944] [2023-11-26 10:41:30,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:30,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:30,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:30,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:30,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057633944] [2023-11-26 10:41:30,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057633944] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:30,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:30,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:41:30,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230945672] [2023-11-26 10:41:30,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:30,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:30,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:30,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:30,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:30,592 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 478 [2023-11-26 10:41:30,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 297 transitions, 662 flow. Second operand has 3 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:30,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:41:30,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 478 [2023-11-26 10:41:30,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:41:30,799 INFO L124 PetriNetUnfolderBase]: 81/1032 cut-off events. [2023-11-26 10:41:30,800 INFO L125 PetriNetUnfolderBase]: For 16/17 co-relation queries the response was YES. [2023-11-26 10:41:30,806 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1216 conditions, 1032 events. 81/1032 cut-off events. For 16/17 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 5561 event pairs, 19 based on Foata normal form. 0/907 useless extension candidates. Maximal degree in co-relation 1175. Up to 67 conditions per place. [2023-11-26 10:41:30,812 INFO L140 encePairwiseOnDemand]: 475/478 looper letters, 14 selfloop transitions, 2 changer transitions 0/296 dead transitions. [2023-11-26 10:41:30,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 296 transitions, 692 flow [2023-11-26 10:41:30,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:30,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:41:30,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1286 transitions. [2023-11-26 10:41:30,817 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8967921896792189 [2023-11-26 10:41:30,817 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1286 transitions. [2023-11-26 10:41:30,818 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1286 transitions. [2023-11-26 10:41:30,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:41:30,819 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1286 transitions. [2023-11-26 10:41:30,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 428.6666666666667) internal successors, (1286), 3 states have internal predecessors, (1286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:30,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:30,831 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:30,831 INFO L175 Difference]: Start difference. First operand has 283 places, 297 transitions, 662 flow. Second operand 3 states and 1286 transitions. [2023-11-26 10:41:30,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 296 transitions, 692 flow [2023-11-26 10:41:30,834 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 296 transitions, 688 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:41:30,840 INFO L231 Difference]: Finished difference. Result has 282 places, 296 transitions, 660 flow [2023-11-26 10:41:30,840 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=656, 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=660, PETRI_PLACES=282, PETRI_TRANSITIONS=296} [2023-11-26 10:41:30,841 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -28 predicate places. [2023-11-26 10:41:30,842 INFO L495 AbstractCegarLoop]: Abstraction has has 282 places, 296 transitions, 660 flow [2023-11-26 10:41:30,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 424.3333333333333) internal successors, (1273), 3 states have internal predecessors, (1273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:30,843 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:41:30,843 INFO L208 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] [2023-11-26 10:41:30,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:41:30,844 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)] === [2023-11-26 10:41:30,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:30,845 INFO L85 PathProgramCache]: Analyzing trace with hash 1299352113, now seen corresponding path program 1 times [2023-11-26 10:41:30,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:30,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191441251] [2023-11-26 10:41:30,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:30,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:30,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:30,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:30,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191441251] [2023-11-26 10:41:30,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191441251] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:30,958 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:30,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:41:30,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362795286] [2023-11-26 10:41:30,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:30,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:30,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:30,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:30,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:31,016 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 415 out of 478 [2023-11-26 10:41:31,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 296 transitions, 660 flow. Second operand has 3 states, 3 states have (on average 416.3333333333333) internal successors, (1249), 3 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:31,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:41:31,028 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 415 of 478 [2023-11-26 10:41:31,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:41:31,256 INFO L124 PetriNetUnfolderBase]: 104/1186 cut-off events. [2023-11-26 10:41:31,257 INFO L125 PetriNetUnfolderBase]: For 16/17 co-relation queries the response was YES. [2023-11-26 10:41:31,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1405 conditions, 1186 events. 104/1186 cut-off events. For 16/17 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6752 event pairs, 23 based on Foata normal form. 0/1046 useless extension candidates. Maximal degree in co-relation 1303. Up to 85 conditions per place. [2023-11-26 10:41:31,271 INFO L140 encePairwiseOnDemand]: 470/478 looper letters, 16 selfloop transitions, 5 changer transitions 0/298 dead transitions. [2023-11-26 10:41:31,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 298 transitions, 706 flow [2023-11-26 10:41:31,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:31,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:41:31,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1269 transitions. [2023-11-26 10:41:31,276 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8849372384937239 [2023-11-26 10:41:31,276 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1269 transitions. [2023-11-26 10:41:31,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1269 transitions. [2023-11-26 10:41:31,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:41:31,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1269 transitions. [2023-11-26 10:41:31,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 423.0) internal successors, (1269), 3 states have internal predecessors, (1269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:31,287 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:31,290 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:31,290 INFO L175 Difference]: Start difference. First operand has 282 places, 296 transitions, 660 flow. Second operand 3 states and 1269 transitions. [2023-11-26 10:41:31,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 298 transitions, 706 flow [2023-11-26 10:41:31,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 298 transitions, 702 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:41:31,298 INFO L231 Difference]: Finished difference. Result has 280 places, 296 transitions, 677 flow [2023-11-26 10:41:31,299 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=650, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=677, PETRI_PLACES=280, PETRI_TRANSITIONS=296} [2023-11-26 10:41:31,300 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -30 predicate places. [2023-11-26 10:41:31,301 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 296 transitions, 677 flow [2023-11-26 10:41:31,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 416.3333333333333) internal successors, (1249), 3 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:31,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:41:31,302 INFO L208 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] [2023-11-26 10:41:31,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 10:41:31,303 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)] === [2023-11-26 10:41:31,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:31,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1376613524, now seen corresponding path program 1 times [2023-11-26 10:41:31,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:31,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958407604] [2023-11-26 10:41:31,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:31,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:31,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:31,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:31,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:31,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958407604] [2023-11-26 10:41:31,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958407604] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:31,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:31,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:41:31,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337864861] [2023-11-26 10:41:31,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:31,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:41:31,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:31,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:41:31,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:41:32,141 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 431 out of 478 [2023-11-26 10:41:32,146 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 296 transitions, 677 flow. Second operand has 6 states, 6 states have (on average 432.1666666666667) internal successors, (2593), 6 states have internal predecessors, (2593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:32,146 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:41:32,146 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 431 of 478 [2023-11-26 10:41:32,146 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:41:32,425 INFO L124 PetriNetUnfolderBase]: 130/1027 cut-off events. [2023-11-26 10:41:32,426 INFO L125 PetriNetUnfolderBase]: For 44/93 co-relation queries the response was YES. [2023-11-26 10:41:32,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1337 conditions, 1027 events. 