./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-spinlock_drivers-net-ethernet-hp-hp100.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_a75a842a-c4ad-4b1c-b389-67eb4790aee2/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a842a-c4ad-4b1c-b389-67eb4790aee2/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_a75a842a-c4ad-4b1c-b389-67eb4790aee2/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a842a-c4ad-4b1c-b389-67eb4790aee2/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a842a-c4ad-4b1c-b389-67eb4790aee2/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_a75a842a-c4ad-4b1c-b389-67eb4790aee2/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 6b2cae6d498f7aa4576ffcfd28b3f955c7840001d7c2abb7c90b6970c97881d1 --- 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 10:16:55,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:16:55,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:16:55,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:16:55,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:16:55,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:16:55,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:16:55,583 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:16:55,586 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:16:55,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:16:55,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:16:55,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:16:55,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:16:55,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:16:55,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:16:55,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:16:55,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:16:55,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:16:55,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:16:55,618 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:16:55,620 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:16:55,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:16:55,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:16:55,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:16:55,633 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:16:55,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:16:55,634 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:16:55,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:16:55,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:16:55,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:16:55,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:16:55,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:16:55,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:16:55,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:16:55,646 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:16:55,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:16:55,647 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:16:55,647 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:16:55,647 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:16:55,648 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:16:55,649 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:16:55,649 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a842a-c4ad-4b1c-b389-67eb4790aee2/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 10:16:55,698 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:16:55,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:16:55,699 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:16:55,699 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:16:55,700 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:16:55,700 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:16:55,701 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:16:55,701 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:16:55,701 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:16:55,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:16:55,703 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:16:55,703 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:16:55,703 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:16:55,704 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:16:55,704 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:16:55,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:16:55,704 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:16:55,705 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:16:55,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:16:55,705 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:16:55,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:16:55,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:16:55,706 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:16:55,706 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:16:55,706 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:16:55,707 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:16:55,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:16:55,707 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:16:55,707 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:16:55,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:16:55,710 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_a75a842a-c4ad-4b1c-b389-67eb4790aee2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a842a-c4ad-4b1c-b389-67eb4790aee2/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b2cae6d498f7aa4576ffcfd28b3f955c7840001d7c2abb7c90b6970c97881d1 [2022-10-17 10:16:56,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:16:56,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:16:56,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:16:56,033 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:16:56,034 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:16:56,036 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a842a-c4ad-4b1c-b389-67eb4790aee2/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2022-10-17 10:16:56,116 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a842a-c4ad-4b1c-b389-67eb4790aee2/bin/uautomizer-J5u9QxTXDZ/data/3b4c99b67/e19f71ffa1f5482eb0bc8e217cd1f185/FLAG749825e08 [2022-10-17 10:16:56,978 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:16:56,979 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a842a-c4ad-4b1c-b389-67eb4790aee2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2022-10-17 10:16:57,019 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a842a-c4ad-4b1c-b389-67eb4790aee2/bin/uautomizer-J5u9QxTXDZ/data/3b4c99b67/e19f71ffa1f5482eb0bc8e217cd1f185/FLAG749825e08 [2022-10-17 10:16:57,413 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a842a-c4ad-4b1c-b389-67eb4790aee2/bin/uautomizer-J5u9QxTXDZ/data/3b4c99b67/e19f71ffa1f5482eb0bc8e217cd1f185 [2022-10-17 10:16:57,418 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:16:57,420 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:16:57,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:16:57,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:16:57,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:16:57,440 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:16:57" (1/1) ... [2022-10-17 10:16:57,441 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f441f68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:16:57, skipping insertion in model container [2022-10-17 10:16:57,441 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:16:57" (1/1) ... [2022-10-17 10:16:57,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:16:57,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:17:00,254 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_a75a842a-c4ad-4b1c-b389-67eb4790aee2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314801,314814] [2022-10-17 10:17:00,257 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_a75a842a-c4ad-4b1c-b389-67eb4790aee2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314970,314983] [2022-10-17 10:17:00,258 