./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5f93974-a45b-4759-ac88-b9ac61a3afc6/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5f93974-a45b-4759-ac88-b9ac61a3afc6/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_f5f93974-a45b-4759-ac88-b9ac61a3afc6/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5f93974-a45b-4759-ac88-b9ac61a3afc6/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5f93974-a45b-4759-ac88-b9ac61a3afc6/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_f5f93974-a45b-4759-ac88-b9ac61a3afc6/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 3eabf9223369a4133b2add72c0b71a01ceb617c9bc4081cd5107bb51f78aed61 --- 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 15:49:03,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:49:03,071 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:49:03,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:49:03,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:49:03,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:49:03,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:49:03,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:49:03,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:49:03,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:49:03,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:49:03,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:49:03,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:49:03,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:49:03,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:49:03,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:49:03,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:49:03,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:49:03,104 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:49:03,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:49:03,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:49:03,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:49:03,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:49:03,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:49:03,114 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:49:03,114 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:49:03,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:49:03,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:49:03,116 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:49:03,117 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:49:03,117 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:49:03,118 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:49:03,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:49:03,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:49:03,120 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:49:03,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:49:03,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:49:03,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:49:03,121 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:49:03,122 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:49:03,123 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:49:03,124 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5f93974-a45b-4759-ac88-b9ac61a3afc6/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 15:49:03,146 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:49:03,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:49:03,147 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:49:03,147 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:49:03,148 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:49:03,148 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:49:03,148 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:49:03,148 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:49:03,149 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:49:03,149 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:49:03,149 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:49:03,149 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:49:03,149 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:49:03,150 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:49:03,150 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:49:03,150 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:49:03,150 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:49:03,150 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:49:03,151 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:49:03,151 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:49:03,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:49:03,152 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:49:03,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:49:03,152 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:49:03,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:49:03,152 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:49:03,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:49:03,153 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:49:03,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:49:03,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:49:03,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:49:03,153 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:49:03,154 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:49:03,154 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:49:03,154 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:49:03,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:49:03,154 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:49:03,154 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:49:03,155 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_f5f93974-a45b-4759-ac88-b9ac61a3afc6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5f93974-a45b-4759-ac88-b9ac61a3afc6/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3eabf9223369a4133b2add72c0b71a01ceb617c9bc4081cd5107bb51f78aed61 [2022-12-14 15:49:03,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:49:03,352 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:49:03,354 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:49:03,355 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:49:03,355 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:49:03,356 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5f93974-a45b-4759-ac88-b9ac61a3afc6/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i [2022-12-14 15:49:05,932 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:49:06,309 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:49:06,309 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5f93974-a45b-4759-ac88-b9ac61a3afc6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i [2022-12-14 15:49:06,335 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5f93974-a45b-4759-ac88-b9ac61a3afc6/bin/utaipan-gh47qXpMRh/data/1907ea95e/71f7eeb58978406387e74567456d20cb/FLAG3fe0229e8 [2022-12-14 15:49:06,346 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5f93974-a45b-4759-ac88-b9ac61a3afc6/bin/utaipan-gh47qXpMRh/data/1907ea95e/71f7eeb58978406387e74567456d20cb [2022-12-14 15:49:06,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:49:06,349 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:49:06,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:49:06,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:49:06,352 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:49:06,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:49:06" (1/1) ... [2022-12-14 15:49:06,353 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@315c8717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:06, skipping insertion in model container [2022-12-14 15:49:06,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:49:06" (1/1) ... [2022-12-14 15:49:06,359 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:49:06,456 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:49:07,030 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 15:49:07,038 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 15:49:07,047 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 15:49:07,055 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 15:49:07,063 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 15:49:07,201 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 15:49:07,214 WARN L623 FunctionHandler]: Unknown extern function skb_tstamp_tx [2022-12-14 15:49:07,218 WARN L623 FunctionHandler]: Unknown extern function skb_clone_tx_timestamp [2022-12-14 15:49:07,249 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 15:49:07,251 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 15:49:07,290 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 15:49:07,290 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 15:49:07,298 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 15:49:07,298 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:07,388 WARN L623 FunctionHandler]: Unknown extern function clk_prepare [2022-12-14 15:49:07,389 WARN L623 FunctionHandler]: Unknown extern function clk_enable [2022-12-14 15:49:07,389 WARN L623 FunctionHandler]: Unknown extern function clk_unprepare [2022-12-14 15:49:07,393 WARN L623 FunctionHandler]: Unknown extern function clk_disable [2022-12-14 15:49:07,393 WARN L623 FunctionHandler]: Unknown extern function clk_unprepare [2022-12-14 15:49:07,422 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-12-14 15:49:07,433 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 15:49:07,473 WARN L623 FunctionHandler]: Unknown extern function mdiobus_alloc_size [2022-12-14 15:49:07,491 WARN L623 FunctionHandler]: Unknown extern function mdiobus_read [2022-12-14 15:49:07,495 WARN L623 FunctionHandler]: Unknown extern function mdiobus_write [2022-12-14 15:49:07,559 WARN L623 FunctionHandler]: Unknown extern function iowrite32_rep [2022-12-14 15:49:07,565 WARN L623 FunctionHandler]: Unknown extern function iowrite32_rep [2022-12-14 15:49:07,572 WARN L623 FunctionHandler]: Unknown extern function ioread32_rep [2022-12-14 15:49:07,578 WARN L623 FunctionHandler]: Unknown extern function ioread32_rep [2022-12-14 15:49:07,583 WARN L623 FunctionHandler]: Unknown extern function regulator_bulk_enable [2022-12-14 15:49:07,583 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:49:07,584 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:49:07,588 WARN L623 FunctionHandler]: Unknown extern function regulator_bulk_disable [2022-12-14 15:49:07,595 WARN L623 FunctionHandler]: Unknown extern function regulator_bulk_get [2022-12-14 15:49:07,596 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:49:07,596 WARN L623 FunctionHandler]: Unknown extern function clk_get [2022-12-14 15:49:07,597 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 15:49:07,601 WARN L623 FunctionHandler]: Unknown extern function regulator_bulk_free [2022-12-14 15:49:07,601 WARN L623 FunctionHandler]: Unknown extern function clk_put [2022-12-14 15:49:07,606 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 15:49:07,611 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 15:49:07,617 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 15:49:07,645 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:07,646 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:07,665 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:07,666 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:07,675 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 15:49:07,676 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 15:49:07,702 WARN L623 FunctionHandler]: Unknown extern function phy_find_first [2022-12-14 15:49:07,703 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:49:07,703 WARN L623 FunctionHandler]: Unknown extern function phy_connect_direct [2022-12-14 15:49:07,704 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:49:07,704 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:49:07,714 WARN L623 FunctionHandler]: Unknown extern function mdiobus_register [2022-12-14 15:49:07,714 WARN L623 FunctionHandler]: Unknown extern function mdiobus_unregister [2022-12-14 15:49:07,715 WARN L623 FunctionHandler]: Unknown extern function mdiobus_free [2022-12-14 15:49:07,736 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:07,742 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-12-14 15:49:07,744 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 15:49:07,744 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 15:49:07,745 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 15:49:07,749 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 15:49:07,749 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-12-14 15:49:07,754 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 15:49:07,765 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:07,765 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:07,770 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:07,771 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:07,771 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:07,776 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:07,782 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 15:49:07,792 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:07,794 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 15:49:07,795 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 15:49:07,795 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:49:07,796 WARN L623 FunctionHandler]: Unknown extern function phy_start [2022-12-14 15:49:07,802 WARN L623 FunctionHandler]: Unknown extern function phy_stop [2022-12-14 15:49:07,809 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 15:49:07,828 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 15:49:07,832 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-12-14 15:49:07,832 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-12-14 15:49:07,837 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:49:07,842 WARN L623 FunctionHandler]: Unknown extern function phy_mii_ioctl [2022-12-14 15:49:07,847 WARN L623 FunctionHandler]: Unknown extern function phy_ethtool_gset [2022-12-14 15:49:07,851 WARN L623 FunctionHandler]: Unknown extern function phy_ethtool_sset [2022-12-14 15:49:07,855 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 15:49:07,856 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 15:49:07,856 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 15:49:07,860 WARN L623 FunctionHandler]: Unknown extern function phy_start_aneg [2022-12-14 15:49:07,882 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 15:49:07,886 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 15:49:07,920 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 15:49:07,921 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 15:49:07,921 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:07,922 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:49:07,926 WARN L623 FunctionHandler]: Unknown extern function ether_setup [2022-12-14 15:49:07,926 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 15:49:07,932 WARN L623 FunctionHandler]: Unknown extern function phy_disconnect [2022-12-14 15:49:07,932 WARN L623 FunctionHandler]: Unknown extern function mdiobus_unregister [2022-12-14 15:49:07,932 WARN L623 FunctionHandler]: Unknown extern function mdiobus_free [2022-12-14 15:49:07,933 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource_byname [2022-12-14 15:49:07,933 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-12-14 15:49:07,933 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 15:49:07,934 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 15:49:07,942 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:07,943 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource_byname [2022-12-14 15:49:07,943 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-12-14 15:49:07,943 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:07,944 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-12-14 15:49:07,944 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:07,944 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-14 15:49:07,946 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-12-14 15:49:07,952 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:49:07,953 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 15:49:07,953 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 15:49:07,962 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:08,405 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-12-14 15:49:08,406 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_ts_info [2022-12-14 15:49:08,406 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 15:49:08,408 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 15:49:08,411 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 15:49:08,415 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 15:49:08,415 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 15:49:08,421 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 15:49:08,432 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 15:49:08,441 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:08,442 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:08,442 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:08,442 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:08,443 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:08,443 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:08,444 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:08,444 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:08,444 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:08,445 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:08,445 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:08,445 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:08,445 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:08,447 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:08,447 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:08,447 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 15:49:08,448 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 15:49:08,448 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 15:49:08,448 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 15:49:08,449 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 15:49:08,450 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 15:49:08,450 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 15:49:08,450 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 15:49:08,451 WARN L623 FunctionHandler]: Unknown extern function __platform_driver_register [2022-12-14 15:49:08,451 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-12-14 15:49:08,491 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 15:49:08,491 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 15:49:08,499 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 15:49:08,964 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_f5f93974-a45b-4759-ac88-b9ac61a3afc6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[392538,392551] [2022-12-14 15:49:08,968 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_f5f93974-a45b-4759-ac88-b9ac61a3afc6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[392707,392720] [2022-12-14 15:49:08,969 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_f5f93974-a45b-4759-ac88-b9ac61a3afc6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[392874,392887] [2022-12-14 15:49:08,969 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_f5f93974-a45b-4759-ac88-b9ac61a3afc6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[393042,393055] [2022-12-14 15:49:08,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:49:09,035 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:49:09,104 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 15:49:09,104 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 15:49:09,105 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 15:49:09,105 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 15:49:09,105 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 15:49:09,108 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 15:49:09,109 WARN L623 FunctionHandler]: Unknown extern function skb_tstamp_tx [2022-12-14 15:49:09,109 WARN L623 FunctionHandler]: Unknown extern function skb_clone_tx_timestamp [2022-12-14 15:49:09,110 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 15:49:09,110 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 15:49:09,111 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 15:49:09,112 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 15:49:09,112 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 15:49:09,112 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:09,114 WARN L623 FunctionHandler]: Unknown extern function clk_prepare [2022-12-14 15:49:09,115 WARN L623 FunctionHandler]: Unknown extern function clk_enable [2022-12-14 15:49:09,115 WARN L623 FunctionHandler]: Unknown extern function clk_unprepare [2022-12-14 15:49:09,115 WARN L623 FunctionHandler]: Unknown extern function clk_disable [2022-12-14 15:49:09,115 WARN L623 FunctionHandler]: Unknown extern function clk_unprepare [2022-12-14 15:49:09,116 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-12-14 15:49:09,117 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-12-14 15:49:09,118 WARN L623 FunctionHandler]: Unknown extern function mdiobus_alloc_size [2022-12-14 15:49:09,118 WARN L623 FunctionHandler]: Unknown extern function mdiobus_read [2022-12-14 15:49:09,119 WARN L623 FunctionHandler]: Unknown extern function mdiobus_write [2022-12-14 15:49:09,132 WARN L623 FunctionHandler]: Unknown extern function iowrite32_rep [2022-12-14 15:49:09,133 WARN L623 FunctionHandler]: Unknown extern function iowrite32_rep [2022-12-14 15:49:09,134 WARN L623 FunctionHandler]: Unknown extern function ioread32_rep [2022-12-14 15:49:09,136 WARN L623 FunctionHandler]: Unknown extern function ioread32_rep [2022-12-14 15:49:09,136 WARN L623 FunctionHandler]: Unknown extern function regulator_bulk_enable [2022-12-14 15:49:09,137 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:49:09,137 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:49:09,138 WARN L623 FunctionHandler]: Unknown extern function regulator_bulk_disable [2022-12-14 15:49:09,139 WARN L623 FunctionHandler]: Unknown extern function regulator_bulk_get [2022-12-14 15:49:09,139 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:49:09,140 WARN L623 FunctionHandler]: Unknown extern function clk_get [2022-12-14 15:49:09,140 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 15:49:09,141 WARN L623 FunctionHandler]: Unknown extern function regulator_bulk_free [2022-12-14 15:49:09,141 WARN L623 FunctionHandler]: Unknown extern function clk_put [2022-12-14 15:49:09,141 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 15:49:09,142 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 15:49:09,144 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 15:49:09,147 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:09,147 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:09,153 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:09,153 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:09,158 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 15:49:09,159 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 15:49:09,166 WARN L623 FunctionHandler]: Unknown extern function phy_find_first [2022-12-14 15:49:09,166 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:49:09,167 WARN L623 FunctionHandler]: Unknown extern function phy_connect_direct [2022-12-14 15:49:09,167 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:49:09,168 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:49:09,171 WARN L623 FunctionHandler]: Unknown extern function mdiobus_register [2022-12-14 15:49:09,172 WARN L623 FunctionHandler]: Unknown extern function mdiobus_unregister [2022-12-14 15:49:09,172 WARN L623 FunctionHandler]: Unknown extern function mdiobus_free [2022-12-14 15:49:09,175 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:09,176 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-12-14 15:49:09,180 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 15:49:09,180 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 15:49:09,180 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 15:49:09,181 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 15:49:09,181 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-12-14 15:49:09,182 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 15:49:09,184 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:09,184 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:09,185 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:09,186 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:09,186 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:09,186 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:09,188 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 15:49:09,189 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:09,190 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 15:49:09,191 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 15:49:09,191 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:49:09,191 WARN L623 FunctionHandler]: Unknown extern function phy_start [2022-12-14 15:49:09,193 WARN L623 FunctionHandler]: Unknown extern function phy_stop [2022-12-14 15:49:09,197 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 15:49:09,202 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 15:49:09,214 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-12-14 15:49:09,214 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-12-14 15:49:09,215 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:49:09,216 WARN L623 FunctionHandler]: Unknown extern function phy_mii_ioctl [2022-12-14 15:49:09,217 WARN L623 FunctionHandler]: Unknown extern function phy_ethtool_gset [2022-12-14 15:49:09,217 WARN L623 FunctionHandler]: Unknown extern function phy_ethtool_sset [2022-12-14 15:49:09,218 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 15:49:09,218 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 15:49:09,219 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 15:49:09,220 WARN L623 FunctionHandler]: Unknown extern function phy_start_aneg [2022-12-14 15:49:09,222 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 15:49:09,223 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 15:49:09,228 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 15:49:09,229 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 15:49:09,229 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:09,229 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 15:49:09,231 WARN L623 FunctionHandler]: Unknown extern function ether_setup [2022-12-14 15:49:09,232 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 15:49:09,233 WARN L623 FunctionHandler]: Unknown extern function phy_disconnect [2022-12-14 15:49:09,234 WARN L623 FunctionHandler]: Unknown extern function mdiobus_unregister [2022-12-14 15:49:09,234 WARN L623 FunctionHandler]: Unknown extern function mdiobus_free [2022-12-14 15:49:09,234 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource_byname [2022-12-14 15:49:09,234 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-12-14 15:49:09,235 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 15:49:09,235 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 15:49:09,236 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:09,236 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource_byname [2022-12-14 15:49:09,236 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-12-14 15:49:09,237 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:09,237 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-12-14 15:49:09,237 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:49:09,238 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-12-14 15:49:09,239 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-12-14 15:49:09,243 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 15:49:09,243 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-12-14 15:49:09,244 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-12-14 15:49:09,245 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 15:49:09,251 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-12-14 15:49:09,252 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_ts_info [2022-12-14 15:49:09,252 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 15:49:09,253 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 15:49:09,256 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 15:49:09,258 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 15:49:09,259 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 15:49:09,262 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 15:49:09,274 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 15:49:09,281 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:09,281 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:09,282 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:09,282 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:09,282 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:09,282 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:09,283 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:09,283 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:09,284 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:09,284 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:09,284 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:09,284 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:09,285 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:09,286 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:09,286 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 15:49:09,286 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 15:49:09,286 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 15:49:09,286 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 15:49:09,287 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 15:49:09,287 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 15:49:09,287 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 15:49:09,288 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-12-14 15:49:09,288 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 15:49:09,288 WARN L623 FunctionHandler]: Unknown extern function __platform_driver_register [2022-12-14 15:49:09,288 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-12-14 15:49:09,290 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 15:49:09,290 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 15:49:09,291 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 15:49:09,305 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_f5f93974-a45b-4759-ac88-b9ac61a3afc6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[392538,392551] [2022-12-14 15:49:09,305 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_f5f93974-a45b-4759-ac88-b9ac61a3afc6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[392707,392720] [2022-12-14 15:49:09,306 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_f5f93974-a45b-4759-ac88-b9ac61a3afc6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[392874,392887] [2022-12-14 15:49:09,306 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_f5f93974-a45b-4759-ac88-b9ac61a3afc6/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i[393042,393055] [2022-12-14 15:49:09,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:49:09,494 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:49:09,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:09 WrapperNode [2022-12-14 15:49:09,495 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:49:09,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:49:09,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:49:09,495 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:49:09,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:09" (1/1) ... [2022-12-14 15:49:09,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:09" (1/1) ... [2022-12-14 15:49:09,673 INFO L138 Inliner]: procedures = 549, calls = 2141, calls flagged for inlining = 287, calls inlined = 262, statements flattened = 6537 [2022-12-14 15:49:09,674 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:49:09,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:49:09,674 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:49:09,674 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:49:09,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:09" (1/1) ... [2022-12-14 15:49:09,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:09" (1/1) ... [2022-12-14 15:49:09,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:09" (1/1) ... [2022-12-14 15:49:09,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:09" (1/1) ... [2022-12-14 15:49:09,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:09" (1/1) ... [2022-12-14 15:49:09,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:09" (1/1) ... [2022-12-14 15:49:09,842 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:09" (1/1) ... [2022-12-14 15:49:09,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:09" (1/1) ... [2022-12-14 15:49:09,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:49:09,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:49:09,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:49:09,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:49:09,885 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:09" (1/1) ... [2022-12-14 15:49:09,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:49:09,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5f93974-a45b-4759-ac88-b9ac61a3afc6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:49:09,911 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5f93974-a45b-4759-ac88-b9ac61a3afc6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:49:09,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5f93974-a45b-4759-ac88-b9ac61a3afc6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:49:09,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 15:49:09,945 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 15:49:09,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_94 [2022-12-14 15:49:09,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_94 [2022-12-14 15:49:09,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 15:49:09,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 15:49:09,945 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-12-14 15:49:09,945 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-12-14 15:49:09,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_76 [2022-12-14 15:49:09,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_76 [2022-12-14 15:49:09,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 15:49:09,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2022-12-14 15:49:09,946 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-12-14 15:49:09,946 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-12-14 15:49:09,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2022-12-14 15:49:09,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2022-12-14 15:49:09,946 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mii_read [2022-12-14 15:49:09,946 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mii_read [2022-12-14 15:49:09,946 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_resume [2022-12-14 15:49:09,946 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_resume [2022-12-14 15:49:09,946 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-14 15:49:09,946 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-14 15:49:09,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mac_lock_of_smsc911x_data [2022-12-14 15:49:09,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mac_lock_of_smsc911x_data [2022-12-14 15:49:09,946 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_drv_probe [2022-12-14 15:49:09,947 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_drv_probe [2022-12-14 15:49:09,947 INFO L130 BoogieDeclarations]: Found specification of procedure no_printk [2022-12-14 15:49:09,947 INFO L138 BoogieDeclarations]: Found implementation of procedure no_printk [2022-12-14 15:49:09,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 15:49:09,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 15:49:09,947 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-12-14 15:49:09,947 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-12-14 15:49:09,947 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-12-14 15:49:09,947 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-12-14 15:49:09,947 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-12-14 15:49:09,947 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-12-14 15:49:09,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 15:49:09,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 15:49:09,947 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-12-14 15:49:09,947 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-12-14 15:49:09,948 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_set_multicast_list [2022-12-14 15:49:09,948 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_set_multicast_list [2022-12-14 15:49:09,948 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_set_hw_mac_address [2022-12-14 15:49:09,948 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_set_hw_mac_address [2022-12-14 15:49:09,948 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write [2022-12-14 15:49:09,948 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write [2022-12-14 15:49:09,948 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-12-14 15:49:09,948 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-12-14 15:49:09,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:49:09,948 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-12-14 15:49:09,948 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-12-14 15:49:09,948 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_drv_remove [2022-12-14 15:49:09,948 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_drv_remove [2022-12-14 15:49:09,948 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_multicast_update [2022-12-14 15:49:09,948 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_multicast_update [2022-12-14 15:49:09,949 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 15:49:09,949 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 15:49:09,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_mac_lock_of_smsc911x_data [2022-12-14 15:49:09,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_mac_lock_of_smsc911x_data [2022-12-14 15:49:09,949 INFO L130 BoogieDeclarations]: Found specification of procedure clk_unprepare [2022-12-14 15:49:09,949 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_unprepare [2022-12-14 15:49:09,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 15:49:09,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-12-14 15:49:09,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-12-14 15:49:09,949 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-12-14 15:49:09,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-12-14 15:49:09,949 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_writefifo [2022-12-14 15:49:09,949 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_writefifo [2022-12-14 15:49:09,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 15:49:09,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 15:49:09,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 15:49:09,950 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_irqhandler [2022-12-14 15:49:09,950 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_irqhandler [2022-12-14 15:49:09,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 15:49:09,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 15:49:09,950 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 15:49:09,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-12-14 15:49:09,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-12-14 15:49:09,950 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_disable_resources [2022-12-14 15:49:09,950 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_disable_resources [2022-12-14 15:49:09,950 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_get_rxstatus [2022-12-14 15:49:09,950 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_get_rxstatus [2022-12-14 15:49:09,951 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_read [2022-12-14 15:49:09,951 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_read [2022-12-14 15:49:09,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 15:49:09,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2022-12-14 15:49:09,951 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_ethtool_getregslen [2022-12-14 15:49:09,951 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_ethtool_getregslen [2022-12-14 15:49:09,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 15:49:09,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-12-14 15:49:09,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-12-14 15:49:09,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-12-14 15:49:09,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-12-14 15:49:09,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-12-14 15:49:09,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-12-14 15:49:09,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-12-14 15:49:09,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-12-14 15:49:09,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:49:09,952 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-12-14 15:49:09,952 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-12-14 15:49:09,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 15:49:09,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 15:49:09,952 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-12-14 15:49:09,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-12-14 15:49:09,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 15:49:09,952 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 15:49:09,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 15:49:09,952 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 15:49:09,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 15:49:09,952 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mii_write [2022-12-14 15:49:09,953 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mii_write [2022-12-14 15:49:09,953 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mac_complete [2022-12-14 15:49:09,953 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mac_complete [2022-12-14 15:49:09,953 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2022-12-14 15:49:09,953 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2022-12-14 15:49:09,953 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-12-14 15:49:09,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-12-14 15:49:09,953 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 15:49:09,953 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 15:49:09,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-12-14 15:49:09,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-12-14 15:49:09,953 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32_rep [2022-12-14 15:49:09,953 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32_rep [2022-12-14 15:49:09,953 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-12-14 15:49:09,953 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-12-14 15:49:09,953 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource_byname [2022-12-14 15:49:09,953 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource_byname [2022-12-14 15:49:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-12-14 15:49:09,954 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-12-14 15:49:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 15:49:09,954 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 15:49:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-12-14 15:49:09,954 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-12-14 15:49:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:49:09,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:49:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-12-14 15:49:09,954 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-12-14 15:49:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-12-14 15:49:09,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-12-14 15:49:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_get_txstatus [2022-12-14 15:49:09,954 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_get_txstatus [2022-12-14 15:49:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-12-14 15:49:09,954 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-12-14 15:49:09,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_is_locked_mac_lock_of_smsc911x_data [2022-12-14 15:49:09,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_is_locked_mac_lock_of_smsc911x_data [2022-12-14 15:49:09,955 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2022-12-14 15:49:09,955 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2022-12-14 15:49:09,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 15:49:09,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 15:49:09,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 15:49:09,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 15:49:09,955 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_readfifo [2022-12-14 15:49:09,955 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_readfifo [2022-12-14 15:49:09,955 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_open [2022-12-14 15:49:09,955 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_open [2022-12-14 15:49:09,955 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2022-12-14 15:49:09,955 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2022-12-14 15:49:09,955 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_ethtool_get_eeprom_len [2022-12-14 15:49:09,955 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_ethtool_get_eeprom_len [2022-12-14 15:49:09,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 15:49:09,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2022-12-14 15:49:09,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_dev_lock_of_smsc911x_data [2022-12-14 15:49:09,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_dev_lock_of_smsc911x_data [2022-12-14 15:49:09,956 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_readfifo_shift [2022-12-14 15:49:09,956 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_readfifo_shift [2022-12-14 15:49:09,956 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_suspend [2022-12-14 15:49:09,956 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_suspend [2022-12-14 15:49:09,956 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_read_mac_address [2022-12-14 15:49:09,956 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_read_mac_address [2022-12-14 15:49:09,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_93 [2022-12-14 15:49:09,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_93 [2022-12-14 15:49:09,956 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mac_write [2022-12-14 15:49:09,956 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mac_write [2022-12-14 15:49:09,956 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read [2022-12-14 15:49:09,956 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read [2022-12-14 15:49:09,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 15:49:09,957 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 15:49:09,957 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-12-14 15:49:09,957 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-12-14 15:49:09,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-12-14 15:49:09,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-12-14 15:49:09,957 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_write [2022-12-14 15:49:09,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_write [2022-12-14 15:49:09,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:49:09,957 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-12-14 15:49:09,957 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-12-14 15:49:09,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 15:49:09,957 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_reg_write [2022-12-14 15:49:09,957 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_reg_write [2022-12-14 15:49:09,957 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_ethtool_nwayreset [2022-12-14 15:49:09,957 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_ethtool_nwayreset [2022-12-14 15:49:09,958 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_free_resources [2022-12-14 15:49:09,958 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_free_resources [2022-12-14 15:49:09,958 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_disable_irq_chip [2022-12-14 15:49:09,958 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_disable_irq_chip [2022-12-14 15:49:09,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 15:49:09,958 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_eeprom_send_cmd [2022-12-14 15:49:09,958 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_eeprom_send_cmd [2022-12-14 15:49:09,958 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 15:49:09,958 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 15:49:09,958 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_phy_adjust_link [2022-12-14 15:49:09,958 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_phy_adjust_link [2022-12-14 15:49:09,958 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_reg_read [2022-12-14 15:49:09,958 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_reg_read [2022-12-14 15:49:09,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 15:49:09,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 15:49:09,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-12-14 15:49:09,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-12-14 15:49:09,959 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_update_txcounters [2022-12-14 15:49:09,959 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_update_txcounters [2022-12-14 15:49:09,959 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_read_shift [2022-12-14 15:49:09,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_read_shift [2022-12-14 15:49:09,959 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-12-14 15:49:09,959 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-12-14 15:49:09,959 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_write_shift [2022-12-14 15:49:09,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_write_shift [2022-12-14 15:49:09,959 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-12-14 15:49:09,959 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-12-14 15:49:09,959 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 15:49:09,959 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 15:49:09,959 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-12-14 15:49:09,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-12-14 15:49:09,960 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-12-14 15:49:09,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-12-14 15:49:09,960 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_phy_enable_external [2022-12-14 15:49:09,960 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_phy_enable_external [2022-12-14 15:49:09,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 15:49:09,960 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mac_read [2022-12-14 15:49:09,960 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mac_read [2022-12-14 15:49:09,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 15:49:09,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 15:49:09,960 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-12-14 15:49:09,960 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-12-14 15:49:09,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_smsc911x_cleanup_module_14_2 [2022-12-14 15:49:09,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_smsc911x_cleanup_module_14_2 [2022-12-14 15:49:09,960 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_soft_reset [2022-12-14 15:49:09,960 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_soft_reset [2022-12-14 15:49:09,960 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_eeprom_enable_access [2022-12-14 15:49:09,961 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_eeprom_enable_access [2022-12-14 15:49:09,961 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2022-12-14 15:49:09,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2022-12-14 15:49:09,961 INFO L130 BoogieDeclarations]: Found specification of procedure spin_is_locked [2022-12-14 15:49:09,961 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_is_locked [2022-12-14 15:49:09,961 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_stop [2022-12-14 15:49:09,961 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_stop [2022-12-14 15:49:09,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 15:49:09,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 15:49:09,961 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_writefifo_shift [2022-12-14 15:49:09,961 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_writefifo_shift [2022-12-14 15:49:09,961 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-12-14 15:49:09,961 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-12-14 15:49:09,961 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-12-14 15:49:09,961 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-12-14 15:49:09,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:49:09,961 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2022-12-14 15:49:09,962 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2022-12-14 15:49:09,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 15:49:09,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 15:49:09,962 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-12-14 15:49:09,962 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-12-14 15:49:10,651 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:49:10,654 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:49:10,946 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 15:49:13,655 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 15:49:13,731 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:49:14,772 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:49:14,772 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 15:49:14,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:49:14 BoogieIcfgContainer [2022-12-14 15:49:14,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:49:14,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:49:14,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:49:14,781 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:49:14,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:49:06" (1/3) ... [2022-12-14 15:49:14,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b70698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:49:14, skipping insertion in model container [2022-12-14 15:49:14,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:49:09" (2/3) ... [2022-12-14 15:49:14,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b70698 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:49:14, skipping insertion in model container [2022-12-14 15:49:14,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:49:14" (3/3) ... [2022-12-14 15:49:14,783 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-smsc-smsc911x.cil.i [2022-12-14 15:49:14,798 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:49:14,798 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-12-14 15:49:14,879 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:49:14,884 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;@48f07398, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:49:14,884 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-12-14 15:49:14,898 INFO L276 IsEmpty]: Start isEmpty. Operand has 2145 states, 1256 states have (on average 1.3097133757961783) internal successors, (1645), 1293 states have internal predecessors, (1645), 767 states have call successors, (767), 122 states have call predecessors, (767), 121 states have return successors, (758), 749 states have call predecessors, (758), 758 states have call successors, (758) [2022-12-14 15:49:14,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-12-14 15:49:14,926 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:49:14,927 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:49:14,928 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:49:14,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:49:14,933 INFO L85 PathProgramCache]: Analyzing trace with hash -2068315593, now seen corresponding path program 1 times [2022-12-14 15:49:14,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:49:14,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716363281] [2022-12-14 15:49:14,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:49:14,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:49:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:49:15,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-12-14 15:49:15,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:49:15,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716363281] [2022-12-14 15:49:15,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716363281] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:49:15,555 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:49:15,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:49:15,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133545601] [2022-12-14 15:49:15,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:49:15,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:49:15,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:49:15,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:49:15,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:49:15,588 INFO L87 Difference]: Start difference. First operand has 2145 states, 1256 states have (on average 1.3097133757961783) internal successors, (1645), 1293 states have internal predecessors, (1645), 767 states have call successors, (767), 122 states have call predecessors, (767), 121 states have return successors, (758), 749 states have call predecessors, (758), 758 states have call successors, (758) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-12-14 15:49:17,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:49:17,274 INFO L93 Difference]: Finished difference Result 6289 states and 9935 transitions. [2022-12-14 15:49:17,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:49:17,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 213 [2022-12-14 15:49:17,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:49:17,319 INFO L225 Difference]: With dead ends: 6289 [2022-12-14 15:49:17,320 INFO L226 Difference]: Without dead ends: 4165 [2022-12-14 15:49:17,348 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 15:49:17,351 INFO L413 NwaCegarLoop]: 3664 mSDtfsCounter, 3084 mSDsluCounter, 2742 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3084 SdHoareTripleChecker+Valid, 6406 SdHoareTripleChecker+Invalid, 781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:49:17,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3084 Valid, 6406 Invalid, 781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 15:49:17,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4165 states. [2022-12-14 15:49:17,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4165 to 4137. [2022-12-14 15:49:17,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4137 states, 2433 states have (on average 1.3012741471434444) internal successors, (3166), 2513 states have internal predecessors, (3166), 1464 states have call successors, (1464), 240 states have call predecessors, (1464), 237 states have return successors, (1504), 1433 states have call predecessors, (1504), 1460 states have call successors, (1504) [2022-12-14 15:49:17,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4137 states to 4137 states and 6134 transitions. [2022-12-14 15:49:17,703 INFO L78 Accepts]: Start accepts. Automaton has 4137 states and 6134 transitions. Word has length 213 [2022-12-14 15:49:17,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:49:17,704 INFO L495 AbstractCegarLoop]: Abstraction has 4137 states and 6134 transitions. [2022-12-14 15:49:17,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-12-14 15:49:17,705 INFO L276 IsEmpty]: Start isEmpty. Operand 4137 states and 6134 transitions. [2022-12-14 15:49:17,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-12-14 15:49:17,710 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:49:17,710 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:49:17,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:49:17,711 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:49:17,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:49:17,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1207342862, now seen corresponding path program 1 times [2022-12-14 15:49:17,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:49:17,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333692579] [2022-12-14 15:49:17,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:49:17,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:49:17,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:49:17,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-12-14 15:49:17,920 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:49:17,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333692579] [2022-12-14 15:49:17,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333692579] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:49:17,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:49:17,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:49:17,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317063269] [2022-12-14 15:49:17,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:49:17,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:49:17,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:49:17,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:49:17,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:49:17,924 INFO L87 Difference]: Start difference. First operand 4137 states and 6134 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-12-14 15:49:19,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:49:19,402 INFO L93 Difference]: Finished difference Result 12245 states and 18153 transitions. [2022-12-14 15:49:19,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:49:19,402 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 211 [2022-12-14 15:49:19,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:49:19,447 INFO L225 Difference]: With dead ends: 12245 [2022-12-14 15:49:19,447 INFO L226 Difference]: Without dead ends: 8147 [2022-12-14 15:49:19,465 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 15:49:19,465 INFO L413 NwaCegarLoop]: 3445 mSDtfsCounter, 2983 mSDsluCounter, 2703 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2983 SdHoareTripleChecker+Valid, 6148 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:49:19,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2983 Valid, 6148 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 15:49:19,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8147 states. [2022-12-14 15:49:19,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8147 to 8143. [2022-12-14 15:49:19,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8143 states, 4810 states have (on average 1.3012474012474013) internal successors, (6259), 4962 states have internal predecessors, (6259), 2859 states have call successors, (2859), 476 states have call predecessors, (2859), 471 states have return successors, (2943), 2804 states have call predecessors, (2943), 2855 states have call successors, (2943) [2022-12-14 15:49:19,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8143 states to 8143 states and 12061 transitions. [2022-12-14 15:49:19,914 INFO L78 Accepts]: Start accepts. Automaton has 8143 states and 12061 transitions. Word has length 211 [2022-12-14 15:49:19,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:49:19,915 INFO L495 AbstractCegarLoop]: Abstraction has 8143 states and 12061 transitions. [2022-12-14 15:49:19,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-12-14 15:49:19,915 INFO L276 IsEmpty]: Start isEmpty. Operand 8143 states and 12061 transitions. [2022-12-14 15:49:19,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2022-12-14 15:49:19,919 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:49:19,919 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:49:19,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:49:19,920 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:49:19,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:49:19,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1580076256, now seen corresponding path program 1 times [2022-12-14 15:49:19,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:49:19,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529183378] [2022-12-14 15:49:19,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:49:19,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:49:19,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:49:20,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-12-14 15:49:20,166 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:49:20,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529183378] [2022-12-14 15:49:20,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529183378] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:49:20,166 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:49:20,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:49:20,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868877330] [2022-12-14 15:49:20,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:49:20,167 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:49:20,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:49:20,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:49:20,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:49:20,168 INFO L87 Difference]: Start difference. First operand 8143 states and 12061 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-12-14 15:49:21,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:49:21,814 INFO L93 Difference]: Finished difference Result 23487 states and 34687 transitions. [2022-12-14 15:49:21,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:49:21,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 220 [2022-12-14 15:49:21,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:49:21,882 INFO L225 Difference]: With dead ends: 23487 [2022-12-14 15:49:21,883 INFO L226 Difference]: Without dead ends: 15383 [2022-12-14 15:49:21,914 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 15:49:21,915 INFO L413 NwaCegarLoop]: 3919 mSDtfsCounter, 2755 mSDsluCounter, 2681 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2755 SdHoareTripleChecker+Valid, 6600 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:49:21,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2755 Valid, 6600 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 15:49:21,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15383 states. [2022-12-14 15:49:22,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15383 to 15349. [2022-12-14 15:49:22,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15349 states, 9022 states have (on average 1.2891819995566394) internal successors, (11631), 9316 states have internal predecessors, (11631), 5405 states have call successors, (5405), 928 states have call predecessors, (5405), 919 states have return successors, (5493), 5298 states have call predecessors, (5493), 5401 states have call successors, (5493) [2022-12-14 15:49:22,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15349 states to 15349 states and 22529 transitions. [2022-12-14 15:49:22,535 INFO L78 Accepts]: Start accepts. Automaton has 15349 states and 22529 transitions. Word has length 220 [2022-12-14 15:49:22,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:49:22,535 INFO L495 AbstractCegarLoop]: Abstraction has 15349 states and 22529 transitions. [2022-12-14 15:49:22,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-12-14 15:49:22,535 INFO L276 IsEmpty]: Start isEmpty. Operand 15349 states and 22529 transitions. [2022-12-14 15:49:22,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-12-14 15:49:22,538 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:49:22,538 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:49:22,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 15:49:22,538 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:49:22,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:49:22,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1707983021, now seen corresponding path program 1 times [2022-12-14 15:49:22,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:49:22,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430249660] [2022-12-14 15:49:22,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:49:22,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:49:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:49:22,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-12-14 15:49:22,752 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:49:22,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430249660] [2022-12-14 15:49:22,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430249660] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:49:22,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:49:22,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:49:22,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184819757] [2022-12-14 15:49:22,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:49:22,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:49:22,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:49:22,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:49:22,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:49:22,755 INFO L87 Difference]: Start difference. First operand 15349 states and 22529 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-12-14 15:49:24,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:49:24,659 INFO L93 Difference]: Finished difference Result 43519 states and 63953 transitions. [2022-12-14 15:49:24,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:49:24,660 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 219 [2022-12-14 15:49:24,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:49:24,836 INFO L225 Difference]: With dead ends: 43519 [2022-12-14 15:49:24,836 INFO L226 Difference]: Without dead ends: 28209 [2022-12-14 15:49:24,891 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 15:49:24,892 INFO L413 NwaCegarLoop]: 3501 mSDtfsCounter, 2690 mSDsluCounter, 2680 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2690 SdHoareTripleChecker+Valid, 6181 SdHoareTripleChecker+Invalid, 813 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:49:24,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2690 Valid, 6181 Invalid, 813 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 15:49:24,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28209 states. [2022-12-14 15:49:26,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28209 to 28167. [2022-12-14 15:49:26,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28167 states, 16514 states have (on average 1.2799442896935933) internal successors, (21137), 17080 states have internal predecessors, (21137), 9899 states have call successors, (9899), 1780 states have call predecessors, (9899), 1751 states have return successors, (10355), 9656 states have call predecessors, (10355), 9895 states have call successors, (10355) [2022-12-14 15:49:26,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28167 states to 28167 states and 41391 transitions. [2022-12-14 15:49:26,216 INFO L78 Accepts]: Start accepts. Automaton has 28167 states and 41391 transitions. Word has length 219 [2022-12-14 15:49:26,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:49:26,217 INFO L495 AbstractCegarLoop]: Abstraction has 28167 states and 41391 transitions. [2022-12-14 15:49:26,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-12-14 15:49:26,217 INFO L276 IsEmpty]: Start isEmpty. Operand 28167 states and 41391 transitions. [2022-12-14 15:49:26,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-12-14 15:49:26,222 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:49:26,223 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 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] [2022-12-14 15:49:26,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 15:49:26,223 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:49:26,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:49:26,224 INFO L85 PathProgramCache]: Analyzing trace with hash -181565471, now seen corresponding path program 1 times [2022-12-14 15:49:26,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:49:26,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522123590] [2022-12-14 15:49:26,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:49:26,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:49:26,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:49:26,378 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2022-12-14 15:49:26,378 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:49:26,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522123590] [2022-12-14 15:49:26,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522123590] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:49:26,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:49:26,379 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:49:26,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471446520] [2022-12-14 15:49:26,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:49:26,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:49:26,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:49:26,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:49:26,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:49:26,381 INFO L87 Difference]: Start difference. First operand 28167 states and 41391 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-12-14 15:49:28,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:49:28,681 INFO L93 Difference]: Finished difference Result 70160 states and 103036 transitions. [2022-12-14 15:49:28,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:49:28,681 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 235 [2022-12-14 15:49:28,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:49:28,862 INFO L225 Difference]: With dead ends: 70160 [2022-12-14 15:49:28,862 INFO L226 Difference]: Without dead ends: 42032 [2022-12-14 15:49:28,961 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 15:49:28,962 INFO L413 NwaCegarLoop]: 3510 mSDtfsCounter, 2997 mSDsluCounter, 2716 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2997 SdHoareTripleChecker+Valid, 6226 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:49:28,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2997 Valid, 6226 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 15:49:29,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42032 states. [2022-12-14 15:49:30,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42032 to 41990. [2022-12-14 15:49:30,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41990 states, 24602 states have (on average 1.2772945289000894) internal successors, (31424), 25478 states have internal predecessors, (31424), 14731 states have call successors, (14731), 2697 states have call predecessors, (14731), 2654 states have return successors, (15417), 14339 states have call predecessors, (15417), 14727 states have call successors, (15417) [2022-12-14 15:49:30,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41990 states to 41990 states and 61572 transitions. [2022-12-14 15:49:30,785 INFO L78 Accepts]: Start accepts. Automaton has 41990 states and 61572 transitions. Word has length 235 [2022-12-14 15:49:30,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:49:30,785 INFO L495 AbstractCegarLoop]: Abstraction has 41990 states and 61572 transitions. [2022-12-14 15:49:30,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-12-14 15:49:30,786 INFO L276 IsEmpty]: Start isEmpty. Operand 41990 states and 61572 transitions. [2022-12-14 15:49:30,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2022-12-14 15:49:30,787 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:49:30,788 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 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] [2022-12-14 15:49:30,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 15:49:30,788 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:49:30,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:49:30,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1237143232, now seen corresponding path program 1 times [2022-12-14 15:49:30,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:49:30,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426351147] [2022-12-14 15:49:30,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:49:30,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:49:30,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:49:30,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2022-12-14 15:49:30,959 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:49:30,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426351147] [2022-12-14 15:49:30,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426351147] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:49:30,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:49:30,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:49:30,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992450787] [2022-12-14 15:49:30,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:49:30,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:49:30,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:49:30,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:49:30,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:49:30,961 INFO L87 Difference]: Start difference. First operand 41990 states and 61572 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-12-14 15:49:34,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:49:34,646 INFO L93 Difference]: Finished difference Result 111485 states and 163427 transitions. [2022-12-14 15:49:34,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:49:34,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 233 [2022-12-14 15:49:34,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:49:34,886 INFO L225 Difference]: With dead ends: 111485 [2022-12-14 15:49:34,886 INFO L226 Difference]: Without dead ends: 69534 [2022-12-14 15:49:35,035 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 15:49:35,036 INFO L413 NwaCegarLoop]: 3591 mSDtfsCounter, 2998 mSDsluCounter, 2716 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2998 SdHoareTripleChecker+Valid, 6307 SdHoareTripleChecker+Invalid, 811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:49:35,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2998 Valid, 6307 Invalid, 811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 15:49:35,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69534 states. [2022-12-14 15:49:37,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69534 to 69492. [2022-12-14 15:49:37,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69492 states, 40666 states have (on average 1.274725815177298) internal successors, (51838), 42162 states have internal predecessors, (51838), 24379 states have call successors, (24379), 4515 states have call predecessors, (24379), 4444 states have return successors, (25525), 23689 states have call predecessors, (25525), 24375 states have call successors, (25525) [2022-12-14 15:49:37,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69492 states to 69492 states and 101742 transitions. [2022-12-14 15:49:37,905 INFO L78 Accepts]: Start accepts. Automaton has 69492 states and 101742 transitions. Word has length 233 [2022-12-14 15:49:37,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:49:37,905 INFO L495 AbstractCegarLoop]: Abstraction has 69492 states and 101742 transitions. [2022-12-14 15:49:37,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-12-14 15:49:37,906 INFO L276 IsEmpty]: Start isEmpty. Operand 69492 states and 101742 transitions. [2022-12-14 15:49:37,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-12-14 15:49:37,909 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:49:37,909 INFO L195 NwaCegarLoop]: trace histogram [21, 19, 19, 19, 19, 19, 19, 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] [2022-12-14 15:49:37,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 15:49:37,909 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:49:37,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:49:37,910 INFO L85 PathProgramCache]: Analyzing trace with hash -178452744, now seen corresponding path program 1 times [2022-12-14 15:49:37,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:49:37,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695752382] [2022-12-14 15:49:37,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:49:37,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:49:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:49:38,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1446 trivial. 0 not checked. [2022-12-14 15:49:38,139 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:49:38,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695752382] [2022-12-14 15:49:38,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695752382] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:49:38,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:49:38,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:49:38,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196569634] [2022-12-14 15:49:38,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:49:38,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:49:38,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:49:38,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:49:38,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:49:38,141 INFO L87 Difference]: Start difference. First operand 69492 states and 101742 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, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-12-14 15:49:42,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:49:42,760 INFO L93 Difference]: Finished difference Result 166212 states and 243327 transitions. [2022-12-14 15:49:42,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:49:42,760 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, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 239 [2022-12-14 15:49:42,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:49:43,295 INFO L225 Difference]: With dead ends: 166212 [2022-12-14 15:49:43,296 INFO L226 Difference]: Without dead ends: 96759 [2022-12-14 15:49:43,524 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 15:49:43,524 INFO L413 NwaCegarLoop]: 5213 mSDtfsCounter, 2978 mSDsluCounter, 2709 mSDsCounter, 0 mSdLazyCounter, 1122 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2978 SdHoareTripleChecker+Valid, 7922 SdHoareTripleChecker+Invalid, 1134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:49:43,525 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2978 Valid, 7922 Invalid, 1134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1122 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 15:49:43,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96759 states. [2022-12-14 15:49:46,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96759 to 96671. [2022-12-14 15:49:47,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96671 states, 57012 states have (on average 1.2753981617905001) internal successors, (72713), 59150 states have internal predecessors, (72713), 33357 states have call successors, (33357), 6416 states have call predecessors, (33357), 6299 states have return successors, (35113), 32308 states have call predecessors, (35113), 33353 states have call successors, (35113) [2022-12-14 15:49:47,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96671 states to 96671 states and 141183 transitions. [2022-12-14 15:49:47,687 INFO L78 Accepts]: Start accepts. Automaton has 96671 states and 141183 transitions. Word has length 239 [2022-12-14 15:49:47,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:49:47,687 INFO L495 AbstractCegarLoop]: Abstraction has 96671 states and 141183 transitions. [2022-12-14 15:49:47,688 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, (29), 2 states have call predecessors, (29), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-12-14 15:49:47,688 INFO L276 IsEmpty]: Start isEmpty. Operand 96671 states and 141183 transitions. [2022-12-14 15:49:47,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-12-14 15:49:47,690 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:49:47,691 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 4, 4, 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] [2022-12-14 15:49:47,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 15:49:47,691 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:49:47,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:49:47,691 INFO L85 PathProgramCache]: Analyzing trace with hash 777677051, now seen corresponding path program 1 times [2022-12-14 15:49:47,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:49:47,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931512817] [2022-12-14 15:49:47,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:49:47,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:49:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:49:48,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1559 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1559 trivial. 0 not checked. [2022-12-14 15:49:48,100 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:49:48,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931512817] [2022-12-14 15:49:48,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931512817] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:49:48,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:49:48,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:49:48,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212511910] [2022-12-14 15:49:48,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:49:48,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:49:48,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:49:48,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:49:48,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:49:48,102 INFO L87 Difference]: Start difference. First operand 96671 states and 141183 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 15:49:51,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:49:51,960 INFO L93 Difference]: Finished difference Result 96677 states and 141188 transitions. [2022-12-14 15:49:51,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:49:51,961 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 253 [2022-12-14 15:49:51,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:49:52,298 INFO L225 Difference]: With dead ends: 96677 [2022-12-14 15:49:52,298 INFO L226 Difference]: Without dead ends: 96675 [2022-12-14 15:49:52,346 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 15:49:52,347 INFO L413 NwaCegarLoop]: 2733 mSDtfsCounter, 3048 mSDsluCounter, 5452 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3060 SdHoareTripleChecker+Valid, 8185 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:49:52,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3060 Valid, 8185 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 15:49:52,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96675 states. [2022-12-14 15:49:56,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96675 to 96675. [2022-12-14 15:49:56,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96675 states, 57015 states have (on average 1.2753836709637814) internal successors, (72716), 59153 states have internal predecessors, (72716), 33357 states have call successors, (33357), 6417 states have call predecessors, (33357), 6300 states have return successors, (35113), 32308 states have call predecessors, (35113), 33353 states have call successors, (35113) [2022-12-14 15:49:56,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96675 states to 96675 states and 141186 transitions. [2022-12-14 15:49:56,787 INFO L78 Accepts]: Start accepts. Automaton has 96675 states and 141186 transitions. Word has length 253 [2022-12-14 15:49:56,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:49:56,788 INFO L495 AbstractCegarLoop]: Abstraction has 96675 states and 141186 transitions. [2022-12-14 15:49:56,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 15:49:56,788 INFO L276 IsEmpty]: Start isEmpty. Operand 96675 states and 141186 transitions. [2022-12-14 15:49:56,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-12-14 15:49:56,790 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:49:56,791 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 5, 5, 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] [2022-12-14 15:49:56,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 15:49:56,791 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:49:56,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:49:56,791 INFO L85 PathProgramCache]: Analyzing trace with hash 913387578, now seen corresponding path program 1 times [2022-12-14 15:49:56,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:49:56,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604074766] [2022-12-14 15:49:56,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:49:56,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:49:56,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:49:57,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1569 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1567 trivial. 0 not checked. [2022-12-14 15:49:57,086 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:49:57,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604074766] [2022-12-14 15:49:57,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604074766] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:49:57,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:49:57,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:49:57,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350806263] [2022-12-14 15:49:57,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:49:57,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:49:57,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:49:57,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:49:57,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:49:57,088 INFO L87 Difference]: Start difference. First operand 96675 states and 141186 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 15:50:01,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:50:01,511 INFO L93 Difference]: Finished difference Result 96681 states and 141191 transitions. [2022-12-14 15:50:01,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:50:01,512 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 262 [2022-12-14 15:50:01,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:50:01,839 INFO L225 Difference]: With dead ends: 96681 [2022-12-14 15:50:01,839 INFO L226 Difference]: Without dead ends: 96679 [2022-12-14 15:50:01,884 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 15:50:01,885 INFO L413 NwaCegarLoop]: 2736 mSDtfsCounter, 3042 mSDsluCounter, 5452 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3053 SdHoareTripleChecker+Valid, 8188 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:50:01,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3053 Valid, 8188 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 15:50:01,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96679 states. [2022-12-14 15:50:05,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96679 to 96679. [2022-12-14 15:50:05,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96679 states, 57018 states have (on average 1.2753691816619313) internal successors, (72719), 59156 states have internal predecessors, (72719), 33357 states have call successors, (33357), 6418 states have call predecessors, (33357), 6301 states have return successors, (35113), 32308 states have call predecessors, (35113), 33353 states have call successors, (35113) [2022-12-14 15:50:06,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96679 states to 96679 states and 141189 transitions. [2022-12-14 15:50:06,334 INFO L78 Accepts]: Start accepts. Automaton has 96679 states and 141189 transitions. Word has length 262 [2022-12-14 15:50:06,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:50:06,334 INFO L495 AbstractCegarLoop]: Abstraction has 96679 states and 141189 transitions. [2022-12-14 15:50:06,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 15:50:06,335 INFO L276 IsEmpty]: Start isEmpty. Operand 96679 states and 141189 transitions. [2022-12-14 15:50:06,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-12-14 15:50:06,337 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:50:06,338 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 5, 5, 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] [2022-12-14 15:50:06,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 15:50:06,338 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:50:06,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:50:06,338 INFO L85 PathProgramCache]: Analyzing trace with hash -375446082, now seen corresponding path program 1 times [2022-12-14 15:50:06,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:50:06,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171987600] [2022-12-14 15:50:06,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:50:06,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:50:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:50:06,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1574 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1570 trivial. 0 not checked. [2022-12-14 15:50:06,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:50:06,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171987600] [2022-12-14 15:50:06,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171987600] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:50:06,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:50:06,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:50:06,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937199554] [2022-12-14 15:50:06,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:50:06,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:50:06,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:50:06,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:50:06,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:50:06,637 INFO L87 Difference]: Start difference. First operand 96679 states and 141189 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 15:50:11,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:50:11,483 INFO L93 Difference]: Finished difference Result 96685 states and 141194 transitions. [2022-12-14 15:50:11,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:50:11,483 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 266 [2022-12-14 15:50:11,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:50:11,798 INFO L225 Difference]: With dead ends: 96685 [2022-12-14 15:50:11,798 INFO L226 Difference]: Without dead ends: 96683 [2022-12-14 15:50:11,840 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 15:50:11,841 INFO L413 NwaCegarLoop]: 2736 mSDtfsCounter, 3042 mSDsluCounter, 5452 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3052 SdHoareTripleChecker+Valid, 8188 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 15:50:11,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3052 Valid, 8188 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 15:50:11,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96683 states. [2022-12-14 15:50:16,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96683 to 96683. [2022-12-14 15:50:16,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96683 states, 57021 states have (on average 1.2753546938847091) internal successors, (72722), 59159 states have internal predecessors, (72722), 33357 states have call successors, (33357), 6419 states have call predecessors, (33357), 6302 states have return successors, (35113), 32308 states have call predecessors, (35113), 33353 states have call successors, (35113) [2022-12-14 15:50:16,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96683 states to 96683 states and 141192 transitions. [2022-12-14 15:50:16,674 INFO L78 Accepts]: Start accepts. Automaton has 96683 states and 141192 transitions. Word has length 266 [2022-12-14 15:50:16,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:50:16,675 INFO L495 AbstractCegarLoop]: Abstraction has 96683 states and 141192 transitions. [2022-12-14 15:50:16,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 15:50:16,675 INFO L276 IsEmpty]: Start isEmpty. Operand 96683 states and 141192 transitions. [2022-12-14 15:50:16,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-12-14 15:50:16,678 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:50:16,678 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 4, 4, 4, 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] [2022-12-14 15:50:16,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 15:50:16,678 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:50:16,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:50:16,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1394745861, now seen corresponding path program 1 times [2022-12-14 15:50:16,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:50:16,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656350947] [2022-12-14 15:50:16,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:50:16,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:50:16,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:50:16,942 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1571 trivial. 0 not checked. [2022-12-14 15:50:16,942 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:50:16,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656350947] [2022-12-14 15:50:16,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656350947] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:50:16,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:50:16,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:50:16,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179941964] [2022-12-14 15:50:16,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:50:16,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:50:16,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:50:16,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:50:16,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:50:16,944 INFO L87 Difference]: Start difference. First operand 96683 states and 141192 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 15:50:21,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:50:21,618 INFO L93 Difference]: Finished difference Result 99024 states and 143604 transitions. [2022-12-14 15:50:21,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:50:21,618 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 268 [2022-12-14 15:50:21,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:50:21,946 INFO L225 Difference]: With dead ends: 99024 [2022-12-14 15:50:21,946 INFO L226 Difference]: Without dead ends: 99022 [2022-12-14 15:50:21,983 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 15:50:21,983 INFO L413 NwaCegarLoop]: 2748 mSDtfsCounter, 2897 mSDsluCounter, 5670 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2906 SdHoareTripleChecker+Valid, 8418 SdHoareTripleChecker+Invalid, 1181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 15:50:21,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2906 Valid, 8418 Invalid, 1181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1179 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 15:50:22,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99022 states. [2022-12-14 15:50:26,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99022 to 99020. [2022-12-14 15:50:26,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99020 states, 58474 states have (on average 1.271727605431474) internal successors, (74363), 60612 states have internal predecessors, (74363), 33741 states have call successors, (33741), 6919 states have call predecessors, (33741), 6802 states have return successors, (35497), 32692 states have call predecessors, (35497), 33737 states have call successors, (35497) [2022-12-14 15:50:26,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99020 states to 99020 states and 143601 transitions. [2022-12-14 15:50:26,995 INFO L78 Accepts]: Start accepts. Automaton has 99020 states and 143601 transitions. Word has length 268 [2022-12-14 15:50:26,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:50:26,995 INFO L495 AbstractCegarLoop]: Abstraction has 99020 states and 143601 transitions. [2022-12-14 15:50:26,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 15:50:26,995 INFO L276 IsEmpty]: Start isEmpty. Operand 99020 states and 143601 transitions. [2022-12-14 15:50:26,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-12-14 15:50:26,998 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:50:26,999 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 5, 4, 4, 4, 4, 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] [2022-12-14 15:50:26,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 15:50:26,999 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:50:26,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:50:26,999 INFO L85 PathProgramCache]: Analyzing trace with hash -268556165, now seen corresponding path program 1 times [2022-12-14 15:50:26,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:50:26,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627691343] [2022-12-14 15:50:27,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:50:27,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:50:27,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:50:27,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1591 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1583 trivial. 0 not checked. [2022-12-14 15:50:27,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:50:27,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627691343] [2022-12-14 15:50:27,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627691343] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:50:27,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:50:27,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:50:27,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509636639] [2022-12-14 15:50:27,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:50:27,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:50:27,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:50:27,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:50:27,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:50:27,257 INFO L87 Difference]: Start difference. First operand 99020 states and 143601 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 15:50:32,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:50:32,291 INFO L93 Difference]: Finished difference Result 99026 states and 143606 transitions. [2022-12-14 15:50:32,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:50:32,291 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 273 [2022-12-14 15:50:32,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:50:32,594 INFO L225 Difference]: With dead ends: 99026 [2022-12-14 15:50:32,594 INFO L226 Difference]: Without dead ends: 99024 [2022-12-14 15:50:32,730 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 15:50:32,730 INFO L413 NwaCegarLoop]: 2736 mSDtfsCounter, 3043 mSDsluCounter, 5452 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3051 SdHoareTripleChecker+Valid, 8188 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 15:50:32,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3051 Valid, 8188 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 15:50:32,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99024 states. [2022-12-14 15:50:37,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99024 to 99024. [2022-12-14 15:50:37,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99024 states, 58477 states have (on average 1.2717136652017031) internal successors, (74366), 60615 states have internal predecessors, (74366), 33741 states have call successors, (33741), 6920 states have call predecessors, (33741), 6803 states have return successors, (35497), 32692 states have call predecessors, (35497), 33737 states have call successors, (35497) [2022-12-14 15:50:38,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99024 states to 99024 states and 143604 transitions. [2022-12-14 15:50:38,184 INFO L78 Accepts]: Start accepts. Automaton has 99024 states and 143604 transitions. Word has length 273 [2022-12-14 15:50:38,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:50:38,184 INFO L495 AbstractCegarLoop]: Abstraction has 99024 states and 143604 transitions. [2022-12-14 15:50:38,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (34), 3 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 15:50:38,184 INFO L276 IsEmpty]: Start isEmpty. Operand 99024 states and 143604 transitions. [2022-12-14 15:50:38,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-12-14 15:50:38,188 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:50:38,188 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 6, 5, 5, 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] [2022-12-14 15:50:38,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 15:50:38,188 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:50:38,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:50:38,189 INFO L85 PathProgramCache]: Analyzing trace with hash -2089016744, now seen corresponding path program 1 times [2022-12-14 15:50:38,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:50:38,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598293446] [2022-12-14 15:50:38,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:50:38,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:50:38,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:50:38,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1616 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1606 trivial. 0 not checked. [2022-12-14 15:50:38,447 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:50:38,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598293446] [2022-12-14 15:50:38,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598293446] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:50:38,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:50:38,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:50:38,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900406772] [2022-12-14 15:50:38,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:50:38,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:50:38,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:50:38,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:50:38,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:50:38,449 INFO L87 Difference]: Start difference. First operand 99024 states and 143604 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 15:50:44,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:50:44,014 INFO L93 Difference]: Finished difference Result 99030 states and 143609 transitions. [2022-12-14 15:50:44,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:50:44,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 281 [2022-12-14 15:50:44,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:50:44,322 INFO L225 Difference]: With dead ends: 99030 [2022-12-14 15:50:44,322 INFO L226 Difference]: Without dead ends: 99028 [2022-12-14 15:50:44,348 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 15:50:44,349 INFO L413 NwaCegarLoop]: 2736 mSDtfsCounter, 3042 mSDsluCounter, 5452 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3049 SdHoareTripleChecker+Valid, 8188 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 15:50:44,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3049 Valid, 8188 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-14 15:50:44,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99028 states. [2022-12-14 15:50:49,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99028 to 99028. [2022-12-14 15:50:49,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99028 states, 58480 states have (on average 1.2716997264021888) internal successors, (74369), 60618 states have internal predecessors, (74369), 33741 states have call successors, (33741), 6921 states have call predecessors, (33741), 6804 states have return successors, (35497), 32692 states have call predecessors, (35497), 33737 states have call successors, (35497) [2022-12-14 15:50:49,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99028 states to 99028 states and 143607 transitions. [2022-12-14 15:50:49,965 INFO L78 Accepts]: Start accepts. Automaton has 99028 states and 143607 transitions. Word has length 281 [2022-12-14 15:50:49,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:50:49,966 INFO L495 AbstractCegarLoop]: Abstraction has 99028 states and 143607 transitions. [2022-12-14 15:50:49,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 15:50:49,966 INFO L276 IsEmpty]: Start isEmpty. Operand 99028 states and 143607 transitions. [2022-12-14 15:50:49,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-12-14 15:50:49,970 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:50:49,970 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 7, 6, 6, 4, 4, 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] [2022-12-14 15:50:49,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 15:50:49,971 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:50:49,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:50:49,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1013155899, now seen corresponding path program 1 times [2022-12-14 15:50:49,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:50:49,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758472495] [2022-12-14 15:50:49,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:50:49,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:50:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:50:50,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1631 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1619 trivial. 0 not checked. [2022-12-14 15:50:50,214 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:50:50,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758472495] [2022-12-14 15:50:50,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758472495] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:50:50,214 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:50:50,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:50:50,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215434316] [2022-12-14 15:50:50,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:50:50,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:50:50,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:50:50,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:50:50,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:50:50,216 INFO L87 Difference]: Start difference. First operand 99028 states and 143607 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 15:50:56,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:50:56,396 INFO L93 Difference]: Finished difference Result 99034 states and 143612 transitions. [2022-12-14 15:50:56,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:50:56,397 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 283 [2022-12-14 15:50:56,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:50:56,717 INFO L225 Difference]: With dead ends: 99034 [2022-12-14 15:50:56,717 INFO L226 Difference]: Without dead ends: 99032 [2022-12-14 15:50:56,754 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 15:50:56,755 INFO L413 NwaCegarLoop]: 2736 mSDtfsCounter, 3043 mSDsluCounter, 5452 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3049 SdHoareTripleChecker+Valid, 8188 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:50:56,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3049 Valid, 8188 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 15:50:56,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99032 states. [2022-12-14 15:51:02,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99032 to 99032. [2022-12-14 15:51:02,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99032 states, 58483 states have (on average 1.2716857890327105) internal successors, (74372), 60621 states have internal predecessors, (74372), 33741 states have call successors, (33741), 6922 states have call predecessors, (33741), 6805 states have return successors, (35497), 32692 states have call predecessors, (35497), 33737 states have call successors, (35497) [2022-12-14 15:51:02,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99032 states to 99032 states and 143610 transitions. [2022-12-14 15:51:02,827 INFO L78 Accepts]: Start accepts. Automaton has 99032 states and 143610 transitions. Word has length 283 [2022-12-14 15:51:02,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:02,828 INFO L495 AbstractCegarLoop]: Abstraction has 99032 states and 143610 transitions. [2022-12-14 15:51:02,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2022-12-14 15:51:02,828 INFO L276 IsEmpty]: Start isEmpty. Operand 99032 states and 143610 transitions. [2022-12-14 15:51:02,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-12-14 15:51:02,832 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:02,832 INFO L195 NwaCegarLoop]: trace histogram [24, 19, 19, 19, 19, 19, 19, 5, 5, 3, 3, 3, 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] [2022-12-14 15:51:02,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 15:51:02,833 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:51:02,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:02,833 INFO L85 PathProgramCache]: Analyzing trace with hash 571530689, now seen corresponding path program 1 times [2022-12-14 15:51:02,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:51:02,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421238389] [2022-12-14 15:51:02,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:02,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:51:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:02,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1620 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1608 trivial. 0 not checked. [2022-12-14 15:51:02,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:51:02,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421238389] [2022-12-14 15:51:02,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421238389] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:51:02,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:51:02,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:51:02,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111482530] [2022-12-14 15:51:02,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:51:02,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:51:02,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:51:02,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:51:02,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:51:02,990 INFO L87 Difference]: Start difference. First operand 99032 states and 143610 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-12-14 15:51:12,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:12,079 INFO L93 Difference]: Finished difference Result 239656 states and 347612 transitions. [2022-12-14 15:51:12,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:51:12,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 286 [2022-12-14 15:51:12,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:12,592 INFO L225 Difference]: With dead ends: 239656 [2022-12-14 15:51:12,592 INFO L226 Difference]: Without dead ends: 140742 [2022-12-14 15:51:12,936 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 15:51:12,936 INFO L413 NwaCegarLoop]: 5086 mSDtfsCounter, 2970 mSDsluCounter, 2710 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2970 SdHoareTripleChecker+Valid, 7796 SdHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:51:12,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2970 Valid, 7796 Invalid, 1126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 15:51:13,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140742 states. [2022-12-14 15:51:20,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140742 to 140626. [2022-12-14 15:51:21,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140626 states, 83289 states have (on average 1.2715244510079362) internal successors, (105904), 86339 states have internal predecessors, (105904), 47588 states have call successors, (47588), 9923 states have call predecessors, (47588), 9746 states have return successors, (50184), 46071 states have call predecessors, (50184), 47584 states have call successors, (50184) [2022-12-14 15:51:21,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140626 states to 140626 states and 203676 transitions. [2022-12-14 15:51:21,728 INFO L78 Accepts]: Start accepts. Automaton has 140626 states and 203676 transitions. Word has length 286 [2022-12-14 15:51:21,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:21,729 INFO L495 AbstractCegarLoop]: Abstraction has 140626 states and 203676 transitions. [2022-12-14 15:51:21,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-12-14 15:51:21,729 INFO L276 IsEmpty]: Start isEmpty. Operand 140626 states and 203676 transitions. [2022-12-14 15:51:21,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-12-14 15:51:21,732 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:21,733 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 8, 7, 7, 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] [2022-12-14 15:51:21,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 15:51:21,733 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:51:21,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:21,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1680173528, now seen corresponding path program 1 times [2022-12-14 15:51:21,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:51:21,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199398621] [2022-12-14 15:51:21,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:21,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:51:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:21,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1664 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1650 trivial. 0 not checked. [2022-12-14 15:51:21,974 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:51:21,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199398621] [2022-12-14 15:51:21,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199398621] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:51:21,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:51:21,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:51:21,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737666792] [2022-12-14 15:51:21,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:51:21,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:51:21,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:51:21,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:51:21,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:51:21,976 INFO L87 Difference]: Start difference. First operand 140626 states and 203676 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-12-14 15:51:30,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:30,233 INFO L93 Difference]: Finished difference Result 140632 states and 203681 transitions. [2022-12-14 15:51:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:51:30,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 291 [2022-12-14 15:51:30,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:30,685 INFO L225 Difference]: With dead ends: 140632 [2022-12-14 15:51:30,686 INFO L226 Difference]: Without dead ends: 140630 [2022-12-14 15:51:30,732 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 15:51:30,732 INFO L413 NwaCegarLoop]: 2736 mSDtfsCounter, 3042 mSDsluCounter, 5452 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3047 SdHoareTripleChecker+Valid, 8188 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 15:51:30,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3047 Valid, 8188 Invalid, 1161 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 15:51:30,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140630 states. [2022-12-14 15:51:39,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140630 to 140630. [2022-12-14 15:51:39,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140630 states, 83292 states have (on average 1.2715146712769534) internal successors, (105907), 86342 states have internal predecessors, (105907), 47588 states have call successors, (47588), 9924 states have call predecessors, (47588), 9747 states have return successors, (50184), 46071 states have call predecessors, (50184), 47584 states have call successors, (50184) [2022-12-14 15:51:40,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140630 states to 140630 states and 203679 transitions. [2022-12-14 15:51:40,041 INFO L78 Accepts]: Start accepts. Automaton has 140630 states and 203679 transitions. Word has length 291 [2022-12-14 15:51:40,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:51:40,042 INFO L495 AbstractCegarLoop]: Abstraction has 140630 states and 203679 transitions. [2022-12-14 15:51:40,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-12-14 15:51:40,042 INFO L276 IsEmpty]: Start isEmpty. Operand 140630 states and 203679 transitions. [2022-12-14 15:51:40,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-12-14 15:51:40,046 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:51:40,046 INFO L195 NwaCegarLoop]: trace histogram [24, 19, 19, 19, 19, 19, 19, 6, 6, 3, 3, 3, 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] [2022-12-14 15:51:40,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 15:51:40,046 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:51:40,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:51:40,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1471781931, now seen corresponding path program 1 times [2022-12-14 15:51:40,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:51:40,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609114704] [2022-12-14 15:51:40,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:51:40,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:51:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:51:40,164 INFO L134 CoverageAnalysis]: Checked inductivity of 1637 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1630 trivial. 0 not checked. [2022-12-14 15:51:40,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:51:40,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609114704] [2022-12-14 15:51:40,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609114704] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:51:40,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:51:40,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:51:40,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415207545] [2022-12-14 15:51:40,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:51:40,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:51:40,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:51:40,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:51:40,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:51:40,165 INFO L87 Difference]: Start difference. First operand 140630 states and 203679 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-14 15:51:54,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:51:54,649 INFO L93 Difference]: Finished difference Result 349724 states and 506807 transitions. [2022-12-14 15:51:54,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:51:54,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 291 [2022-12-14 15:51:54,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:51:55,636 INFO L225 Difference]: With dead ends: 349724 [2022-12-14 15:51:55,636 INFO L226 Difference]: Without dead ends: 209212 [2022-12-14 15:51:56,145 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 15:51:56,145 INFO L413 NwaCegarLoop]: 5172 mSDtfsCounter, 2998 mSDsluCounter, 2714 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2998 SdHoareTripleChecker+Valid, 7886 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:51:56,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2998 Valid, 7886 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-14 15:51:56,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209212 states. [2022-12-14 15:52:09,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209212 to 209106. [2022-12-14 15:52:09,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209106 states, 123760 states have (on average 1.2713396897220426) internal successors, (157341), 128354 states have internal predecessors, (157341), 70868 states have call successors, (70868), 14740 states have call predecessors, (70868), 14475 states have return successors, (74764), 68569 states have call predecessors, (74764), 70864 states have call successors, (74764) [2022-12-14 15:52:10,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209106 states to 209106 states and 302973 transitions. [2022-12-14 15:52:10,661 INFO L78 Accepts]: Start accepts. Automaton has 209106 states and 302973 transitions. Word has length 291 [2022-12-14 15:52:10,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:52:10,662 INFO L495 AbstractCegarLoop]: Abstraction has 209106 states and 302973 transitions. [2022-12-14 15:52:10,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-14 15:52:10,662 INFO L276 IsEmpty]: Start isEmpty. Operand 209106 states and 302973 transitions. [2022-12-14 15:52:10,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-12-14 15:52:10,665 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:52:10,666 INFO L195 NwaCegarLoop]: trace histogram [24, 19, 19, 19, 19, 19, 19, 6, 6, 3, 3, 3, 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] [2022-12-14 15:52:10,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 15:52:10,666 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:52:10,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:52:10,666 INFO L85 PathProgramCache]: Analyzing trace with hash -97009828, now seen corresponding path program 1 times [2022-12-14 15:52:10,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:52:10,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320150299] [2022-12-14 15:52:10,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:52:10,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:52:10,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:52:10,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1637 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1630 trivial. 0 not checked. [2022-12-14 15:52:10,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:52:10,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320150299] [2022-12-14 15:52:10,787 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320150299] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:52:10,787 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:52:10,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:52:10,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595723985] [2022-12-14 15:52:10,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:52:10,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:52:10,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:52:10,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:52:10,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:52:10,788 INFO L87 Difference]: Start difference. First operand 209106 states and 302973 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-14 15:52:32,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:52:32,020 INFO L93 Difference]: Finished difference Result 519919 states and 753808 transitions. [2022-12-14 15:52:32,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:52:32,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 292 [2022-12-14 15:52:32,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:52:33,488 INFO L225 Difference]: With dead ends: 519919 [2022-12-14 15:52:33,489 INFO L226 Difference]: Without dead ends: 310931 [2022-12-14 15:52:34,626 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 15:52:34,627 INFO L413 NwaCegarLoop]: 5264 mSDtfsCounter, 2997 mSDsluCounter, 2714 mSDsCounter, 0 mSdLazyCounter, 1139 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2997 SdHoareTripleChecker+Valid, 7978 SdHoareTripleChecker+Invalid, 1143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 15:52:34,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2997 Valid, 7978 Invalid, 1143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1139 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 15:52:34,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310931 states. [2022-12-14 15:52:54,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310931 to 310825. [2022-12-14 15:52:54,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310825 states, 183836 states have (on average 1.2711220870776128) internal successors, (233678), 190744 states have internal predecessors, (233678), 105530 states have call successors, (105530), 21853 states have call predecessors, (105530), 21456 states have return successors, (111376), 102058 states have call predecessors, (111376), 105526 states have call successors, (111376) [2022-12-14 15:52:56,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310825 states to 310825 states and 450584 transitions. [2022-12-14 15:52:56,405 INFO L78 Accepts]: Start accepts. Automaton has 310825 states and 450584 transitions. Word has length 292 [2022-12-14 15:52:56,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:52:56,405 INFO L495 AbstractCegarLoop]: Abstraction has 310825 states and 450584 transitions. [2022-12-14 15:52:56,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-14 15:52:56,406 INFO L276 IsEmpty]: Start isEmpty. Operand 310825 states and 450584 transitions. [2022-12-14 15:52:56,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-12-14 15:52:56,409 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:52:56,409 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 9, 8, 8, 4, 4, 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] [2022-12-14 15:52:56,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 15:52:56,409 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:52:56,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:52:56,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1160386565, now seen corresponding path program 1 times [2022-12-14 15:52:56,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:52:56,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220125503] [2022-12-14 15:52:56,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:52:56,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:52:56,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:52:56,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1687 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1671 trivial. 0 not checked. [2022-12-14 15:52:56,651 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:52:56,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220125503] [2022-12-14 15:52:56,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220125503] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:52:56,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:52:56,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:52:56,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011646432] [2022-12-14 15:52:56,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:52:56,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:52:56,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:52:56,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:52:56,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:52:56,653 INFO L87 Difference]: Start difference. First operand 310825 states and 450584 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 15:53:17,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:53:17,571 INFO L93 Difference]: Finished difference Result 334181 states and 476457 transitions. [2022-12-14 15:53:17,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:53:17,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 293 [2022-12-14 15:53:17,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:53:18,847 INFO L225 Difference]: With dead ends: 334181 [2022-12-14 15:53:18,848 INFO L226 Difference]: Without dead ends: 334179 [2022-12-14 15:53:18,967 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 15:53:18,968 INFO L413 NwaCegarLoop]: 2768 mSDtfsCounter, 2614 mSDsluCounter, 6040 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2618 SdHoareTripleChecker+Valid, 8808 SdHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:53:18,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2618 Valid, 8808 Invalid, 1208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 15:53:19,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334179 states. [2022-12-14 15:53:40,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334179 to 334175. [2022-12-14 15:53:40,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334175 states, 197141 states have (on average 1.2623198624334866) internal successors, (248855), 204247 states have internal predecessors, (248855), 110876 states have call successors, (110876), 26552 states have call predecessors, (110876), 26155 states have return successors, (116722), 107206 states have call predecessors, (116722), 110872 states have call successors, (116722) [2022-12-14 15:53:42,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334175 states to 334175 states and 476453 transitions. [2022-12-14 15:53:42,866 INFO L78 Accepts]: Start accepts. Automaton has 334175 states and 476453 transitions. Word has length 293 [2022-12-14 15:53:42,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:53:42,867 INFO L495 AbstractCegarLoop]: Abstraction has 334175 states and 476453 transitions. [2022-12-14 15:53:42,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 15:53:42,867 INFO L276 IsEmpty]: Start isEmpty. Operand 334175 states and 476453 transitions. [2022-12-14 15:53:42,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-12-14 15:53:42,871 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:53:42,871 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 10, 9, 9, 4, 4, 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] [2022-12-14 15:53:42,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 15:53:42,872 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:53:42,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:53:42,872 INFO L85 PathProgramCache]: Analyzing trace with hash -301083333, now seen corresponding path program 1 times [2022-12-14 15:53:42,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:53:42,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973629302] [2022-12-14 15:53:42,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:53:42,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:53:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:53:43,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1721 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1703 trivial. 0 not checked. [2022-12-14 15:53:43,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:53:43,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973629302] [2022-12-14 15:53:43,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973629302] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:53:43,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:53:43,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:53:43,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183904245] [2022-12-14 15:53:43,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:53:43,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:53:43,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:53:43,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:53:43,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:53:43,269 INFO L87 Difference]: Start difference. First operand 334175 states and 476453 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-12-14 15:54:05,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:54:05,230 INFO L93 Difference]: Finished difference Result 334181 states and 476458 transitions. [2022-12-14 15:54:05,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:54:05,230 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 298 [2022-12-14 15:54:05,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:54:06,446 INFO L225 Difference]: With dead ends: 334181 [2022-12-14 15:54:06,447 INFO L226 Difference]: Without dead ends: 334179 [2022-12-14 15:54:06,568 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 15:54:06,569 INFO L413 NwaCegarLoop]: 2736 mSDtfsCounter, 3043 mSDsluCounter, 5452 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3046 SdHoareTripleChecker+Valid, 8188 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:54:06,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3046 Valid, 8188 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 15:54:06,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334179 states. [2022-12-14 15:54:29,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334179 to 334179. [2022-12-14 15:54:29,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334179 states, 197144 states have (on average 1.262315870632634) internal successors, (248858), 204250 states have internal predecessors, (248858), 110876 states have call successors, (110876), 26553 states have call predecessors, (110876), 26156 states have return successors, (116722), 107206 states have call predecessors, (116722), 110872 states have call successors, (116722) [2022-12-14 15:54:31,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334179 states to 334179 states and 476456 transitions. [2022-12-14 15:54:31,797 INFO L78 Accepts]: Start accepts. Automaton has 334179 states and 476456 transitions. Word has length 298 [2022-12-14 15:54:31,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:54:31,798 INFO L495 AbstractCegarLoop]: Abstraction has 334179 states and 476456 transitions. [2022-12-14 15:54:31,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (39), 3 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-12-14 15:54:31,798 INFO L276 IsEmpty]: Start isEmpty. Operand 334179 states and 476456 transitions. [2022-12-14 15:54:31,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-12-14 15:54:31,803 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:54:31,803 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 11, 10, 10, 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] [2022-12-14 15:54:31,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 15:54:31,803 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_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:54:31,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:54:31,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1062086078, now seen corresponding path program 1 times [2022-12-14 15:54:31,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:54:31,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046394534] [2022-12-14 15:54:31,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:54:31,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:54:31,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:54:32,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1766 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1746 trivial. 0 not checked. [2022-12-14 15:54:32,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:54:32,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046394534] [2022-12-14 15:54:32,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046394534] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:54:32,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:54:32,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:54:32,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225009918] [2022-12-14 15:54:32,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:54:32,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 15:54:32,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:54:32,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 15:54:32,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:54:32,044 INFO L87 Difference]: Start difference. First operand 334179 states and 476456 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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 15:54:55,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:54:55,153 INFO L93 Difference]: Finished difference Result 334185 states and 476461 transitions. [2022-12-14 15:54:55,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:54:55,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 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 306 [2022-12-14 15:54:55,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:54:56,368 INFO L225 Difference]: With dead ends: 334185 [2022-12-14 15:54:56,369 INFO L226 Difference]: Without dead ends: 334183 [2022-12-14 15:54:56,595 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 15:54:56,595 INFO L413 NwaCegarLoop]: 2736 mSDtfsCounter, 3042 mSDsluCounter, 5452 mSDsCounter, 0 mSdLazyCounter, 1160 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3044 SdHoareTripleChecker+Valid, 8188 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:54:56,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3044 Valid, 8188 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1160 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 15:54:56,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334183 states.