130/1027 cut-off events. For 44/93 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 6077 event pairs, 9 based on Foata normal form. 16/933 useless extension candidates. Maximal degree in co-relation 975. Up to 69 conditions per place. [2023-11-26 10:41:32,438 INFO L140 encePairwiseOnDemand]: 473/478 looper letters, 29 selfloop transitions, 4 changer transitions 19/315 dead transitions. [2023-11-26 10:41:32,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 315 transitions, 817 flow [2023-11-26 10:41:32,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:41:32,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:41:32,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2620 transitions. [2023-11-26 10:41:32,448 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9135285913528591 [2023-11-26 10:41:32,448 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2620 transitions. [2023-11-26 10:41:32,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2620 transitions. [2023-11-26 10:41:32,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:41:32,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2620 transitions. [2023-11-26 10:41:32,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 436.6666666666667) internal successors, (2620), 6 states have internal predecessors, (2620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:32,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 478.0) internal successors, (3346), 7 states have internal predecessors, (3346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:32,474 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 478.0) internal successors, (3346), 7 states have internal predecessors, (3346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:32,474 INFO L175 Difference]: Start difference. First operand has 280 places, 296 transitions, 677 flow. Second operand 6 states and 2620 transitions. [2023-11-26 10:41:32,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 315 transitions, 817 flow [2023-11-26 10:41:32,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 315 transitions, 812 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:41:32,485 INFO L231 Difference]: Finished difference. Result has 283 places, 276 transitions, 636 flow [2023-11-26 10:41:32,486 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=670, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=636, PETRI_PLACES=283, PETRI_TRANSITIONS=276} [2023-11-26 10:41:32,487 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -27 predicate places. [2023-11-26 10:41:32,487 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 276 transitions, 636 flow [2023-11-26 10:41:32,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 432.1666666666667) internal successors, (2593), 6 states have internal predecessors, (2593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:32,489 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:41:32,489 INFO L208 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] [2023-11-26 10:41:32,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 10:41:32,490 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)] === [2023-11-26 10:41:32,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:32,491 INFO L85 PathProgramCache]: Analyzing trace with hash -666149013, now seen corresponding path program 1 times [2023-11-26 10:41:32,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:32,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727678319] [2023-11-26 10:41:32,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:32,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:32,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:32,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:32,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727678319] [2023-11-26 10:41:32,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727678319] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:32,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:32,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:41:32,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742732566] [2023-11-26 10:41:32,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:32,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:32,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:32,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:32,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:32,670 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 478 [2023-11-26 10:41:32,672 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 276 transitions, 636 flow. Second operand has 3 states, 3 states have (on average 420.0) internal successors, (1260), 3 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:32,673 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:41:32,673 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 478 [2023-11-26 10:41:32,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:41:32,876 INFO L124 PetriNetUnfolderBase]: 123/1089 cut-off events. [2023-11-26 10:41:32,876 INFO L125 PetriNetUnfolderBase]: For 85/97 co-relation queries the response was YES. [2023-11-26 10:41:32,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1423 conditions, 1089 events. 123/1089 cut-off events. For 85/97 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 6003 event pairs, 30 based on Foata normal form. 2/961 useless extension candidates. Maximal degree in co-relation 1340. Up to 155 conditions per place. [2023-11-26 10:41:32,890 INFO L140 encePairwiseOnDemand]: 472/478 looper letters, 27 selfloop transitions, 7 changer transitions 0/283 dead transitions. [2023-11-26 10:41:32,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 283 transitions, 724 flow [2023-11-26 10:41:32,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:32,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:41:32,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1282 transitions. [2023-11-26 10:41:32,896 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8940027894002789 [2023-11-26 10:41:32,896 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1282 transitions. [2023-11-26 10:41:32,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1282 transitions. [2023-11-26 10:41:32,897 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:41:32,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1282 transitions. [2023-11-26 10:41:32,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 427.3333333333333) internal successors, (1282), 3 states have internal predecessors, (1282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:32,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:32,907 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:32,908 INFO L175 Difference]: Start difference. First operand has 283 places, 276 transitions, 636 flow. Second operand 3 states and 1282 transitions. [2023-11-26 10:41:32,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 283 transitions, 724 flow [2023-11-26 10:41:32,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 283 transitions, 717 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-26 10:41:32,917 INFO L231 Difference]: Finished difference. Result has 265 places, 281 transitions, 685 flow [2023-11-26 10:41:32,918 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=629, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=685, PETRI_PLACES=265, PETRI_TRANSITIONS=281} [2023-11-26 10:41:32,918 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -45 predicate places. [2023-11-26 10:41:32,919 INFO L495 AbstractCegarLoop]: Abstraction has has 265 places, 281 transitions, 685 flow [2023-11-26 10:41:32,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 420.0) internal successors, (1260), 3 states have internal predecessors, (1260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:32,920 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:41:32,920 INFO L208 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] [2023-11-26 10:41:32,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 10:41:32,920 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)] === [2023-11-26 10:41:32,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:32,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1985837229, now seen corresponding path program 1 times [2023-11-26 10:41:32,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:32,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919789749] [2023-11-26 10:41:32,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:32,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:32,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:33,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:33,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:33,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919789749] [2023-11-26 10:41:33,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919789749] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:33,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:33,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:41:33,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946653635] [2023-11-26 10:41:33,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:33,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:33,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:33,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:33,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:33,126 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 422 out of 478 [2023-11-26 10:41:33,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 281 transitions, 685 flow. Second operand has 3 states, 3 states have (on average 423.3333333333333) internal successors, (1270), 3 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:33,128 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:41:33,128 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 422 of 478 [2023-11-26 10:41:33,128 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:41:33,351 INFO L124 PetriNetUnfolderBase]: 125/1208 cut-off events. [2023-11-26 10:41:33,352 INFO L125 PetriNetUnfolderBase]: For 116/132 co-relation queries the response was YES. [2023-11-26 10:41:33,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1558 conditions, 1208 events. 