./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 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e704682-8e91-4144-9574-8a717507467c/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e704682-8e91-4144-9574-8a717507467c/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e704682-8e91-4144-9574-8a717507467c/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e704682-8e91-4144-9574-8a717507467c/bin/uautomizer-ug76WZFUDN/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_7e704682-8e91-4144-9574-8a717507467c/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e704682-8e91-4144-9574-8a717507467c/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:21:21,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:21:21,670 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:21:21,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:21:21,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:21:21,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:21:21,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:21:21,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:21:21,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:21:21,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:21:21,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:21:21,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:21:21,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:21:21,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:21:21,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:21:21,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:21:21,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:21:21,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:21:21,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:21:21,743 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:21:21,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:21:21,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:21:21,751 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:21:21,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:21:21,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:21:21,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:21:21,759 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:21:21,760 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:21:21,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:21:21,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:21:21,762 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:21:21,763 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:21:21,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:21:21,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:21:21,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:21:21,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:21:21,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:21:21,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:21:21,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:21:21,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:21:21,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:21:21,771 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e704682-8e91-4144-9574-8a717507467c/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 12:21:21,811 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:21:21,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:21:21,815 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:21:21,815 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:21:21,816 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:21:21,817 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:21:21,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:21:21,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:21:21,818 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:21:21,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:21:21,820 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:21:21,820 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:21:21,820 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:21:21,820 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:21:21,821 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:21:21,821 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:21:21,821 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:21:21,821 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:21:21,821 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 12:21:21,822 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:21:21,822 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:21:21,822 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:21:21,822 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:21:21,823 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:21:21,823 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:21:21,823 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:21:21,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:21:21,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:21:21,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:21:21,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:21:21,824 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:21:21,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:21:21,825 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:21:21,825 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:21:21,826 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:21:21,826 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e704682-8e91-4144-9574-8a717507467c/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e704682-8e91-4144-9574-8a717507467c/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d [2022-11-20 12:21:22,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:21:22,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:21:22,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:21:22,207 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:21:22,208 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:21:22,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e704682-8e91-4144-9574-8a717507467c/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2022-11-20 12:21:25,836 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:21:26,336 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:21:26,337 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e704682-8e91-4144-9574-8a717507467c/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2022-11-20 12:21:26,365 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e704682-8e91-4144-9574-8a717507467c/bin/uautomizer-ug76WZFUDN/data/204229319/6792eb55c2994fd5ae232e5e4b332e41/FLAG3cc3a9988 [2022-11-20 12:21:26,484 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e704682-8e91-4144-9574-8a717507467c/bin/uautomizer-ug76WZFUDN/data/204229319/6792eb55c2994fd5ae232e5e4b332e41 [2022-11-20 12:21:26,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:21:26,490 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:21:26,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:21:26,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:21:26,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:21:26,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:21:26" (1/1) ... [2022-11-20 12:21:26,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3344cd05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:26, skipping insertion in model container [2022-11-20 12:21:26,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:21:26" (1/1) ... [2022-11-20 12:21:26,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:21:26,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:21:27,588 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e704682-8e91-4144-9574-8a717507467c/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2022-11-20 12:21:27,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:21:27,670 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:21:27,796 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e704682-8e91-4144-9574-8a717507467c/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2022-11-20 12:21:27,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:21:28,018 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:21:28,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:28 WrapperNode [2022-11-20 12:21:28,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:21:28,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:21:28,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:21:28,021 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:21:28,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:28" (1/1) ... [2022-11-20 12:21:28,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:28" (1/1) ... [2022-11-20 12:21:28,206 INFO L138 Inliner]: procedures = 486, calls = 43, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 265 [2022-11-20 12:21:28,206 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:21:28,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:21:28,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:21:28,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:21:28,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:28" (1/1) ... [2022-11-20 12:21:28,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:28" (1/1) ... [2022-11-20 12:21:28,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:28" (1/1) ... [2022-11-20 12:21:28,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:28" (1/1) ... [2022-11-20 12:21:28,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:28" (1/1) ... [2022-11-20 12:21:28,287 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:28" (1/1) ... [2022-11-20 12:21:28,300 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:28" (1/1) ... [2022-11-20 12:21:28,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:28" (1/1) ... [2022-11-20 12:21:28,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:21:28,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:21:28,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:21:28,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:21:28,316 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:28" (1/1) ... [2022-11-20 12:21:28,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:21:28,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e704682-8e91-4144-9574-8a717507467c/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:21:28,377 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e704682-8e91-4144-9574-8a717507467c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:21:28,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e704682-8e91-4144-9574-8a717507467c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:21:28,419 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2022-11-20 12:21:28,420 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2022-11-20 12:21:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:21:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:21:28,420 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2022-11-20 12:21:28,423 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2022-11-20 12:21:28,428 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 12:21:28,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:21:28,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:21:28,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:21:28,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:21:28,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:21:28,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:21:28,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:21:28,432 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:21:28,871 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:21:28,874 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:21:29,433 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:21:29,455 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:21:29,464 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 12:21:29,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:21:29 BoogieIcfgContainer [2022-11-20 12:21:29,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:21:29,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:21:29,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:21:29,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:21:29,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:21:26" (1/3) ... [2022-11-20 12:21:29,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bed5449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:21:29, skipping insertion in model container [2022-11-20 12:21:29,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:21:28" (2/3) ... [2022-11-20 12:21:29,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bed5449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:21:29, skipping insertion in model container [2022-11-20 12:21:29,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:21:29" (3/3) ... [2022-11-20 12:21:29,480 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2022-11-20 12:21:29,492 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:21:29,506 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:21:29,506 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-11-20 12:21:29,507 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:21:29,632 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-11-20 12:21:29,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 418 places, 448 transitions, 926 flow [2022-11-20 12:21:29,928 INFO L130 PetriNetUnfolder]: 33/459 cut-off events. [2022-11-20 12:21:29,928 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-20 12:21:29,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 471 conditions, 459 events. 33/459 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1272 event pairs, 0 based on Foata normal form. 0/391 useless extension candidates. Maximal degree in co-relation 312. Up to 11 conditions per place. [2022-11-20 12:21:29,940 INFO L82 GeneralOperation]: Start removeDead. Operand has 418 places, 448 transitions, 926 flow [2022-11-20 12:21:29,950 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 293 places, 310 transitions, 637 flow [2022-11-20 12:21:29,962 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:21:29,970 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@30a65ef3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:21:29,971 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2022-11-20 12:21:29,979 INFO L130 PetriNetUnfolder]: 0/34 cut-off events. [2022-11-20 12:21:29,979 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:21:29,979 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:21:29,980 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:21:29,981 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 12:21:29,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:21:29,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1569217505, now seen corresponding path program 1 times [2022-11-20 12:21:30,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:21:30,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948120852] [2022-11-20 12:21:30,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:21:30,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:21:30,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:21:30,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:21:30,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:21:30,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948120852] [2022-11-20 12:21:30,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948120852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:21:30,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:21:30,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:21:30,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062284780] [2022-11-20 12:21:30,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:21:30,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:21:30,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:21:30,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:21:30,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:21:30,622 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 448 [2022-11-20 12:21:30,633 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 310 transitions, 637 flow. Second operand has 3 states, 3 states have (on average 368.3333333333333) internal successors, (1105), 3 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:30,633 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:21:30,633 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 448 [2022-11-20 12:21:30,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:21:31,063 INFO L130 PetriNetUnfolder]: 118/919 cut-off events. [2022-11-20 12:21:31,064 INFO L131 PetriNetUnfolder]: For 29/35 co-relation queries the response was YES. [2022-11-20 12:21:31,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1163 conditions, 919 events. 118/919 cut-off events. For 29/35 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 4482 event pairs, 78 based on Foata normal form. 52/819 useless extension candidates. Maximal degree in co-relation 862. Up to 224 conditions per place. [2022-11-20 12:21:31,082 INFO L137 encePairwiseOnDemand]: 435/448 looper letters, 41 selfloop transitions, 2 changer transitions 2/293 dead transitions. [2022-11-20 12:21:31,082 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 293 transitions, 689 flow [2022-11-20 12:21:31,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:21:31,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:21:31,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1155 transitions. [2022-11-20 12:21:31,114 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.859375 [2022-11-20 12:21:31,116 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1155 transitions. [2022-11-20 12:21:31,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1155 transitions. [2022-11-20 12:21:31,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:21:31,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1155 transitions. [2022-11-20 12:21:31,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 385.0) internal successors, (1155), 3 states have internal predecessors, (1155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:31,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:31,147 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:31,149 INFO L175 Difference]: Start difference. First operand has 293 places, 310 transitions, 637 flow. Second operand 3 states and 1155 transitions. [2022-11-20 12:21:31,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 293 transitions, 689 flow [2022-11-20 12:21:31,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 286 places, 293 transitions, 685 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:21:31,172 INFO L231 Difference]: Finished difference. Result has 286 places, 291 transitions, 599 flow [2022-11-20 12:21:31,174 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=599, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=599, PETRI_PLACES=286, PETRI_TRANSITIONS=291} [2022-11-20 12:21:31,181 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -7 predicate places. [2022-11-20 12:21:31,182 INFO L495 AbstractCegarLoop]: Abstraction has has 286 places, 291 transitions, 599 flow [2022-11-20 12:21:31,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 368.3333333333333) internal successors, (1105), 3 states have internal predecessors, (1105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:31,183 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:21:31,184 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:21:31,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:21:31,184 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 12:21:31,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:21:31,185 INFO L85 PathProgramCache]: Analyzing trace with hash -2133964260, now seen corresponding path program 1 times [2022-11-20 12:21:31,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:21:31,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322069099] [2022-11-20 12:21:31,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:21:31,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:21:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:21:31,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:21:31,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:21:31,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322069099] [2022-11-20 12:21:31,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322069099] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:21:31,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:21:31,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:21:31,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944258960] [2022-11-20 12:21:31,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:21:31,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:21:31,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:21:31,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:21:31,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:21:31,433 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 448 [2022-11-20 12:21:31,435 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 291 transitions, 599 flow. Second operand has 3 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:31,441 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:21:31,441 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 448 [2022-11-20 12:21:31,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:21:31,809 INFO L130 PetriNetUnfolder]: 129/1107 cut-off events. [2022-11-20 12:21:31,809 INFO L131 PetriNetUnfolder]: For 16/21 co-relation queries the response was YES. [2022-11-20 12:21:31,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1365 conditions, 1107 events. 129/1107 cut-off events. For 16/21 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 6007 event pairs, 31 based on Foata normal form. 1/958 useless extension candidates. Maximal degree in co-relation 1321. Up to 130 conditions per place. [2022-11-20 12:21:31,822 INFO L137 encePairwiseOnDemand]: 428/448 looper letters, 39 selfloop transitions, 14 changer transitions 0/304 dead transitions. [2022-11-20 12:21:31,822 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 304 transitions, 732 flow [2022-11-20 12:21:31,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:21:31,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:21:31,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1169 transitions. [2022-11-20 12:21:31,827 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8697916666666666 [2022-11-20 12:21:31,827 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1169 transitions. [2022-11-20 12:21:31,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1169 transitions. [2022-11-20 12:21:31,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:21:31,828 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1169 transitions. [2022-11-20 12:21:31,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 389.6666666666667) internal successors, (1169), 3 states have internal predecessors, (1169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:31,834 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:31,837 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:31,837 INFO L175 Difference]: Start difference. First operand has 286 places, 291 transitions, 599 flow. Second operand 3 states and 1169 transitions. [2022-11-20 12:21:31,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 304 transitions, 732 flow [2022-11-20 12:21:31,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 304 transitions, 728 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:21:31,849 INFO L231 Difference]: Finished difference. Result has 283 places, 297 transitions, 687 flow [2022-11-20 12:21:31,850 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=589, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=687, PETRI_PLACES=283, PETRI_TRANSITIONS=297} [2022-11-20 12:21:31,851 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -10 predicate places. [2022-11-20 12:21:31,851 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 297 transitions, 687 flow [2022-11-20 12:21:31,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:31,852 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:21:31,853 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:21:31,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:21:31,854 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 12:21:31,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:21:31,856 INFO L85 PathProgramCache]: Analyzing trace with hash 2057185241, now seen corresponding path program 1 times [2022-11-20 12:21:31,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:21:31,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131037800] [2022-11-20 12:21:31,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:21:31,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:21:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:21:32,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:21:32,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:21:32,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131037800] [2022-11-20 12:21:32,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131037800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:21:32,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:21:32,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:21:32,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256079875] [2022-11-20 12:21:32,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:21:32,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:21:32,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:21:32,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:21:32,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:21:32,039 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 448 [2022-11-20 12:21:32,041 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 297 transitions, 687 flow. Second operand has 3 states, 3 states have (on average 369.6666666666667) internal successors, (1109), 3 states have internal predecessors, (1109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:32,042 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:21:32,042 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 448 [2022-11-20 12:21:32,042 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:21:32,355 INFO L130 PetriNetUnfolder]: 127/1029 cut-off events. [2022-11-20 12:21:32,355 INFO L131 PetriNetUnfolder]: For 237/269 co-relation queries the response was YES. [2022-11-20 12:21:32,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1510 conditions, 1029 events. 127/1029 cut-off events. For 237/269 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 5356 event pairs, 52 based on Foata normal form. 0/894 useless extension candidates. Maximal degree in co-relation 1204. Up to 247 conditions per place. [2022-11-20 12:21:32,368 INFO L137 encePairwiseOnDemand]: 445/448 looper letters, 46 selfloop transitions, 2 changer transitions 0/296 dead transitions. [2022-11-20 12:21:32,369 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 296 transitions, 781 flow [2022-11-20 12:21:32,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:21:32,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:21:32,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1141 transitions. [2022-11-20 12:21:32,374 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8489583333333334 [2022-11-20 12:21:32,374 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1141 transitions. [2022-11-20 12:21:32,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1141 transitions. [2022-11-20 12:21:32,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:21:32,376 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1141 transitions. [2022-11-20 12:21:32,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 380.3333333333333) internal successors, (1141), 3 states have internal predecessors, (1141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:32,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:32,385 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:32,385 INFO L175 Difference]: Start difference. First operand has 283 places, 297 transitions, 687 flow. Second operand 3 states and 1141 transitions. [2022-11-20 12:21:32,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 296 transitions, 781 flow [2022-11-20 12:21:32,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 296 transitions, 753 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:21:32,400 INFO L231 Difference]: Finished difference. Result has 282 places, 296 transitions, 661 flow [2022-11-20 12:21:32,400 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=657, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=296, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=661, PETRI_PLACES=282, PETRI_TRANSITIONS=296} [2022-11-20 12:21:32,403 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -11 predicate places. [2022-11-20 12:21:32,404 INFO L495 AbstractCegarLoop]: Abstraction has has 282 places, 296 transitions, 661 flow [2022-11-20 12:21:32,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 369.6666666666667) internal successors, (1109), 3 states have internal predecessors, (1109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:32,405 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:21:32,406 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:21:32,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 12:21:32,408 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread_usbErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 12:21:32,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:21:32,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1472515541, now seen corresponding path program 1 times [2022-11-20 12:21:32,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:21:32,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888142248] [2022-11-20 12:21:32,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:21:32,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:21:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:21:32,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:21:32,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:21:32,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888142248] [2022-11-20 12:21:32,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888142248] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:21:32,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:21:32,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:21:32,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555036496] [2022-11-20 12:21:32,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:21:32,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:21:32,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:21:32,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:21:32,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:21:32,578 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 448 [2022-11-20 12:21:32,580 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 296 transitions, 661 flow. Second operand has 3 states, 3 states have (on average 384.3333333333333) internal successors, (1153), 3 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:32,580 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:21:32,580 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 448 [2022-11-20 12:21:32,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:21:32,864 INFO L130 PetriNetUnfolder]: 59/800 cut-off events. [2022-11-20 12:21:32,864 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-20 12:21:32,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 943 conditions, 800 events. 59/800 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3544 event pairs, 9 based on Foata normal form. 0/701 useless extension candidates. Maximal degree in co-relation 901. Up to 57 conditions per place. [2022-11-20 12:21:32,873 INFO L137 encePairwiseOnDemand]: 445/448 looper letters, 22 selfloop transitions, 2 changer transitions 0/295 dead transitions. [2022-11-20 12:21:32,873 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 295 transitions, 707 flow [2022-11-20 12:21:32,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:21:32,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:21:32,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1174 transitions. [2022-11-20 12:21:32,878 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8735119047619048 [2022-11-20 12:21:32,878 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1174 transitions. [2022-11-20 12:21:32,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1174 transitions. [2022-11-20 12:21:32,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:21:32,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1174 transitions. [2022-11-20 12:21:32,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 391.3333333333333) internal successors, (1174), 3 states have internal predecessors, (1174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:32,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:32,896 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:32,896 INFO L175 Difference]: Start difference. First operand has 282 places, 296 transitions, 661 flow. Second operand 3 states and 1174 transitions. [2022-11-20 12:21:32,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 295 transitions, 707 flow [2022-11-20 12:21:32,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 295 transitions, 703 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:21:32,907 INFO L231 Difference]: Finished difference. Result has 281 places, 295 transitions, 659 flow [2022-11-20 12:21:32,911 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=655, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=295, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=293, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=659, PETRI_PLACES=281, PETRI_TRANSITIONS=295} [2022-11-20 12:21:32,913 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -12 predicate places. [2022-11-20 12:21:32,913 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 295 transitions, 659 flow [2022-11-20 12:21:32,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 384.3333333333333) internal successors, (1153), 3 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:32,915 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:21:32,915 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:21:32,916 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 12:21:32,917 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_usbErr1ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 12:21:32,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:21:32,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1930764962, now seen corresponding path program 1 times [2022-11-20 12:21:32,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:21:32,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435329417] [2022-11-20 12:21:32,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:21:32,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:21:32,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:21:33,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:21:33,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:21:33,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435329417] [2022-11-20 12:21:33,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435329417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:21:33,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:21:33,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:21:33,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103783738] [2022-11-20 12:21:33,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:21:33,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:21:33,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:21:33,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:21:33,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:21:33,075 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 448 [2022-11-20 12:21:33,077 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 295 transitions, 659 flow. Second operand has 3 states, 3 states have (on average 386.6666666666667) internal successors, (1160), 3 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:33,078 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:21:33,078 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 448 [2022-11-20 12:21:33,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:21:33,274 INFO L130 PetriNetUnfolder]: 64/830 cut-off events. [2022-11-20 12:21:33,274 INFO L131 PetriNetUnfolder]: For 9/9 co-relation queries the response was YES. [2022-11-20 12:21:33,280 INFO L83 FinitePrefix]: Finished finitePrefix Result has 971 conditions, 830 events. 64/830 cut-off events. For 9/9 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 3758 event pairs, 9 based on Foata normal form. 0/731 useless extension candidates. Maximal degree in co-relation 863. Up to 57 conditions per place. [2022-11-20 12:21:33,284 INFO L137 encePairwiseOnDemand]: 440/448 looper letters, 17 selfloop transitions, 5 changer transitions 0/295 dead transitions. [2022-11-20 12:21:33,284 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 295 transitions, 703 flow [2022-11-20 12:21:33,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:21:33,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:21:33,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1180 transitions. [2022-11-20 12:21:33,288 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8779761904761905 [2022-11-20 12:21:33,289 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1180 transitions. [2022-11-20 12:21:33,289 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1180 transitions. [2022-11-20 12:21:33,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:21:33,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1180 transitions. [2022-11-20 12:21:33,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 393.3333333333333) internal successors, (1180), 3 states have internal predecessors, (1180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:33,297 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:33,299 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:33,299 INFO L175 Difference]: Start difference. First operand has 281 places, 295 transitions, 659 flow. Second operand 3 states and 1180 transitions. [2022-11-20 12:21:33,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 295 transitions, 703 flow [2022-11-20 12:21:33,303 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 295 transitions, 699 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:21:33,308 INFO L231 Difference]: Finished difference. Result has 279 places, 295 transitions, 676 flow [2022-11-20 12:21:33,309 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=649, PETRI_DIFFERENCE_MINUEND_PLACES=276, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=292, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=676, PETRI_PLACES=279, PETRI_TRANSITIONS=295} [2022-11-20 12:21:33,312 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -14 predicate places. [2022-11-20 12:21:33,312 INFO L495 AbstractCegarLoop]: Abstraction has has 279 places, 295 transitions, 676 flow [2022-11-20 12:21:33,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 386.6666666666667) internal successors, (1160), 3 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:33,314 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:21:33,315 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:21:33,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 12:21:33,315 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 12:21:33,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:21:33,317 INFO L85 PathProgramCache]: Analyzing trace with hash -404858912, now seen corresponding path program 1 times [2022-11-20 12:21:33,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:21:33,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274888736] [2022-11-20 12:21:33,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:21:33,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:21:33,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:21:34,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:21:34,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:21:34,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274888736] [2022-11-20 12:21:34,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274888736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:21:34,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:21:34,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:21:34,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501238353] [2022-11-20 12:21:34,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:21:34,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:21:34,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:21:34,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:21:34,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:21:34,099 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 396 out of 448 [2022-11-20 12:21:34,103 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 295 transitions, 676 flow. Second operand has 6 states, 6 states have (on average 397.6666666666667) internal successors, (2386), 6 states have internal predecessors, (2386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:34,103 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:21:34,103 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 396 of 448 [2022-11-20 12:21:34,103 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:21:34,691 INFO L130 PetriNetUnfolder]: 228/1716 cut-off events. [2022-11-20 12:21:34,691 INFO L131 PetriNetUnfolder]: For 41/50 co-relation queries the response was YES. [2022-11-20 12:21:34,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2196 conditions, 1716 events. 228/1716 cut-off events. For 41/50 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 9959 event pairs, 41 based on Foata normal form. 4/1503 useless extension candidates. Maximal degree in co-relation 969. Up to 92 conditions per place. [2022-11-20 12:21:34,706 INFO L137 encePairwiseOnDemand]: 443/448 looper letters, 52 selfloop transitions, 4 changer transitions 16/330 dead transitions. [2022-11-20 12:21:34,706 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 330 transitions, 894 flow [2022-11-20 12:21:34,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:21:34,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:21:34,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2433 transitions. [2022-11-20 12:21:34,712 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9051339285714286 [2022-11-20 12:21:34,712 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2433 transitions. [2022-11-20 12:21:34,713 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2433 transitions. [2022-11-20 12:21:34,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:21:34,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2433 transitions. [2022-11-20 12:21:34,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 405.5) internal successors, (2433), 6 states have internal predecessors, (2433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:34,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 448.0) internal successors, (3136), 7 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:34,728 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 448.0) internal successors, (3136), 7 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:34,728 INFO L175 Difference]: Start difference. First operand has 279 places, 295 transitions, 676 flow. Second operand 6 states and 2433 transitions. [2022-11-20 12:21:34,728 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 330 transitions, 894 flow [2022-11-20 12:21:34,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 330 transitions, 889 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 12:21:34,736 INFO L231 Difference]: Finished difference. Result has 282 places, 278 transitions, 641 flow [2022-11-20 12:21:34,736 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=669, PETRI_DIFFERENCE_MINUEND_PLACES=277, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=641, PETRI_PLACES=282, PETRI_TRANSITIONS=278} [2022-11-20 12:21:34,737 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -11 predicate places. [2022-11-20 12:21:34,737 INFO L495 AbstractCegarLoop]: Abstraction has has 282 places, 278 transitions, 641 flow [2022-11-20 12:21:34,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 397.6666666666667) internal successors, (2386), 6 states have internal predecessors, (2386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:34,739 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:21:34,739 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:21:34,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 12:21:34,740 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread_usbErr9ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 12:21:34,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:21:34,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1637431561, now seen corresponding path program 1 times [2022-11-20 12:21:34,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:21:34,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860443319] [2022-11-20 12:21:34,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:21:34,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:21:34,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:21:34,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:21:34,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:21:34,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860443319] [2022-11-20 12:21:34,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860443319] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:21:34,822 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:21:34,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:21:34,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769347709] [2022-11-20 12:21:34,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:21:34,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:21:34,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:21:34,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:21:34,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:21:34,828 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 448 [2022-11-20 12:21:34,829 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 278 transitions, 641 flow. Second operand has 3 states, 3 states have (on average 370.6666666666667) internal successors, (1112), 3 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:34,830 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:21:34,830 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 448 [2022-11-20 12:21:34,830 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:21:35,115 INFO L130 PetriNetUnfolder]: 157/1114 cut-off events. [2022-11-20 12:21:35,116 INFO L131 PetriNetUnfolder]: For 102/117 co-relation queries the response was YES. [2022-11-20 12:21:35,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1587 conditions, 1114 events. 