./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b018f3a1-febf-46c2-a133-c6f42c2a1fb0/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b018f3a1-febf-46c2-a133-c6f42c2a1fb0/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b018f3a1-febf-46c2-a133-c6f42c2a1fb0/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b018f3a1-febf-46c2-a133-c6f42c2a1fb0/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b018f3a1-febf-46c2-a133-c6f42c2a1fb0/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b018f3a1-febf-46c2-a133-c6f42c2a1fb0/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 --- 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-dbf71c6-m [2022-10-17 10:31:04,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:31:04,363 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:31:04,436 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:31:04,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:31:04,444 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:31:04,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:31:04,454 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:31:04,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:31:04,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:31:04,470 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:31:04,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:31:04,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:31:04,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:31:04,479 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:31:04,482 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:31:04,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:31:04,486 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:31:04,489 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:31:04,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:31:04,505 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:31:04,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:31:04,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:31:04,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:31:04,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:31:04,520 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:31:04,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:31:04,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:31:04,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:31:04,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:31:04,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:31:04,528 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:31:04,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:31:04,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:31:04,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:31:04,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:31:04,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:31:04,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:31:04,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:31:04,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:31:04,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:31:04,538 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b018f3a1-febf-46c2-a133-c6f42c2a1fb0/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:31:04,591 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:31:04,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:31:04,592 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:31:04,592 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:31:04,594 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:31:04,594 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:31:04,595 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:31:04,595 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:31:04,596 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:31:04,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:31:04,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:31:04,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:31:04,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:31:04,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:31:04,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:31:04,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:31:04,599 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:31:04,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:31:04,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:31:04,600 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:31:04,601 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:31:04,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:31:04,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:31:04,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:31:04,602 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:31:04,602 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:31:04,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:31:04,603 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:31:04,603 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:31:04,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:31:04,604 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_b018f3a1-febf-46c2-a133-c6f42c2a1fb0/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b018f3a1-febf-46c2-a133-c6f42c2a1fb0/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fae230e52bc983f4c0251cc946bfbc52943e9b9d698b0f694e42af65a9c74e9 [2022-10-17 10:31:04,932 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:31:04,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:31:04,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:31:04,975 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:31:04,977 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:31:04,979 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b018f3a1-febf-46c2-a133-c6f42c2a1fb0/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2022-10-17 10:31:05,079 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b018f3a1-febf-46c2-a133-c6f42c2a1fb0/bin/uautomizer-J5u9QxTXDZ/data/4170a6520/c868389a0817439995b1d2ba68b44cb0/FLAG064779f5a [2022-10-17 10:31:06,309 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:31:06,311 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b018f3a1-febf-46c2-a133-c6f42c2a1fb0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2022-10-17 10:31:06,384 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b018f3a1-febf-46c2-a133-c6f42c2a1fb0/bin/uautomizer-J5u9QxTXDZ/data/4170a6520/c868389a0817439995b1d2ba68b44cb0/FLAG064779f5a [2022-10-17 10:31:06,567 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b018f3a1-febf-46c2-a133-c6f42c2a1fb0/bin/uautomizer-J5u9QxTXDZ/data/4170a6520/c868389a0817439995b1d2ba68b44cb0 [2022-10-17 10:31:06,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:31:06,573 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:31:06,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:31:06,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:31:06,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:31:06,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:31:06" (1/1) ... [2022-10-17 10:31:06,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51414dd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:31:06, skipping insertion in model container [2022-10-17 10:31:06,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:31:06" (1/1) ... [2022-10-17 10:31:06,594 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:31:06,762 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:31:09,944 WARN L230 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_b018f3a1-febf-46c2-a133-c6f42c2a1fb0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2022-10-17 10:31:09,947 WARN L230 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_b018f3a1-febf-46c2-a133-c6f42c2a1fb0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2022-10-17 10:31:09,948 WARN L230 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_b018f3a1-febf-46c2-a133-c6f42c2a1fb0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2022-10-17 10:31:09,949 WARN L230 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_b018f3a1-febf-46c2-a133-c6f42c2a1fb0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2022-10-17 10:31:10,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:31:10,071 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:31:10,503 WARN L230 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_b018f3a1-febf-46c2-a133-c6f42c2a1fb0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292221,292234] [2022-10-17 10:31:10,504 WARN L230 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_b018f3a1-febf-46c2-a133-c6f42c2a1fb0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292387,292400] [2022-10-17 10:31:10,504 WARN L230 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_b018f3a1-febf-46c2-a133-c6f42c2a1fb0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292551,292564] [2022-10-17 10:31:10,505 WARN L230 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_b018f3a1-febf-46c2-a133-c6f42c2a1fb0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i[292716,292729] [2022-10-17 10:31:10,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:31:10,733 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:31:10,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:31:10 WrapperNode [2022-10-17 10:31:10,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:31:10,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:31:10,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:31:10,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:31:10,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:31:10" (1/1) ... [2022-10-17 10:31:10,885 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:31:10" (1/1) ... [2022-10-17 10:31:11,163 INFO L138 Inliner]: procedures = 357, calls = 1560, calls flagged for inlining = 197, calls inlined = 186, statements flattened = 4359 [2022-10-17 10:31:11,165 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:31:11,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:31:11,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:31:11,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:31:11,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:31:10" (1/1) ... [2022-10-17 10:31:11,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:31:10" (1/1) ... [2022-10-17 10:31:11,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:31:10" (1/1) ... [2022-10-17 10:31:11,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:31:10" (1/1) ... [2022-10-17 10:31:11,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:31:10" (1/1) ... [2022-10-17 10:31:11,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:31:10" (1/1) ... [2022-10-17 10:31:11,434 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:31:10" (1/1) ... [2022-10-17 10:31:11,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:31:10" (1/1) ... [2022-10-17 10:31:11,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:31:11,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:31:11,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:31:11,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:31:11,523 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:31:10" (1/1) ... [2022-10-17 10:31:11,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:31:11,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b018f3a1-febf-46c2-a133-c6f42c2a1fb0/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:31:11,579 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b018f3a1-febf-46c2-a133-c6f42c2a1fb0/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:31:11,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b018f3a1-febf-46c2-a133-c6f42c2a1fb0/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:31:11,713 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_txfree [2022-10-17 10:31:11,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_txfree [2022-10-17 10:31:11,714 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2022-10-17 10:31:11,714 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2022-10-17 10:31:11,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 10:31:11,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 10:31:11,715 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 10:31:11,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 10:31:11,715 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-10-17 10:31:11,716 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-10-17 10:31:11,716 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_timeout [2022-10-17 10:31:11,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_timeout [2022-10-17 10:31:11,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-17 10:31:11,716 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-17 10:31:11,717 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-10-17 10:31:11,717 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-10-17 10:31:11,717 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 10:31:11,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 10:31:11,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mii_mutex_of_ipg_nic_private [2022-10-17 10:31:11,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mii_mutex_of_ipg_nic_private [2022-10-17 10:31:11,718 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-10-17 10:31:11,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-10-17 10:31:11,719 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-10-17 10:31:11,719 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-10-17 10:31:11,719 INFO L130 BoogieDeclarations]: Found specification of procedure init_tfdlist [2022-10-17 10:31:11,720 INFO L138 BoogieDeclarations]: Found implementation of procedure init_tfdlist [2022-10-17 10:31:11,720 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-10-17 10:31:11,720 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-10-17 10:31:11,720 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-10-17 10:31:11,720 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-10-17 10:31:11,721 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-10-17 10:31:11,721 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-10-17 10:31:11,721 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_set_multicast_list [2022-10-17 10:31:11,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_set_multicast_list [2022-10-17 10:31:11,722 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-10-17 10:31:11,722 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-10-17 10:31:11,723 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-10-17 10:31:11,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-10-17 10:31:11,723 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-10-17 10:31:11,724 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-10-17 10:31:11,724 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-10-17 10:31:11,724 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-10-17 10:31:11,724 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-17 10:31:11,725 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-17 10:31:11,725 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_tx_clear [2022-10-17 10:31:11,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_tx_clear [2022-10-17 10:31:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_rx_clear [2022-10-17 10:31:11,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_rx_clear [2022-10-17 10:31:11,726 INFO L130 BoogieDeclarations]: Found specification of procedure read_eeprom [2022-10-17 10:31:11,727 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eeprom [2022-10-17 10:31:11,727 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:31:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-10-17 10:31:11,729 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-10-17 10:31:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure skb_checksum_none_assert [2022-10-17 10:31:11,730 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_checksum_none_assert [2022-10-17 10:31:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:31:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-10-17 10:31:11,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-10-17 10:31:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-10-17 10:31:11,731 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-10-17 10:31:11,732 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-10-17 10:31:11,732 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-10-17 10:31:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-10-17 10:31:11,733 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-10-17 10:31:11,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-17 10:31:11,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-17 10:31:11,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-10-17 10:31:11,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-10-17 10:31:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_free_skb [2022-10-17 10:31:11,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_free_skb [2022-10-17 10:31:11,735 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-10-17 10:31:11,736 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-10-17 10:31:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure send_three_state [2022-10-17 10:31:11,736 INFO L138 BoogieDeclarations]: Found implementation of procedure send_three_state [2022-10-17 10:31:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:31:11,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:31:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-10-17 10:31:11,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-10-17 10:31:11,737 INFO L130 BoogieDeclarations]: Found specification of procedure read_phy_bit [2022-10-17 10:31:11,737 INFO L138 BoogieDeclarations]: Found implementation of procedure read_phy_bit [2022-10-17 10:31:11,738 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-17 10:31:11,738 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-17 10:31:11,738 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_remove [2022-10-17 10:31:11,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_remove [2022-10-17 10:31:11,739 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-10-17 10:31:11,740 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-10-17 10:31:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-10-17 10:31:11,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-10-17 10:31:11,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-10-17 10:31:11,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-10-17 10:31:11,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 10:31:11,742 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-10-17 10:31:11,742 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-10-17 10:31:11,742 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-10-17 10:31:11,742 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-10-17 10:31:11,743 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_io_config [2022-10-17 10:31:11,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_io_config [2022-10-17 10:31:11,743 INFO L130 BoogieDeclarations]: Found specification of procedure init_rfdlist [2022-10-17 10:31:11,743 INFO L138 BoogieDeclarations]: Found implementation of procedure init_rfdlist [2022-10-17 10:31:11,744 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_open [2022-10-17 10:31:11,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_open [2022-10-17 10:31:11,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 10:31:11,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-10-17 10:31:11,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-10-17 10:31:11,745 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-10-17 10:31:11,746 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-10-17 10:31:11,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:31:11,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-10-17 10:31:11,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-10-17 10:31:11,746 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-10-17 10:31:11,747 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-10-17 10:31:11,748 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-10-17 10:31:11,748 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-10-17 10:31:11,752 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-10-17 10:31:11,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-10-17 10:31:11,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 10:31:11,754 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 10:31:11,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-10-17 10:31:11,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-10-17 10:31:11,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-10-17 10:31:11,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-10-17 10:31:11,756 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-17 10:31:11,763 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-17 10:31:11,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-10-17 10:31:11,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-10-17 10:31:11,764 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-10-17 10:31:11,764 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-10-17 10:31:11,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-10-17 10:31:11,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-10-17 10:31:11,765 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-10-17 10:31:11,765 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-10-17 10:31:11,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:31:11,765 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-10-17 10:31:11,765 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-10-17 10:31:11,766 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-10-17 10:31:11,766 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-10-17 10:31:11,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 10:31:11,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 10:31:11,766 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_get_stats [2022-10-17 10:31:11,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_get_stats [2022-10-17 10:31:11,767 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nway_reset [2022-10-17 10:31:11,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nway_reset [2022-10-17 10:31:11,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mii_mutex_of_ipg_nic_private [2022-10-17 10:31:11,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mii_mutex_of_ipg_nic_private [2022-10-17 10:31:11,768 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rxrestore [2022-10-17 10:31:11,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rxrestore [2022-10-17 10:31:11,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:31:11,768 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_stop [2022-10-17 10:31:11,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_stop [2022-10-17 10:31:11,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-10-17 10:31:11,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-10-17 10:31:11,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-10-17 10:31:11,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-10-17 10:31:11,769 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_config_autoneg [2022-10-17 10:31:11,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_config_autoneg [2022-10-17 10:31:11,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:31:11,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-17 10:31:11,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-17 10:31:11,770 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-10-17 10:31:11,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-10-17 10:31:11,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:31:11,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2022-10-17 10:31:11,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ipg_pci_driver_exit_13_2 [2022-10-17 10:31:11,771 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-10-17 10:31:11,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-10-17 10:31:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 10:31:11,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 10:31:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_ioaddr [2022-10-17 10:31:11,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_ioaddr [2022-10-17 10:31:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-10-17 10:31:11,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-10-17 10:31:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-10-17 10:31:11,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-10-17 10:31:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-10-17 10:31:11,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-10-17 10:31:11,774 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_reset [2022-10-17 10:31:11,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_reset [2022-10-17 10:31:11,774 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-10-17 10:31:11,774 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-10-17 10:31:11,774 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-17 10:31:11,775 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-17 10:31:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-10-17 10:31:11,776 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-10-17 10:31:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-10-17 10:31:11,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-10-17 10:31:11,777 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_get_rxbuff [2022-10-17 10:31:11,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_get_rxbuff [2022-10-17 10:31:11,777 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_write_phy_ctl [2022-10-17 10:31:11,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_write_phy_ctl [2022-10-17 10:31:11,777 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-10-17 10:31:11,778 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-10-17 10:31:11,778 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-10-17 10:31:11,778 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-10-17 10:31:11,778 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-17 10:31:11,778 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-17 10:31:11,779 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-10-17 10:31:11,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:31:11,779 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_nic_rx_check_error [2022-10-17 10:31:11,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_nic_rx_check_error [2022-10-17 10:31:11,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-10-17 10:31:11,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-10-17 10:31:11,780 INFO L130 BoogieDeclarations]: Found specification of procedure ipg_drive_phy_ctl_low_high [2022-10-17 10:31:11,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ipg_drive_phy_ctl_low_high [2022-10-17 10:31:11,780 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-10-17 10:31:11,780 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-10-17 10:31:11,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:31:11,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:31:12,912 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:31:12,916 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:31:14,234 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 10:31:18,523 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-10-17 10:31:18,667 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:31:18,690 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:31:18,690 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 10:31:18,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:31:18 BoogieIcfgContainer [2022-10-17 10:31:18,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:31:18,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:31:18,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:31:18,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:31:18,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:31:06" (1/3) ... [2022-10-17 10:31:18,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e4dcc38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:31:18, skipping insertion in model container [2022-10-17 10:31:18,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:31:10" (2/3) ... [2022-10-17 10:31:18,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e4dcc38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:31:18, skipping insertion in model container [2022-10-17 10:31:18,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:31:18" (3/3) ... [2022-10-17 10:31:18,709 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-icplus-ipg.cil.i [2022-10-17 10:31:18,732 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:31:18,732 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-10-17 10:31:18,851 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:31:18,859 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;@484ddd0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:31:18,859 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-10-17 10:31:18,873 INFO L276 IsEmpty]: Start isEmpty. Operand has 1828 states, 1290 states have (on average 1.34031007751938) internal successors, (1729), 1325 states have internal predecessors, (1729), 443 states have call successors, (443), 95 states have call predecessors, (443), 94 states have return successors, (437), 434 states have call predecessors, (437), 437 states have call successors, (437) [2022-10-17 10:31:18,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-10-17 10:31:18,899 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:31:18,900 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:31:18,900 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:31:18,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:31:18,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1218556504, now seen corresponding path program 1 times [2022-10-17 10:31:18,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:31:18,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016278284] [2022-10-17 10:31:18,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:31:18,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:31:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:19,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:31:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:19,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:31:19,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:19,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:31:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:19,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:31:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:19,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:31:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:19,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:31:19,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:19,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 10:31:19,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:19,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:31:19,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:19,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-17 10:31:19,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:19,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:31:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:20,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-17 10:31:20,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:20,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:31:20,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:20,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-17 10:31:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:20,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:31:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:20,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-17 10:31:20,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:20,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:31:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:20,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-17 10:31:20,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:20,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-17 10:31:20,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:20,158 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-10-17 10:31:20,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:31:20,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016278284] [2022-10-17 10:31:20,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016278284] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:31:20,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:31:20,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:31:20,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030619623] [2022-10-17 10:31:20,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:31:20,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:31:20,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:31:20,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:31:20,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:31:20,226 INFO L87 Difference]: Start difference. First operand has 1828 states, 1290 states have (on average 1.34031007751938) internal successors, (1729), 1325 states have internal predecessors, (1729), 443 states have call successors, (443), 95 states have call predecessors, (443), 94 states have return successors, (437), 434 states have call predecessors, (437), 437 states have call successors, (437) Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-17 10:31:26,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:31:26,916 INFO L93 Difference]: Finished difference Result 5488 states and 8071 transitions. [2022-10-17 10:31:26,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:31:26,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 116 [2022-10-17 10:31:26,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:31:27,011 INFO L225 Difference]: With dead ends: 5488 [2022-10-17 10:31:27,012 INFO L226 Difference]: Without dead ends: 3671 [2022-10-17 10:31:27,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:31:27,044 INFO L413 NwaCegarLoop]: 2599 mSDtfsCounter, 3445 mSDsluCounter, 2200 mSDsCounter, 0 mSdLazyCounter, 2093 mSolverCounterSat, 1385 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3837 SdHoareTripleChecker+Valid, 4799 SdHoareTripleChecker+Invalid, 3478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1385 IncrementalHoareTripleChecker+Valid, 2093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-10-17 10:31:27,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3837 Valid, 4799 Invalid, 3478 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1385 Valid, 2093 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2022-10-17 10:31:27,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3671 states. [2022-10-17 10:31:27,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3671 to 3523. [2022-10-17 10:31:27,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3523 states, 2498 states have (on average 1.2598078462770217) internal successors, (3147), 2565 states have internal predecessors, (3147), 838 states have call successors, (838), 185 states have call predecessors, (838), 184 states have return successors, (834), 828 states have call predecessors, (834), 834 states have call successors, (834) [2022-10-17 10:31:27,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3523 states to 3523 states and 4819 transitions. [2022-10-17 10:31:27,474 INFO L78 Accepts]: Start accepts. Automaton has 3523 states and 4819 transitions. Word has length 116 [2022-10-17 10:31:27,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:31:27,476 INFO L495 AbstractCegarLoop]: Abstraction has 3523 states and 4819 transitions. [2022-10-17 10:31:27,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-17 10:31:27,477 INFO L276 IsEmpty]: Start isEmpty. Operand 3523 states and 4819 transitions. [2022-10-17 10:31:27,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-10-17 10:31:27,485 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:31:27,485 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:31:27,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:31:27,486 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:31:27,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:31:27,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1007361032, now seen corresponding path program 1 times [2022-10-17 10:31:27,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:31:27,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773942400] [2022-10-17 10:31:27,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:31:27,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:31:27,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:27,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:31:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:27,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:31:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:27,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:31:27,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:27,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:31:27,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:27,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:31:27,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:27,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:31:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:27,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 10:31:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:28,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:31:28,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:28,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-17 10:31:28,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:28,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:31:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:28,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-17 10:31:28,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:28,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:31:28,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:28,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-17 10:31:28,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:28,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:31:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:28,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-10-17 10:31:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:28,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:31:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:28,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-10-17 10:31:28,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:28,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-10-17 10:31:28,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:31:28,135 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2022-10-17 10:31:28,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:31:28,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773942400] [2022-10-17 10:31:28,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773942400] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:31:28,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:31:28,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:31:28,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924461209] [2022-10-17 10:31:28,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:31:28,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:31:28,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:31:28,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:31:28,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:31:28,147 INFO L87 Difference]: Start difference. First operand 3523 states and 4819 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (13), 3 states have call predecessors, (13), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11)