125/1208 cut-off events. For 116/132 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 7103 event pairs, 15 based on Foata normal form. 1/1067 useless extension candidates. Maximal degree in co-relation 1478. Up to 71 conditions per place. [2023-11-26 10:41:33,367 INFO L140 encePairwiseOnDemand]: 470/478 looper letters, 15 selfloop transitions, 5 changer transitions 0/285 dead transitions. [2023-11-26 10:41:33,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 285 transitions, 733 flow [2023-11-26 10:41:33,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:33,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:41:33,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1289 transitions. [2023-11-26 10:41:33,372 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.898884239888424 [2023-11-26 10:41:33,372 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1289 transitions. [2023-11-26 10:41:33,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1289 transitions. [2023-11-26 10:41:33,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:41:33,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1289 transitions. [2023-11-26 10:41:33,378 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 429.6666666666667) internal successors, (1289), 3 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:33,390 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:33,399 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:33,400 INFO L175 Difference]: Start difference. First operand has 265 places, 281 transitions, 685 flow. Second operand 3 states and 1289 transitions. [2023-11-26 10:41:33,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 285 transitions, 733 flow [2023-11-26 10:41:33,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 285 transitions, 719 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:41:33,409 INFO L231 Difference]: Finished difference. Result has 267 places, 283 transitions, 705 flow [2023-11-26 10:41:33,410 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=671, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=276, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=705, PETRI_PLACES=267, PETRI_TRANSITIONS=283} [2023-11-26 10:41:33,413 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -43 predicate places. [2023-11-26 10:41:33,413 INFO L495 AbstractCegarLoop]: Abstraction has has 267 places, 283 transitions, 705 flow [2023-11-26 10:41:33,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 423.3333333333333) internal successors, (1270), 3 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:33,414 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:41:33,415 INFO L208 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] [2023-11-26 10:41:33,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 10:41:33,415 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)] === [2023-11-26 10:41:33,415 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:33,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1266217786, now seen corresponding path program 1 times [2023-11-26 10:41:33,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:33,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670909924] [2023-11-26 10:41:33,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:33,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:33,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:33,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:33,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:33,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670909924] [2023-11-26 10:41:33,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670909924] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:33,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:33,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:41:33,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899846749] [2023-11-26 10:41:33,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:33,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:33,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:33,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:33,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:33,621 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 478 [2023-11-26 10:41:33,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 283 transitions, 705 flow. Second operand has 3 states, 3 states have (on average 419.0) internal successors, (1257), 3 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:33,623 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:41:33,623 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 478 [2023-11-26 10:41:33,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:41:33,877 INFO L124 PetriNetUnfolderBase]: 165/1269 cut-off events. [2023-11-26 10:41:33,877 INFO L125 PetriNetUnfolderBase]: For 195/261 co-relation queries the response was YES. [2023-11-26 10:41:33,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1842 conditions, 1269 events. 165/1269 cut-off events. For 195/261 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 7677 event pairs, 39 based on Foata normal form. 2/1138 useless extension candidates. Maximal degree in co-relation 1758. Up to 232 conditions per place. [2023-11-26 10:41:33,892 INFO L140 encePairwiseOnDemand]: 470/478 looper letters, 29 selfloop transitions, 11 changer transitions 0/291 dead transitions. [2023-11-26 10:41:33,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 291 transitions, 814 flow [2023-11-26 10:41:33,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:33,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:41:33,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1279 transitions. [2023-11-26 10:41:33,897 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8919107391910739 [2023-11-26 10:41:33,898 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1279 transitions. [2023-11-26 10:41:33,898 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1279 transitions. [2023-11-26 10:41:33,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:41:33,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1279 transitions. [2023-11-26 10:41:33,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 426.3333333333333) internal successors, (1279), 3 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:33,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:33,908 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:33,908 INFO L175 Difference]: Start difference. First operand has 267 places, 283 transitions, 705 flow. Second operand 3 states and 1279 transitions. [2023-11-26 10:41:33,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 291 transitions, 814 flow [2023-11-26 10:41:33,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 267 places, 291 transitions, 804 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:41:33,917 INFO L231 Difference]: Finished difference. Result has 269 places, 290 transitions, 781 flow [2023-11-26 10:41:33,918 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=695, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=781, PETRI_PLACES=269, PETRI_TRANSITIONS=290} [2023-11-26 10:41:33,919 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -41 predicate places. [2023-11-26 10:41:33,919 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 290 transitions, 781 flow [2023-11-26 10:41:33,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 419.0) internal successors, (1257), 3 states have internal predecessors, (1257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:33,920 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:41:33,921 INFO L208 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] [2023-11-26 10:41:33,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 10:41:33,921 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)] === [2023-11-26 10:41:33,921 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:33,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1337695512, now seen corresponding path program 1 times [2023-11-26 10:41:33,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:33,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559439542] [2023-11-26 10:41:33,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:33,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:33,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:34,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:34,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:34,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559439542] [2023-11-26 10:41:34,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559439542] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:34,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:34,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:41:34,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582944968] [2023-11-26 10:41:34,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:34,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:34,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:34,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:34,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:34,079 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 478 [2023-11-26 10:41:34,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 290 transitions, 781 flow. Second operand has 3 states, 3 states have (on average 425.0) internal successors, (1275), 3 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:34,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:41:34,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 478 [2023-11-26 10:41:34,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:41:34,367 INFO L124 PetriNetUnfolderBase]: 169/1431 cut-off events. [2023-11-26 10:41:34,367 INFO L125 PetriNetUnfolderBase]: For 332/370 co-relation queries the response was YES. [2023-11-26 10:41:34,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2036 conditions, 1431 events. 169/1431 cut-off events. For 332/370 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 9035 event pairs, 23 based on Foata normal form. 0/1274 useless extension candidates. Maximal degree in co-relation 1954. Up to 99 conditions per place. [2023-11-26 10:41:34,387 INFO L140 encePairwiseOnDemand]: 475/478 looper letters, 19 selfloop transitions, 2 changer transitions 0/291 dead transitions. [2023-11-26 10:41:34,387 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 291 transitions, 825 flow [2023-11-26 10:41:34,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:34,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:41:34,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1288 transitions. [2023-11-26 10:41:34,399 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.898186889818689 [2023-11-26 10:41:34,400 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1288 transitions. [2023-11-26 10:41:34,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1288 transitions. [2023-11-26 10:41:34,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:41:34,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1288 transitions. [2023-11-26 10:41:34,409 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 429.3333333333333) internal successors, (1288), 3 states have internal predecessors, (1288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:34,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:34,413 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:34,413 INFO L175 Difference]: Start difference. First operand has 269 places, 290 transitions, 781 flow. Second operand 3 states and 1288 transitions. [2023-11-26 10:41:34,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 291 transitions, 825 flow [2023-11-26 10:41:34,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 291 transitions, 803 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:41:34,426 INFO L231 Difference]: Finished difference. Result has 268 places, 289 transitions, 761 flow [2023-11-26 10:41:34,428 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=757, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=761, PETRI_PLACES=268, PETRI_TRANSITIONS=289} [2023-11-26 10:41:34,430 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -42 predicate places. [2023-11-26 10:41:34,430 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 289 transitions, 761 flow [2023-11-26 10:41:34,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 425.0) internal successors, (1275), 3 states have internal predecessors, (1275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:34,431 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:41:34,431 INFO L208 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] [2023-11-26 10:41:34,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 10:41:34,432 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)] === [2023-11-26 10:41:34,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:34,432 INFO L85 PathProgramCache]: Analyzing trace with hash 2058707167, now seen corresponding path program 1 times [2023-11-26 10:41:34,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:34,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791516872] [2023-11-26 10:41:34,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:34,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:34,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:34,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:34,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791516872] [2023-11-26 10:41:34,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791516872] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:34,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:34,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:41:34,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746824609] [2023-11-26 10:41:34,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:34,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:34,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:34,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:34,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:34,624 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 478 [2023-11-26 10:41:34,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 289 transitions, 761 flow. Second operand has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:34,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:41:34,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 478 [2023-11-26 10:41:34,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:41:35,015 INFO L124 PetriNetUnfolderBase]: 280/1947 cut-off events. [2023-11-26 10:41:35,016 INFO L125 PetriNetUnfolderBase]: For 646/732 co-relation queries the response was YES. [2023-11-26 10:41:35,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2983 conditions, 1947 events. 280/1947 cut-off events. For 646/732 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 13873 event pairs, 90 based on Foata normal form. 2/1760 useless extension candidates. Maximal degree in co-relation 2740. Up to 358 conditions per place. [2023-11-26 10:41:35,039 INFO L140 encePairwiseOnDemand]: 472/478 looper letters, 35 selfloop transitions, 9 changer transitions 1/296 dead transitions. [2023-11-26 10:41:35,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 296 transitions, 879 flow [2023-11-26 10:41:35,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:35,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:41:35,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1278 transitions. [2023-11-26 10:41:35,047 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.891213389121339 [2023-11-26 10:41:35,047 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1278 transitions. [2023-11-26 10:41:35,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1278 transitions. [2023-11-26 10:41:35,049 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:41:35,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1278 transitions. [2023-11-26 10:41:35,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 426.0) internal successors, (1278), 3 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:35,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:35,061 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:35,061 INFO L175 Difference]: Start difference. First operand has 268 places, 289 transitions, 761 flow. Second operand 3 states and 1278 transitions. [2023-11-26 10:41:35,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 296 transitions, 879 flow [2023-11-26 10:41:35,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 296 transitions, 875 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:41:35,074 INFO L231 Difference]: Finished difference. Result has 270 places, 293 transitions, 827 flow [2023-11-26 10:41:35,075 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=757, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=289, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=827, PETRI_PLACES=270, PETRI_TRANSITIONS=293} [2023-11-26 10:41:35,075 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -40 predicate places. [2023-11-26 10:41:35,076 INFO L495 AbstractCegarLoop]: Abstraction has has 270 places, 293 transitions, 827 flow [2023-11-26 10:41:35,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 419.3333333333333) internal successors, (1258), 3 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:35,077 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:41:35,077 INFO L208 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] [2023-11-26 10:41:35,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 10:41:35,078 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)] === [2023-11-26 10:41:35,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:35,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1698302677, now seen corresponding path program 1 times [2023-11-26 10:41:35,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:35,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282326376] [2023-11-26 10:41:35,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:35,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:35,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:35,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:35,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:35,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282326376] [2023-11-26 10:41:35,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282326376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:35,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:35,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:41:35,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833834447] [2023-11-26 10:41:35,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:35,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:41:35,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:35,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:41:35,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:41:35,293 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 429 out of 478 [2023-11-26 10:41:35,296 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 293 transitions, 827 flow. Second operand has 5 states, 5 states have (on average 431.0) internal successors, (2155), 5 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:35,296 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:41:35,296 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 429 of 478 [2023-11-26 10:41:35,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:41:36,088 INFO L124 PetriNetUnfolderBase]: 433/3953 cut-off events. [2023-11-26 10:41:36,088 INFO L125 PetriNetUnfolderBase]: For 1166/1220 co-relation queries the response was YES. [2023-11-26 10:41:36,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5830 conditions, 3953 events. 433/3953 cut-off events. For 1166/1220 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 35139 event pairs, 46 based on Foata normal form. 3/3578 useless extension candidates. Maximal degree in co-relation 5747. Up to 301 conditions per place. [2023-11-26 10:41:36,156 INFO L140 encePairwiseOnDemand]: 471/478 looper letters, 34 selfloop transitions, 9 changer transitions 0/320 dead transitions. [2023-11-26 10:41:36,156 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 320 transitions, 978 flow [2023-11-26 10:41:36,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 10:41:36,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-26 10:41:36,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3047 transitions. [2023-11-26 10:41:36,167 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9106395696353855 [2023-11-26 10:41:36,167 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3047 transitions. [2023-11-26 10:41:36,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3047 transitions. [2023-11-26 10:41:36,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:41:36,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3047 transitions. [2023-11-26 10:41:36,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 435.2857142857143) internal successors, (3047), 7 states have internal predecessors, (3047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:36,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 478.0) internal successors, (3824), 8 states have internal predecessors, (3824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:36,189 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 478.0) internal successors, (3824), 8 states have internal predecessors, (3824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:36,190 INFO L175 Difference]: Start difference. First operand has 270 places, 293 transitions, 827 flow. Second operand 7 states and 3047 transitions. [2023-11-26 10:41:36,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 320 transitions, 978 flow [2023-11-26 10:41:36,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 320 transitions, 954 flow, removed 3 selfloop flow, removed 2 redundant places. [2023-11-26 10:41:36,203 INFO L231 Difference]: Finished difference. Result has 280 places, 301 transitions, 871 flow [2023-11-26 10:41:36,204 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=871, PETRI_PLACES=280, PETRI_TRANSITIONS=301} [2023-11-26 10:41:36,205 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -30 predicate places. [2023-11-26 10:41:36,205 INFO L495 AbstractCegarLoop]: Abstraction has has 280 places, 301 transitions, 871 flow [2023-11-26 10:41:36,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 431.0) internal successors, (2155), 5 states have internal predecessors, (2155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:36,206 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:41:36,207 INFO L208 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] [2023-11-26 10:41:36,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 10:41:36,207 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)] === [2023-11-26 10:41:36,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:36,208 INFO L85 PathProgramCache]: Analyzing trace with hash 491305213, now seen corresponding path program 1 times [2023-11-26 10:41:36,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:36,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500422289] [2023-11-26 10:41:36,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:36,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:36,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:36,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:36,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:36,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500422289] [2023-11-26 10:41:36,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500422289] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:36,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:36,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:41:36,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375102535] [2023-11-26 10:41:36,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:36,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:41:36,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:36,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:41:36,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:41:36,395 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 427 out of 478 [2023-11-26 10:41:36,398 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 301 transitions, 871 flow. Second operand has 5 states, 5 states have (on average 429.4) internal successors, (2147), 5 states have internal predecessors, (2147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:36,398 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:41:36,398 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 427 of 478 [2023-11-26 10:41:36,399 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:41:37,611 INFO L124 PetriNetUnfolderBase]: 576/5072 cut-off events. [2023-11-26 10:41:37,611 INFO L125 PetriNetUnfolderBase]: For 1178/1270 co-relation queries the response was YES. [2023-11-26 10:41:37,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7477 conditions, 5072 events. 576/5072 cut-off events. For 1178/1270 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 45605 event pairs, 59 based on Foata normal form. 4/4584 useless extension candidates. Maximal degree in co-relation 7389. Up to 388 conditions per place. [2023-11-26 10:41:37,665 INFO L140 encePairwiseOnDemand]: 470/478 looper letters, 32 selfloop transitions, 8 changer transitions 0/323 dead transitions. [2023-11-26 10:41:37,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 286 places, 323 transitions, 1002 flow [2023-11-26 10:41:37,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-26 10:41:37,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-11-26 10:41:37,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3030 transitions. [2023-11-26 10:41:37,677 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9055588762701734 [2023-11-26 10:41:37,677 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3030 transitions. [2023-11-26 10:41:37,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3030 transitions. [2023-11-26 10:41:37,681 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:41:37,681 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3030 transitions. [2023-11-26 10:41:37,691 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 432.85714285714283) internal successors, (3030), 7 states have internal predecessors, (3030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:37,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 478.0) internal successors, (3824), 8 states have internal predecessors, (3824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:37,703 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 478.0) internal successors, (3824), 8 states have internal predecessors, (3824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:37,703 INFO L175 Difference]: Start difference. First operand has 280 places, 301 transitions, 871 flow. Second operand 7 states and 3030 transitions. [2023-11-26 10:41:37,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 286 places, 323 transitions, 1002 flow [2023-11-26 10:41:37,710 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 323 transitions, 1002 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:41:37,717 INFO L231 Difference]: Finished difference. Result has 291 places, 308 transitions, 929 flow [2023-11-26 10:41:37,717 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=871, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=929, PETRI_PLACES=291, PETRI_TRANSITIONS=308} [2023-11-26 10:41:37,719 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -19 predicate places. [2023-11-26 10:41:37,719 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 308 transitions, 929 flow [2023-11-26 10:41:37,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 429.4) internal successors, (2147), 5 states have internal predecessors, (2147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:37,720 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:41:37,720 INFO L208 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:37,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-26 10:41:37,721 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)] === [2023-11-26 10:41:37,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:37,722 INFO L85 PathProgramCache]: Analyzing trace with hash 396433175, now seen corresponding path program 1 times [2023-11-26 10:41:37,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:37,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618431933] [2023-11-26 10:41:37,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:37,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:37,948 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:37,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:37,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618431933] [2023-11-26 10:41:37,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618431933] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:37,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:37,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:41:37,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205326700] [2023-11-26 10:41:37,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:37,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:41:37,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:37,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:41:37,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:41:37,983 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 430 out of 478 [2023-11-26 10:41:37,986 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 308 transitions, 929 flow. Second operand has 5 states, 5 states have (on average 431.6) internal successors, (2158), 5 states have internal predecessors, (2158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:37,987 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:41:37,987 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 430 of 478 [2023-11-26 10:41:37,987 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:41:38,911 INFO L124 PetriNetUnfolderBase]: 427/3893 cut-off events. [2023-11-26 10:41:38,911 INFO L125 PetriNetUnfolderBase]: For 1039/1108 co-relation queries the response was YES. [2023-11-26 10:41:38,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5835 conditions, 3893 events. 427/3893 cut-off events. For 1039/1108 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 31956 event pairs, 67 based on Foata normal form. 7/3532 useless extension candidates. Maximal degree in co-relation 5742. Up to 299 conditions per place. [2023-11-26 10:41:38,951 INFO L140 encePairwiseOnDemand]: 473/478 looper letters, 27 selfloop transitions, 4 changer transitions 1/317 dead transitions. [2023-11-26 10:41:38,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 317 transitions, 1012 flow [2023-11-26 10:41:38,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:41:38,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:41:38,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2608 transitions. [2023-11-26 10:41:38,960 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9093444909344491 [2023-11-26 10:41:38,960 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2608 transitions. [2023-11-26 10:41:38,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2608 transitions. [2023-11-26 10:41:38,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:41:38,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2608 transitions. [2023-11-26 10:41:38,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 434.6666666666667) internal successors, (2608), 6 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:38,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 478.0) internal successors, (3346), 7 states have internal predecessors, (3346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:38,977 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 478.0) internal successors, (3346), 7 states have internal predecessors, (3346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:38,977 INFO L175 Difference]: Start difference. First operand has 291 places, 308 transitions, 929 flow. Second operand 6 states and 2608 transitions. [2023-11-26 10:41:38,977 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 317 transitions, 1012 flow [2023-11-26 10:41:38,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 317 transitions, 1012 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 10:41:38,988 INFO L231 Difference]: Finished difference. Result has 297 places, 307 transitions, 935 flow [2023-11-26 10:41:38,989 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=923, 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=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=935, PETRI_PLACES=297, PETRI_TRANSITIONS=307} [2023-11-26 10:41:38,990 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -13 predicate places. [2023-11-26 10:41:38,990 INFO L495 AbstractCegarLoop]: Abstraction has has 297 places, 307 transitions, 935 flow [2023-11-26 10:41:38,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 431.6) internal successors, (2158), 5 states have internal predecessors, (2158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:38,991 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:41:38,992 INFO L208 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:38,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-26 10:41:38,992 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)] === [2023-11-26 10:41:38,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:38,993 INFO L85 PathProgramCache]: Analyzing trace with hash 497619703, now seen corresponding path program 1 times [2023-11-26 10:41:38,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:38,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920774007] [2023-11-26 10:41:38,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:38,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:39,144 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:39,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:39,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920774007] [2023-11-26 10:41:39,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920774007] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:39,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:39,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:41:39,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941767456] [2023-11-26 10:41:39,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:39,146 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 10:41:39,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:39,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 10:41:39,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 10:41:39,171 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 428 out of 478 [2023-11-26 10:41:39,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 297 places, 307 transitions, 935 flow. Second operand has 5 states, 5 states have (on average 430.0) internal successors, (2150), 5 states have internal predecessors, (2150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:39,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:41:39,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 428 of 478 [2023-11-26 10:41:39,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:41:39,713 INFO L124 PetriNetUnfolderBase]: 267/2496 cut-off events. [2023-11-26 10:41:39,713 INFO L125 PetriNetUnfolderBase]: For 683/729 co-relation queries the response was YES. [2023-11-26 10:41:39,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3841 conditions, 2496 events. 267/2496 cut-off events. For 683/729 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 18452 event pairs, 55 based on Foata normal form. 7/2267 useless extension candidates. Maximal degree in co-relation 3746. Up to 194 conditions per place. [2023-11-26 10:41:39,739 INFO L140 encePairwiseOnDemand]: 472/478 looper letters, 26 selfloop transitions, 5 changer transitions 0/314 dead transitions. [2023-11-26 10:41:39,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 314 transitions, 1006 flow [2023-11-26 10:41:39,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:41:39,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:41:39,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2599 transitions. [2023-11-26 10:41:39,748 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9062064156206415 [2023-11-26 10:41:39,748 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2599 transitions. [2023-11-26 10:41:39,748 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2599 transitions. [2023-11-26 10:41:39,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:41:39,750 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2599 transitions. [2023-11-26 10:41:39,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 433.1666666666667) internal successors, (2599), 6 states have internal predecessors, (2599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:39,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 478.0) internal successors, (3346), 7 states have internal predecessors, (3346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:39,764 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 478.0) internal successors, (3346), 7 states have internal predecessors, (3346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:39,764 INFO L175 Difference]: Start difference. First operand has 297 places, 307 transitions, 935 flow. Second operand 6 states and 2599 transitions. [2023-11-26 10:41:39,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 314 transitions, 1006 flow [2023-11-26 10:41:39,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 298 places, 314 transitions, 994 flow, removed 3 selfloop flow, removed 3 redundant places. [2023-11-26 10:41:39,776 INFO L231 Difference]: Finished difference. Result has 298 places, 305 transitions, 923 flow [2023-11-26 10:41:39,777 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=913, PETRI_DIFFERENCE_MINUEND_PLACES=293, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=923, PETRI_PLACES=298, PETRI_TRANSITIONS=305} [2023-11-26 10:41:39,778 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -12 predicate places. [2023-11-26 10:41:39,778 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 305 transitions, 923 flow [2023-11-26 10:41:39,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 430.0) internal successors, (2150), 5 states have internal predecessors, (2150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:39,779 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:41:39,780 INFO L208 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:39,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-26 10:41:39,780 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)] === [2023-11-26 10:41:39,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:39,780 INFO L85 PathProgramCache]: Analyzing trace with hash 919228448, now seen corresponding path program 1 times [2023-11-26 10:41:39,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:39,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242060620] [2023-11-26 10:41:39,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:39,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:40,593 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-26 10:41:40,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:40,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242060620] [2023-11-26 10:41:40,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242060620] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:40,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:40,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 10:41:40,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603998452] [2023-11-26 10:41:40,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:40,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 10:41:40,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:40,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 10:41:40,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 10:41:40,789 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 425 out of 478 [2023-11-26 10:41:40,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 305 transitions, 923 flow. Second operand has 6 states, 6 states have (on average 426.3333333333333) internal successors, (2558), 6 states have internal predecessors, (2558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:40,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:41:40,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 425 of 478 [2023-11-26 10:41:40,792 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:41:41,863 INFO L124 PetriNetUnfolderBase]: 460/3873 cut-off events. [2023-11-26 10:41:41,863 INFO L125 PetriNetUnfolderBase]: For 1339/1519 co-relation queries the response was YES. [2023-11-26 10:41:41,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5943 conditions, 3873 events. 460/3873 cut-off events. For 1339/1519 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 28703 event pairs, 42 based on Foata normal form. 4/3470 useless extension candidates. Maximal degree in co-relation 5849. Up to 360 conditions per place. [2023-11-26 10:41:41,920 INFO L140 encePairwiseOnDemand]: 473/478 looper letters, 23 selfloop transitions, 4 changer transitions 0/318 dead transitions. [2023-11-26 10:41:41,920 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 318 transitions, 1007 flow [2023-11-26 10:41:41,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 10:41:41,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 10:41:41,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2578 transitions. [2023-11-26 10:41:41,931 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.898884239888424 [2023-11-26 10:41:41,931 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2578 transitions. [2023-11-26 10:41:41,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2578 transitions. [2023-11-26 10:41:41,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:41:41,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2578 transitions. [2023-11-26 10:41:41,947 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 429.6666666666667) internal successors, (2578), 6 states have internal predecessors, (2578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:41,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 478.0) internal successors, (3346), 7 states have internal predecessors, (3346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:41,957 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 478.0) internal successors, (3346), 7 states have internal predecessors, (3346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:41,958 INFO L175 Difference]: Start difference. First operand has 298 places, 305 transitions, 923 flow. Second operand 6 states and 2578 transitions. [2023-11-26 10:41:41,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 318 transitions, 1007 flow [2023-11-26 10:41:41,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 318 transitions, 988 flow, removed 4 selfloop flow, removed 5 redundant places. [2023-11-26 10:41:41,971 INFO L231 Difference]: Finished difference. Result has 301 places, 308 transitions, 933 flow [2023-11-26 10:41:41,973 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=933, PETRI_PLACES=301, PETRI_TRANSITIONS=308} [2023-11-26 10:41:41,973 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -9 predicate places. [2023-11-26 10:41:41,975 INFO L495 AbstractCegarLoop]: Abstraction has has 301 places, 308 transitions, 933 flow [2023-11-26 10:41:41,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 426.3333333333333) internal successors, (2558), 6 states have internal predecessors, (2558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:41,977 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:41:41,977 INFO L208 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] [2023-11-26 10:41:41,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-26 10:41:41,978 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread_usbThread1of1ForFork0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-11-26 10:41:41,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:41,979 INFO L85 PathProgramCache]: Analyzing trace with hash 418415591, now seen corresponding path program 1 times [2023-11-26 10:41:41,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:41,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141246926] [2023-11-26 10:41:41,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:41,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:42,151 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:41:42,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:42,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141246926] [2023-11-26 10:41:42,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141246926] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:42,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:42,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:41:42,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791636696] [2023-11-26 10:41:42,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:42,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:42,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:42,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:42,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:42,183 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 424 out of 478 [2023-11-26 10:41:42,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 301 places, 308 transitions, 933 flow. Second operand has 3 states, 3 states have (on average 426.3333333333333) internal successors, (1279), 3 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:42,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:41:42,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 424 of 478 [2023-11-26 10:41:42,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:41:42,378 INFO L124 PetriNetUnfolderBase]: 62/709 cut-off events. [2023-11-26 10:41:42,379 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2023-11-26 10:41:42,386 INFO L83 FinitePrefix]: Finished finitePrefix Result has 988 conditions, 709 events. 62/709 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1854 event pairs, 0 based on Foata normal form. 18/663 useless extension candidates. Maximal degree in co-relation 894. Up to 48 conditions per place. [2023-11-26 10:41:42,388 INFO L140 encePairwiseOnDemand]: 473/478 looper letters, 13 selfloop transitions, 2 changer transitions 54/275 dead transitions. [2023-11-26 10:41:42,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 275 transitions, 780 flow [2023-11-26 10:41:42,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:42,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:41:42,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1291 transitions. [2023-11-26 10:41:42,395 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.900278940027894 [2023-11-26 10:41:42,395 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1291 transitions. [2023-11-26 10:41:42,395 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1291 transitions. [2023-11-26 10:41:42,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:41:42,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1291 transitions. [2023-11-26 10:41:42,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 430.3333333333333) internal successors, (1291), 3 states have internal predecessors, (1291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:42,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:42,410 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:42,410 INFO L175 Difference]: Start difference. First operand has 301 places, 308 transitions, 933 flow. Second operand 3 states and 1291 transitions. [2023-11-26 10:41:42,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 275 transitions, 780 flow [2023-11-26 10:41:42,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 275 transitions, 718 flow, removed 13 selfloop flow, removed 10 redundant places. [2023-11-26 10:41:42,420 INFO L231 Difference]: Finished difference. Result has 287 places, 219 transitions, 557 flow [2023-11-26 10:41:42,420 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=682, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=557, PETRI_PLACES=287, PETRI_TRANSITIONS=219} [2023-11-26 10:41:42,421 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -23 predicate places. [2023-11-26 10:41:42,421 INFO L495 AbstractCegarLoop]: Abstraction has has 287 places, 219 transitions, 557 flow [2023-11-26 10:41:42,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 426.3333333333333) internal successors, (1279), 3 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:42,422 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:41:42,422 INFO L208 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:42,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-26 10:41:42,423 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)] === [2023-11-26 10:41:42,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:42,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1138819374, now seen corresponding path program 1 times [2023-11-26 10:41:42,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:42,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588356907] [2023-11-26 10:41:42,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:42,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:42,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:42,545 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-26 10:41:42,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:42,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588356907] [2023-11-26 10:41:42,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588356907] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:42,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:42,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:41:42,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855940933] [2023-11-26 10:41:42,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:42,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:42,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:42,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:42,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:42,607 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 423 out of 478 [2023-11-26 10:41:42,609 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 219 transitions, 557 flow. Second operand has 3 states, 3 states have (on average 426.3333333333333) internal successors, (1279), 3 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:42,609 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:41:42,609 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 423 of 478 [2023-11-26 10:41:42,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:41:42,755 INFO L124 PetriNetUnfolderBase]: 74/734 cut-off events. [2023-11-26 10:41:42,756 INFO L125 PetriNetUnfolderBase]: For 73/74 co-relation queries the response was YES. [2023-11-26 10:41:42,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 971 conditions, 734 events. 74/734 cut-off events. For 73/74 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2073 event pairs, 16 based on Foata normal form. 0/662 useless extension candidates. Maximal degree in co-relation 882. Up to 93 conditions per place. [2023-11-26 10:41:42,764 INFO L140 encePairwiseOnDemand]: 475/478 looper letters, 16 selfloop transitions, 2 changer transitions 0/218 dead transitions. [2023-11-26 10:41:42,765 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 218 transitions, 591 flow [2023-11-26 10:41:42,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:42,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:41:42,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1285 transitions. [2023-11-26 10:41:42,770 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.896094839609484 [2023-11-26 10:41:42,770 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1285 transitions. [2023-11-26 10:41:42,770 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1285 transitions. [2023-11-26 10:41:42,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:41:42,771 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1285 transitions. [2023-11-26 10:41:42,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 428.3333333333333) internal successors, (1285), 3 states have internal predecessors, (1285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:42,776 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:42,777 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:42,777 INFO L175 Difference]: Start difference. First operand has 287 places, 219 transitions, 557 flow. Second operand 3 states and 1285 transitions. [2023-11-26 10:41:42,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 218 transitions, 591 flow [2023-11-26 10:41:42,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 226 places, 218 transitions, 565 flow, removed 4 selfloop flow, removed 10 redundant places. [2023-11-26 10:41:42,784 INFO L231 Difference]: Finished difference. Result has 226 places, 218 transitions, 533 flow [2023-11-26 10:41:42,784 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=216, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=533, PETRI_PLACES=226, PETRI_TRANSITIONS=218} [2023-11-26 10:41:42,785 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -84 predicate places. [2023-11-26 10:41:42,785 INFO L495 AbstractCegarLoop]: Abstraction has has 226 places, 218 transitions, 533 flow [2023-11-26 10:41:42,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 426.3333333333333) internal successors, (1279), 3 states have internal predecessors, (1279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:42,786 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:41:42,786 INFO L208 CegarLoopForPetriNet]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:42,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-26 10:41:42,787 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)] === [2023-11-26 10:41:42,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:41:42,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1866721898, now seen corresponding path program 1 times [2023-11-26 10:41:42,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:41:42,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954897574] [2023-11-26 10:41:42,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:41:42,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:41:42,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:41:42,888 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-26 10:41:42,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:41:42,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954897574] [2023-11-26 10:41:42,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954897574] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:41:42,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:41:42,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:41:42,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975744470] [2023-11-26 10:41:42,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:41:42,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:41:42,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:41:42,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:41:42,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:41:42,973 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 418 out of 478 [2023-11-26 10:41:42,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 218 transitions, 533 flow. Second operand has 3 states, 3 states have (on average 420.6666666666667) internal successors, (1262), 3 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:42,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:41:42,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 418 of 478 [2023-11-26 10:41:42,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:41:43,060 INFO L124 PetriNetUnfolderBase]: 28/415 cut-off events. [2023-11-26 10:41:43,060 INFO L125 PetriNetUnfolderBase]: For 6/10 co-relation queries the response was YES. [2023-11-26 10:41:43,064 INFO L83 FinitePrefix]: Finished finitePrefix Result has 528 conditions, 415 events. 28/415 cut-off events. For 6/10 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 517 event pairs, 0 based on Foata normal form. 0/383 useless extension candidates. Maximal degree in co-relation 440. Up to 24 conditions per place. [2023-11-26 10:41:43,064 INFO L140 encePairwiseOnDemand]: 475/478 looper letters, 0 selfloop transitions, 0 changer transitions 217/217 dead transitions. [2023-11-26 10:41:43,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 217 transitions, 561 flow [2023-11-26 10:41:43,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:41:43,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:41:43,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1270 transitions. [2023-11-26 10:41:43,069 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8856345885634589 [2023-11-26 10:41:43,069 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1270 transitions. [2023-11-26 10:41:43,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1270 transitions. [2023-11-26 10:41:43,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:41:43,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1270 transitions. [2023-11-26 10:41:43,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 423.3333333333333) internal successors, (1270), 3 states have internal predecessors, (1270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:43,075 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:43,076 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 478.0) internal successors, (1912), 4 states have internal predecessors, (1912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:43,076 INFO L175 Difference]: Start difference. First operand has 226 places, 218 transitions, 533 flow. Second operand 3 states and 1270 transitions. [2023-11-26 10:41:43,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 217 transitions, 561 flow [2023-11-26 10:41:43,079 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 217 transitions, 557 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:41:43,081 INFO L231 Difference]: Finished difference. Result has 225 places, 0 transitions, 0 flow [2023-11-26 10:41:43,081 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=478, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=225, PETRI_TRANSITIONS=0} [2023-11-26 10:41:43,082 INFO L281 CegarLoopForPetriNet]: 310 programPoint places, -85 predicate places. [2023-11-26 10:41:43,082 INFO L495 AbstractCegarLoop]: Abstraction has has 225 places, 0 transitions, 0 flow [2023-11-26 10:41:43,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 420.6666666666667) internal successors, (1262), 3 states have internal predecessors, (1262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:41:43,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (35 of 36 remaining) [2023-11-26 10:41:43,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2023-11-26 10:41:43,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2023-11-26 10:41:43,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2023-11-26 10:41:43,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2023-11-26 10:41:43,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2023-11-26 10:41:43,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2023-11-26 10:41:43,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2023-11-26 10:41:43,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2023-11-26 10:41:43,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 36 remaining) [2023-11-26 10:41:43,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2023-11-26 10:41:43,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2023-11-26 10:41:43,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2023-11-26 10:41:43,088 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2023-11-26 10:41:43,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2023-11-26 10:41:43,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2023-11-26 10:41:43,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2023-11-26 10:41:43,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2023-11-26 10:41:43,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2023-11-26 10:41:43,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2023-11-26 10:41:43,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2023-11-26 10:41:43,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 36 remaining) [2023-11-26 10:41:43,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2023-11-26 10:41:43,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2023-11-26 10:41:43,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2023-11-26 10:41:43,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2023-11-26 10:41:43,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2023-11-26 10:41:43,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2023-11-26 10:41:43,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2023-11-26 10:41:43,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2023-11-26 10:41:43,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2023-11-26 10:41:43,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2023-11-26 10:41:43,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2023-11-26 10:41:43,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2023-11-26 10:41:43,092 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2023-11-26 10:41:43,093 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 36 remaining) [2023-11-26 10:41:43,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-26 10:41:43,093 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:41:43,101 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 10:41:43,101 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:41:43,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:41:43 BasicIcfg [2023-11-26 10:41:43,108 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:41:43,109 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:41:43,109 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:41:43,109 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:41:43,110 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:41:27" (3/4) ... [2023-11-26 10:41:43,111 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 10:41:43,115 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_ath9k [2023-11-26 10:41:43,115 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_usb [2023-11-26 10:41:43,123 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-26 10:41:43,123 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-26 10:41:43,124 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 10:41:43,124 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 10:41:43,243 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa50bd-cfb8-429b-be35-522ef56242e2/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 10:41:43,244 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa50bd-cfb8-429b-be35-522ef56242e2/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 10:41:43,244 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:41:43,245 INFO L158 Benchmark]: Toolchain (without parser) took 18443.10ms. Allocated memory was 161.5MB in the beginning and 750.8MB in the end (delta: 589.3MB). Free memory was 130.3MB in the beginning and 593.8MB in the end (delta: -463.5MB). Peak memory consumption was 125.5MB. Max. memory is 16.1GB. [2023-11-26 10:41:43,245 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:41:43,245 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1231.77ms. Allocated memory is still 161.5MB. Free memory was 130.3MB in the beginning and 72.4MB in the end (delta: 58.0MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2023-11-26 10:41:43,245 INFO L158 Benchmark]: Boogie Procedure Inliner took 180.14ms. Allocated memory is still 161.5MB. Free memory was 72.4MB in the beginning and 124.2MB in the end (delta: -51.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:41:43,246 INFO L158 Benchmark]: Boogie Preprocessor took 97.90ms. Allocated memory is still 161.5MB. Free memory was 124.2MB in the beginning and 120.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:41:43,246 INFO L158 Benchmark]: RCFGBuilder took 1052.46ms. Allocated memory is still 161.5MB. Free memory was 120.0MB in the beginning and 88.5MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-26 10:41:43,247 INFO L158 Benchmark]: TraceAbstraction took 15737.26ms. Allocated memory was 161.5MB in the beginning and 750.8MB in the end (delta: 589.3MB). Free memory was 87.5MB in the beginning and 600.1MB in the end (delta: -512.6MB). Peak memory consumption was 78.8MB. Max. memory is 16.1GB. [2023-11-26 10:41:43,247 INFO L158 Benchmark]: Witness Printer took 135.15ms. Allocated memory is still 750.8MB. Free memory was 600.1MB in the beginning and 593.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 10:41:43,249 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 95.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1231.77ms. Allocated memory is still 161.5MB. Free memory was 130.3MB in the beginning and 72.4MB in the end (delta: 58.0MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 180.14ms. Allocated memory is still 161.5MB. Free memory was 72.4MB in the beginning and 124.2MB in the end (delta: -51.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 97.90ms. Allocated memory is still 161.5MB. Free memory was 124.2MB in the beginning and 120.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1052.46ms. Allocated memory is still 161.5MB. Free memory was 120.0MB in the beginning and 88.5MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 15737.26ms. Allocated memory was 161.5MB in the beginning and 750.8MB in the end (delta: 589.3MB). Free memory was 87.5MB in the beginning and 600.1MB in the end (delta: -512.6MB). Peak memory consumption was 78.8MB. Max. memory is 16.1GB. * Witness Printer took 135.15ms. Allocated memory is still 750.8MB. Free memory was 600.1MB in the beginning and 593.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. 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: 1759]: 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: 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, 484 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: 15.5s, OverallIterations: 19, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1342 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 553 mSDsluCounter, 257 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 99 mSDsCounter, 151 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1650 IncrementalHoareTripleChecker+Invalid, 1801 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 151 mSolverCounterUnsat, 158 mSDtfsCounter, 1650 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=935occurred 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, 0.2s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 1658 NumberOfCodeBlocks, 1658 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1639 ConstructedInterpolants, 0 QuantifiedInterpolants, 1953 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 46/46 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! [2023-11-26 10:41:43,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_85aa50bd-cfb8-429b-be35-522ef56242e2/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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