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_a75a842a-c4ad-4b1c-b389-67eb4790aee2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315137,315150] [2022-10-17 10:17:00,258 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_a75a842a-c4ad-4b1c-b389-67eb4790aee2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315305,315318] [2022-10-17 10:17:00,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:17:00,347 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:17:00,711 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_a75a842a-c4ad-4b1c-b389-67eb4790aee2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314801,314814] [2022-10-17 10:17:00,712 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_a75a842a-c4ad-4b1c-b389-67eb4790aee2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[314970,314983] [2022-10-17 10:17:00,712 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_a75a842a-c4ad-4b1c-b389-67eb4790aee2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315137,315150] [2022-10-17 10:17:00,713 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_a75a842a-c4ad-4b1c-b389-67eb4790aee2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315305,315318] [2022-10-17 10:17:00,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:17:00,946 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:17:00,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:00 WrapperNode [2022-10-17 10:17:00,947 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:17:00,949 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:17:00,949 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:17:00,949 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:17:00,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:00" (1/1) ... [2022-10-17 10:17:01,071 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:00" (1/1) ... [2022-10-17 10:17:01,277 INFO L138 Inliner]: procedures = 391, calls = 1784, calls flagged for inlining = 177, calls inlined = 156, statements flattened = 4311 [2022-10-17 10:17:01,278 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:17:01,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:17:01,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:17:01,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:17:01,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:00" (1/1) ... [2022-10-17 10:17:01,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:00" (1/1) ... [2022-10-17 10:17:01,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:00" (1/1) ... [2022-10-17 10:17:01,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:00" (1/1) ... [2022-10-17 10:17:01,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:00" (1/1) ... [2022-10-17 10:17:01,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:00" (1/1) ... [2022-10-17 10:17:01,585 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:00" (1/1) ... [2022-10-17 10:17:01,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:00" (1/1) ... [2022-10-17 10:17:01,647 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:17:01,648 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:17:01,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:17:01,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:17:01,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:00" (1/1) ... [2022-10-17 10:17:01,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:17:01,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a842a-c4ad-4b1c-b389-67eb4790aee2/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:17:01,699 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a842a-c4ad-4b1c-b389-67eb4790aee2/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:17:01,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a75a842a-c4ad-4b1c-b389-67eb4790aee2/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:17:01,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-17 10:17:01,745 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-17 10:17:01,745 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-10-17 10:17:01,746 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-10-17 10:17:01,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 10:17:01,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 10:17:01,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-10-17 10:17:01,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-10-17 10:17:01,746 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-10-17 10:17:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-10-17 10:17:01,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2022-10-17 10:17:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2022-10-17 10:17:01,747 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2022-10-17 10:17:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2022-10-17 10:17:01,747 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_open [2022-10-17 10:17:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_open [2022-10-17 10:17:01,748 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_load_eeprom [2022-10-17 10:17:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_load_eeprom [2022-10-17 10:17:01,748 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-17 10:17:01,748 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_sense_lan [2022-10-17 10:17:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_sense_lan [2022-10-17 10:17:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-10-17 10:17:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-10-17 10:17:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-10-17 10:17:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-10-17 10:17:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-10-17 10:17:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-10-17 10:17:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-10-17 10:17:01,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-10-17 10:17:01,750 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-10-17 10:17:01,750 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-10-17 10:17:01,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:17:01,751 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-10-17 10:17:01,751 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-10-17 10:17:01,751 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-10-17 10:17:01,751 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-10-17 10:17:01,751 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-10-17 10:17:01,751 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-10-17 10:17:01,752 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_cascade_reset [2022-10-17 10:17:01,752 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_cascade_reset [2022-10-17 10:17:01,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 10:17:01,752 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-10-17 10:17:01,752 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-10-17 10:17:01,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 10:17:01,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-10-17 10:17:01,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-10-17 10:17:01,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:17:01,753 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-10-17 10:17:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-10-17 10:17:01,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 10:17:01,754 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 10:17:01,755 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rx_bm [2022-10-17 10:17:01,756 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rx_bm [2022-10-17 10:17:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_BM_shutdown [2022-10-17 10:17:01,756 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_BM_shutdown [2022-10-17 10:17:01,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-10-17 10:17:01,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-10-17 10:17:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-10-17 10:17:01,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-10-17 10:17:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure wait [2022-10-17 10:17:01,757 INFO L138 BoogieDeclarations]: Found implementation of procedure wait [2022-10-17 10:17:01,757 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-10-17 10:17:01,758 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-10-17 10:17:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_hwinit [2022-10-17 10:17:01,758 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_hwinit [2022-10-17 10:17:01,758 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-10-17 10:17:01,759 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-10-17 10:17:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_whatever [2022-10-17 10:17:01,759 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_whatever [2022-10-17 10:17:01,759 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_close [2022-10-17 10:17:01,759 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_close [2022-10-17 10:17:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-10-17 10:17:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-10-17 10:17:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:17:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_stop_interface [2022-10-17 10:17:01,760 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_stop_interface [2022-10-17 10:17:01,760 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_check_lan [2022-10-17 10:17:01,761 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_check_lan [2022-10-17 10:17:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-10-17 10:17:01,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-10-17 10:17:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:17:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-17 10:17:01,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-17 10:17:01,761 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-10-17 10:17:01,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-10-17 10:17:01,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:17:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-17 10:17:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 10:17:01,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 10:17:01,763 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-10-17 10:17:01,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-10-17 10:17:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-10-17 10:17:01,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-10-17 10:17:01,764 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rxfill [2022-10-17 10:17:01,764 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rxfill [2022-10-17 10:17:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-17 10:17:01,765 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-17 10:17:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-10-17 10:17:01,765 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-10-17 10:17:01,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-10-17 10:17:01,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-10-17 10:17:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:17:01,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:17:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_update_stats [2022-10-17 10:17:01,766 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_update_stats [2022-10-17 10:17:01,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 10:17:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 10:17:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 10:17:01,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 10:17:01,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-10-17 10:17:01,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-10-17 10:17:01,768 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-10-17 10:17:01,769 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-10-17 10:17:01,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 10:17:01,771 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 10:17:01,772 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-10-17 10:17:01,773 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-10-17 10:17:01,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:17:01,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:17:01,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:17:01,775 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-10-17 10:17:01,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-10-17 10:17:01,781 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-10-17 10:17:01,781 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-10-17 10:17:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-17 10:17:01,782 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-17 10:17:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-10-17 10:17:01,782 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-10-17 10:17:01,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-10-17 10:17:01,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-10-17 10:17:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-10-17 10:17:01,783 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-10-17 10:17:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_pci_remove [2022-10-17 10:17:01,783 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_pci_remove [2022-10-17 10:17:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_build_rx_pdl [2022-10-17 10:17:01,783 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_build_rx_pdl [2022-10-17 10:17:01,783 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-10-17 10:17:01,784 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-10-17 10:17:01,784 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-10-17 10:17:01,784 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-10-17 10:17:01,784 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-10-17 10:17:01,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-10-17 10:17:01,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_hp100_private [2022-10-17 10:17:01,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_hp100_private [2022-10-17 10:17:01,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:17:01,785 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-10-17 10:17:01,785 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-10-17 10:17:01,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 10:17:01,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 10:17:01,785 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hp100_private [2022-10-17 10:17:01,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hp100_private [2022-10-17 10:17:01,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_80 [2022-10-17 10:17:01,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_80 [2022-10-17 10:17:01,786 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-10-17 10:17:01,786 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-10-17 10:17:01,786 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-10-17 10:17:01,786 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-10-17 10:17:01,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-10-17 10:17:01,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-10-17 10:17:01,787 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_set_multicast_list [2022-10-17 10:17:01,787 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_set_multicast_list [2022-10-17 10:17:01,787 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_start_interface [2022-10-17 10:17:01,787 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_start_interface [2022-10-17 10:17:01,787 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-10-17 10:17:01,787 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-10-17 10:17:01,788 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_clean_txring [2022-10-17 10:17:01,788 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_clean_txring [2022-10-17 10:17:01,788 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-10-17 10:17:01,788 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-10-17 10:17:01,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:17:01,788 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-10-17 10:17:01,788 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-10-17 10:17:01,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-10-17 10:17:01,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-10-17 10:17:01,789 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_login_to_vg_hub [2022-10-17 10:17:01,789 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_login_to_vg_hub [2022-10-17 10:17:01,789 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-10-17 10:17:01,789 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-10-17 10:17:02,572 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:17:02,576 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:17:02,956 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 10:17:05,865 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-10-17 10:17:05,866 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 10:17:06,102 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8563: SUMMARY for call #t~ret698#1 := schedule_timeout_interruptible(1); srcloc: null [2022-10-17 10:17:06,102 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8563-1: assume -9223372036854775808 <= #t~ret698#1 && #t~ret698#1 <= 9223372036854775807;havoc #t~ret698#1; [2022-10-17 10:17:06,102 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume 0 == (if 0 == ~tmp___4~7#1 then 0 else (if 1 == ~tmp___4~7#1 then 0 else ~bitwiseAnd(~tmp___4~7#1, 2096896))) % 18446744073709551616; [2022-10-17 10:17:06,102 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !(0 == (if 0 == ~tmp___4~7#1 then 0 else (if 1 == ~tmp___4~7#1 then 0 else ~bitwiseAnd(~tmp___4~7#1, 2096896))) % 18446744073709551616); [2022-10-17 10:17:06,103 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8567: assume (if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0; [2022-10-17 10:17:06,103 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8567: assume !((if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0); [2022-10-17 10:17:06,224 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:17:06,258 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:17:06,259 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 10:17:06,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:17:06 BoogieIcfgContainer [2022-10-17 10:17:06,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:17:06,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:17:06,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:17:06,275 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:17:06,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:16:57" (1/3) ... [2022-10-17 10:17:06,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39188a94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:17:06, skipping insertion in model container [2022-10-17 10:17:06,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:17:00" (2/3) ... [2022-10-17 10:17:06,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39188a94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:17:06, skipping insertion in model container [2022-10-17 10:17:06,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:17:06" (3/3) ... [2022-10-17 10:17:06,279 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2022-10-17 10:17:06,298 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:17:06,298 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-10-17 10:17:06,414 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:17:06,421 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;@6a64454e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:17:06,421 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-10-17 10:17:06,431 INFO L276 IsEmpty]: Start isEmpty. Operand has 1799 states, 1150 states have (on average 1.3217391304347825) internal successors, (1520), 1200 states have internal predecessors, (1520), 568 states have call successors, (568), 80 states have call predecessors, (568), 79 states have return successors, (563), 547 states have call predecessors, (563), 563 states have call successors, (563) [2022-10-17 10:17:06,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-17 10:17:06,445 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:17:06,446 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:17:06,446 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:17:06,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:17:06,451 INFO L85 PathProgramCache]: Analyzing trace with hash 1256620244, now seen corresponding path program 1 times [2022-10-17 10:17:06,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:17:06,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287830762] [2022-10-17 10:17:06,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:17:06,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:17:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:07,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:17:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:07,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:17:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:07,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:17:07,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:07,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:17:07,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:07,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:17:07,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:07,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:17:07,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:07,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 10:17:07,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:07,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:17:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:07,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-17 10:17:07,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:07,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-10-17 10:17:07,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:07,264 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-10-17 10:17:07,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:17:07,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287830762] [2022-10-17 10:17:07,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287830762] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:17:07,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:17:07,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:17:07,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096309833] [2022-10-17 10:17:07,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:17:07,279 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:17:07,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:17:07,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:17:07,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:17:07,362 INFO L87 Difference]: Start difference. First operand has 1799 states, 1150 states have (on average 1.3217391304347825) internal successors, (1520), 1200 states have internal predecessors, (1520), 568 states have call successors, (568), 80 states have call predecessors, (568), 79 states have return successors, (563), 547 states have call predecessors, (563), 563 states have call successors, (563) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-17 10:17:15,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-10-17 10:17:16,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:17:16,311 INFO L93 Difference]: Finished difference Result 5452 states and 8256 transitions. [2022-10-17 10:17:16,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:17:16,314 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68 [2022-10-17 10:17:16,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:17:16,387 INFO L225 Difference]: With dead ends: 5452 [2022-10-17 10:17:16,387 INFO L226 Difference]: Without dead ends: 3656 [2022-10-17 10:17:16,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 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 10:17:16,419 INFO L413 NwaCegarLoop]: 2521 mSDtfsCounter, 3273 mSDsluCounter, 1895 mSDsCounter, 0 mSdLazyCounter, 2630 mSolverCounterSat, 2123 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3816 SdHoareTripleChecker+Valid, 4416 SdHoareTripleChecker+Invalid, 4754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2123 IncrementalHoareTripleChecker+Valid, 2630 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:17:16,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3816 Valid, 4416 Invalid, 4754 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2123 Valid, 2630 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2022-10-17 10:17:16,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3656 states. [2022-10-17 10:17:16,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3656 to 3484. [2022-10-17 10:17:16,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3484 states, 2231 states have (on average 1.2823845809054235) internal successors, (2861), 2327 states have internal predecessors, (2861), 1095 states have call successors, (1095), 156 states have call predecessors, (1095), 155 states have return successors, (1092), 1060 states have call predecessors, (1092), 1092 states have call successors, (1092) [2022-10-17 10:17:16,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3484 states to 3484 states and 5048 transitions. [2022-10-17 10:17:16,964 INFO L78 Accepts]: Start accepts. Automaton has 3484 states and 5048 transitions. Word has length 68 [2022-10-17 10:17:16,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:17:16,967 INFO L495 AbstractCegarLoop]: Abstraction has 3484 states and 5048 transitions. [2022-10-17 10:17:16,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-17 10:17:16,967 INFO L276 IsEmpty]: Start isEmpty. Operand 3484 states and 5048 transitions. [2022-10-17 10:17:16,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-17 10:17:16,980 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:17:16,981 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:17:16,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:17:16,982 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:17:16,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:17:16,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1472747592, now seen corresponding path program 1 times [2022-10-17 10:17:16,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:17:16,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323985890] [2022-10-17 10:17:16,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:17:16,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:17:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:17,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:17:17,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:17,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:17:17,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:17,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-17 10:17:17,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:17,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:17:17,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:17,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-10-17 10:17:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:17,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:17:17,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:17,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-10-17 10:17:17,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:17,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 10:17:17,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:17,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-17 10:17:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:17,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-17 10:17:17,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:17:17,356 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2022-10-17 10:17:17,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:17:17,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323985890] [2022-10-17 10:17:17,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323985890] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:17:17,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:17:17,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:17:17,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590383847] [2022-10-17 10:17:17,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:17:17,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:17:17,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:17:17,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:17:17,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:17:17,366 INFO L87 Difference]: Start difference. First operand 3484 states and 5048 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-17 10:17:24,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:17:24,552 INFO L93 Difference]: Finished difference Result 10244 states and 14936 transitions. [2022-10-17 10:17:24,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:17:24,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 73 [2022-10-17 10:17:24,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:17:24,628 INFO L225 Difference]: With dead ends: 10244 [2022-10-17 10:17:24,629 INFO L226 Difference]: Without dead ends: 6773 [2022-10-17 10:17:24,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 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 10:17:24,657 INFO L413 NwaCegarLoop]: 2805 mSDtfsCounter, 2768 mSDsluCounter, 1987 mSDsCounter, 0 mSdLazyCounter, 2552 mSolverCounterSat, 1959 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3266 SdHoareTripleChecker+Valid, 4792 SdHoareTripleChecker+Invalid, 4511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1959 IncrementalHoareTripleChecker+Valid, 2552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-10-17 10:17:24,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3266 Valid, 4792 Invalid, 4511 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1959 Valid, 2552 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-10-17 10:17:24,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6773 states. [2022-10-17 10:17:25,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6773 to 6480. [2022-10-17 10:17:25,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6480 states, 4124 states have (on average 1.2839476236663434) internal successors, (5295), 4310 states have internal predecessors, (5295), 2060 states have call successors, (2060), 294 states have call predecessors, (2060), 293 states have return successors, (2079), 1983 states have call predecessors, (2079), 2057 states have call successors, (2079) [2022-10-17 10:17:25,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6480 states to 6480 states and 9434 transitions. [2022-10-17 10:17:25,291 INFO L78 Accepts]: Start accepts. Automaton has 6480 states and 9434 transitions. Word has length 73 [2022-10-17 10:17:25,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:17:25,294 INFO L495 AbstractCegarLoop]: Abstraction has 6480 states and 9434 transitions. [2022-10-17 10:17:25,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 3 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-10-17 10:17:25,294 INFO L276 IsEmpty]: Start isEmpty. Operand 6480 states and 9434 transitions. [2022-10-17 10:17:25,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-17 10:17:25,296 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:17:25,297 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:17:25,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:17:25,297 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-10-17 10:17:25,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:17:25,298 INFO L85 PathProgramCache]: Analyzing trace with hash -552311738, now seen corresponding path program 1 times [2022-10-17 10:17:25,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:17:25,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546358673] [2022-10-17 10:17:25,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:17:25,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms