./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_fs-nfs-nfs_layout_nfsv41_files.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed328eac-3ac5-4028-bae3-31094fe8d342/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed328eac-3ac5-4028-bae3-31094fe8d342/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed328eac-3ac5-4028-bae3-31094fe8d342/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed328eac-3ac5-4028-bae3-31094fe8d342/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed328eac-3ac5-4028-bae3-31094fe8d342/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed328eac-3ac5-4028-bae3-31094fe8d342/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash d291badf6e321259e0b1b1625d2ed48867e61016cda7885a720272c3e12df877 --- 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-2329fc7 [2022-12-14 04:58:35,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 04:58:35,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 04:58:35,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 04:58:35,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 04:58:35,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 04:58:35,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 04:58:35,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 04:58:35,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 04:58:35,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 04:58:35,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 04:58:35,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 04:58:35,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 04:58:35,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 04:58:35,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 04:58:35,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 04:58:35,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 04:58:35,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 04:58:35,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 04:58:35,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 04:58:35,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 04:58:35,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 04:58:35,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 04:58:35,444 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 04:58:35,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 04:58:35,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 04:58:35,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 04:58:35,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 04:58:35,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 04:58:35,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 04:58:35,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 04:58:35,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 04:58:35,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 04:58:35,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 04:58:35,450 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 04:58:35,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 04:58:35,451 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 04:58:35,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 04:58:35,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 04:58:35,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 04:58:35,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 04:58:35,453 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed328eac-3ac5-4028-bae3-31094fe8d342/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 04:58:35,480 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 04:58:35,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 04:58:35,481 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 04:58:35,481 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 04:58:35,481 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 04:58:35,481 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 04:58:35,482 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 04:58:35,482 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 04:58:35,482 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 04:58:35,482 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 04:58:35,482 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 04:58:35,482 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 04:58:35,483 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 04:58:35,483 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 04:58:35,483 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 04:58:35,483 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 04:58:35,483 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 04:58:35,483 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 04:58:35,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 04:58:35,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 04:58:35,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 04:58:35,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 04:58:35,484 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 04:58:35,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 04:58:35,485 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 04:58:35,485 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 04:58:35,485 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 04:58:35,485 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 04:58:35,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 04:58:35,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:58:35,486 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 04:58:35,486 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 04:58:35,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 04:58:35,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 04:58:35,486 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 04:58:35,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 04:58:35,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 04:58:35,487 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 04:58:35,487 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_ed328eac-3ac5-4028-bae3-31094fe8d342/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed328eac-3ac5-4028-bae3-31094fe8d342/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d291badf6e321259e0b1b1625d2ed48867e61016cda7885a720272c3e12df877 [2022-12-14 04:58:35,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 04:58:35,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 04:58:35,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 04:58:35,701 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 04:58:35,701 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 04:58:35,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed328eac-3ac5-4028-bae3-31094fe8d342/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2022-12-14 04:58:38,291 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 04:58:38,733 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 04:58:38,734 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed328eac-3ac5-4028-bae3-31094fe8d342/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2022-12-14 04:58:38,776 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed328eac-3ac5-4028-bae3-31094fe8d342/bin/utaipan-gh47qXpMRh/data/7df14da86/f3e022c4e9da48799c050001d21fcfee/FLAG116daf71e [2022-12-14 04:58:38,839 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed328eac-3ac5-4028-bae3-31094fe8d342/bin/utaipan-gh47qXpMRh/data/7df14da86/f3e022c4e9da48799c050001d21fcfee [2022-12-14 04:58:38,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 04:58:38,841 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 04:58:38,842 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 04:58:38,842 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 04:58:38,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 04:58:38,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:58:38" (1/1) ... [2022-12-14 04:58:38,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47e222bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:38, skipping insertion in model container [2022-12-14 04:58:38,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:58:38" (1/1) ... [2022-12-14 04:58:38,852 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 04:58:38,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 04:58:39,355 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 04:58:39,365 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 04:58:39,383 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 04:58:39,561 WARN L623 FunctionHandler]: Unknown extern function __xadd_wrong_size [2022-12-14 04:58:39,634 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 04:58:39,640 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 04:58:39,646 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 04:58:39,669 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 04:58:39,679 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 04:58:39,701 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 04:58:39,701 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-12-14 04:58:39,702 WARN L623 FunctionHandler]: Unknown extern function rcu_lockdep_current_cpu_online [2022-12-14 04:58:39,702 WARN L623 FunctionHandler]: Unknown extern function lock_is_held [2022-12-14 04:58:39,721 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-12-14 04:58:39,777 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:39,782 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 04:58:40,030 WARN L623 FunctionHandler]: Unknown extern function _pnfs_return_layout [2022-12-14 04:58:40,088 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 04:58:40,089 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 04:58:40,101 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 04:58:40,102 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 04:58:40,110 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 04:58:40,111 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 04:58:40,132 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,134 WARN L623 FunctionHandler]: Unknown extern function pnfs_write_done_resend_to_mds [2022-12-14 04:58:40,139 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,140 WARN L623 FunctionHandler]: Unknown extern function pnfs_read_done_resend_to_mds [2022-12-14 04:58:40,154 WARN L623 FunctionHandler]: Unknown extern function nfs_remove_bad_delegation [2022-12-14 04:58:40,154 WARN L623 FunctionHandler]: Unknown extern function nfs4_schedule_stateid_recovery [2022-12-14 04:58:40,155 WARN L623 FunctionHandler]: Unknown extern function nfs4_schedule_stateid_recovery [2022-12-14 04:58:40,155 WARN L623 FunctionHandler]: Unknown extern function nfs4_schedule_lease_recovery [2022-12-14 04:58:40,156 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,156 WARN L623 FunctionHandler]: Unknown extern function nfs4_schedule_session_recovery [2022-12-14 04:58:40,156 WARN L623 FunctionHandler]: Unknown extern function rpc_delay [2022-12-14 04:58:40,157 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,157 WARN L623 FunctionHandler]: Unknown extern function pnfs_destroy_layout [2022-12-14 04:58:40,158 WARN L623 FunctionHandler]: Unknown extern function rpc_wake_up [2022-12-14 04:58:40,158 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,159 WARN L623 FunctionHandler]: Unknown extern function nfs4_mark_deviceid_unavailable [2022-12-14 04:58:40,159 WARN L623 FunctionHandler]: Unknown extern function rpc_wake_up [2022-12-14 04:58:40,159 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,160 WARN L623 FunctionHandler]: Unknown extern function rpc_sleep_on [2022-12-14 04:58:40,160 WARN L623 FunctionHandler]: Unknown extern function rpc_wake_up_queued_task [2022-12-14 04:58:40,166 WARN L623 FunctionHandler]: Unknown extern function rpc_restart_call_prepare [2022-12-14 04:58:40,172 WARN L623 FunctionHandler]: Unknown extern function pnfs_set_layoutcommit [2022-12-14 04:58:40,172 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,174 WARN L623 FunctionHandler]: Unknown extern function nfs4_test_deviceid_unavailable [2022-12-14 04:58:40,183 WARN L623 FunctionHandler]: Unknown extern function rpc_exit [2022-12-14 04:58:40,184 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,185 WARN L623 FunctionHandler]: Unknown extern function rpc_exit [2022-12-14 04:58:40,185 WARN L623 FunctionHandler]: Unknown extern function nfs41_setup_sequence [2022-12-14 04:58:40,186 WARN L623 FunctionHandler]: Unknown extern function nfs4_set_rw_stateid [2022-12-14 04:58:40,186 WARN L623 FunctionHandler]: Unknown extern function rpc_exit [2022-12-14 04:58:40,191 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,192 WARN L623 FunctionHandler]: Unknown extern function nfs41_sequence_done [2022-12-14 04:58:40,198 WARN L623 FunctionHandler]: Unknown extern function rpc_count_iostats [2022-12-14 04:58:40,203 WARN L623 FunctionHandler]: Unknown extern function nfs_put_client [2022-12-14 04:58:40,208 WARN L623 FunctionHandler]: Unknown extern function rpc_restart_call_prepare [2022-12-14 04:58:40,219 WARN L623 FunctionHandler]: Unknown extern function rpc_restart_call_prepare [2022-12-14 04:58:40,224 WARN L623 FunctionHandler]: Unknown extern function rpc_exit [2022-12-14 04:58:40,225 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,225 WARN L623 FunctionHandler]: Unknown extern function rpc_exit [2022-12-14 04:58:40,226 WARN L623 FunctionHandler]: Unknown extern function nfs41_setup_sequence [2022-12-14 04:58:40,226 WARN L623 FunctionHandler]: Unknown extern function nfs4_set_rw_stateid [2022-12-14 04:58:40,227 WARN L623 FunctionHandler]: Unknown extern function rpc_exit [2022-12-14 04:58:40,232 WARN L623 FunctionHandler]: Unknown extern function nfs41_sequence_done [2022-12-14 04:58:40,237 WARN L623 FunctionHandler]: Unknown extern function rpc_count_iostats [2022-12-14 04:58:40,242 WARN L623 FunctionHandler]: Unknown extern function nfs_put_client [2022-12-14 04:58:40,247 WARN L623 FunctionHandler]: Unknown extern function nfs41_setup_sequence [2022-12-14 04:58:40,257 WARN L623 FunctionHandler]: Unknown extern function rpc_count_iostats [2022-12-14 04:58:40,262 WARN L623 FunctionHandler]: Unknown extern function pnfs_put_lseg [2022-12-14 04:58:40,262 WARN L623 FunctionHandler]: Unknown extern function nfs_put_client [2022-12-14 04:58:40,262 WARN L623 FunctionHandler]: Unknown extern function nfs_commitdata_release [2022-12-14 04:58:40,269 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,270 WARN L623 FunctionHandler]: Unknown extern function nfs4_find_or_create_ds_client [2022-12-14 04:58:40,271 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,272 WARN L623 FunctionHandler]: Unknown extern function nfs_initiate_read [2022-12-14 04:58:40,277 WARN L623 FunctionHandler]: Unknown extern function nfs4_find_or_create_ds_client [2022-12-14 04:58:40,278 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,279 WARN L623 FunctionHandler]: Unknown extern function nfs_initiate_write [2022-12-14 04:58:40,284 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,285 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,286 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,286 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,287 WARN L623 FunctionHandler]: Unknown extern function nfs4_find_get_deviceid [2022-12-14 04:58:40,288 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,289 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,290 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,290 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,296 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,296 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,301 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,306 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,306 WARN L623 FunctionHandler]: Unknown extern function xdr_init_decode_pages [2022-12-14 04:58:40,307 WARN L623 FunctionHandler]: Unknown extern function xdr_set_scratch_buffer [2022-12-14 04:58:40,307 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 04:58:40,308 WARN L623 FunctionHandler]: Unknown extern function nfs4_print_deviceid [2022-12-14 04:58:40,309 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,310 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 04:58:40,311 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,312 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 04:58:40,313 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,313 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 04:58:40,314 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 04:58:40,319 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,320 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,326 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,332 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,338 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_test [2022-12-14 04:58:40,338 WARN L623 FunctionHandler]: Unknown extern function nfs_generic_pg_test [2022-12-14 04:58:40,344 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 04:58:40,345 WARN L623 FunctionHandler]: Unknown extern function nfs_pageio_reset_read_mds [2022-12-14 04:58:40,345 WARN L623 FunctionHandler]: Unknown extern function pnfs_update_layout [2022-12-14 04:58:40,345 WARN L623 FunctionHandler]: Unknown extern function nfs_pageio_reset_read_mds [2022-12-14 04:58:40,350 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 04:58:40,351 WARN L623 FunctionHandler]: Unknown extern function pnfs_update_layout [2022-12-14 04:58:40,351 WARN L623 FunctionHandler]: Unknown extern function nfs_init_cinfo [2022-12-14 04:58:40,352 WARN L623 FunctionHandler]: Unknown extern function pnfs_put_lseg [2022-12-14 04:58:40,352 WARN L623 FunctionHandler]: Unknown extern function nfs_pageio_reset_write_mds [2022-12-14 04:58:40,362 WARN L623 FunctionHandler]: Unknown extern function nfs_request_remove_commit_list [2022-12-14 04:58:40,362 WARN L623 FunctionHandler]: Unknown extern function pnfs_put_lseg [2022-12-14 04:58:40,372 WARN L623 FunctionHandler]: Unknown extern function nfs_request_add_commit_list [2022-12-14 04:58:40,386 WARN L623 FunctionHandler]: Unknown extern function nfs4_find_or_create_ds_client [2022-12-14 04:58:40,387 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,388 WARN L623 FunctionHandler]: Unknown extern function nfs_initiate_commit [2022-12-14 04:58:40,393 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 04:58:40,393 WARN L623 FunctionHandler]: Unknown extern function __cond_resched_lock [2022-12-14 04:58:40,393 WARN L623 FunctionHandler]: Unknown extern function nfs_request_remove_commit_list [2022-12-14 04:58:40,409 WARN L623 FunctionHandler]: Unknown extern function pnfs_put_lseg [2022-12-14 04:58:40,414 WARN L623 FunctionHandler]: Unknown extern function nfs_commitdata_alloc [2022-12-14 04:58:40,415 WARN L623 FunctionHandler]: Unknown extern function nfs_retry_commit [2022-12-14 04:58:40,415 WARN L623 FunctionHandler]: Unknown extern function pnfs_put_lseg [2022-12-14 04:58:40,420 WARN L623 FunctionHandler]: Unknown extern function nfs_commitdata_alloc [2022-12-14 04:58:40,421 WARN L623 FunctionHandler]: Unknown extern function nfs_retry_commit [2022-12-14 04:58:40,422 WARN L623 FunctionHandler]: Unknown extern function nfs_init_commit [2022-12-14 04:58:40,422 WARN L623 FunctionHandler]: Unknown extern function nfs_initiate_commit [2022-12-14 04:58:40,422 WARN L623 FunctionHandler]: Unknown extern function nfs_init_commit [2022-12-14 04:58:40,437 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,447 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,447 WARN L623 FunctionHandler]: Unknown extern function pnfs_register_layoutdriver [2022-12-14 04:58:40,452 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,452 WARN L623 FunctionHandler]: Unknown extern function pnfs_unregister_layoutdriver [2022-12-14 04:58:40,732 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,732 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,733 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,733 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,733 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,733 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,733 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,733 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,733 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,733 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,734 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,734 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,734 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,734 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,734 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,734 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,734 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,734 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,735 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,735 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,735 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,735 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,735 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,735 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,735 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,735 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,736 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,736 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,736 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,736 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,736 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,736 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,736 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,736 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:40,739 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_readpages [2022-12-14 04:58:40,741 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_writepages [2022-12-14 04:58:40,744 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 04:58:40,834 WARN L623 FunctionHandler]: Unknown extern function out_of_line_wait_on_bit [2022-12-14 04:58:40,845 WARN L623 FunctionHandler]: Unknown extern function __ipv6_addr_type [2022-12-14 04:58:40,883 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,888 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,888 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,894 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,918 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,919 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,919 WARN L623 FunctionHandler]: Unknown extern function nfs4_set_ds_client [2022-12-14 04:58:40,920 WARN L623 FunctionHandler]: Unknown extern function nfs4_init_ds_session [2022-12-14 04:58:40,920 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,921 WARN L623 FunctionHandler]: Unknown extern function nfs_put_client [2022-12-14 04:58:40,926 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,926 WARN L623 FunctionHandler]: Unknown extern function nfs_put_client [2022-12-14 04:58:40,927 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,927 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,927 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,927 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,927 WARN L623 FunctionHandler]: Unknown extern function nfs4_print_deviceid [2022-12-14 04:58:40,928 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,928 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,935 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,940 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,941 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,942 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,942 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,942 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,949 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 04:58:40,950 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 04:58:40,950 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 04:58:40,951 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 04:58:40,951 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,952 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,952 WARN L623 FunctionHandler]: Unknown extern function strrchr [2022-12-14 04:58:40,953 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,953 WARN L623 FunctionHandler]: Unknown extern function strrchr [2022-12-14 04:58:40,953 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,954 WARN L623 FunctionHandler]: Unknown extern function rpc_pton [2022-12-14 04:58:40,954 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,957 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,958 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 04:58:40,958 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,960 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,960 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,961 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,961 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,961 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,961 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,961 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,968 WARN L623 FunctionHandler]: Unknown extern function xdr_init_decode_pages [2022-12-14 04:58:40,968 WARN L623 FunctionHandler]: Unknown extern function xdr_set_scratch_buffer [2022-12-14 04:58:40,969 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 04:58:40,969 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,969 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,970 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 04:58:40,971 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 04:58:40,971 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,971 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,972 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,972 WARN L623 FunctionHandler]: Unknown extern function nfs4_init_deviceid_node [2022-12-14 04:58:40,973 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 04:58:40,973 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,974 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,974 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,975 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 04:58:40,975 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,975 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,975 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,976 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 04:58:40,976 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,981 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,981 WARN L623 FunctionHandler]: Unknown extern function nfs4_insert_deviceid_node [2022-12-14 04:58:40,982 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,983 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,984 WARN L623 FunctionHandler]: Unknown extern function nfs4_proc_getdeviceinfo [2022-12-14 04:58:40,984 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,985 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 04:58:40,985 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,985 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:40,985 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,986 WARN L623 FunctionHandler]: Unknown extern function nfs4_put_deviceid_node [2022-12-14 04:58:40,991 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 04:58:40,996 WARN L623 FunctionHandler]: Unknown extern function wake_up_bit [2022-12-14 04:58:40,997 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:40,998 WARN L623 FunctionHandler]: Unknown extern function nfs4_mark_deviceid_unavailable [2022-12-14 04:58:41,002 WARN L623 FunctionHandler]: Unknown extern function __ldv_atomic_dec_and_lock [2022-12-14 04:58:41,051 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 04:58:41,052 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 04:58:41,060 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 04:58:41,844 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed328eac-3ac5-4028-bae3-31094fe8d342/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[462737,462750] [2022-12-14 04:58:41,848 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed328eac-3ac5-4028-bae3-31094fe8d342/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[462906,462919] [2022-12-14 04:58:41,848 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed328eac-3ac5-4028-bae3-31094fe8d342/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463073,463086] [2022-12-14 04:58:41,849 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed328eac-3ac5-4028-bae3-31094fe8d342/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463241,463254] [2022-12-14 04:58:41,850 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:41,851 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:41,851 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:41,852 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:41,858 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:41,858 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:41,861 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:41,862 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:41,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:58:41,886 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 04:58:41,999 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 04:58:42,000 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 04:58:42,000 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 04:58:42,005 WARN L623 FunctionHandler]: Unknown extern function __xadd_wrong_size [2022-12-14 04:58:42,006 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 04:58:42,007 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 04:58:42,007 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 04:58:42,008 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 04:58:42,009 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 04:58:42,009 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 04:58:42,010 WARN L623 FunctionHandler]: Unknown extern function rcu_is_watching [2022-12-14 04:58:42,010 WARN L623 FunctionHandler]: Unknown extern function rcu_lockdep_current_cpu_online [2022-12-14 04:58:42,010 WARN L623 FunctionHandler]: Unknown extern function lock_is_held [2022-12-14 04:58:42,011 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-12-14 04:58:42,012 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,013 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 04:58:42,020 WARN L623 FunctionHandler]: Unknown extern function _pnfs_return_layout [2022-12-14 04:58:42,021 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 04:58:42,022 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 04:58:42,023 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 04:58:42,024 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 04:58:42,025 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 04:58:42,025 WARN L623 FunctionHandler]: Unknown extern function lockdep_rcu_suspicious [2022-12-14 04:58:42,028 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,029 WARN L623 FunctionHandler]: Unknown extern function pnfs_write_done_resend_to_mds [2022-12-14 04:58:42,032 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,032 WARN L623 FunctionHandler]: Unknown extern function pnfs_read_done_resend_to_mds [2022-12-14 04:58:42,037 WARN L623 FunctionHandler]: Unknown extern function nfs_remove_bad_delegation [2022-12-14 04:58:42,038 WARN L623 FunctionHandler]: Unknown extern function nfs4_schedule_stateid_recovery [2022-12-14 04:58:42,038 WARN L623 FunctionHandler]: Unknown extern function nfs4_schedule_stateid_recovery [2022-12-14 04:58:42,038 WARN L623 FunctionHandler]: Unknown extern function nfs4_schedule_lease_recovery [2022-12-14 04:58:42,039 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,039 WARN L623 FunctionHandler]: Unknown extern function nfs4_schedule_session_recovery [2022-12-14 04:58:42,043 WARN L623 FunctionHandler]: Unknown extern function rpc_delay [2022-12-14 04:58:42,043 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,044 WARN L623 FunctionHandler]: Unknown extern function pnfs_destroy_layout [2022-12-14 04:58:42,044 WARN L623 FunctionHandler]: Unknown extern function rpc_wake_up [2022-12-14 04:58:42,044 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,045 WARN L623 FunctionHandler]: Unknown extern function nfs4_mark_deviceid_unavailable [2022-12-14 04:58:42,045 WARN L623 FunctionHandler]: Unknown extern function rpc_wake_up [2022-12-14 04:58:42,045 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,046 WARN L623 FunctionHandler]: Unknown extern function rpc_sleep_on [2022-12-14 04:58:42,046 WARN L623 FunctionHandler]: Unknown extern function rpc_wake_up_queued_task [2022-12-14 04:58:42,055 WARN L623 FunctionHandler]: Unknown extern function rpc_restart_call_prepare [2022-12-14 04:58:42,056 WARN L623 FunctionHandler]: Unknown extern function pnfs_set_layoutcommit [2022-12-14 04:58:42,057 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,058 WARN L623 FunctionHandler]: Unknown extern function nfs4_test_deviceid_unavailable [2022-12-14 04:58:42,059 WARN L623 FunctionHandler]: Unknown extern function rpc_exit [2022-12-14 04:58:42,059 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,060 WARN L623 FunctionHandler]: Unknown extern function rpc_exit [2022-12-14 04:58:42,060 WARN L623 FunctionHandler]: Unknown extern function nfs41_setup_sequence [2022-12-14 04:58:42,064 WARN L623 FunctionHandler]: Unknown extern function nfs4_set_rw_stateid [2022-12-14 04:58:42,065 WARN L623 FunctionHandler]: Unknown extern function rpc_exit [2022-12-14 04:58:42,065 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,066 WARN L623 FunctionHandler]: Unknown extern function nfs41_sequence_done [2022-12-14 04:58:42,068 WARN L623 FunctionHandler]: Unknown extern function rpc_count_iostats [2022-12-14 04:58:42,070 WARN L623 FunctionHandler]: Unknown extern function nfs_put_client [2022-12-14 04:58:42,082 WARN L623 FunctionHandler]: Unknown extern function rpc_restart_call_prepare [2022-12-14 04:58:42,087 WARN L623 FunctionHandler]: Unknown extern function rpc_restart_call_prepare [2022-12-14 04:58:42,088 WARN L623 FunctionHandler]: Unknown extern function rpc_exit [2022-12-14 04:58:42,089 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,089 WARN L623 FunctionHandler]: Unknown extern function rpc_exit [2022-12-14 04:58:42,089 WARN L623 FunctionHandler]: Unknown extern function nfs41_setup_sequence [2022-12-14 04:58:42,093 WARN L623 FunctionHandler]: Unknown extern function nfs4_set_rw_stateid [2022-12-14 04:58:42,094 WARN L623 FunctionHandler]: Unknown extern function rpc_exit [2022-12-14 04:58:42,094 WARN L623 FunctionHandler]: Unknown extern function nfs41_sequence_done [2022-12-14 04:58:42,095 WARN L623 FunctionHandler]: Unknown extern function rpc_count_iostats [2022-12-14 04:58:42,096 WARN L623 FunctionHandler]: Unknown extern function nfs_put_client [2022-12-14 04:58:42,109 WARN L623 FunctionHandler]: Unknown extern function nfs41_setup_sequence [2022-12-14 04:58:42,113 WARN L623 FunctionHandler]: Unknown extern function rpc_count_iostats [2022-12-14 04:58:42,115 WARN L623 FunctionHandler]: Unknown extern function pnfs_put_lseg [2022-12-14 04:58:42,115 WARN L623 FunctionHandler]: Unknown extern function nfs_put_client [2022-12-14 04:58:42,119 WARN L623 FunctionHandler]: Unknown extern function nfs_commitdata_release [2022-12-14 04:58:42,121 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,122 WARN L623 FunctionHandler]: Unknown extern function nfs4_find_or_create_ds_client [2022-12-14 04:58:42,122 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,127 WARN L623 FunctionHandler]: Unknown extern function nfs_initiate_read [2022-12-14 04:58:42,128 WARN L623 FunctionHandler]: Unknown extern function nfs4_find_or_create_ds_client [2022-12-14 04:58:42,129 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,134 WARN L623 FunctionHandler]: Unknown extern function nfs_initiate_write [2022-12-14 04:58:42,135 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,136 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,136 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,137 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,137 WARN L623 FunctionHandler]: Unknown extern function nfs4_find_get_deviceid [2022-12-14 04:58:42,145 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,146 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,147 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,148 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,149 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,150 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,150 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,151 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,152 WARN L623 FunctionHandler]: Unknown extern function xdr_init_decode_pages [2022-12-14 04:58:42,153 WARN L623 FunctionHandler]: Unknown extern function xdr_set_scratch_buffer [2022-12-14 04:58:42,153 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 04:58:42,154 WARN L623 FunctionHandler]: Unknown extern function nfs4_print_deviceid [2022-12-14 04:58:42,155 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,156 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 04:58:42,157 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,157 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 04:58:42,158 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,159 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 04:58:42,159 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 04:58:42,160 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,161 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,162 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,163 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,164 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_test [2022-12-14 04:58:42,164 WARN L623 FunctionHandler]: Unknown extern function nfs_generic_pg_test [2022-12-14 04:58:42,166 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 04:58:42,166 WARN L623 FunctionHandler]: Unknown extern function nfs_pageio_reset_read_mds [2022-12-14 04:58:42,166 WARN L623 FunctionHandler]: Unknown extern function pnfs_update_layout [2022-12-14 04:58:42,167 WARN L623 FunctionHandler]: Unknown extern function nfs_pageio_reset_read_mds [2022-12-14 04:58:42,167 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 04:58:42,168 WARN L623 FunctionHandler]: Unknown extern function pnfs_update_layout [2022-12-14 04:58:42,169 WARN L623 FunctionHandler]: Unknown extern function nfs_init_cinfo [2022-12-14 04:58:42,169 WARN L623 FunctionHandler]: Unknown extern function pnfs_put_lseg [2022-12-14 04:58:42,169 WARN L623 FunctionHandler]: Unknown extern function nfs_pageio_reset_write_mds [2022-12-14 04:58:42,171 WARN L623 FunctionHandler]: Unknown extern function nfs_request_remove_commit_list [2022-12-14 04:58:42,171 WARN L623 FunctionHandler]: Unknown extern function pnfs_put_lseg [2022-12-14 04:58:42,174 WARN L623 FunctionHandler]: Unknown extern function nfs_request_add_commit_list [2022-12-14 04:58:42,176 WARN L623 FunctionHandler]: Unknown extern function nfs4_find_or_create_ds_client [2022-12-14 04:58:42,176 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,180 WARN L623 FunctionHandler]: Unknown extern function nfs_initiate_commit [2022-12-14 04:58:42,181 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 04:58:42,181 WARN L623 FunctionHandler]: Unknown extern function __cond_resched_lock [2022-12-14 04:58:42,182 WARN L623 FunctionHandler]: Unknown extern function nfs_request_remove_commit_list [2022-12-14 04:58:42,184 WARN L623 FunctionHandler]: Unknown extern function pnfs_put_lseg [2022-12-14 04:58:42,185 WARN L623 FunctionHandler]: Unknown extern function nfs_commitdata_alloc [2022-12-14 04:58:42,186 WARN L623 FunctionHandler]: Unknown extern function nfs_retry_commit [2022-12-14 04:58:42,186 WARN L623 FunctionHandler]: Unknown extern function pnfs_put_lseg [2022-12-14 04:58:42,187 WARN L623 FunctionHandler]: Unknown extern function nfs_commitdata_alloc [2022-12-14 04:58:42,187 WARN L623 FunctionHandler]: Unknown extern function nfs_retry_commit [2022-12-14 04:58:42,189 WARN L623 FunctionHandler]: Unknown extern function nfs_init_commit [2022-12-14 04:58:42,190 WARN L623 FunctionHandler]: Unknown extern function nfs_initiate_commit [2022-12-14 04:58:42,190 WARN L623 FunctionHandler]: Unknown extern function nfs_init_commit [2022-12-14 04:58:42,192 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,194 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,194 WARN L623 FunctionHandler]: Unknown extern function pnfs_register_layoutdriver [2022-12-14 04:58:42,194 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,194 WARN L623 FunctionHandler]: Unknown extern function pnfs_unregister_layoutdriver [2022-12-14 04:58:42,200 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,200 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,200 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,200 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,201 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,201 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,201 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,201 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,201 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,201 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,201 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,201 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,202 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,202 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,202 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,202 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,202 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,202 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,202 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,202 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,203 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,203 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,203 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,203 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,203 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,203 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,203 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,203 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,204 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,204 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,204 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,204 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,204 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,204 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,206 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_readpages [2022-12-14 04:58:42,207 WARN L623 FunctionHandler]: Unknown extern function pnfs_generic_pg_writepages [2022-12-14 04:58:42,210 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 04:58:42,216 WARN L623 FunctionHandler]: Unknown extern function out_of_line_wait_on_bit [2022-12-14 04:58:42,217 WARN L623 FunctionHandler]: Unknown extern function __ipv6_addr_type [2022-12-14 04:58:42,218 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,219 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,219 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,221 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,224 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,225 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,225 WARN L623 FunctionHandler]: Unknown extern function nfs4_set_ds_client [2022-12-14 04:58:42,226 WARN L623 FunctionHandler]: Unknown extern function nfs4_init_ds_session [2022-12-14 04:58:42,226 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,226 WARN L623 FunctionHandler]: Unknown extern function nfs_put_client [2022-12-14 04:58:42,227 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,227 WARN L623 FunctionHandler]: Unknown extern function nfs_put_client [2022-12-14 04:58:42,227 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,228 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,228 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,228 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,228 WARN L623 FunctionHandler]: Unknown extern function nfs4_print_deviceid [2022-12-14 04:58:42,229 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,229 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,231 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,231 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,232 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,233 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,233 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,233 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,235 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 04:58:42,235 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 04:58:42,236 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 04:58:42,236 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 04:58:42,236 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,237 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,237 WARN L623 FunctionHandler]: Unknown extern function strrchr [2022-12-14 04:58:42,238 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,238 WARN L623 FunctionHandler]: Unknown extern function strrchr [2022-12-14 04:58:42,238 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,238 WARN L623 FunctionHandler]: Unknown extern function rpc_pton [2022-12-14 04:58:42,239 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,241 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,241 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 04:58:42,242 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,252 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,253 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,253 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,253 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,254 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,254 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,254 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,256 WARN L623 FunctionHandler]: Unknown extern function xdr_init_decode_pages [2022-12-14 04:58:42,256 WARN L623 FunctionHandler]: Unknown extern function xdr_set_scratch_buffer [2022-12-14 04:58:42,256 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 04:58:42,257 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,257 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,257 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 04:58:42,259 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 04:58:42,259 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,260 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,260 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,261 WARN L623 FunctionHandler]: Unknown extern function nfs4_init_deviceid_node [2022-12-14 04:58:42,269 WARN L623 FunctionHandler]: Unknown extern function xdr_inline_decode [2022-12-14 04:58:42,270 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,271 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,271 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,271 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 04:58:42,272 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,272 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,273 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,273 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 04:58:42,273 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,274 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,274 WARN L623 FunctionHandler]: Unknown extern function nfs4_insert_deviceid_node [2022-12-14 04:58:42,276 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,276 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,277 WARN L623 FunctionHandler]: Unknown extern function nfs4_proc_getdeviceinfo [2022-12-14 04:58:42,277 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,278 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 04:58:42,278 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,278 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 04:58:42,279 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,279 WARN L623 FunctionHandler]: Unknown extern function nfs4_put_deviceid_node [2022-12-14 04:58:42,281 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 04:58:42,281 WARN L623 FunctionHandler]: Unknown extern function wake_up_bit [2022-12-14 04:58:42,282 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 04:58:42,284 WARN L623 FunctionHandler]: Unknown extern function nfs4_mark_deviceid_unavailable [2022-12-14 04:58:42,289 WARN L623 FunctionHandler]: Unknown extern function __ldv_atomic_dec_and_lock [2022-12-14 04:58:42,291 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 04:58:42,292 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 04:58:42,292 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 04:58:42,315 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed328eac-3ac5-4028-bae3-31094fe8d342/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[462737,462750] [2022-12-14 04:58:42,316 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed328eac-3ac5-4028-bae3-31094fe8d342/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[462906,462919] [2022-12-14 04:58:42,316 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed328eac-3ac5-4028-bae3-31094fe8d342/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463073,463086] [2022-12-14 04:58:42,316 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed328eac-3ac5-4028-bae3-31094fe8d342/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i[463241,463254] [2022-12-14 04:58:42,317 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,318 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,319 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,319 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,320 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,320 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,322 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,323 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 04:58:42,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:58:42,438 INFO L208 MainTranslator]: Completed translation [2022-12-14 04:58:42,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:42 WrapperNode [2022-12-14 04:58:42,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 04:58:42,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 04:58:42,440 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 04:58:42,440 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 04:58:42,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:42" (1/1) ... [2022-12-14 04:58:42,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:42" (1/1) ... [2022-12-14 04:58:42,630 INFO L138 Inliner]: procedures = 522, calls = 2020, calls flagged for inlining = 218, calls inlined = 177, statements flattened = 5278 [2022-12-14 04:58:42,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 04:58:42,631 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 04:58:42,631 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 04:58:42,631 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 04:58:42,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:42" (1/1) ... [2022-12-14 04:58:42,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:42" (1/1) ... [2022-12-14 04:58:42,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:42" (1/1) ... [2022-12-14 04:58:42,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:42" (1/1) ... [2022-12-14 04:58:42,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:42" (1/1) ... [2022-12-14 04:58:42,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:42" (1/1) ... [2022-12-14 04:58:42,791 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:42" (1/1) ... [2022-12-14 04:58:42,801 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:42" (1/1) ... [2022-12-14 04:58:42,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 04:58:42,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 04:58:42,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 04:58:42,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 04:58:42,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:42" (1/1) ... [2022-12-14 04:58:42,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:58:42,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed328eac-3ac5-4028-bae3-31094fe8d342/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 04:58:42,851 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed328eac-3ac5-4028-bae3-31094fe8d342/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 04:58:42,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed328eac-3ac5-4028-bae3-31094fe8d342/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 04:58:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_get_ds_info [2022-12-14 04:58:42,884 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_get_ds_info [2022-12-14 04:58:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-12-14 04:58:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_prepare [2022-12-14 04:58:42,884 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_prepare [2022-12-14 04:58:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_prepare_ds [2022-12-14 04:58:42,884 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_prepare_ds [2022-12-14 04:58:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_reset_write [2022-12-14 04:58:42,884 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_reset_write [2022-12-14 04:58:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 04:58:42,884 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 04:58:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-12-14 04:58:42,884 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-12-14 04:58:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 04:58:42,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 04:58:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-12-14 04:58:42,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-12-14 04:58:42,884 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 04:58:42,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 04:58:42,885 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_init_commit [2022-12-14 04:58:42,885 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_init_commit [2022-12-14 04:58:42,885 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_init_decode_pages [2022-12-14 04:58:42,885 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_init_decode_pages [2022-12-14 04:58:42,885 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-12-14 04:58:42,885 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-12-14 04:58:42,885 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_free_lseg [2022-12-14 04:58:42,885 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_free_lseg [2022-12-14 04:58:42,885 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_SERVER [2022-12-14 04:58:42,885 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_SERVER [2022-12-14 04:58:42,885 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_select_ds_fh [2022-12-14 04:58:42,885 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_select_ds_fh [2022-12-14 04:58:42,885 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-12-14 04:58:42,885 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-12-14 04:58:42,885 INFO L130 BoogieDeclarations]: Found specification of procedure FILELAYOUT_LSEG [2022-12-14 04:58:42,885 INFO L138 BoogieDeclarations]: Found implementation of procedure FILELAYOUT_LSEG [2022-12-14 04:58:42,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 04:58:42,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 04:58:42,885 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_pg_init_read [2022-12-14 04:58:42,885 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_pg_init_read [2022-12-14 04:58:42,885 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-12-14 04:58:42,885 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 04:58:42,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 04:58:42,885 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_calc_j_index [2022-12-14 04:58:42,885 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_calc_j_index [2022-12-14 04:58:42,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 04:58:42,886 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_count_stats [2022-12-14 04:58:42,886 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_count_stats [2022-12-14 04:58:42,886 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-14 04:58:42,886 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-14 04:58:42,886 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_get_lseg [2022-12-14 04:58:42,886 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_get_lseg [2022-12-14 04:58:42,886 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-12-14 04:58:42,886 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-12-14 04:58:42,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 04:58:42,886 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_pageio_reset_read_mds [2022-12-14 04:58:42,886 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_pageio_reset_read_mds [2022-12-14 04:58:42,886 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_recover_commit_reqs [2022-12-14 04:58:42,886 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_recover_commit_reqs [2022-12-14 04:58:42,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 04:58:42,886 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 04:58:42,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 04:58:42,886 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_pg_test [2022-12-14 04:58:42,886 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_pg_test [2022-12-14 04:58:42,886 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_pg_init_write [2022-12-14 04:58:42,886 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_pg_init_write [2022-12-14 04:58:42,886 INFO L130 BoogieDeclarations]: Found specification of procedure transfer_commit_list [2022-12-14 04:58:42,886 INFO L138 BoogieDeclarations]: Found implementation of procedure transfer_commit_list [2022-12-14 04:58:42,887 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 04:58:42,887 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_release [2022-12-14 04:58:42,887 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_release [2022-12-14 04:58:42,887 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_free_layout_hdr [2022-12-14 04:58:42,887 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_free_layout_hdr [2022-12-14 04:58:42,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 04:58:42,887 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 04:58:42,887 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_find_or_create_ds_client [2022-12-14 04:58:42,887 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_find_or_create_ds_client [2022-12-14 04:58:42,887 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-12-14 04:58:42,887 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-12-14 04:58:42,887 INFO L130 BoogieDeclarations]: Found specification of procedure div_u64_rem [2022-12-14 04:58:42,887 INFO L138 BoogieDeclarations]: Found implementation of procedure div_u64_rem [2022-12-14 04:58:42,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 04:58:42,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 04:58:42,887 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_free_deveiceid_node [2022-12-14 04:58:42,887 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_free_deveiceid_node [2022-12-14 04:58:42,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 04:58:42,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-12-14 04:58:42,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-12-14 04:58:42,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-12-14 04:58:42,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-12-14 04:58:42,887 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_request_remove_commit_list [2022-12-14 04:58:42,887 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_request_remove_commit_list [2022-12-14 04:58:42,888 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_commit_done [2022-12-14 04:58:42,888 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_commit_done [2022-12-14 04:58:42,888 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-12-14 04:58:42,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-12-14 04:58:42,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 04:58:42,888 INFO L130 BoogieDeclarations]: Found specification of procedure FILELAYOUT_FROM_HDR [2022-12-14 04:58:42,888 INFO L138 BoogieDeclarations]: Found implementation of procedure FILELAYOUT_FROM_HDR [2022-12-14 04:58:42,888 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_inline_decode [2022-12-14 04:58:42,888 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_inline_decode [2022-12-14 04:58:42,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 04:58:42,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 04:58:42,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 04:58:42,888 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_alloc_layout_hdr [2022-12-14 04:58:42,888 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_alloc_layout_hdr [2022-12-14 04:58:42,888 INFO L130 BoogieDeclarations]: Found specification of procedure req_offset [2022-12-14 04:58:42,888 INFO L138 BoogieDeclarations]: Found implementation of procedure req_offset [2022-12-14 04:58:42,888 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 04:58:42,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 04:58:42,888 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_mark_request_commit [2022-12-14 04:58:42,888 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_mark_request_commit [2022-12-14 04:58:42,888 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_80___0 [2022-12-14 04:58:42,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_80___0 [2022-12-14 04:58:42,888 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-12-14 04:58:42,888 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-12-14 04:58:42,889 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 04:58:42,889 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 04:58:42,889 INFO L130 BoogieDeclarations]: Found specification of procedure _filelayout_free_lseg [2022-12-14 04:58:42,889 INFO L138 BoogieDeclarations]: Found implementation of procedure _filelayout_free_lseg [2022-12-14 04:58:42,889 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_alloc_lseg [2022-12-14 04:58:42,889 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_alloc_lseg [2022-12-14 04:58:42,889 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 04:58:42,889 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 04:58:42,889 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_set_rw_stateid [2022-12-14 04:58:42,889 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_set_rw_stateid [2022-12-14 04:58:42,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 04:58:42,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 04:58:42,889 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-12-14 04:58:42,889 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-12-14 04:58:42,889 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 04:58:42,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 04:58:42,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 04:58:42,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 04:58:42,889 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_count_stats [2022-12-14 04:58:42,889 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_count_stats [2022-12-14 04:58:42,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 04:58:42,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 04:58:42,889 INFO L130 BoogieDeclarations]: Found specification of procedure FILELAYOUT_DEVID_NODE [2022-12-14 04:58:42,890 INFO L138 BoogieDeclarations]: Found implementation of procedure FILELAYOUT_DEVID_NODE [2022-12-14 04:58:42,890 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_resend_writes [2022-12-14 04:58:42,890 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_resend_writes [2022-12-14 04:58:42,890 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-12-14 04:58:42,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_try [2022-12-14 04:58:42,890 INFO L130 BoogieDeclarations]: Found specification of procedure nfs41_sequence_done [2022-12-14 04:58:42,890 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs41_sequence_done [2022-12-14 04:58:42,890 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_free_deviceid [2022-12-14 04:58:42,890 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_free_deviceid [2022-12-14 04:58:42,890 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_retry_commit [2022-12-14 04:58:42,890 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_retry_commit [2022-12-14 04:58:42,890 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_scan_commit_lists [2022-12-14 04:58:42,890 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_scan_commit_lists [2022-12-14 04:58:42,890 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_fenceme [2022-12-14 04:58:42,890 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_fenceme [2022-12-14 04:58:42,890 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_commit_pagelist [2022-12-14 04:58:42,890 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_commit_pagelist [2022-12-14 04:58:42,890 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_put_lseg [2022-12-14 04:58:42,890 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_put_lseg [2022-12-14 04:58:42,890 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-12-14 04:58:42,890 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-12-14 04:58:42,890 INFO L130 BoogieDeclarations]: Found specification of procedure __be32_to_cpup [2022-12-14 04:58:42,890 INFO L138 BoogieDeclarations]: Found implementation of procedure __be32_to_cpup [2022-12-14 04:58:42,890 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_count_stats [2022-12-14 04:58:42,891 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_count_stats [2022-12-14 04:58:42,891 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_reset_read [2022-12-14 04:58:42,891 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_reset_read [2022-12-14 04:58:42,891 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_exit [2022-12-14 04:58:42,891 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_exit [2022-12-14 04:58:42,891 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-12-14 04:58:42,891 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-12-14 04:58:42,891 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-12-14 04:58:42,891 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-12-14 04:58:42,891 INFO L130 BoogieDeclarations]: Found specification of procedure rpc_count_iostats [2022-12-14 04:58:42,891 INFO L138 BoogieDeclarations]: Found implementation of procedure rpc_count_iostats [2022-12-14 04:58:42,891 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_clear_request_commit [2022-12-14 04:58:42,891 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_clear_request_commit [2022-12-14 04:58:42,891 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-12-14 04:58:42,891 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-12-14 04:58:42,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 04:58:42,891 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 04:58:42,891 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 04:58:42,891 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_FILEID [2022-12-14 04:58:42,891 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_FILEID [2022-12-14 04:58:42,891 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_calc_ds_index [2022-12-14 04:58:42,891 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_calc_ds_index [2022-12-14 04:58:42,891 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_get_dserver_offset [2022-12-14 04:58:42,891 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_get_dserver_offset [2022-12-14 04:58:42,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 04:58:42,892 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_fl_put_deviceid [2022-12-14 04:58:42,892 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_fl_put_deviceid [2022-12-14 04:58:42,892 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-12-14 04:58:42,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-12-14 04:58:42,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 04:58:42,892 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_prepare [2022-12-14 04:58:42,892 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_prepare [2022-12-14 04:58:42,892 INFO L130 BoogieDeclarations]: Found specification of procedure NFS_I [2022-12-14 04:58:42,892 INFO L138 BoogieDeclarations]: Found implementation of procedure NFS_I [2022-12-14 04:58:42,892 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 04:58:42,892 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 04:58:42,892 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-12-14 04:58:42,892 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-12-14 04:58:42,892 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_put_client [2022-12-14 04:58:42,892 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_put_client [2022-12-14 04:58:42,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 04:58:42,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 04:58:42,892 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_call_done [2022-12-14 04:58:42,892 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_call_done [2022-12-14 04:58:42,892 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 04:58:42,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 04:58:42,892 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_release [2022-12-14 04:58:42,892 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_release [2022-12-14 04:58:42,893 INFO L130 BoogieDeclarations]: Found specification of procedure nfs41_setup_sequence [2022-12-14 04:58:42,893 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs41_setup_sequence [2022-12-14 04:58:42,893 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-12-14 04:58:42,893 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-12-14 04:58:42,893 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_commitdata_alloc [2022-12-14 04:58:42,893 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_commitdata_alloc [2022-12-14 04:58:42,893 INFO L130 BoogieDeclarations]: Found specification of procedure xdr_set_scratch_buffer [2022-12-14 04:58:42,893 INFO L138 BoogieDeclarations]: Found implementation of procedure xdr_set_scratch_buffer [2022-12-14 04:58:42,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_79 [2022-12-14 04:58:42,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_79 [2022-12-14 04:58:42,893 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_pagelist [2022-12-14 04:58:42,893 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_pagelist [2022-12-14 04:58:42,893 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 04:58:42,893 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 04:58:42,893 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 04:58:42,893 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 04:58:42,893 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_call_done [2022-12-14 04:58:42,893 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_call_done [2022-12-14 04:58:42,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 04:58:42,893 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_free_fh_array [2022-12-14 04:58:42,893 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_free_fh_array [2022-12-14 04:58:42,893 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_pagelist [2022-12-14 04:58:42,893 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_pagelist [2022-12-14 04:58:42,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 04:58:42,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 04:58:42,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_80 [2022-12-14 04:58:42,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_80 [2022-12-14 04:58:42,894 INFO L130 BoogieDeclarations]: Found specification of procedure nfs_initiate_commit [2022-12-14 04:58:42,894 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs_initiate_commit [2022-12-14 04:58:42,894 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2022-12-14 04:58:42,894 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-12-14 04:58:42,894 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-12-14 04:58:42,894 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-12-14 04:58:42,894 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-12-14 04:58:42,894 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_print_deviceid [2022-12-14 04:58:42,894 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_print_deviceid [2022-12-14 04:58:42,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 04:58:42,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 04:58:42,894 INFO L130 BoogieDeclarations]: Found specification of procedure pnfs_update_layout [2022-12-14 04:58:42,894 INFO L138 BoogieDeclarations]: Found implementation of procedure pnfs_update_layout [2022-12-14 04:58:42,894 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-12-14 04:58:42,894 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-12-14 04:58:42,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_nfs4filelayout_exit_5_2 [2022-12-14 04:58:42,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_nfs4filelayout_exit_5_2 [2022-12-14 04:58:42,894 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_read_release [2022-12-14 04:58:42,894 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_read_release [2022-12-14 04:58:42,894 INFO L130 BoogieDeclarations]: Found specification of procedure nfs4_mark_deviceid_unavailable [2022-12-14 04:58:42,894 INFO L138 BoogieDeclarations]: Found implementation of procedure nfs4_mark_deviceid_unavailable [2022-12-14 04:58:42,894 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_test_devid_unavailable [2022-12-14 04:58:42,894 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_test_devid_unavailable [2022-12-14 04:58:42,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 04:58:42,895 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-12-14 04:58:42,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-12-14 04:58:42,895 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_write_prepare [2022-12-14 04:58:42,895 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_write_prepare [2022-12-14 04:58:42,895 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 04:58:42,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 04:58:42,895 INFO L130 BoogieDeclarations]: Found specification of procedure filelayout_reset_to_mds [2022-12-14 04:58:42,895 INFO L138 BoogieDeclarations]: Found implementation of procedure filelayout_reset_to_mds [2022-12-14 04:58:43,570 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 04:58:43,573 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 04:58:43,981 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 04:58:46,068 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 04:58:46,169 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 04:58:46,823 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 04:58:46,823 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 04:58:46,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:58:46 BoogieIcfgContainer [2022-12-14 04:58:46,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 04:58:46,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 04:58:46,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 04:58:46,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 04:58:46,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:58:38" (1/3) ... [2022-12-14 04:58:46,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bc06bae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:58:46, skipping insertion in model container [2022-12-14 04:58:46,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:42" (2/3) ... [2022-12-14 04:58:46,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bc06bae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:58:46, skipping insertion in model container [2022-12-14 04:58:46,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:58:46" (3/3) ... [2022-12-14 04:58:46,835 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_fs-nfs-nfs_layout_nfsv41_files.cil.i [2022-12-14 04:58:46,852 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 04:58:46,852 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 04:58:46,931 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 04:58:46,937 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=FINITE_AUTOMATA, 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;@cb68bbc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 04:58:46,937 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-14 04:58:46,946 INFO L276 IsEmpty]: Start isEmpty. Operand has 1743 states, 1021 states have (on average 1.307541625857003) internal successors, (1335), 1072 states have internal predecessors, (1335), 594 states have call successors, (594), 125 states have call predecessors, (594), 124 states have return successors, (588), 565 states have call predecessors, (588), 588 states have call successors, (588) [2022-12-14 04:58:46,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2022-12-14 04:58:46,969 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:58:46,970 INFO L195 NwaCegarLoop]: trace histogram [35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:58:46,970 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 04:58:46,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:58:46,975 INFO L85 PathProgramCache]: Analyzing trace with hash -365546859, now seen corresponding path program 1 times [2022-12-14 04:58:46,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:58:46,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995394626] [2022-12-14 04:58:46,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:58:46,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:58:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:58:47,677 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2022-12-14 04:58:47,677 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:58:47,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995394626] [2022-12-14 04:58:47,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995394626] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:58:47,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:58:47,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 04:58:47,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153377127] [2022-12-14 04:58:47,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:58:47,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 04:58:47,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:58:47,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 04:58:47,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 04:58:47,723 INFO L87 Difference]: Start difference. First operand has 1743 states, 1021 states have (on average 1.307541625857003) internal successors, (1335), 1072 states have internal predecessors, (1335), 594 states have call successors, (594), 125 states have call predecessors, (594), 124 states have return successors, (588), 565 states have call predecessors, (588), 588 states have call successors, (588) Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-12-14 04:58:49,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:58:49,010 INFO L93 Difference]: Finished difference Result 5020 states and 7383 transitions. [2022-12-14 04:58:49,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 04:58:49,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 355 [2022-12-14 04:58:49,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:58:49,038 INFO L225 Difference]: With dead ends: 5020 [2022-12-14 04:58:49,038 INFO L226 Difference]: Without dead ends: 3336 [2022-12-14 04:58:49,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 04:58:49,052 INFO L413 NwaCegarLoop]: 2725 mSDtfsCounter, 2317 mSDsluCounter, 2173 mSDsCounter, 0 mSdLazyCounter, 644 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2317 SdHoareTripleChecker+Valid, 4898 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 644 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 04:58:49,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2317 Valid, 4898 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 644 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 04:58:49,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3336 states. [2022-12-14 04:58:49,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3336 to 3330. [2022-12-14 04:58:49,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3330 states, 1973 states have (on average 1.3041054232133806) internal successors, (2573), 2073 states have internal predecessors, (2573), 1110 states have call successors, (1110), 244 states have call predecessors, (1110), 243 states have return successors, (1106), 1060 states have call predecessors, (1106), 1106 states have call successors, (1106) [2022-12-14 04:58:49,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3330 states to 3330 states and 4789 transitions. [2022-12-14 04:58:49,235 INFO L78 Accepts]: Start accepts. Automaton has 3330 states and 4789 transitions. Word has length 355 [2022-12-14 04:58:49,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:58:49,236 INFO L495 AbstractCegarLoop]: Abstraction has 3330 states and 4789 transitions. [2022-12-14 04:58:49,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-12-14 04:58:49,236 INFO L276 IsEmpty]: Start isEmpty. Operand 3330 states and 4789 transitions. [2022-12-14 04:58:49,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2022-12-14 04:58:49,243 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:58:49,243 INFO L195 NwaCegarLoop]: trace histogram [35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:58:49,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 04:58:49,243 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 04:58:49,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:58:49,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1723682821, now seen corresponding path program 1 times [2022-12-14 04:58:49,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:58:49,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626140085] [2022-12-14 04:58:49,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:58:49,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:58:49,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:58:50,016 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2022-12-14 04:58:50,016 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:58:50,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626140085] [2022-12-14 04:58:50,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626140085] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:58:50,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:58:50,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 04:58:50,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277032548] [2022-12-14 04:58:50,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:58:50,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 04:58:50,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:58:50,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 04:58:50,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-14 04:58:50,019 INFO L87 Difference]: Start difference. First operand 3330 states and 4789 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 04:58:54,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:58:54,884 INFO L93 Difference]: Finished difference Result 9817 states and 14092 transitions. [2022-12-14 04:58:54,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 04:58:54,885 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 365 [2022-12-14 04:58:54,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:58:54,935 INFO L225 Difference]: With dead ends: 9817 [2022-12-14 04:58:54,935 INFO L226 Difference]: Without dead ends: 6556 [2022-12-14 04:58:54,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-12-14 04:58:54,951 INFO L413 NwaCegarLoop]: 3245 mSDtfsCounter, 6255 mSDsluCounter, 6391 mSDsCounter, 0 mSdLazyCounter, 3110 mSolverCounterSat, 1096 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6339 SdHoareTripleChecker+Valid, 9636 SdHoareTripleChecker+Invalid, 4206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1096 IncrementalHoareTripleChecker+Valid, 3110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-12-14 04:58:54,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6339 Valid, 9636 Invalid, 4206 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1096 Valid, 3110 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-12-14 04:58:54,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6556 states. [2022-12-14 04:58:55,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6556 to 6478. [2022-12-14 04:58:55,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6478 states, 3859 states have (on average 1.3065561026172583) internal successors, (5042), 4059 states have internal predecessors, (5042), 2126 states have call successors, (2126), 490 states have call predecessors, (2126), 489 states have return successors, (2122), 2024 states have call predecessors, (2122), 2122 states have call successors, (2122) [2022-12-14 04:58:55,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6478 states to 6478 states and 9290 transitions. [2022-12-14 04:58:55,197 INFO L78 Accepts]: Start accepts. Automaton has 6478 states and 9290 transitions. Word has length 365 [2022-12-14 04:58:55,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:58:55,197 INFO L495 AbstractCegarLoop]: Abstraction has 6478 states and 9290 transitions. [2022-12-14 04:58:55,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 04:58:55,198 INFO L276 IsEmpty]: Start isEmpty. Operand 6478 states and 9290 transitions. [2022-12-14 04:58:55,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2022-12-14 04:58:55,202 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:58:55,203 INFO L195 NwaCegarLoop]: trace histogram [35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:58:55,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 04:58:55,203 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 04:58:55,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:58:55,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1323707496, now seen corresponding path program 1 times [2022-12-14 04:58:55,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:58:55,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194321352] [2022-12-14 04:58:55,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:58:55,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:58:55,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:58:55,445 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2022-12-14 04:58:55,445 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:58:55,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194321352] [2022-12-14 04:58:55,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194321352] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:58:55,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:58:55,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 04:58:55,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8215413] [2022-12-14 04:58:55,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:58:55,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 04:58:55,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:58:55,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 04:58:55,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 04:58:55,448 INFO L87 Difference]: Start difference. First operand 6478 states and 9290 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-12-14 04:58:56,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:58:56,573 INFO L93 Difference]: Finished difference Result 17597 states and 25211 transitions. [2022-12-14 04:58:56,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 04:58:56,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 369 [2022-12-14 04:58:56,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:58:56,611 INFO L225 Difference]: With dead ends: 17597 [2022-12-14 04:58:56,611 INFO L226 Difference]: Without dead ends: 11188 [2022-12-14 04:58:56,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 04:58:56,630 INFO L413 NwaCegarLoop]: 2738 mSDtfsCounter, 2319 mSDsluCounter, 2159 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2319 SdHoareTripleChecker+Valid, 4897 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 04:58:56,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2319 Valid, 4897 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 649 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 04:58:56,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11188 states. [2022-12-14 04:58:57,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11188 to 11150. [2022-12-14 04:58:57,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11150 states, 6662 states have (on average 1.306664665265686) internal successors, (8705), 7012 states have internal predecessors, (8705), 3626 states have call successors, (3626), 859 states have call predecessors, (3626), 858 states have return successors, (3622), 3446 states have call predecessors, (3622), 3622 states have call successors, (3622) [2022-12-14 04:58:57,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11150 states to 11150 states and 15953 transitions. [2022-12-14 04:58:57,100 INFO L78 Accepts]: Start accepts. Automaton has 11150 states and 15953 transitions. Word has length 369 [2022-12-14 04:58:57,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:58:57,101 INFO L495 AbstractCegarLoop]: Abstraction has 11150 states and 15953 transitions. [2022-12-14 04:58:57,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-12-14 04:58:57,101 INFO L276 IsEmpty]: Start isEmpty. Operand 11150 states and 15953 transitions. [2022-12-14 04:58:57,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2022-12-14 04:58:57,105 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:58:57,105 INFO L195 NwaCegarLoop]: trace histogram [35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:58:57,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 04:58:57,105 INFO L420 AbstractCegarLoop]: === Iteration 4 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 04:58:57,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:58:57,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1568248066, now seen corresponding path program 1 times [2022-12-14 04:58:57,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:58:57,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821611645] [2022-12-14 04:58:57,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:58:57,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:58:57,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:58:57,306 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2022-12-14 04:58:57,306 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:58:57,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821611645] [2022-12-14 04:58:57,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821611645] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:58:57,307 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:58:57,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 04:58:57,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628139652] [2022-12-14 04:58:57,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:58:57,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 04:58:57,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:58:57,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 04:58:57,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 04:58:57,309 INFO L87 Difference]: Start difference. First operand 11150 states and 15953 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 04:58:58,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:58:58,715 INFO L93 Difference]: Finished difference Result 31391 states and 44831 transitions. [2022-12-14 04:58:58,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 04:58:58,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 366 [2022-12-14 04:58:58,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:58:58,774 INFO L225 Difference]: With dead ends: 31391 [2022-12-14 04:58:58,774 INFO L226 Difference]: Without dead ends: 20310 [2022-12-14 04:58:58,800 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 04:58:58,801 INFO L413 NwaCegarLoop]: 2717 mSDtfsCounter, 2277 mSDsluCounter, 2144 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2277 SdHoareTripleChecker+Valid, 4861 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 04:58:58,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2277 Valid, 4861 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 04:58:58,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20310 states. [2022-12-14 04:58:59,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20310 to 20262. [2022-12-14 04:58:59,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20262 states, 12096 states have (on average 1.302662037037037) internal successors, (15757), 12756 states have internal predecessors, (15757), 6566 states have call successors, (6566), 1597 states have call predecessors, (6566), 1596 states have return successors, (6562), 6220 states have call predecessors, (6562), 6562 states have call successors, (6562) [2022-12-14 04:58:59,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20262 states to 20262 states and 28885 transitions. [2022-12-14 04:58:59,685 INFO L78 Accepts]: Start accepts. Automaton has 20262 states and 28885 transitions. Word has length 366 [2022-12-14 04:58:59,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:58:59,686 INFO L495 AbstractCegarLoop]: Abstraction has 20262 states and 28885 transitions. [2022-12-14 04:58:59,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 04:58:59,686 INFO L276 IsEmpty]: Start isEmpty. Operand 20262 states and 28885 transitions. [2022-12-14 04:58:59,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2022-12-14 04:58:59,688 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:58:59,688 INFO L195 NwaCegarLoop]: trace histogram [35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:58:59,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 04:58:59,689 INFO L420 AbstractCegarLoop]: === Iteration 5 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 04:58:59,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:58:59,689 INFO L85 PathProgramCache]: Analyzing trace with hash 11028969, now seen corresponding path program 1 times [2022-12-14 04:58:59,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:58:59,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140103680] [2022-12-14 04:58:59,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:58:59,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:58:59,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:58:59,884 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2022-12-14 04:58:59,884 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:58:59,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140103680] [2022-12-14 04:58:59,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140103680] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:58:59,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:58:59,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 04:58:59,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759838410] [2022-12-14 04:58:59,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:58:59,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 04:58:59,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:58:59,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 04:58:59,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 04:58:59,886 INFO L87 Difference]: Start difference. First operand 20262 states and 28885 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 04:59:01,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:59:01,714 INFO L93 Difference]: Finished difference Result 53015 states and 75178 transitions. [2022-12-14 04:59:01,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 04:59:01,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 367 [2022-12-14 04:59:01,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:59:01,825 INFO L225 Difference]: With dead ends: 53015 [2022-12-14 04:59:01,825 INFO L226 Difference]: Without dead ends: 32822 [2022-12-14 04:59:01,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 04:59:01,890 INFO L413 NwaCegarLoop]: 3511 mSDtfsCounter, 2276 mSDsluCounter, 2144 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2276 SdHoareTripleChecker+Valid, 5655 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 04:59:01,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2276 Valid, 5655 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 04:59:01,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32822 states. [2022-12-14 04:59:03,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32822 to 32774. [2022-12-14 04:59:03,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32774 states, 19459 states have (on average 1.295441697928979) internal successors, (25208), 20620 states have internal predecessors, (25208), 10533 states have call successors, (10533), 2779 states have call predecessors, (10533), 2778 states have return successors, (10529), 9862 states have call predecessors, (10529), 10529 states have call successors, (10529) [2022-12-14 04:59:03,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32774 states to 32774 states and 46270 transitions. [2022-12-14 04:59:03,146 INFO L78 Accepts]: Start accepts. Automaton has 32774 states and 46270 transitions. Word has length 367 [2022-12-14 04:59:03,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:59:03,147 INFO L495 AbstractCegarLoop]: Abstraction has 32774 states and 46270 transitions. [2022-12-14 04:59:03,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 04:59:03,147 INFO L276 IsEmpty]: Start isEmpty. Operand 32774 states and 46270 transitions. [2022-12-14 04:59:03,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2022-12-14 04:59:03,149 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:59:03,149 INFO L195 NwaCegarLoop]: trace histogram [35, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:59:03,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 04:59:03,150 INFO L420 AbstractCegarLoop]: === Iteration 6 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 04:59:03,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:59:03,150 INFO L85 PathProgramCache]: Analyzing trace with hash 2105519154, now seen corresponding path program 1 times [2022-12-14 04:59:03,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:59:03,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800812180] [2022-12-14 04:59:03,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:59:03,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:59:03,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:59:03,408 INFO L134 CoverageAnalysis]: Checked inductivity of 4556 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4556 trivial. 0 not checked. [2022-12-14 04:59:03,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:59:03,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800812180] [2022-12-14 04:59:03,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800812180] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:59:03,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:59:03,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 04:59:03,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784023424] [2022-12-14 04:59:03,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:59:03,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 04:59:03,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:59:03,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 04:59:03,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 04:59:03,410 INFO L87 Difference]: Start difference. First operand 32774 states and 46270 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-12-14 04:59:06,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:59:06,456 INFO L93 Difference]: Finished difference Result 93921 states and 132646 transitions. [2022-12-14 04:59:06,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 04:59:06,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 372 [2022-12-14 04:59:06,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:59:06,678 INFO L225 Difference]: With dead ends: 93921 [2022-12-14 04:59:06,678 INFO L226 Difference]: Without dead ends: 61216 [2022-12-14 04:59:06,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 04:59:06,777 INFO L413 NwaCegarLoop]: 3054 mSDtfsCounter, 2320 mSDsluCounter, 2159 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2320 SdHoareTripleChecker+Valid, 5213 SdHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 04:59:06,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2320 Valid, 5213 Invalid, 700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 04:59:06,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61216 states. [2022-12-14 04:59:08,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61216 to 61172. [2022-12-14 04:59:08,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61172 states, 36498 states have (on average 1.2950572634116937) internal successors, (47267), 38585 states have internal predecessors, (47267), 19517 states have call successors, (19517), 5154 states have call predecessors, (19517), 5153 states have return successors, (19513), 18356 states have call predecessors, (19513), 19513 states have call successors, (19513) [2022-12-14 04:59:09,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61172 states to 61172 states and 86297 transitions. [2022-12-14 04:59:09,071 INFO L78 Accepts]: Start accepts. Automaton has 61172 states and 86297 transitions. Word has length 372 [2022-12-14 04:59:09,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:59:09,072 INFO L495 AbstractCegarLoop]: Abstraction has 61172 states and 86297 transitions. [2022-12-14 04:59:09,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-12-14 04:59:09,073 INFO L276 IsEmpty]: Start isEmpty. Operand 61172 states and 86297 transitions. [2022-12-14 04:59:09,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2022-12-14 04:59:09,077 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:59:09,078 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:59:09,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 04:59:09,078 INFO L420 AbstractCegarLoop]: === Iteration 7 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 04:59:09,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:59:09,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1968730114, now seen corresponding path program 1 times [2022-12-14 04:59:09,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:59:09,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946617588] [2022-12-14 04:59:09,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:59:09,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:59:09,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:59:09,734 INFO L134 CoverageAnalysis]: Checked inductivity of 4702 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4702 trivial. 0 not checked. [2022-12-14 04:59:09,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:59:09,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946617588] [2022-12-14 04:59:09,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946617588] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:59:09,734 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:59:09,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 04:59:09,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79549454] [2022-12-14 04:59:09,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:59:09,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 04:59:09,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:59:09,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 04:59:09,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 04:59:09,737 INFO L87 Difference]: Start difference. First operand 61172 states and 86297 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-14 04:59:12,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:59:12,937 INFO L93 Difference]: Finished difference Result 61178 states and 86302 transitions. [2022-12-14 04:59:12,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 04:59:12,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 383 [2022-12-14 04:59:12,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:59:13,119 INFO L225 Difference]: With dead ends: 61178 [2022-12-14 04:59:13,119 INFO L226 Difference]: Without dead ends: 61176 [2022-12-14 04:59:13,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 04:59:13,142 INFO L413 NwaCegarLoop]: 2177 mSDtfsCounter, 2394 mSDsluCounter, 4336 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2410 SdHoareTripleChecker+Valid, 6513 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 04:59:13,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2410 Valid, 6513 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 04:59:13,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61176 states. [2022-12-14 04:59:15,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61176 to 61176. [2022-12-14 04:59:15,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61176 states, 36501 states have (on average 1.29503301279417) internal successors, (47270), 38588 states have internal predecessors, (47270), 19517 states have call successors, (19517), 5155 states have call predecessors, (19517), 5154 states have return successors, (19513), 18356 states have call predecessors, (19513), 19513 states have call successors, (19513) [2022-12-14 04:59:15,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61176 states to 61176 states and 86300 transitions. [2022-12-14 04:59:15,405 INFO L78 Accepts]: Start accepts. Automaton has 61176 states and 86300 transitions. Word has length 383 [2022-12-14 04:59:15,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:59:15,406 INFO L495 AbstractCegarLoop]: Abstraction has 61176 states and 86300 transitions. [2022-12-14 04:59:15,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-14 04:59:15,406 INFO L276 IsEmpty]: Start isEmpty. Operand 61176 states and 86300 transitions. [2022-12-14 04:59:15,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2022-12-14 04:59:15,408 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:59:15,409 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:59:15,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 04:59:15,409 INFO L420 AbstractCegarLoop]: === Iteration 8 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 04:59:15,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:59:15,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1848874810, now seen corresponding path program 1 times [2022-12-14 04:59:15,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:59:15,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147498825] [2022-12-14 04:59:15,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:59:15,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:59:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:59:15,781 INFO L134 CoverageAnalysis]: Checked inductivity of 4705 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4703 trivial. 0 not checked. [2022-12-14 04:59:15,781 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:59:15,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147498825] [2022-12-14 04:59:15,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147498825] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:59:15,781 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:59:15,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 04:59:15,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135456246] [2022-12-14 04:59:15,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:59:15,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 04:59:15,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:59:15,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 04:59:15,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 04:59:15,783 INFO L87 Difference]: Start difference. First operand 61176 states and 86300 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-12-14 04:59:18,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:59:18,687 INFO L93 Difference]: Finished difference Result 61182 states and 86305 transitions. [2022-12-14 04:59:18,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 04:59:18,688 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 389 [2022-12-14 04:59:18,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:59:18,907 INFO L225 Difference]: With dead ends: 61182 [2022-12-14 04:59:18,908 INFO L226 Difference]: Without dead ends: 61180 [2022-12-14 04:59:18,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 04:59:18,935 INFO L413 NwaCegarLoop]: 2180 mSDtfsCounter, 2389 mSDsluCounter, 4336 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2404 SdHoareTripleChecker+Valid, 6516 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 04:59:18,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2404 Valid, 6516 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 04:59:18,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61180 states. [2022-12-14 04:59:21,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61180 to 61180. [2022-12-14 04:59:21,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61180 states, 36504 states have (on average 1.2950087661626124) internal successors, (47273), 38591 states have internal predecessors, (47273), 19517 states have call successors, (19517), 5156 states have call predecessors, (19517), 5155 states have return successors, (19513), 18356 states have call predecessors, (19513), 19513 states have call successors, (19513) [2022-12-14 04:59:21,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61180 states to 61180 states and 86303 transitions. [2022-12-14 04:59:21,912 INFO L78 Accepts]: Start accepts. Automaton has 61180 states and 86303 transitions. Word has length 389 [2022-12-14 04:59:21,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:59:21,912 INFO L495 AbstractCegarLoop]: Abstraction has 61180 states and 86303 transitions. [2022-12-14 04:59:21,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (43), 3 states have call predecessors, (43), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-12-14 04:59:21,913 INFO L276 IsEmpty]: Start isEmpty. Operand 61180 states and 86303 transitions. [2022-12-14 04:59:21,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2022-12-14 04:59:21,915 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:59:21,915 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:59:21,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 04:59:21,915 INFO L420 AbstractCegarLoop]: === Iteration 9 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 04:59:21,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:59:21,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1692367106, now seen corresponding path program 1 times [2022-12-14 04:59:21,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:59:21,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846163000] [2022-12-14 04:59:21,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:59:21,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:59:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:59:22,241 INFO L134 CoverageAnalysis]: Checked inductivity of 4710 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4706 trivial. 0 not checked. [2022-12-14 04:59:22,241 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:59:22,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846163000] [2022-12-14 04:59:22,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846163000] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:59:22,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:59:22,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 04:59:22,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120302190] [2022-12-14 04:59:22,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:59:22,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 04:59:22,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:59:22,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 04:59:22,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 04:59:22,243 INFO L87 Difference]: Start difference. First operand 61180 states and 86303 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-12-14 04:59:24,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:59:24,968 INFO L93 Difference]: Finished difference Result 61186 states and 86308 transitions. [2022-12-14 04:59:24,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 04:59:24,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 393 [2022-12-14 04:59:24,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:59:25,155 INFO L225 Difference]: With dead ends: 61186 [2022-12-14 04:59:25,155 INFO L226 Difference]: Without dead ends: 61184 [2022-12-14 04:59:25,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 04:59:25,184 INFO L413 NwaCegarLoop]: 2180 mSDtfsCounter, 2389 mSDsluCounter, 4336 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2403 SdHoareTripleChecker+Valid, 6516 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 04:59:25,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2403 Valid, 6516 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 04:59:25,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61184 states. [2022-12-14 04:59:27,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61184 to 61184. [2022-12-14 04:59:27,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61184 states, 36507 states have (on average 1.294984523516038) internal successors, (47276), 38594 states have internal predecessors, (47276), 19517 states have call successors, (19517), 5157 states have call predecessors, (19517), 5156 states have return successors, (19513), 18356 states have call predecessors, (19513), 19513 states have call successors, (19513) [2022-12-14 04:59:27,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61184 states to 61184 states and 86306 transitions. [2022-12-14 04:59:27,911 INFO L78 Accepts]: Start accepts. Automaton has 61184 states and 86306 transitions. Word has length 393 [2022-12-14 04:59:27,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:59:27,912 INFO L495 AbstractCegarLoop]: Abstraction has 61184 states and 86306 transitions. [2022-12-14 04:59:27,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (44), 3 states have call predecessors, (44), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2022-12-14 04:59:27,912 INFO L276 IsEmpty]: Start isEmpty. Operand 61184 states and 86306 transitions. [2022-12-14 04:59:27,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2022-12-14 04:59:27,914 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:59:27,914 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:59:27,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 04:59:27,915 INFO L420 AbstractCegarLoop]: === Iteration 10 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 04:59:27,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:59:27,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1326917266, now seen corresponding path program 1 times [2022-12-14 04:59:27,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:59:27,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797236451] [2022-12-14 04:59:27,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:59:27,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:59:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:59:28,216 INFO L134 CoverageAnalysis]: Checked inductivity of 4730 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4724 trivial. 0 not checked. [2022-12-14 04:59:28,217 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:59:28,217 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797236451] [2022-12-14 04:59:28,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797236451] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:59:28,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:59:28,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 04:59:28,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316196598] [2022-12-14 04:59:28,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:59:28,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 04:59:28,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:59:28,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 04:59:28,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 04:59:28,219 INFO L87 Difference]: Start difference. First operand 61184 states and 86306 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-12-14 04:59:31,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:59:31,484 INFO L93 Difference]: Finished difference Result 61190 states and 86311 transitions. [2022-12-14 04:59:31,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 04:59:31,484 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 406 [2022-12-14 04:59:31,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:59:31,647 INFO L225 Difference]: With dead ends: 61190 [2022-12-14 04:59:31,648 INFO L226 Difference]: Without dead ends: 61188 [2022-12-14 04:59:31,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 04:59:31,666 INFO L413 NwaCegarLoop]: 2180 mSDtfsCounter, 2389 mSDsluCounter, 4336 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2402 SdHoareTripleChecker+Valid, 6516 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 04:59:31,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2402 Valid, 6516 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 04:59:31,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61188 states. [2022-12-14 04:59:34,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61188 to 61188. [2022-12-14 04:59:34,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61188 states, 36510 states have (on average 1.2949602848534647) internal successors, (47279), 38597 states have internal predecessors, (47279), 19517 states have call successors, (19517), 5158 states have call predecessors, (19517), 5157 states have return successors, (19513), 18356 states have call predecessors, (19513), 19513 states have call successors, (19513) [2022-12-14 04:59:34,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61188 states to 61188 states and 86309 transitions. [2022-12-14 04:59:34,512 INFO L78 Accepts]: Start accepts. Automaton has 61188 states and 86309 transitions. Word has length 406 [2022-12-14 04:59:34,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:59:34,512 INFO L495 AbstractCegarLoop]: Abstraction has 61188 states and 86309 transitions. [2022-12-14 04:59:34,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-12-14 04:59:34,513 INFO L276 IsEmpty]: Start isEmpty. Operand 61188 states and 86309 transitions. [2022-12-14 04:59:34,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2022-12-14 04:59:34,515 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:59:34,515 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:59:34,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 04:59:34,516 INFO L420 AbstractCegarLoop]: === Iteration 11 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 04:59:34,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:59:34,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1082289662, now seen corresponding path program 1 times [2022-12-14 04:59:34,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:59:34,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816034618] [2022-12-14 04:59:34,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:59:34,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:59:34,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:59:34,800 INFO L134 CoverageAnalysis]: Checked inductivity of 4734 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4726 trivial. 0 not checked. [2022-12-14 04:59:34,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:59:34,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816034618] [2022-12-14 04:59:34,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816034618] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:59:34,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:59:34,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 04:59:34,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009282968] [2022-12-14 04:59:34,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:59:34,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 04:59:34,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:59:34,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 04:59:34,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 04:59:34,803 INFO L87 Difference]: Start difference. First operand 61188 states and 86309 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-12-14 04:59:38,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:59:38,011 INFO L93 Difference]: Finished difference Result 61194 states and 86314 transitions. [2022-12-14 04:59:38,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 04:59:38,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 403 [2022-12-14 04:59:38,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:59:38,309 INFO L225 Difference]: With dead ends: 61194 [2022-12-14 04:59:38,310 INFO L226 Difference]: Without dead ends: 61192 [2022-12-14 04:59:38,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 04:59:38,326 INFO L413 NwaCegarLoop]: 2180 mSDtfsCounter, 2389 mSDsluCounter, 4336 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2401 SdHoareTripleChecker+Valid, 6516 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 04:59:38,326 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2401 Valid, 6516 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 04:59:38,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61192 states. [2022-12-14 04:59:41,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61192 to 61192. [2022-12-14 04:59:41,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61192 states, 36513 states have (on average 1.2949360501739107) internal successors, (47282), 38600 states have internal predecessors, (47282), 19517 states have call successors, (19517), 5159 states have call predecessors, (19517), 5158 states have return successors, (19513), 18356 states have call predecessors, (19513), 19513 states have call successors, (19513) [2022-12-14 04:59:41,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61192 states to 61192 states and 86312 transitions. [2022-12-14 04:59:41,356 INFO L78 Accepts]: Start accepts. Automaton has 61192 states and 86312 transitions. Word has length 403 [2022-12-14 04:59:41,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:59:41,357 INFO L495 AbstractCegarLoop]: Abstraction has 61192 states and 86312 transitions. [2022-12-14 04:59:41,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-12-14 04:59:41,357 INFO L276 IsEmpty]: Start isEmpty. Operand 61192 states and 86312 transitions. [2022-12-14 04:59:41,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2022-12-14 04:59:41,360 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:59:41,360 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 6, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:59:41,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 04:59:41,360 INFO L420 AbstractCegarLoop]: === Iteration 12 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 04:59:41,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:59:41,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1756083120, now seen corresponding path program 1 times [2022-12-14 04:59:41,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:59:41,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368978112] [2022-12-14 04:59:41,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:59:41,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:59:41,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:59:41,643 INFO L134 CoverageAnalysis]: Checked inductivity of 4752 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 4742 trivial. 0 not checked. [2022-12-14 04:59:41,643 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:59:41,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368978112] [2022-12-14 04:59:41,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368978112] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:59:41,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:59:41,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 04:59:41,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164968790] [2022-12-14 04:59:41,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:59:41,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 04:59:41,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:59:41,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 04:59:41,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 04:59:41,646 INFO L87 Difference]: Start difference. First operand 61192 states and 86312 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-12-14 04:59:45,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:59:45,215 INFO L93 Difference]: Finished difference Result 61198 states and 86317 transitions. [2022-12-14 04:59:45,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 04:59:45,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 408 [2022-12-14 04:59:45,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:59:45,387 INFO L225 Difference]: With dead ends: 61198 [2022-12-14 04:59:45,387 INFO L226 Difference]: Without dead ends: 61196 [2022-12-14 04:59:45,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 04:59:45,411 INFO L413 NwaCegarLoop]: 2180 mSDtfsCounter, 2389 mSDsluCounter, 4336 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2400 SdHoareTripleChecker+Valid, 6516 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 04:59:45,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2400 Valid, 6516 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 04:59:45,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61196 states. [2022-12-14 04:59:48,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61196 to 61196. [2022-12-14 04:59:48,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61196 states, 36516 states have (on average 1.294911819476394) internal successors, (47285), 38603 states have internal predecessors, (47285), 19517 states have call successors, (19517), 5160 states have call predecessors, (19517), 5159 states have return successors, (19513), 18356 states have call predecessors, (19513), 19513 states have call successors, (19513) [2022-12-14 04:59:48,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61196 states to 61196 states and 86315 transitions. [2022-12-14 04:59:48,971 INFO L78 Accepts]: Start accepts. Automaton has 61196 states and 86315 transitions. Word has length 408 [2022-12-14 04:59:48,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:59:48,971 INFO L495 AbstractCegarLoop]: Abstraction has 61196 states and 86315 transitions. [2022-12-14 04:59:48,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-12-14 04:59:48,971 INFO L276 IsEmpty]: Start isEmpty. Operand 61196 states and 86315 transitions. [2022-12-14 04:59:48,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2022-12-14 04:59:48,975 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:59:48,975 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 7, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:59:48,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 04:59:48,975 INFO L420 AbstractCegarLoop]: === Iteration 13 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 04:59:48,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:59:48,976 INFO L85 PathProgramCache]: Analyzing trace with hash -530496258, now seen corresponding path program 1 times [2022-12-14 04:59:48,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:59:48,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276530731] [2022-12-14 04:59:48,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:59:48,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:59:49,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:59:49,274 INFO L134 CoverageAnalysis]: Checked inductivity of 4774 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 4762 trivial. 0 not checked. [2022-12-14 04:59:49,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:59:49,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276530731] [2022-12-14 04:59:49,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276530731] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:59:49,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:59:49,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 04:59:49,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224067712] [2022-12-14 04:59:49,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:59:49,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 04:59:49,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:59:49,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 04:59:49,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 04:59:49,276 INFO L87 Difference]: Start difference. First operand 61196 states and 86315 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-12-14 04:59:52,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 04:59:52,866 INFO L93 Difference]: Finished difference Result 61202 states and 86320 transitions. [2022-12-14 04:59:52,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 04:59:52,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 413 [2022-12-14 04:59:52,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 04:59:53,045 INFO L225 Difference]: With dead ends: 61202 [2022-12-14 04:59:53,045 INFO L226 Difference]: Without dead ends: 61200 [2022-12-14 04:59:53,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 04:59:53,070 INFO L413 NwaCegarLoop]: 2180 mSDtfsCounter, 2389 mSDsluCounter, 4336 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2399 SdHoareTripleChecker+Valid, 6516 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-14 04:59:53,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2399 Valid, 6516 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-14 04:59:53,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61200 states. [2022-12-14 04:59:56,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61200 to 61200. [2022-12-14 04:59:56,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61200 states, 36519 states have (on average 1.2948875927599333) internal successors, (47288), 38606 states have internal predecessors, (47288), 19517 states have call successors, (19517), 5161 states have call predecessors, (19517), 5160 states have return successors, (19513), 18356 states have call predecessors, (19513), 19513 states have call successors, (19513) [2022-12-14 04:59:56,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61200 states to 61200 states and 86318 transitions. [2022-12-14 04:59:56,594 INFO L78 Accepts]: Start accepts. Automaton has 61200 states and 86318 transitions. Word has length 413 [2022-12-14 04:59:56,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 04:59:56,595 INFO L495 AbstractCegarLoop]: Abstraction has 61200 states and 86318 transitions. [2022-12-14 04:59:56,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (48), 3 states have call predecessors, (48), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-12-14 04:59:56,595 INFO L276 IsEmpty]: Start isEmpty. Operand 61200 states and 86318 transitions. [2022-12-14 04:59:56,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2022-12-14 04:59:56,598 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:59:56,599 INFO L195 NwaCegarLoop]: trace histogram [38, 34, 34, 34, 34, 34, 34, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:59:56,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 04:59:56,599 INFO L420 AbstractCegarLoop]: === Iteration 14 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 04:59:56,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:59:56,599 INFO L85 PathProgramCache]: Analyzing trace with hash -32935485, now seen corresponding path program 1 times [2022-12-14 04:59:56,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:59:56,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498154782] [2022-12-14 04:59:56,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:59:56,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:59:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 04:59:56,828 INFO L134 CoverageAnalysis]: Checked inductivity of 4790 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4783 trivial. 0 not checked. [2022-12-14 04:59:56,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 04:59:56,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498154782] [2022-12-14 04:59:56,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498154782] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 04:59:56,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 04:59:56,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 04:59:56,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764704089] [2022-12-14 04:59:56,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 04:59:56,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 04:59:56,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 04:59:56,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 04:59:56,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 04:59:56,831 INFO L87 Difference]: Start difference. First operand 61200 states and 86318 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-12-14 05:00:02,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:00:02,811 INFO L93 Difference]: Finished difference Result 151300 states and 213422 transitions. [2022-12-14 05:00:02,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:00:02,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 413 [2022-12-14 05:00:02,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:00:03,067 INFO L225 Difference]: With dead ends: 151300 [2022-12-14 05:00:03,067 INFO L226 Difference]: Without dead ends: 90216 [2022-12-14 05:00:03,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:00:03,189 INFO L413 NwaCegarLoop]: 3809 mSDtfsCounter, 2318 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2318 SdHoareTripleChecker+Valid, 5966 SdHoareTripleChecker+Invalid, 900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 05:00:03,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2318 Valid, 5966 Invalid, 900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 05:00:03,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90216 states. [2022-12-14 05:00:08,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90216 to 90144. [2022-12-14 05:00:08,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90144 states, 53838 states have (on average 1.2947732085144321) internal successors, (69708), 56881 states have internal predecessors, (69708), 28691 states have call successors, (28691), 7612 states have call predecessors, (28691), 7611 states have return successors, (28687), 27018 states have call predecessors, (28687), 28687 states have call successors, (28687) [2022-12-14 05:00:08,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90144 states to 90144 states and 127086 transitions. [2022-12-14 05:00:08,979 INFO L78 Accepts]: Start accepts. Automaton has 90144 states and 127086 transitions. Word has length 413 [2022-12-14 05:00:08,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:00:08,979 INFO L495 AbstractCegarLoop]: Abstraction has 90144 states and 127086 transitions. [2022-12-14 05:00:08,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-12-14 05:00:08,979 INFO L276 IsEmpty]: Start isEmpty. Operand 90144 states and 127086 transitions. [2022-12-14 05:00:08,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2022-12-14 05:00:08,983 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:00:08,983 INFO L195 NwaCegarLoop]: trace histogram [38, 34, 34, 34, 34, 34, 34, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:00:08,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 05:00:08,983 INFO L420 AbstractCegarLoop]: === Iteration 15 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 05:00:08,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:00:08,984 INFO L85 PathProgramCache]: Analyzing trace with hash 400760881, now seen corresponding path program 1 times [2022-12-14 05:00:08,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:00:08,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101705574] [2022-12-14 05:00:08,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:00:08,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:00:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:00:09,136 INFO L134 CoverageAnalysis]: Checked inductivity of 4791 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4784 trivial. 0 not checked. [2022-12-14 05:00:09,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:00:09,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101705574] [2022-12-14 05:00:09,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101705574] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:00:09,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:00:09,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:00:09,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357652892] [2022-12-14 05:00:09,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:00:09,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:00:09,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:00:09,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:00:09,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:00:09,138 INFO L87 Difference]: Start difference. First operand 90144 states and 127086 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-12-14 05:00:16,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:00:16,837 INFO L93 Difference]: Finished difference Result 216468 states and 304686 transitions. [2022-12-14 05:00:16,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:00:16,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 411 [2022-12-14 05:00:16,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:00:17,239 INFO L225 Difference]: With dead ends: 216468 [2022-12-14 05:00:17,239 INFO L226 Difference]: Without dead ends: 126440 [2022-12-14 05:00:17,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:00:17,446 INFO L413 NwaCegarLoop]: 3313 mSDtfsCounter, 2277 mSDsluCounter, 2142 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2277 SdHoareTripleChecker+Valid, 5455 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 05:00:17,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2277 Valid, 5455 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 05:00:17,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126440 states. [2022-12-14 05:00:24,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126440 to 126340. [2022-12-14 05:00:24,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126340 states, 75306 states have (on average 1.2922741879797095) internal successors, (97316), 79707 states have internal predecessors, (97316), 40097 states have call successors, (40097), 10934 states have call predecessors, (40097), 10933 states have return successors, (40093), 37594 states have call predecessors, (40093), 40093 states have call successors, (40093) [2022-12-14 05:00:25,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126340 states to 126340 states and 177506 transitions. [2022-12-14 05:00:25,414 INFO L78 Accepts]: Start accepts. Automaton has 126340 states and 177506 transitions. Word has length 411 [2022-12-14 05:00:25,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:00:25,414 INFO L495 AbstractCegarLoop]: Abstraction has 126340 states and 177506 transitions. [2022-12-14 05:00:25,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-12-14 05:00:25,415 INFO L276 IsEmpty]: Start isEmpty. Operand 126340 states and 177506 transitions. [2022-12-14 05:00:25,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2022-12-14 05:00:25,420 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:00:25,420 INFO L195 NwaCegarLoop]: trace histogram [38, 34, 34, 34, 34, 34, 34, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:00:25,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 05:00:25,420 INFO L420 AbstractCegarLoop]: === Iteration 16 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 05:00:25,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:00:25,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1996727543, now seen corresponding path program 1 times [2022-12-14 05:00:25,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:00:25,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779256729] [2022-12-14 05:00:25,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:00:25,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:00:25,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:00:25,668 INFO L134 CoverageAnalysis]: Checked inductivity of 4790 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4783 trivial. 0 not checked. [2022-12-14 05:00:25,668 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:00:25,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779256729] [2022-12-14 05:00:25,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779256729] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:00:25,668 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:00:25,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:00:25,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184548619] [2022-12-14 05:00:25,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:00:25,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:00:25,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:00:25,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:00:25,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:00:25,670 INFO L87 Difference]: Start difference. First operand 126340 states and 177506 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-14 05:00:37,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:00:37,250 INFO L93 Difference]: Finished difference Result 311018 states and 437085 transitions. [2022-12-14 05:00:37,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:00:37,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 416 [2022-12-14 05:00:37,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:00:38,144 INFO L225 Difference]: With dead ends: 311018 [2022-12-14 05:00:38,144 INFO L226 Difference]: Without dead ends: 184794 [2022-12-14 05:00:38,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:00:38,550 INFO L413 NwaCegarLoop]: 3797 mSDtfsCounter, 2319 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2319 SdHoareTripleChecker+Valid, 5954 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:00:38,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2319 Valid, 5954 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 05:00:38,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184794 states. [2022-12-14 05:00:49,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184794 to 184718. [2022-12-14 05:00:49,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184718 states, 110260 states have (on average 1.2921730455287501) internal successors, (142475), 116585 states have internal predecessors, (142475), 58483 states have call successors, (58483), 15972 states have call predecessors, (58483), 15971 states have return successors, (58479), 54944 states have call predecessors, (58479), 58479 states have call successors, (58479) [2022-12-14 05:00:49,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184718 states to 184718 states and 259437 transitions. [2022-12-14 05:00:49,909 INFO L78 Accepts]: Start accepts. Automaton has 184718 states and 259437 transitions. Word has length 416 [2022-12-14 05:00:49,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:00:49,910 INFO L495 AbstractCegarLoop]: Abstraction has 184718 states and 259437 transitions. [2022-12-14 05:00:49,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-14 05:00:49,910 INFO L276 IsEmpty]: Start isEmpty. Operand 184718 states and 259437 transitions. [2022-12-14 05:00:49,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2022-12-14 05:00:49,913 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:00:49,913 INFO L195 NwaCegarLoop]: trace histogram [38, 34, 34, 34, 34, 34, 34, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:00:49,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 05:00:49,914 INFO L420 AbstractCegarLoop]: === Iteration 17 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 05:00:49,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:00:49,914 INFO L85 PathProgramCache]: Analyzing trace with hash 920764182, now seen corresponding path program 1 times [2022-12-14 05:00:49,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:00:49,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606724386] [2022-12-14 05:00:49,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:00:49,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:00:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:00:50,058 INFO L134 CoverageAnalysis]: Checked inductivity of 4791 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4784 trivial. 0 not checked. [2022-12-14 05:00:50,058 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:00:50,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606724386] [2022-12-14 05:00:50,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606724386] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:00:50,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:00:50,059 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:00:50,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395920914] [2022-12-14 05:00:50,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:00:50,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:00:50,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:00:50,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:00:50,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:00:50,061 INFO L87 Difference]: Start difference. First operand 184718 states and 259437 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-12-14 05:01:05,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:01:05,270 INFO L93 Difference]: Finished difference Result 435342 states and 609980 transitions. [2022-12-14 05:01:05,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:01:05,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 412 [2022-12-14 05:01:05,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:01:06,268 INFO L225 Difference]: With dead ends: 435342 [2022-12-14 05:01:06,268 INFO L226 Difference]: Without dead ends: 250740 [2022-12-14 05:01:06,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:01:06,738 INFO L413 NwaCegarLoop]: 3375 mSDtfsCounter, 2276 mSDsluCounter, 2142 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2276 SdHoareTripleChecker+Valid, 5517 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 05:01:06,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2276 Valid, 5517 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 05:01:07,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250740 states. [2022-12-14 05:01:21,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250740 to 250622. [2022-12-14 05:01:21,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250622 states, 149211 states have (on average 1.2888392946900697) internal successors, (192309), 158184 states have internal predecessors, (192309), 78973 states have call successors, (78973), 22435 states have call predecessors, (78973), 22434 states have return successors, (78969), 73706 states have call predecessors, (78969), 78969 states have call successors, (78969) [2022-12-14 05:01:22,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250622 states to 250622 states and 350251 transitions. [2022-12-14 05:01:22,899 INFO L78 Accepts]: Start accepts. Automaton has 250622 states and 350251 transitions. Word has length 412 [2022-12-14 05:01:22,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:01:22,899 INFO L495 AbstractCegarLoop]: Abstraction has 250622 states and 350251 transitions. [2022-12-14 05:01:22,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2022-12-14 05:01:22,899 INFO L276 IsEmpty]: Start isEmpty. Operand 250622 states and 350251 transitions. [2022-12-14 05:01:22,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2022-12-14 05:01:22,902 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:01:22,902 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 8, 7, 7, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:01:22,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 05:01:22,903 INFO L420 AbstractCegarLoop]: === Iteration 18 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 05:01:22,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:01:22,903 INFO L85 PathProgramCache]: Analyzing trace with hash -441095120, now seen corresponding path program 1 times [2022-12-14 05:01:22,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:01:22,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919291123] [2022-12-14 05:01:22,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:01:22,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:01:22,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:01:23,333 INFO L134 CoverageAnalysis]: Checked inductivity of 4800 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4786 trivial. 0 not checked. [2022-12-14 05:01:23,334 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:01:23,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919291123] [2022-12-14 05:01:23,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919291123] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:01:23,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:01:23,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 05:01:23,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632183471] [2022-12-14 05:01:23,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:01:23,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:01:23,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:01:23,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:01:23,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:01:23,336 INFO L87 Difference]: Start difference. First operand 250622 states and 350251 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-12-14 05:01:38,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:01:38,882 INFO L93 Difference]: Finished difference Result 259950 states and 359395 transitions. [2022-12-14 05:01:38,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:01:38,883 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 418 [2022-12-14 05:01:38,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:01:39,809 INFO L225 Difference]: With dead ends: 259950 [2022-12-14 05:01:39,809 INFO L226 Difference]: Without dead ends: 259948 [2022-12-14 05:01:39,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:01:39,897 INFO L413 NwaCegarLoop]: 2191 mSDtfsCounter, 2335 mSDsluCounter, 4451 mSDsCounter, 0 mSdLazyCounter, 983 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2344 SdHoareTripleChecker+Valid, 6642 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 983 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 05:01:39,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2344 Valid, 6642 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 983 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 05:01:40,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259948 states. [2022-12-14 05:01:56,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259948 to 259946. [2022-12-14 05:01:56,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259946 states, 154512 states have (on average 1.284560422491457) internal successors, (198480), 163620 states have internal predecessors, (198480), 80458 states have call successors, (80458), 24973 states have call predecessors, (80458), 24972 states have return successors, (80454), 75191 states have call predecessors, (80454), 80454 states have call successors, (80454) [2022-12-14 05:01:57,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259946 states to 259946 states and 359392 transitions. [2022-12-14 05:01:57,641 INFO L78 Accepts]: Start accepts. Automaton has 259946 states and 359392 transitions. Word has length 418 [2022-12-14 05:01:57,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:01:57,641 INFO L495 AbstractCegarLoop]: Abstraction has 259946 states and 359392 transitions. [2022-12-14 05:01:57,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (49), 3 states have call predecessors, (49), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-12-14 05:01:57,641 INFO L276 IsEmpty]: Start isEmpty. Operand 259946 states and 359392 transitions. [2022-12-14 05:01:57,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2022-12-14 05:01:57,645 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:01:57,645 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 9, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:01:57,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 05:01:57,645 INFO L420 AbstractCegarLoop]: === Iteration 19 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 05:01:57,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:01:57,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1068949632, now seen corresponding path program 1 times [2022-12-14 05:01:57,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:01:57,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646221350] [2022-12-14 05:01:57,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:01:57,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:01:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:01:57,930 INFO L134 CoverageAnalysis]: Checked inductivity of 4840 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4824 trivial. 0 not checked. [2022-12-14 05:01:57,930 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:01:57,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646221350] [2022-12-14 05:01:57,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646221350] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:01:57,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:01:57,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 05:01:57,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943882980] [2022-12-14 05:01:57,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:01:57,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:01:57,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:01:57,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:01:57,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:01:57,933 INFO L87 Difference]: Start difference. First operand 259946 states and 359392 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-12-14 05:02:13,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:02:13,768 INFO L93 Difference]: Finished difference Result 259952 states and 359397 transitions. [2022-12-14 05:02:13,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:02:13,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 431 [2022-12-14 05:02:13,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:02:14,634 INFO L225 Difference]: With dead ends: 259952 [2022-12-14 05:02:14,634 INFO L226 Difference]: Without dead ends: 259950 [2022-12-14 05:02:14,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:02:14,723 INFO L413 NwaCegarLoop]: 2180 mSDtfsCounter, 2389 mSDsluCounter, 4336 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2397 SdHoareTripleChecker+Valid, 6516 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 05:02:14,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2397 Valid, 6516 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 05:02:14,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259950 states. [2022-12-14 05:02:31,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259950 to 259950. [2022-12-14 05:02:31,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259950 states, 154515 states have (on average 1.284554897582759) internal successors, (198483), 163623 states have internal predecessors, (198483), 80458 states have call successors, (80458), 24974 states have call predecessors, (80458), 24973 states have return successors, (80454), 75191 states have call predecessors, (80454), 80454 states have call successors, (80454) [2022-12-14 05:02:32,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259950 states to 259950 states and 359395 transitions. [2022-12-14 05:02:32,652 INFO L78 Accepts]: Start accepts. Automaton has 259950 states and 359395 transitions. Word has length 431 [2022-12-14 05:02:32,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:02:32,652 INFO L495 AbstractCegarLoop]: Abstraction has 259950 states and 359395 transitions. [2022-12-14 05:02:32,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (50), 3 states have call predecessors, (50), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-12-14 05:02:32,652 INFO L276 IsEmpty]: Start isEmpty. Operand 259950 states and 359395 transitions. [2022-12-14 05:02:32,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2022-12-14 05:02:32,656 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:02:32,656 INFO L195 NwaCegarLoop]: trace histogram [38, 34, 34, 34, 34, 34, 34, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:02:32,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 05:02:32,656 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 05:02:32,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:02:32,657 INFO L85 PathProgramCache]: Analyzing trace with hash 486346994, now seen corresponding path program 1 times [2022-12-14 05:02:32,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:02:32,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718697482] [2022-12-14 05:02:32,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:02:32,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:02:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:02:32,794 INFO L134 CoverageAnalysis]: Checked inductivity of 4790 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4783 trivial. 0 not checked. [2022-12-14 05:02:32,794 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:02:32,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718697482] [2022-12-14 05:02:32,795 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718697482] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:02:32,795 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:02:32,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:02:32,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9843364] [2022-12-14 05:02:32,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:02:32,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:02:32,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:02:32,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:02:32,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:02:32,797 INFO L87 Difference]: Start difference. First operand 259950 states and 359395 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-12-14 05:02:56,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:02:56,602 INFO L93 Difference]: Finished difference Result 600732 states and 830895 transitions. [2022-12-14 05:02:56,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:02:56,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 422 [2022-12-14 05:02:56,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:02:57,972 INFO L225 Difference]: With dead ends: 600732 [2022-12-14 05:02:57,972 INFO L226 Difference]: Without dead ends: 340898 [2022-12-14 05:02:58,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:02:58,595 INFO L413 NwaCegarLoop]: 3788 mSDtfsCounter, 2316 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2316 SdHoareTripleChecker+Valid, 5945 SdHoareTripleChecker+Invalid, 890 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:02:58,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2316 Valid, 5945 Invalid, 890 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 05:02:58,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340898 states. [2022-12-14 05:03:20,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340898 to 340808. [2022-12-14 05:03:20,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340808 states, 202784 states have (on average 1.2845638709168377) internal successors, (260489), 214639 states have internal predecessors, (260489), 105417 states have call successors, (105417), 32604 states have call predecessors, (105417), 32603 states have return successors, (105413), 98616 states have call predecessors, (105413), 105413 states have call successors, (105413) [2022-12-14 05:03:22,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340808 states to 340808 states and 471319 transitions. [2022-12-14 05:03:22,546 INFO L78 Accepts]: Start accepts. Automaton has 340808 states and 471319 transitions. Word has length 422 [2022-12-14 05:03:22,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:03:22,546 INFO L495 AbstractCegarLoop]: Abstraction has 340808 states and 471319 transitions. [2022-12-14 05:03:22,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-12-14 05:03:22,546 INFO L276 IsEmpty]: Start isEmpty. Operand 340808 states and 471319 transitions. [2022-12-14 05:03:22,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2022-12-14 05:03:22,550 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:03:22,551 INFO L195 NwaCegarLoop]: trace histogram [37, 34, 34, 34, 34, 34, 34, 10, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:03:22,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 05:03:22,551 INFO L420 AbstractCegarLoop]: === Iteration 21 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 05:03:22,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:03:22,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1623471280, now seen corresponding path program 1 times [2022-12-14 05:03:22,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:03:22,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446828486] [2022-12-14 05:03:22,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:03:22,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:03:22,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:03:22,834 INFO L134 CoverageAnalysis]: Checked inductivity of 4864 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4846 trivial. 0 not checked. [2022-12-14 05:03:22,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:03:22,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446828486] [2022-12-14 05:03:22,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446828486] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:03:22,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:03:22,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 05:03:22,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109282247] [2022-12-14 05:03:22,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:03:22,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:03:22,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:03:22,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:03:22,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:03:22,836 INFO L87 Difference]: Start difference. First operand 340808 states and 471319 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-12-14 05:03:44,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:03:44,591 INFO L93 Difference]: Finished difference Result 340814 states and 471324 transitions. [2022-12-14 05:03:44,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:03:44,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 428 [2022-12-14 05:03:44,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:03:45,813 INFO L225 Difference]: With dead ends: 340814 [2022-12-14 05:03:45,813 INFO L226 Difference]: Without dead ends: 340812 [2022-12-14 05:03:45,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:03:45,935 INFO L413 NwaCegarLoop]: 2180 mSDtfsCounter, 2389 mSDsluCounter, 4336 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2396 SdHoareTripleChecker+Valid, 6516 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 05:03:45,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2396 Valid, 6516 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 05:03:46,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340812 states. [2022-12-14 05:04:09,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340812 to 340812. [2022-12-14 05:04:09,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340812 states, 202787 states have (on average 1.2845596611222614) internal successors, (260492), 214642 states have internal predecessors, (260492), 105417 states have call successors, (105417), 32605 states have call predecessors, (105417), 32604 states have return successors, (105413), 98616 states have call predecessors, (105413), 105413 states have call successors, (105413) [2022-12-14 05:04:11,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340812 states to 340812 states and 471322 transitions. [2022-12-14 05:04:11,315 INFO L78 Accepts]: Start accepts. Automaton has 340812 states and 471322 transitions. Word has length 428 [2022-12-14 05:04:11,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:04:11,316 INFO L495 AbstractCegarLoop]: Abstraction has 340812 states and 471322 transitions. [2022-12-14 05:04:11,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (51), 3 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-12-14 05:04:11,316 INFO L276 IsEmpty]: Start isEmpty. Operand 340812 states and 471322 transitions. [2022-12-14 05:04:11,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2022-12-14 05:04:11,320 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:04:11,320 INFO L195 NwaCegarLoop]: trace histogram [40, 34, 34, 34, 34, 34, 34, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:04:11,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 05:04:11,321 INFO L420 AbstractCegarLoop]: === Iteration 22 === 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_lock_tryErr0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-12-14 05:04:11,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:04:11,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1217171381, now seen corresponding path program 1 times [2022-12-14 05:04:11,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:04:11,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744527777] [2022-12-14 05:04:11,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:04:11,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:04:11,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:04:11,944 INFO L134 CoverageAnalysis]: Checked inductivity of 4958 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4958 trivial. 0 not checked. [2022-12-14 05:04:11,944 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:04:11,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744527777] [2022-12-14 05:04:11,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744527777] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:04:11,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:04:11,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 05:04:11,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728897924] [2022-12-14 05:04:11,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:04:11,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:04:11,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:04:11,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:04:11,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:04:11,946 INFO L87 Difference]: Start difference. First operand 340812 states and 471322 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (47), 3 states have call predecessors, (47), 1 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42)