157/1114 cut-off events. For 102/117 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6026 event pairs, 48 based on Foata normal form. 1/965 useless extension candidates. Maximal degree in co-relation 1497. Up to 256 conditions per place. [2022-11-20 12:21:35,126 INFO L137 encePairwiseOnDemand]: 442/448 looper letters, 46 selfloop transitions, 7 changer transitions 1/288 dead transitions. [2022-11-20 12:21:35,126 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 288 transitions, 779 flow [2022-11-20 12:21:35,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:21:35,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:21:35,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1147 transitions. [2022-11-20 12:21:35,130 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8534226190476191 [2022-11-20 12:21:35,130 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1147 transitions. [2022-11-20 12:21:35,130 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1147 transitions. [2022-11-20 12:21:35,131 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:21:35,132 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1147 transitions. [2022-11-20 12:21:35,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 382.3333333333333) internal successors, (1147), 3 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:35,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:35,140 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:35,140 INFO L175 Difference]: Start difference. First operand has 282 places, 278 transitions, 641 flow. Second operand 3 states and 1147 transitions. [2022-11-20 12:21:35,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 288 transitions, 779 flow [2022-11-20 12:21:35,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 288 transitions, 772 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 12:21:35,147 INFO L231 Difference]: Finished difference. Result has 267 places, 282 transitions, 688 flow [2022-11-20 12:21:35,148 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=271, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=688, PETRI_PLACES=267, PETRI_TRANSITIONS=282} [2022-11-20 12:21:35,149 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -26 predicate places. [2022-11-20 12:21:35,149 INFO L495 AbstractCegarLoop]: Abstraction has has 267 places, 282 transitions, 688 flow [2022-11-20 12:21:35,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.6666666666667) internal successors, (1112), 3 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:35,150 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:21:35,150 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:21:35,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 12:21:35,150 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 12:21:35,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:21:35,151 INFO L85 PathProgramCache]: Analyzing trace with hash 536221650, now seen corresponding path program 1 times [2022-11-20 12:21:35,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:21:35,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097560658] [2022-11-20 12:21:35,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:21:35,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:21:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:21:35,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:21:35,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:21:35,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097560658] [2022-11-20 12:21:35,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097560658] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:21:35,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:21:35,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:21:35,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077695653] [2022-11-20 12:21:35,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:21:35,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:21:35,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:21:35,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:21:35,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:21:35,287 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 448 [2022-11-20 12:21:35,288 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 282 transitions, 688 flow. Second operand has 3 states, 3 states have (on average 401.3333333333333) internal successors, (1204), 3 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:35,289 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:21:35,289 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 448 [2022-11-20 12:21:35,289 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:21:35,465 INFO L130 PetriNetUnfolder]: 87/938 cut-off events. [2022-11-20 12:21:35,465 INFO L131 PetriNetUnfolder]: For 70/78 co-relation queries the response was YES. [2022-11-20 12:21:35,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1188 conditions, 938 events. 87/938 cut-off events. For 70/78 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 4643 event pairs, 10 based on Foata normal form. 0/827 useless extension candidates. Maximal degree in co-relation 1103. Up to 64 conditions per place. [2022-11-20 12:21:35,476 INFO L137 encePairwiseOnDemand]: 440/448 looper letters, 13 selfloop transitions, 5 changer transitions 0/285 dead transitions. [2022-11-20 12:21:35,476 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 285 transitions, 730 flow [2022-11-20 12:21:35,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:21:35,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:21:35,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1221 transitions. [2022-11-20 12:21:35,480 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9084821428571429 [2022-11-20 12:21:35,480 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1221 transitions. [2022-11-20 12:21:35,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1221 transitions. [2022-11-20 12:21:35,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:21:35,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1221 transitions. [2022-11-20 12:21:35,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 407.0) internal successors, (1221), 3 states have internal predecessors, (1221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:35,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:35,488 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:35,488 INFO L175 Difference]: Start difference. First operand has 267 places, 282 transitions, 688 flow. Second operand 3 states and 1221 transitions. [2022-11-20 12:21:35,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 285 transitions, 730 flow [2022-11-20 12:21:35,491 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 285 transitions, 716 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:21:35,495 INFO L231 Difference]: Finished difference. Result has 268 places, 284 transitions, 708 flow [2022-11-20 12:21:35,496 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=264, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=708, PETRI_PLACES=268, PETRI_TRANSITIONS=284} [2022-11-20 12:21:35,497 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -25 predicate places. [2022-11-20 12:21:35,497 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 284 transitions, 708 flow [2022-11-20 12:21:35,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 401.3333333333333) internal successors, (1204), 3 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:35,498 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:21:35,498 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:21:35,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 12:21:35,499 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 12:21:35,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:21:35,499 INFO L85 PathProgramCache]: Analyzing trace with hash 270343756, now seen corresponding path program 1 times [2022-11-20 12:21:35,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:21:35,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892898203] [2022-11-20 12:21:35,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:21:35,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:21:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:21:35,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:21:35,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:21:35,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892898203] [2022-11-20 12:21:35,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892898203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:21:35,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:21:35,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:21:35,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368951238] [2022-11-20 12:21:35,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:21:35,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:21:35,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:21:35,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:21:35,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:21:35,591 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 448 [2022-11-20 12:21:35,592 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 284 transitions, 708 flow. Second operand has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:35,592 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:21:35,593 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 448 [2022-11-20 12:21:35,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:21:35,917 INFO L130 PetriNetUnfolder]: 210/1370 cut-off events. [2022-11-20 12:21:35,918 INFO L131 PetriNetUnfolder]: For 183/230 co-relation queries the response was YES. [2022-11-20 12:21:35,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2078 conditions, 1370 events. 210/1370 cut-off events. For 183/230 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 8093 event pairs, 60 based on Foata normal form. 2/1215 useless extension candidates. Maximal degree in co-relation 1987. Up to 310 conditions per place. [2022-11-20 12:21:35,931 INFO L137 encePairwiseOnDemand]: 440/448 looper letters, 56 selfloop transitions, 11 changer transitions 0/303 dead transitions. [2022-11-20 12:21:35,932 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 303 transitions, 911 flow [2022-11-20 12:21:35,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:21:35,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:21:35,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1152 transitions. [2022-11-20 12:21:35,935 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8571428571428571 [2022-11-20 12:21:35,935 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1152 transitions. [2022-11-20 12:21:35,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1152 transitions. [2022-11-20 12:21:35,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:21:35,937 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1152 transitions. [2022-11-20 12:21:35,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 384.0) internal successors, (1152), 3 states have internal predecessors, (1152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:35,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:35,952 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:35,952 INFO L175 Difference]: Start difference. First operand has 268 places, 284 transitions, 708 flow. Second operand 3 states and 1152 transitions. [2022-11-20 12:21:35,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 303 transitions, 911 flow [2022-11-20 12:21:35,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 303 transitions, 901 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:21:35,959 INFO L231 Difference]: Finished difference. Result has 270 places, 291 transitions, 784 flow [2022-11-20 12:21:35,960 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=698, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=273, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=784, PETRI_PLACES=270, PETRI_TRANSITIONS=291} [2022-11-20 12:21:35,961 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -23 predicate places. [2022-11-20 12:21:35,962 INFO L495 AbstractCegarLoop]: Abstraction has has 270 places, 291 transitions, 784 flow [2022-11-20 12:21:35,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:35,963 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:21:35,963 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:21:35,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 12:21:35,963 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread_usbErr2ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 12:21:35,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:21:35,964 INFO L85 PathProgramCache]: Analyzing trace with hash -502986746, now seen corresponding path program 1 times [2022-11-20 12:21:35,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:21:35,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570154886] [2022-11-20 12:21:35,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:21:35,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:21:35,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:21:36,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:21:36,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:21:36,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570154886] [2022-11-20 12:21:36,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570154886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:21:36,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:21:36,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:21:36,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400026783] [2022-11-20 12:21:36,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:21:36,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:21:36,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:21:36,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:21:36,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:21:36,068 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 448 [2022-11-20 12:21:36,069 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 291 transitions, 784 flow. Second operand has 3 states, 3 states have (on average 385.6666666666667) internal successors, (1157), 3 states have internal predecessors, (1157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:36,070 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:21:36,070 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 448 [2022-11-20 12:21:36,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:21:36,290 INFO L130 PetriNetUnfolder]: 110/1072 cut-off events. [2022-11-20 12:21:36,290 INFO L131 PetriNetUnfolder]: For 247/265 co-relation queries the response was YES. [2022-11-20 12:21:36,297 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1533 conditions, 1072 events. 110/1072 cut-off events. For 247/265 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 5854 event pairs, 11 based on Foata normal form. 1/958 useless extension candidates. Maximal degree in co-relation 1446. Up to 82 conditions per place. [2022-11-20 12:21:36,301 INFO L137 encePairwiseOnDemand]: 445/448 looper letters, 21 selfloop transitions, 2 changer transitions 0/290 dead transitions. [2022-11-20 12:21:36,302 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 290 transitions, 828 flow [2022-11-20 12:21:36,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:21:36,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:21:36,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1170 transitions. [2022-11-20 12:21:36,305 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8705357142857143 [2022-11-20 12:21:36,306 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1170 transitions. [2022-11-20 12:21:36,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1170 transitions. [2022-11-20 12:21:36,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:21:36,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1170 transitions. [2022-11-20 12:21:36,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 390.0) internal successors, (1170), 3 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:36,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:36,313 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:36,313 INFO L175 Difference]: Start difference. First operand has 270 places, 291 transitions, 784 flow. Second operand 3 states and 1170 transitions. [2022-11-20 12:21:36,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 290 transitions, 828 flow [2022-11-20 12:21:36,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 290 transitions, 806 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:21:36,321 INFO L231 Difference]: Finished difference. Result has 269 places, 290 transitions, 764 flow [2022-11-20 12:21:36,323 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=764, PETRI_PLACES=269, PETRI_TRANSITIONS=290} [2022-11-20 12:21:36,325 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -24 predicate places. [2022-11-20 12:21:36,325 INFO L495 AbstractCegarLoop]: Abstraction has has 269 places, 290 transitions, 764 flow [2022-11-20 12:21:36,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 385.6666666666667) internal successors, (1157), 3 states have internal predecessors, (1157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:36,326 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:21:36,326 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:21:36,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 12:21:36,327 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 12:21:36,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:21:36,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1470112083, now seen corresponding path program 1 times [2022-11-20 12:21:36,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:21:36,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417679963] [2022-11-20 12:21:36,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:21:36,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:21:36,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:21:36,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:21:36,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:21:36,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417679963] [2022-11-20 12:21:36,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417679963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:21:36,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:21:36,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:21:36,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628365146] [2022-11-20 12:21:36,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:21:36,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:21:36,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:21:36,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:21:36,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:21:36,467 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 367 out of 448 [2022-11-20 12:21:36,468 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 290 transitions, 764 flow. Second operand has 3 states, 3 states have (on average 371.6666666666667) internal successors, (1115), 3 states have internal predecessors, (1115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:36,469 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:21:36,469 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 367 of 448 [2022-11-20 12:21:36,469 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:21:36,917 INFO L130 PetriNetUnfolder]: 352/2121 cut-off events. [2022-11-20 12:21:36,917 INFO L131 PetriNetUnfolder]: For 606/703 co-relation queries the response was YES. [2022-11-20 12:21:36,932 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3378 conditions, 2121 events. 352/2121 cut-off events. For 606/703 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 14574 event pairs, 134 based on Foata normal form. 3/1906 useless extension candidates. Maximal degree in co-relation 2952. Up to 487 conditions per place. [2022-11-20 12:21:36,946 INFO L137 encePairwiseOnDemand]: 442/448 looper letters, 56 selfloop transitions, 9 changer transitions 1/301 dead transitions. [2022-11-20 12:21:36,946 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 301 transitions, 944 flow [2022-11-20 12:21:36,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:21:36,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:21:36,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1145 transitions. [2022-11-20 12:21:36,950 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8519345238095238 [2022-11-20 12:21:36,950 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1145 transitions. [2022-11-20 12:21:36,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1145 transitions. [2022-11-20 12:21:36,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:21:36,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1145 transitions. [2022-11-20 12:21:36,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 381.6666666666667) internal successors, (1145), 3 states have internal predecessors, (1145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:36,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:36,959 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:36,960 INFO L175 Difference]: Start difference. First operand has 269 places, 290 transitions, 764 flow. Second operand 3 states and 1145 transitions. [2022-11-20 12:21:36,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 301 transitions, 944 flow [2022-11-20 12:21:36,964 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 269 places, 301 transitions, 940 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:21:36,969 INFO L231 Difference]: Finished difference. Result has 271 places, 294 transitions, 830 flow [2022-11-20 12:21:36,970 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=760, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=290, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=830, PETRI_PLACES=271, PETRI_TRANSITIONS=294} [2022-11-20 12:21:36,971 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -22 predicate places. [2022-11-20 12:21:36,971 INFO L495 AbstractCegarLoop]: Abstraction has has 271 places, 294 transitions, 830 flow [2022-11-20 12:21:36,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 371.6666666666667) internal successors, (1115), 3 states have internal predecessors, (1115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:36,972 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:21:36,972 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:21:36,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 12:21:36,973 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread_usbErr9ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 12:21:36,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:21:36,973 INFO L85 PathProgramCache]: Analyzing trace with hash -724102068, now seen corresponding path program 1 times [2022-11-20 12:21:36,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:21:36,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388898759] [2022-11-20 12:21:36,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:21:36,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:21:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:21:37,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:21:37,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:21:37,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388898759] [2022-11-20 12:21:37,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388898759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:21:37,171 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:21:37,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:21:37,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400992944] [2022-11-20 12:21:37,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:21:37,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:21:37,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:21:37,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:21:37,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:21:37,176 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 448 [2022-11-20 12:21:37,178 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 294 transitions, 830 flow. Second operand has 5 states, 5 states have (on average 410.0) internal successors, (2050), 5 states have internal predecessors, (2050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:37,179 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:21:37,179 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 448 [2022-11-20 12:21:37,179 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:21:37,919 INFO L130 PetriNetUnfolder]: 355/3059 cut-off events. [2022-11-20 12:21:37,919 INFO L131 PetriNetUnfolder]: For 1181/1238 co-relation queries the response was YES. [2022-11-20 12:21:37,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4675 conditions, 3059 events. 355/3059 cut-off events. For 1181/1238 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 25130 event pairs, 33 based on Foata normal form. 3/2746 useless extension candidates. Maximal degree in co-relation 4587. Up to 271 conditions per place. [2022-11-20 12:21:37,950 INFO L137 encePairwiseOnDemand]: 441/448 looper letters, 26 selfloop transitions, 9 changer transitions 0/314 dead transitions. [2022-11-20 12:21:37,950 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 314 transitions, 951 flow [2022-11-20 12:21:37,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:21:37,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 12:21:37,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2892 transitions. [2022-11-20 12:21:37,959 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9221938775510204 [2022-11-20 12:21:37,959 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2892 transitions. [2022-11-20 12:21:37,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2892 transitions. [2022-11-20 12:21:37,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:21:37,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2892 transitions. [2022-11-20 12:21:37,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 413.14285714285717) internal successors, (2892), 7 states have internal predecessors, (2892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:37,976 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 448.0) internal successors, (3584), 8 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:37,979 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 448.0) internal successors, (3584), 8 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:37,980 INFO L175 Difference]: Start difference. First operand has 271 places, 294 transitions, 830 flow. Second operand 7 states and 2892 transitions. [2022-11-20 12:21:37,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 314 transitions, 951 flow [2022-11-20 12:21:37,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 314 transitions, 927 flow, removed 3 selfloop flow, removed 2 redundant places. [2022-11-20 12:21:37,992 INFO L231 Difference]: Finished difference. Result has 281 places, 302 transitions, 874 flow [2022-11-20 12:21:37,993 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=806, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=874, PETRI_PLACES=281, PETRI_TRANSITIONS=302} [2022-11-20 12:21:37,996 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -12 predicate places. [2022-11-20 12:21:37,996 INFO L495 AbstractCegarLoop]: Abstraction has has 281 places, 302 transitions, 874 flow [2022-11-20 12:21:37,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 410.0) internal successors, (2050), 5 states have internal predecessors, (2050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:37,997 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:21:37,998 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:21:37,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 12:21:37,998 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 12:21:37,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:21:37,999 INFO L85 PathProgramCache]: Analyzing trace with hash -2002311805, now seen corresponding path program 1 times [2022-11-20 12:21:37,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:21:37,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333963422] [2022-11-20 12:21:38,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:21:38,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:21:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:21:38,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:21:38,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:21:38,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333963422] [2022-11-20 12:21:38,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333963422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:21:38,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:21:38,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:21:38,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752343406] [2022-11-20 12:21:38,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:21:38,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:21:38,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:21:38,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:21:38,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:21:38,200 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 448 [2022-11-20 12:21:38,202 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 302 transitions, 874 flow. Second operand has 5 states, 5 states have (on average 409.2) internal successors, (2046), 5 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:38,203 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:21:38,203 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 448 [2022-11-20 12:21:38,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:21:39,330 INFO L130 PetriNetUnfolder]: 467/3954 cut-off events. [2022-11-20 12:21:39,330 INFO L131 PetriNetUnfolder]: For 1205/1281 co-relation queries the response was YES. [2022-11-20 12:21:39,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5950 conditions, 3954 events. 467/3954 cut-off events. For 1205/1281 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 32914 event pairs, 44 based on Foata normal form. 4/3541 useless extension candidates. Maximal degree in co-relation 5857. Up to 356 conditions per place. [2022-11-20 12:21:39,379 INFO L137 encePairwiseOnDemand]: 440/448 looper letters, 23 selfloop transitions, 8 changer transitions 0/317 dead transitions. [2022-11-20 12:21:39,379 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 287 places, 317 transitions, 980 flow [2022-11-20 12:21:39,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:21:39,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-20 12:21:39,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2881 transitions. [2022-11-20 12:21:39,388 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9186862244897959 [2022-11-20 12:21:39,388 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2881 transitions. [2022-11-20 12:21:39,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2881 transitions. [2022-11-20 12:21:39,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:21:39,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2881 transitions. [2022-11-20 12:21:39,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 411.57142857142856) internal successors, (2881), 7 states have internal predecessors, (2881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:39,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 448.0) internal successors, (3584), 8 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:39,407 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 448.0) internal successors, (3584), 8 states have internal predecessors, (3584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:39,407 INFO L175 Difference]: Start difference. First operand has 281 places, 302 transitions, 874 flow. Second operand 7 states and 2881 transitions. [2022-11-20 12:21:39,407 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 287 places, 317 transitions, 980 flow [2022-11-20 12:21:39,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 317 transitions, 980 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 12:21:39,418 INFO L231 Difference]: Finished difference. Result has 292 places, 309 transitions, 932 flow [2022-11-20 12:21:39,419 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=874, PETRI_DIFFERENCE_MINUEND_PLACES=281, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=302, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=932, PETRI_PLACES=292, PETRI_TRANSITIONS=309} [2022-11-20 12:21:39,420 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -1 predicate places. [2022-11-20 12:21:39,421 INFO L495 AbstractCegarLoop]: Abstraction has has 292 places, 309 transitions, 932 flow [2022-11-20 12:21:39,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 409.2) internal successors, (2046), 5 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:39,422 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:21:39,422 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:21:39,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 12:21:39,423 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 12:21:39,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:21:39,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1690822671, now seen corresponding path program 1 times [2022-11-20 12:21:39,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:21:39,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293381959] [2022-11-20 12:21:39,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:21:39,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:21:39,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:21:39,616 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:21:39,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:21:39,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293381959] [2022-11-20 12:21:39,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293381959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:21:39,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:21:39,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:21:39,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830213042] [2022-11-20 12:21:39,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:21:39,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:21:39,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:21:39,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:21:39,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:21:39,622 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 407 out of 448 [2022-11-20 12:21:39,624 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 309 transitions, 932 flow. Second operand has 5 states, 5 states have (on average 409.0) internal successors, (2045), 5 states have internal predecessors, (2045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:39,624 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:21:39,625 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 407 of 448 [2022-11-20 12:21:39,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:21:40,369 INFO L130 PetriNetUnfolder]: 344/2954 cut-off events. [2022-11-20 12:21:40,370 INFO L131 PetriNetUnfolder]: For 929/986 co-relation queries the response was YES. [2022-11-20 12:21:40,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4493 conditions, 2954 events. 344/2954 cut-off events. For 929/986 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 22447 event pairs, 33 based on Foata normal form. 6/2655 useless extension candidates. Maximal degree in co-relation 4395. Up to 267 conditions per place. [2022-11-20 12:21:40,405 INFO L137 encePairwiseOnDemand]: 441/448 looper letters, 22 selfloop transitions, 6 changer transitions 0/314 dead transitions. [2022-11-20 12:21:40,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 296 places, 314 transitions, 1003 flow [2022-11-20 12:21:40,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:21:40,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:21:40,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2469 transitions. [2022-11-20 12:21:40,412 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9185267857142857 [2022-11-20 12:21:40,413 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2469 transitions. [2022-11-20 12:21:40,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2469 transitions. [2022-11-20 12:21:40,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:21:40,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2469 transitions. [2022-11-20 12:21:40,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 411.5) internal successors, (2469), 6 states have internal predecessors, (2469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:40,426 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 448.0) internal successors, (3136), 7 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:40,427 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 448.0) internal successors, (3136), 7 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:40,428 INFO L175 Difference]: Start difference. First operand has 292 places, 309 transitions, 932 flow. Second operand 6 states and 2469 transitions. [2022-11-20 12:21:40,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 296 places, 314 transitions, 1003 flow [2022-11-20 12:21:40,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 296 places, 314 transitions, 1003 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 12:21:40,437 INFO L231 Difference]: Finished difference. Result has 298 places, 309 transitions, 952 flow [2022-11-20 12:21:40,438 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=922, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=307, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=952, PETRI_PLACES=298, PETRI_TRANSITIONS=309} [2022-11-20 12:21:40,439 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, 5 predicate places. [2022-11-20 12:21:40,439 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 309 transitions, 952 flow [2022-11-20 12:21:40,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 409.0) internal successors, (2045), 5 states have internal predecessors, (2045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:40,440 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:21:40,440 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:21:40,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 12:21:40,441 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 12:21:40,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:21:40,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1445959697, now seen corresponding path program 1 times [2022-11-20 12:21:40,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:21:40,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25835951] [2022-11-20 12:21:40,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:21:40,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:21:40,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:21:40,609 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:21:40,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:21:40,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25835951] [2022-11-20 12:21:40,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25835951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:21:40,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:21:40,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:21:40,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543662737] [2022-11-20 12:21:40,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:21:40,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 12:21:40,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:21:40,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 12:21:40,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:21:40,616 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 408 out of 448 [2022-11-20 12:21:40,618 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 309 transitions, 952 flow. Second operand has 5 states, 5 states have (on average 409.8) internal successors, (2049), 5 states have internal predecessors, (2049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:40,619 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:21:40,619 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 408 of 448 [2022-11-20 12:21:40,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:21:41,126 INFO L130 PetriNetUnfolder]: 222/1968 cut-off events. [2022-11-20 12:21:41,127 INFO L131 PetriNetUnfolder]: For 638/676 co-relation queries the response was YES. [2022-11-20 12:21:41,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3029 conditions, 1968 events. 222/1968 cut-off events. For 638/676 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 13258 event pairs, 22 based on Foata normal form. 4/1776 useless extension candidates. Maximal degree in co-relation 2928. Up to 178 conditions per place. [2022-11-20 12:21:41,152 INFO L137 encePairwiseOnDemand]: 443/448 looper letters, 20 selfloop transitions, 4 changer transitions 1/309 dead transitions. [2022-11-20 12:21:41,153 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 309 transitions, 992 flow [2022-11-20 12:21:41,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:21:41,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:21:41,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2469 transitions. [2022-11-20 12:21:41,160 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9185267857142857 [2022-11-20 12:21:41,160 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2469 transitions. [2022-11-20 12:21:41,160 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2469 transitions. [2022-11-20 12:21:41,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:21:41,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2469 transitions. [2022-11-20 12:21:41,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 411.5) internal successors, (2469), 6 states have internal predecessors, (2469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:41,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 448.0) internal successors, (3136), 7 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:41,176 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 448.0) internal successors, (3136), 7 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:41,176 INFO L175 Difference]: Start difference. First operand has 298 places, 309 transitions, 952 flow. Second operand 6 states and 2469 transitions. [2022-11-20 12:21:41,176 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 309 transitions, 992 flow [2022-11-20 12:21:41,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 309 transitions, 970 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-11-20 12:21:41,187 INFO L231 Difference]: Finished difference. Result has 298 places, 306 transitions, 921 flow [2022-11-20 12:21:41,188 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=909, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=921, PETRI_PLACES=298, PETRI_TRANSITIONS=306} [2022-11-20 12:21:41,188 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, 5 predicate places. [2022-11-20 12:21:41,189 INFO L495 AbstractCegarLoop]: Abstraction has has 298 places, 306 transitions, 921 flow [2022-11-20 12:21:41,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 409.8) internal successors, (2049), 5 states have internal predecessors, (2049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:41,190 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:21:41,190 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:21:41,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-20 12:21:41,191 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 12:21:41,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:21:41,191 INFO L85 PathProgramCache]: Analyzing trace with hash 309112898, now seen corresponding path program 1 times [2022-11-20 12:21:41,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:21:41,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502840968] [2022-11-20 12:21:41,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:21:41,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:21:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:21:41,930 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 12:21:41,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:21:41,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502840968] [2022-11-20 12:21:41,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502840968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:21:41,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:21:41,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:21:41,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540940026] [2022-11-20 12:21:41,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:21:41,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:21:41,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:21:41,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:21:41,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:21:41,944 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 394 out of 448 [2022-11-20 12:21:41,949 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 306 transitions, 921 flow. Second operand has 6 states, 6 states have (on average 395.8333333333333) internal successors, (2375), 6 states have internal predecessors, (2375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:41,949 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:21:41,949 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 394 of 448 [2022-11-20 12:21:41,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:21:45,511 INFO L130 PetriNetUnfolder]: 1540/12355 cut-off events. [2022-11-20 12:21:45,511 INFO L131 PetriNetUnfolder]: For 3971/4355 co-relation queries the response was YES. [2022-11-20 12:21:45,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19042 conditions, 12355 events. 1540/12355 cut-off events. For 3971/4355 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 128402 event pairs, 164 based on Foata normal form. 8/10923 useless extension candidates. Maximal degree in co-relation 10908. Up to 1269 conditions per place. [2022-11-20 12:21:45,656 INFO L137 encePairwiseOnDemand]: 443/448 looper letters, 43 selfloop transitions, 4 changer transitions 0/333 dead transitions. [2022-11-20 12:21:45,656 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 333 transitions, 1077 flow [2022-11-20 12:21:45,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:21:45,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:21:45,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2412 transitions. [2022-11-20 12:21:45,663 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8973214285714286 [2022-11-20 12:21:45,663 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2412 transitions. [2022-11-20 12:21:45,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2412 transitions. [2022-11-20 12:21:45,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:21:45,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2412 transitions. [2022-11-20 12:21:45,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 402.0) internal successors, (2412), 6 states have internal predecessors, (2412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:45,676 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 448.0) internal successors, (3136), 7 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:45,678 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 448.0) internal successors, (3136), 7 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:45,678 INFO L175 Difference]: Start difference. First operand has 298 places, 306 transitions, 921 flow. Second operand 6 states and 2412 transitions. [2022-11-20 12:21:45,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 333 transitions, 1077 flow [2022-11-20 12:21:45,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 333 transitions, 1065 flow, removed 3 selfloop flow, removed 3 redundant places. [2022-11-20 12:21:45,693 INFO L231 Difference]: Finished difference. Result has 303 places, 309 transitions, 938 flow [2022-11-20 12:21:45,694 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=907, PETRI_DIFFERENCE_MINUEND_PLACES=294, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=938, PETRI_PLACES=303, PETRI_TRANSITIONS=309} [2022-11-20 12:21:45,694 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, 10 predicate places. [2022-11-20 12:21:45,695 INFO L495 AbstractCegarLoop]: Abstraction has has 303 places, 309 transitions, 938 flow [2022-11-20 12:21:45,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 395.8333333333333) internal successors, (2375), 6 states have internal predecessors, (2375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:45,696 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:21:45,697 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:21:45,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-20 12:21:45,697 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread_usbThread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 12:21:45,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:21:45,698 INFO L85 PathProgramCache]: Analyzing trace with hash 929809600, now seen corresponding path program 1 times [2022-11-20 12:21:45,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:21:45,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674467629] [2022-11-20 12:21:45,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:21:45,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:21:45,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:21:45,869 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:21:45,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:21:45,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674467629] [2022-11-20 12:21:45,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674467629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:21:45,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:21:45,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:21:45,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347919172] [2022-11-20 12:21:45,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:21:45,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:21:45,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:21:45,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:21:45,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:21:45,874 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 400 out of 448 [2022-11-20 12:21:45,876 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 309 transitions, 938 flow. Second operand has 3 states, 3 states have (on average 402.3333333333333) internal successors, (1207), 3 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:45,876 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:21:45,877 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 400 of 448 [2022-11-20 12:21:45,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:21:46,006 INFO L130 PetriNetUnfolder]: 28/485 cut-off events. [2022-11-20 12:21:46,007 INFO L131 PetriNetUnfolder]: For 56/56 co-relation queries the response was YES. [2022-11-20 12:21:46,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 679 conditions, 485 events. 28/485 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 757 event pairs, 0 based on Foata normal form. 2/449 useless extension candidates. Maximal degree in co-relation 583. Up to 24 conditions per place. [2022-11-20 12:21:46,013 INFO L137 encePairwiseOnDemand]: 443/448 looper letters, 11 selfloop transitions, 2 changer transitions 49/274 dead transitions. [2022-11-20 12:21:46,013 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 274 transitions, 776 flow [2022-11-20 12:21:46,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:21:46,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:21:46,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1217 transitions. [2022-11-20 12:21:46,017 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9055059523809523 [2022-11-20 12:21:46,018 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1217 transitions. [2022-11-20 12:21:46,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1217 transitions. [2022-11-20 12:21:46,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:21:46,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1217 transitions. [2022-11-20 12:21:46,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 405.6666666666667) internal successors, (1217), 3 states have internal predecessors, (1217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:46,025 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:46,026 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:46,026 INFO L175 Difference]: Start difference. First operand has 303 places, 309 transitions, 938 flow. Second operand 3 states and 1217 transitions. [2022-11-20 12:21:46,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 274 transitions, 776 flow [2022-11-20 12:21:46,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 274 transitions, 714 flow, removed 13 selfloop flow, removed 10 redundant places. [2022-11-20 12:21:46,034 INFO L231 Difference]: Finished difference. Result has 289 places, 225 transitions, 573 flow [2022-11-20 12:21:46,035 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=686, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=274, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=573, PETRI_PLACES=289, PETRI_TRANSITIONS=225} [2022-11-20 12:21:46,036 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -4 predicate places. [2022-11-20 12:21:46,036 INFO L495 AbstractCegarLoop]: Abstraction has has 289 places, 225 transitions, 573 flow [2022-11-20 12:21:46,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 402.3333333333333) internal successors, (1207), 3 states have internal predecessors, (1207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:46,037 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:21:46,037 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:21:46,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-20 12:21:46,038 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread_usbErr5ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 12:21:46,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:21:46,038 INFO L85 PathProgramCache]: Analyzing trace with hash -1052126580, now seen corresponding path program 1 times [2022-11-20 12:21:46,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:21:46,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379271813] [2022-11-20 12:21:46,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:21:46,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:21:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:21:46,147 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 12:21:46,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:21:46,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379271813] [2022-11-20 12:21:46,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379271813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:21:46,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:21:46,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:21:46,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106903769] [2022-11-20 12:21:46,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:21:46,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:21:46,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:21:46,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:21:46,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:21:46,152 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 383 out of 448 [2022-11-20 12:21:46,154 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 289 places, 225 transitions, 573 flow. Second operand has 3 states, 3 states have (on average 387.6666666666667) internal successors, (1163), 3 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:46,154 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:21:46,154 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 383 of 448 [2022-11-20 12:21:46,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:21:46,270 INFO L130 PetriNetUnfolder]: 28/414 cut-off events. [2022-11-20 12:21:46,270 INFO L131 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2022-11-20 12:21:46,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 581 conditions, 414 events. 28/414 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 516 event pairs, 0 based on Foata normal form. 0/381 useless extension candidates. Maximal degree in co-relation 486. Up to 50 conditions per place. [2022-11-20 12:21:46,276 INFO L137 encePairwiseOnDemand]: 445/448 looper letters, 19 selfloop transitions, 2 changer transitions 0/224 dead transitions. [2022-11-20 12:21:46,277 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 224 transitions, 613 flow [2022-11-20 12:21:46,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:21:46,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:21:46,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1168 transitions. [2022-11-20 12:21:46,281 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8690476190476191 [2022-11-20 12:21:46,281 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1168 transitions. [2022-11-20 12:21:46,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1168 transitions. [2022-11-20 12:21:46,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:21:46,283 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1168 transitions. [2022-11-20 12:21:46,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 389.3333333333333) internal successors, (1168), 3 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:46,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:46,289 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:46,289 INFO L175 Difference]: Start difference. First operand has 289 places, 225 transitions, 573 flow. Second operand 3 states and 1168 transitions. [2022-11-20 12:21:46,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 224 transitions, 613 flow [2022-11-20 12:21:46,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 224 transitions, 589 flow, removed 4 selfloop flow, removed 9 redundant places. [2022-11-20 12:21:46,296 INFO L231 Difference]: Finished difference. Result has 233 places, 224 transitions, 551 flow [2022-11-20 12:21:46,297 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=547, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=551, PETRI_PLACES=233, PETRI_TRANSITIONS=224} [2022-11-20 12:21:46,297 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -60 predicate places. [2022-11-20 12:21:46,298 INFO L495 AbstractCegarLoop]: Abstraction has has 233 places, 224 transitions, 551 flow [2022-11-20 12:21:46,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 387.6666666666667) internal successors, (1163), 3 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:46,299 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:21:46,299 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:21:46,299 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-20 12:21:46,300 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread_usbErr6ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2022-11-20 12:21:46,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:21:46,300 INFO L85 PathProgramCache]: Analyzing trace with hash 851105741, now seen corresponding path program 1 times [2022-11-20 12:21:46,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:21:46,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81838821] [2022-11-20 12:21:46,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:21:46,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:21:46,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:21:46,497 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 12:21:46,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:21:46,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81838821] [2022-11-20 12:21:46,498 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81838821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:21:46,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:21:46,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 12:21:46,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593823998] [2022-11-20 12:21:46,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:21:46,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:21:46,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:21:46,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:21:46,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:21:46,503 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 448 [2022-11-20 12:21:46,504 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 224 transitions, 551 flow. Second operand has 3 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:46,505 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:21:46,505 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 448 [2022-11-20 12:21:46,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:21:46,593 INFO L130 PetriNetUnfolder]: 28/413 cut-off events. [2022-11-20 12:21:46,594 INFO L131 PetriNetUnfolder]: For 9/13 co-relation queries the response was YES. [2022-11-20 12:21:46,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 413 events. 28/413 cut-off events. For 9/13 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 513 event pairs, 0 based on Foata normal form. 0/381 useless extension candidates. Maximal degree in co-relation 437. Up to 24 conditions per place. [2022-11-20 12:21:46,598 INFO L137 encePairwiseOnDemand]: 445/448 looper letters, 0 selfloop transitions, 0 changer transitions 223/223 dead transitions. [2022-11-20 12:21:46,598 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 223 transitions, 585 flow [2022-11-20 12:21:46,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:21:46,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:21:46,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1123 transitions. [2022-11-20 12:21:46,601 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8355654761904762 [2022-11-20 12:21:46,602 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1123 transitions. [2022-11-20 12:21:46,602 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1123 transitions. [2022-11-20 12:21:46,604 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:21:46,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1123 transitions. [2022-11-20 12:21:46,609 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:46,612 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:46,613 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 448.0) internal successors, (1792), 4 states have internal predecessors, (1792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:46,613 INFO L175 Difference]: Start difference. First operand has 233 places, 224 transitions, 551 flow. Second operand 3 states and 1123 transitions. [2022-11-20 12:21:46,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 223 transitions, 585 flow [2022-11-20 12:21:46,615 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 223 transitions, 581 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-20 12:21:46,617 INFO L231 Difference]: Finished difference. Result has 232 places, 0 transitions, 0 flow [2022-11-20 12:21:46,618 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=448, PETRI_DIFFERENCE_MINUEND_FLOW=545, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=232, PETRI_TRANSITIONS=0} [2022-11-20 12:21:46,618 INFO L288 CegarLoopForPetriNet]: 293 programPoint places, -61 predicate places. [2022-11-20 12:21:46,618 INFO L495 AbstractCegarLoop]: Abstraction has has 232 places, 0 transitions, 0 flow [2022-11-20 12:21:46,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 371.3333333333333) internal successors, (1114), 3 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:21:46,622 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (35 of 36 remaining) [2022-11-20 12:21:46,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2022-11-20 12:21:46,623 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2022-11-20 12:21:46,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2022-11-20 12:21:46,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2022-11-20 12:21:46,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2022-11-20 12:21:46,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2022-11-20 12:21:46,624 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2022-11-20 12:21:46,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2022-11-20 12:21:46,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 36 remaining) [2022-11-20 12:21:46,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2022-11-20 12:21:46,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2022-11-20 12:21:46,625 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2022-11-20 12:21:46,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2022-11-20 12:21:46,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2022-11-20 12:21:46,626 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2022-11-20 12:21:46,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2022-11-20 12:21:46,627 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2022-11-20 12:21:46,628 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2022-11-20 12:21:46,628 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2022-11-20 12:21:46,629 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2022-11-20 12:21:46,629 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 36 remaining) [2022-11-20 12:21:46,629 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2022-11-20 12:21:46,629 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2022-11-20 12:21:46,629 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2022-11-20 12:21:46,630 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2022-11-20 12:21:46,630 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2022-11-20 12:21:46,630 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2022-11-20 12:21:46,630 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2022-11-20 12:21:46,631 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2022-11-20 12:21:46,631 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2022-11-20 12:21:46,631 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2022-11-20 12:21:46,631 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2022-11-20 12:21:46,631 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2022-11-20 12:21:46,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2022-11-20 12:21:46,632 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 36 remaining) [2022-11-20 12:21:46,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-20 12:21:46,632 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:21:46,639 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 12:21:46,640 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:21:46,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:21:46 BasicIcfg [2022-11-20 12:21:46,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:21:46,646 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:21:46,646 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:21:46,646 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:21:46,647 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:21:29" (3/4) ... [2022-11-20 12:21:46,651 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 12:21:46,658 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_ath9k [2022-11-20 12:21:46,658 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_usb [2022-11-20 12:21:46,664 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-20 12:21:46,665 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-20 12:21:46,665 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 12:21:46,665 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 12:21:46,727 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e704682-8e91-4144-9574-8a717507467c/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:21:46,727 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:21:46,728 INFO L158 Benchmark]: Toolchain (without parser) took 20238.48ms. Allocated memory was 182.5MB in the beginning and 620.8MB in the end (delta: 438.3MB). Free memory was 143.0MB in the beginning and 400.9MB in the end (delta: -257.9MB). Peak memory consumption was 182.9MB. Max. memory is 16.1GB. [2022-11-20 12:21:46,728 INFO L158 Benchmark]: CDTParser took 1.03ms. Allocated memory is still 134.2MB. Free memory was 76.0MB in the beginning and 75.9MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:21:46,729 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1527.53ms. Allocated memory is still 182.5MB. Free memory was 143.0MB in the beginning and 85.8MB in the end (delta: 57.1MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2022-11-20 12:21:46,729 INFO L158 Benchmark]: Boogie Procedure Inliner took 185.91ms. Allocated memory is still 182.5MB. Free memory was 85.8MB in the beginning and 149.5MB in the end (delta: -63.7MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2022-11-20 12:21:46,730 INFO L158 Benchmark]: Boogie Preprocessor took 102.84ms. Allocated memory is still 182.5MB. Free memory was 149.5MB in the beginning and 146.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 12:21:46,730 INFO L158 Benchmark]: RCFGBuilder took 1153.23ms. Allocated memory is still 182.5MB. Free memory was 146.4MB in the beginning and 117.0MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-20 12:21:46,730 INFO L158 Benchmark]: TraceAbstraction took 17174.60ms. Allocated memory was 182.5MB in the beginning and 620.8MB in the end (delta: 438.3MB). Free memory was 117.0MB in the beginning and 404.0MB in the end (delta: -287.0MB). Peak memory consumption was 150.3MB. Max. memory is 16.1GB. [2022-11-20 12:21:46,731 INFO L158 Benchmark]: Witness Printer took 81.92ms. Allocated memory is still 620.8MB. Free memory was 404.0MB in the beginning and 400.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 12:21:46,734 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03ms. Allocated memory is still 134.2MB. Free memory was 76.0MB in the beginning and 75.9MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1527.53ms. Allocated memory is still 182.5MB. Free memory was 143.0MB in the beginning and 85.8MB in the end (delta: 57.1MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 185.91ms. Allocated memory is still 182.5MB. Free memory was 85.8MB in the beginning and 149.5MB in the end (delta: -63.7MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 102.84ms. Allocated memory is still 182.5MB. Free memory was 149.5MB in the beginning and 146.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1153.23ms. Allocated memory is still 182.5MB. Free memory was 146.4MB in the beginning and 117.0MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 17174.60ms. Allocated memory was 182.5MB in the beginning and 620.8MB in the end (delta: 438.3MB). Free memory was 117.0MB in the beginning and 404.0MB in the end (delta: -287.0MB). Peak memory consumption was 150.3MB. Max. memory is 16.1GB. * Witness Printer took 81.92ms. Allocated memory is still 620.8MB. Free memory was 404.0MB in the beginning and 400.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1777]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1778]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1783]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1784]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1790]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1792]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1793]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1743]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1771]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1748]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1772]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1756]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1764]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1758]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1759]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1760]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 457 locations, 36 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 17.0s, OverallIterations: 19, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 11.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 173 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 173 mSDsluCounter, 410 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 75 mSDsCounter, 76 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 798 IncrementalHoareTripleChecker+Invalid, 874 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 76 mSolverCounterUnsat, 335 mSDtfsCounter, 798 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=952occurred in iteration=14, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 1741 NumberOfCodeBlocks, 1741 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 1722 ConstructedInterpolants, 0 QuantifiedInterpolants, 2032 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 41/41 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 20 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 12:21:46,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e704682-8e91-4144-9574-8a717507467c/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE