./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_1f47d376-bcc8-4c91-856f-5a713082d7f2/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f47d376-bcc8-4c91-856f-5a713082d7f2/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f47d376-bcc8-4c91-856f-5a713082d7f2/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f47d376-bcc8-4c91-856f-5a713082d7f2/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f47d376-bcc8-4c91-856f-5a713082d7f2/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f47d376-bcc8-4c91-856f-5a713082d7f2/bin/utaipan-ByfvJB40ur --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 adad89b7f673beaaf8bb114b70e1447440d8d3333aba6712cecf0b1e8decf472 --- 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-38b53e6 [2022-11-25 22:15:09,962 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:15:09,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:15:09,984 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:15:09,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:15:09,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:15:09,989 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:15:09,990 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:15:09,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:15:09,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:15:09,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:15:09,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:15:09,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:15:09,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:15:09,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:15:09,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:15:10,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:15:10,005 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:15:10,008 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:15:10,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:15:10,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:15:10,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:15:10,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:15:10,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:15:10,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:15:10,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:15:10,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:15:10,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:15:10,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:15:10,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:15:10,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:15:10,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:15:10,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:15:10,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:15:10,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:15:10,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:15:10,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:15:10,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:15:10,053 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:15:10,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:15:10,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:15:10,057 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f47d376-bcc8-4c91-856f-5a713082d7f2/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 22:15:10,100 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:15:10,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:15:10,101 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:15:10,101 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:15:10,102 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:15:10,102 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:15:10,102 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:15:10,102 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:15:10,103 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:15:10,103 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:15:10,104 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:15:10,104 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:15:10,104 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:15:10,104 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:15:10,105 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:15:10,105 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:15:10,105 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:15:10,105 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:15:10,106 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:15:10,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:15:10,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:15:10,106 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:15:10,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:15:10,107 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:15:10,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:15:10,107 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:15:10,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:15:10,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:15:10,108 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:15:10,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:15:10,108 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:15:10,109 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:15:10,109 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:15:10,109 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:15:10,109 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:15:10,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:15:10,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:15:10,110 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:15:10,110 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_1f47d376-bcc8-4c91-856f-5a713082d7f2/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f47d376-bcc8-4c91-856f-5a713082d7f2/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> adad89b7f673beaaf8bb114b70e1447440d8d3333aba6712cecf0b1e8decf472 [2022-11-25 22:15:10,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:15:10,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:15:10,454 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:15:10,456 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:15:10,456 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:15:10,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f47d376-bcc8-4c91-856f-5a713082d7f2/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i [2022-11-25 22:15:13,505 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:15:14,135 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:15:14,136 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f47d376-bcc8-4c91-856f-5a713082d7f2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i [2022-11-25 22:15:14,182 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f47d376-bcc8-4c91-856f-5a713082d7f2/bin/utaipan-ByfvJB40ur/data/bc5ccbbdd/026600fe358844ae9cb790835749209a/FLAG3977f50a6 [2022-11-25 22:15:14,203 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f47d376-bcc8-4c91-856f-5a713082d7f2/bin/utaipan-ByfvJB40ur/data/bc5ccbbdd/026600fe358844ae9cb790835749209a [2022-11-25 22:15:14,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:15:14,207 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:15:14,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:15:14,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:15:14,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:15:14,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:15:14" (1/1) ... [2022-11-25 22:15:14,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd161a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:14, skipping insertion in model container [2022-11-25 22:15:14,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:15:14" (1/1) ... [2022-11-25 22:15:14,223 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:15:14,382 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:15:15,264 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 22:15:15,389 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 22:15:15,394 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 22:15:15,413 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 22:15:15,498 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 22:15:15,524 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 22:15:15,585 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 22:15:15,586 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 22:15:15,599 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:15:15,601 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:15:15,725 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-11-25 22:15:15,828 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-11-25 22:15:15,861 WARN L623 FunctionHandler]: Unknown extern function spi_sync [2022-11-25 22:15:15,864 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 22:15:15,875 WARN L623 FunctionHandler]: Unknown extern function spi_sync [2022-11-25 22:15:15,876 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 22:15:15,892 WARN L623 FunctionHandler]: Unknown extern function spi_sync [2022-11-25 22:15:15,893 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 22:15:15,918 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:15:15,923 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 22:15:15,924 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 22:15:15,925 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 22:15:15,925 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 22:15:15,952 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:15:15,971 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 22:15:15,978 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:15:15,980 WARN L623 FunctionHandler]: Unknown extern function spi_sync [2022-11-25 22:15:15,981 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 22:15:15,987 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:15:15,997 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:15:16,000 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:15:16,002 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 22:15:16,003 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 22:15:16,004 WARN L623 FunctionHandler]: Unknown extern function netif_rx_ni [2022-11-25 22:15:16,012 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:15:16,016 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:15:16,017 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:15:16,020 WARN L623 FunctionHandler]: Unknown extern function mii_check_link [2022-11-25 22:15:16,032 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:15:16,045 WARN L623 FunctionHandler]: Unknown extern function spi_sync [2022-11-25 22:15:16,047 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 22:15:16,055 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 22:15:16,060 WARN L623 FunctionHandler]: Unknown extern function skb_dequeue [2022-11-25 22:15:16,074 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:15:16,086 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:15:16,092 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 22:15:16,093 WARN L623 FunctionHandler]: Unknown extern function flush_work [2022-11-25 22:15:16,093 WARN L623 FunctionHandler]: Unknown extern function flush_work [2022-11-25 22:15:16,094 WARN L623 FunctionHandler]: Unknown extern function skb_dequeue [2022-11-25 22:15:16,097 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:15:16,098 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 22:15:16,114 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:15:16,128 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 22:15:16,143 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-25 22:15:16,144 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-11-25 22:15:16,147 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:15:16,159 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-11-25 22:15:16,168 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 22:15:16,169 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 22:15:16,171 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 22:15:16,184 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-11-25 22:15:16,190 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-11-25 22:15:16,197 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-11-25 22:15:16,202 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-11-25 22:15:16,237 WARN L623 FunctionHandler]: Unknown extern function eeprom_93cx6_wren [2022-11-25 22:15:16,237 WARN L623 FunctionHandler]: Unknown extern function eeprom_93cx6_read [2022-11-25 22:15:16,239 WARN L623 FunctionHandler]: Unknown extern function eeprom_93cx6_write [2022-11-25 22:15:16,240 WARN L623 FunctionHandler]: Unknown extern function eeprom_93cx6_wren [2022-11-25 22:15:16,248 WARN L623 FunctionHandler]: Unknown extern function eeprom_93cx6_multiread [2022-11-25 22:15:16,274 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-25 22:15:16,275 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 22:15:16,278 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 22:15:16,283 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 22:15:16,289 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-25 22:15:16,303 WARN L623 FunctionHandler]: Unknown extern function regulator_get_optional [2022-11-25 22:15:16,306 WARN L623 FunctionHandler]: Unknown extern function regulator_enable [2022-11-25 22:15:16,308 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:15:16,309 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 22:15:16,310 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 22:15:16,310 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 22:15:16,311 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 22:15:16,311 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 22:15:16,312 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 22:15:16,315 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:15:16,317 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:15:16,319 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:15:16,320 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:15:16,321 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 22:15:16,324 WARN L623 FunctionHandler]: Unknown extern function regulator_disable [2022-11-25 22:15:16,325 WARN L623 FunctionHandler]: Unknown extern function regulator_put [2022-11-25 22:15:16,330 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:15:16,337 WARN L623 FunctionHandler]: Unknown extern function regulator_disable [2022-11-25 22:15:16,338 WARN L623 FunctionHandler]: Unknown extern function regulator_put [2022-11-25 22:15:16,776 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 22:15:16,779 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 22:15:16,796 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 22:15:16,797 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 22:15:16,813 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 22:15:16,827 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-25 22:15:16,836 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 22:15:16,861 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 22:15:16,862 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 22:15:16,863 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 22:15:16,864 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 22:15:16,864 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 22:15:16,864 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 22:15:16,865 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 22:15:16,865 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 22:15:16,866 WARN L623 FunctionHandler]: Unknown extern function spi_register_driver [2022-11-25 22:15:16,906 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-25 22:15:16,906 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 22:15:16,914 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:15:17,093 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_1f47d376-bcc8-4c91-856f-5a713082d7f2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[295786,295799] [2022-11-25 22:15:17,099 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_1f47d376-bcc8-4c91-856f-5a713082d7f2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[295952,295965] [2022-11-25 22:15:17,100 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_1f47d376-bcc8-4c91-856f-5a713082d7f2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[296116,296129] [2022-11-25 22:15:17,101 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_1f47d376-bcc8-4c91-856f-5a713082d7f2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[296281,296294] [2022-11-25 22:15:17,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:15:17,199 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:15:17,319 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 22:15:17,320 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 22:15:17,320 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 22:15:17,321 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 22:15:17,329 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 22:15:17,331 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 22:15:17,335 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 22:15:17,336 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 22:15:17,337 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:15:17,338 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:15:17,347 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-11-25 22:15:17,349 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-11-25 22:15:17,351 WARN L623 FunctionHandler]: Unknown extern function spi_sync [2022-11-25 22:15:17,352 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 22:15:17,354 WARN L623 FunctionHandler]: Unknown extern function spi_sync [2022-11-25 22:15:17,354 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 22:15:17,358 WARN L623 FunctionHandler]: Unknown extern function spi_sync [2022-11-25 22:15:17,359 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 22:15:17,362 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:15:17,363 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 22:15:17,364 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 22:15:17,364 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 22:15:17,365 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 22:15:17,371 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:15:17,375 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 22:15:17,377 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:15:17,378 WARN L623 FunctionHandler]: Unknown extern function spi_sync [2022-11-25 22:15:17,379 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 22:15:17,384 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:15:17,389 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:15:17,391 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:15:17,392 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 22:15:17,393 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 22:15:17,393 WARN L623 FunctionHandler]: Unknown extern function netif_rx_ni [2022-11-25 22:15:17,399 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:15:17,402 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:15:17,403 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:15:17,409 WARN L623 FunctionHandler]: Unknown extern function mii_check_link [2022-11-25 22:15:17,415 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:15:17,417 WARN L623 FunctionHandler]: Unknown extern function spi_sync [2022-11-25 22:15:17,418 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 22:15:17,419 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 22:15:17,419 WARN L623 FunctionHandler]: Unknown extern function skb_dequeue [2022-11-25 22:15:17,422 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:15:17,423 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:15:17,425 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 22:15:17,425 WARN L623 FunctionHandler]: Unknown extern function flush_work [2022-11-25 22:15:17,426 WARN L623 FunctionHandler]: Unknown extern function flush_work [2022-11-25 22:15:17,426 WARN L623 FunctionHandler]: Unknown extern function skb_dequeue [2022-11-25 22:15:17,428 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:15:17,428 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 22:15:17,432 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:15:17,434 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 22:15:17,436 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-25 22:15:17,437 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-11-25 22:15:17,439 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:15:17,441 WARN L623 FunctionHandler]: Unknown extern function generic_mii_ioctl [2022-11-25 22:15:17,442 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 22:15:17,443 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 22:15:17,445 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 22:15:17,446 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-11-25 22:15:17,446 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-11-25 22:15:17,447 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-11-25 22:15:17,447 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-11-25 22:15:17,453 WARN L623 FunctionHandler]: Unknown extern function eeprom_93cx6_wren [2022-11-25 22:15:17,453 WARN L623 FunctionHandler]: Unknown extern function eeprom_93cx6_read [2022-11-25 22:15:17,457 WARN L623 FunctionHandler]: Unknown extern function eeprom_93cx6_write [2022-11-25 22:15:17,457 WARN L623 FunctionHandler]: Unknown extern function eeprom_93cx6_wren [2022-11-25 22:15:17,459 WARN L623 FunctionHandler]: Unknown extern function eeprom_93cx6_multiread [2022-11-25 22:15:17,464 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-25 22:15:17,466 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 22:15:17,466 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 22:15:17,467 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 22:15:17,468 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-25 22:15:17,470 WARN L623 FunctionHandler]: Unknown extern function regulator_get_optional [2022-11-25 22:15:17,471 WARN L623 FunctionHandler]: Unknown extern function regulator_enable [2022-11-25 22:15:17,471 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:15:17,471 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 22:15:17,472 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 22:15:17,473 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 22:15:17,473 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 22:15:17,474 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 22:15:17,474 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 22:15:17,476 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:15:17,479 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:15:17,480 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:15:17,480 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:15:17,481 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 22:15:17,482 WARN L623 FunctionHandler]: Unknown extern function regulator_disable [2022-11-25 22:15:17,483 WARN L623 FunctionHandler]: Unknown extern function regulator_put [2022-11-25 22:15:17,484 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:15:17,487 WARN L623 FunctionHandler]: Unknown extern function regulator_disable [2022-11-25 22:15:17,487 WARN L623 FunctionHandler]: Unknown extern function regulator_put [2022-11-25 22:15:17,496 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 22:15:17,497 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 22:15:17,506 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 22:15:17,507 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 22:15:17,524 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 22:15:17,586 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-25 22:15:17,597 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 22:15:17,607 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 22:15:17,609 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 22:15:17,610 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 22:15:17,610 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 22:15:17,611 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 22:15:17,611 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 22:15:17,611 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 22:15:17,612 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 22:15:17,612 WARN L623 FunctionHandler]: Unknown extern function spi_register_driver [2022-11-25 22:15:17,615 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-25 22:15:17,615 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 22:15:17,615 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:15:17,629 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_1f47d376-bcc8-4c91-856f-5a713082d7f2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[295786,295799] [2022-11-25 22:15:17,629 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_1f47d376-bcc8-4c91-856f-5a713082d7f2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[295952,295965] [2022-11-25 22:15:17,630 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_1f47d376-bcc8-4c91-856f-5a713082d7f2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[296116,296129] [2022-11-25 22:15:17,630 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_1f47d376-bcc8-4c91-856f-5a713082d7f2/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i[296281,296294] [2022-11-25 22:15:17,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:15:17,859 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:15:17,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:17 WrapperNode [2022-11-25 22:15:17,859 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:15:17,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:15:17,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:15:17,862 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:15:17,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:17" (1/1) ... [2022-11-25 22:15:17,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:17" (1/1) ... [2022-11-25 22:15:18,153 INFO L138 Inliner]: procedures = 396, calls = 1621, calls flagged for inlining = 229, calls inlined = 191, statements flattened = 4079 [2022-11-25 22:15:18,153 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:15:18,154 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:15:18,154 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:15:18,154 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:15:18,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:17" (1/1) ... [2022-11-25 22:15:18,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:17" (1/1) ... [2022-11-25 22:15:18,181 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:17" (1/1) ... [2022-11-25 22:15:18,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:17" (1/1) ... [2022-11-25 22:15:18,260 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:17" (1/1) ... [2022-11-25 22:15:18,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:17" (1/1) ... [2022-11-25 22:15:18,294 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:17" (1/1) ... [2022-11-25 22:15:18,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:17" (1/1) ... [2022-11-25 22:15:18,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:15:18,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:15:18,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:15:18,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:15:18,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:17" (1/1) ... [2022-11-25 22:15:18,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:15:18,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f47d376-bcc8-4c91-856f-5a713082d7f2/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:15:18,382 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f47d376-bcc8-4c91-856f-5a713082d7f2/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:15:18,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f47d376-bcc8-4c91-856f-5a713082d7f2/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:15:18,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 22:15:18,435 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 22:15:18,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 22:15:18,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 22:15:18,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_ks8851_driver_exit_14_2 [2022-11-25 22:15:18,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_ks8851_driver_exit_14_2 [2022-11-25 22:15:18,435 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-25 22:15:18,436 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-25 22:15:18,440 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_resume [2022-11-25 22:15:18,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_resume [2022-11-25 22:15:18,440 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-25 22:15:18,440 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-25 22:15:18,440 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-11-25 22:15:18,441 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-11-25 22:15:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-25 22:15:18,441 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_net_stop [2022-11-25 22:15:18,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_net_stop [2022-11-25 22:15:18,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-25 22:15:18,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-25 22:15:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-25 22:15:18,443 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-25 22:15:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-25 22:15:18,443 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-25 22:15:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-25 22:15:18,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-25 22:15:18,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-25 22:15:18,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-25 22:15:18,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:15:18,444 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2022-11-25 22:15:18,444 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2022-11-25 22:15:18,444 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-25 22:15:18,444 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-25 22:15:18,444 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-25 22:15:18,444 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-25 22:15:18,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 22:15:18,444 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-25 22:15:18,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-25 22:15:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 22:15:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2022-11-25 22:15:18,445 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2022-11-25 22:15:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-25 22:15:18,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-25 22:15:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:15:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2022-11-25 22:15:18,445 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2022-11-25 22:15:18,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 22:15:18,446 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 22:15:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-25 22:15:18,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-25 22:15:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_ks8851_net [2022-11-25 22:15:18,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_ks8851_net [2022-11-25 22:15:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg8 [2022-11-25 22:15:18,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg8 [2022-11-25 22:15:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:15:18,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-25 22:15:18,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-25 22:15:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-25 22:15:18,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-25 22:15:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-25 22:15:18,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-25 22:15:18,447 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-25 22:15:18,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-25 22:15:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg16 [2022-11-25 22:15:18,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg16 [2022-11-25 22:15:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:15:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-25 22:15:18,448 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-25 22:15:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_probe [2022-11-25 22:15:18,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_probe [2022-11-25 22:15:18,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-25 22:15:18,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-25 22:15:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-25 22:15:18,449 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-25 22:15:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:15:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 22:15:18,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 22:15:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-25 22:15:18,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-25 22:15:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_put [2022-11-25 22:15:18,449 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_put [2022-11-25 22:15:18,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_ks8851_net [2022-11-25 22:15:18,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_ks8851_net [2022-11-25 22:15:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-25 22:15:18,450 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-25 22:15:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-25 22:15:18,450 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-25 22:15:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_write_mac_addr [2022-11-25 22:15:18,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_write_mac_addr [2022-11-25 22:15:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-25 22:15:18,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-25 22:15:18,450 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_suspend [2022-11-25 22:15:18,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_suspend [2022-11-25 22:15:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:15:18,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:15:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-25 22:15:18,451 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-25 22:15:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-11-25 22:15:18,451 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-11-25 22:15:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 22:15:18,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 22:15:18,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 22:15:18,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 22:15:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_net_open [2022-11-25 22:15:18,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_net_open [2022-11-25 22:15:18,499 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2022-11-25 22:15:18,499 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2022-11-25 22:15:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 22:15:18,500 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 22:15:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-25 22:15:18,500 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-25 22:15:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-25 22:15:18,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-25 22:15:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-25 22:15:18,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-25 22:15:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_set_rx_mode [2022-11-25 22:15:18,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_set_rx_mode [2022-11-25 22:15:18,500 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-25 22:15:18,500 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-25 22:15:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:15:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-25 22:15:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-25 22:15:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_set_powermode [2022-11-25 22:15:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_set_powermode [2022-11-25 22:15:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-25 22:15:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-25 22:15:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:15:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 22:15:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-25 22:15:18,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-25 22:15:18,501 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-25 22:15:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-25 22:15:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-25 22:15:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-25 22:15:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-25 22:15:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-25 22:15:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-25 22:15:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-25 22:15:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-25 22:15:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-25 22:15:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-25 22:15:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-25 22:15:18,502 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-25 22:15:18,502 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-25 22:15:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rx_1msg [2022-11-25 22:15:18,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rx_1msg [2022-11-25 22:15:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_get_eeprom_len [2022-11-25 22:15:18,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_get_eeprom_len [2022-11-25 22:15:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_soft_reset [2022-11-25 22:15:18,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_soft_reset [2022-11-25 22:15:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-25 22:15:18,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-25 22:15:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:15:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 22:15:18,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 22:15:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg [2022-11-25 22:15:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg [2022-11-25 22:15:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_nway_reset [2022-11-25 22:15:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_nway_reset [2022-11-25 22:15:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2022-11-25 22:15:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2022-11-25 22:15:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_remove [2022-11-25 22:15:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_remove [2022-11-25 22:15:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-25 22:15:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-25 22:15:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-25 22:15:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-25 22:15:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_wrreg16 [2022-11-25 22:15:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_wrreg16 [2022-11-25 22:15:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-25 22:15:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-25 22:15:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:15:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-25 22:15:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-25 22:15:19,311 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:15:19,314 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:15:20,635 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 22:15:23,001 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-25 22:15:23,168 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:15:24,350 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:15:24,350 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 22:15:24,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:15:24 BoogieIcfgContainer [2022-11-25 22:15:24,357 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:15:24,361 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:15:24,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:15:24,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:15:24,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:15:14" (1/3) ... [2022-11-25 22:15:24,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40af4549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:15:24, skipping insertion in model container [2022-11-25 22:15:24,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:15:17" (2/3) ... [2022-11-25 22:15:24,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40af4549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:15:24, skipping insertion in model container [2022-11-25 22:15:24,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:15:24" (3/3) ... [2022-11-25 22:15:24,370 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-ethernet-micrel-ks8851.cil.i [2022-11-25 22:15:24,392 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:15:24,392 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-25 22:15:24,488 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:15:24,496 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;@6022f17f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:15:24,497 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-25 22:15:24,508 INFO L276 IsEmpty]: Start isEmpty. Operand has 1118 states, 674 states have (on average 1.3293768545994065) internal successors, (896), 687 states have internal predecessors, (896), 366 states have call successors, (366), 78 states have call predecessors, (366), 77 states have return successors, (357), 356 states have call predecessors, (357), 357 states have call successors, (357) [2022-11-25 22:15:24,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-11-25 22:15:24,548 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:15:24,549 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:15:24,550 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 22:15:24,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:15:24,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1225836798, now seen corresponding path program 1 times [2022-11-25 22:15:24,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:15:24,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233859499] [2022-11-25 22:15:24,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:15:24,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:15:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:15:25,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2022-11-25 22:15:25,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:15:25,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233859499] [2022-11-25 22:15:25,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233859499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:15:25,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:15:25,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:15:25,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355578479] [2022-11-25 22:15:25,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:15:25,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:15:25,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:15:25,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:15:25,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:15:25,579 INFO L87 Difference]: Start difference. First operand has 1118 states, 674 states have (on average 1.3293768545994065) internal successors, (896), 687 states have internal predecessors, (896), 366 states have call successors, (366), 78 states have call predecessors, (366), 77 states have return successors, (357), 356 states have call predecessors, (357), 357 states have call successors, (357) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-25 22:15:30,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:15:30,433 INFO L93 Difference]: Finished difference Result 3137 states and 4728 transitions. [2022-11-25 22:15:30,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:15:30,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 191 [2022-11-25 22:15:30,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:15:30,471 INFO L225 Difference]: With dead ends: 3137 [2022-11-25 22:15:30,471 INFO L226 Difference]: Without dead ends: 2036 [2022-11-25 22:15:30,493 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 [2022-11-25 22:15:30,495 INFO L413 NwaCegarLoop]: 1646 mSDtfsCounter, 1412 mSDsluCounter, 1308 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1412 SdHoareTripleChecker+Valid, 2954 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:15:30,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1412 Valid, 2954 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-25 22:15:30,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2036 states. [2022-11-25 22:15:30,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2036 to 2017. [2022-11-25 22:15:30,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2017 states, 1219 states have (on average 1.3264971287940934) internal successors, (1617), 1245 states have internal predecessors, (1617), 646 states have call successors, (646), 152 states have call predecessors, (646), 149 states have return successors, (684), 631 states have call predecessors, (684), 642 states have call successors, (684) [2022-11-25 22:15:30,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2017 states to 2017 states and 2947 transitions. [2022-11-25 22:15:30,875 INFO L78 Accepts]: Start accepts. Automaton has 2017 states and 2947 transitions. Word has length 191 [2022-11-25 22:15:30,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:15:30,877 INFO L495 AbstractCegarLoop]: Abstraction has 2017 states and 2947 transitions. [2022-11-25 22:15:30,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-25 22:15:30,877 INFO L276 IsEmpty]: Start isEmpty. Operand 2017 states and 2947 transitions. [2022-11-25 22:15:30,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2022-11-25 22:15:30,883 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:15:30,884 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 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] [2022-11-25 22:15:30,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:15:30,884 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 22:15:30,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:15:30,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1861351673, now seen corresponding path program 1 times [2022-11-25 22:15:30,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:15:30,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309425118] [2022-11-25 22:15:30,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:15:30,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:15:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:15:31,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1125 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1125 trivial. 0 not checked. [2022-11-25 22:15:31,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:15:31,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309425118] [2022-11-25 22:15:31,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309425118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:15:31,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:15:31,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:15:31,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961500804] [2022-11-25 22:15:31,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:15:31,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:15:31,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:15:31,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:15:31,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:15:31,215 INFO L87 Difference]: Start difference. First operand 2017 states and 2947 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2022-11-25 22:15:33,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:15:35,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:15:36,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:15:36,041 INFO L93 Difference]: Finished difference Result 5894 states and 8610 transitions. [2022-11-25 22:15:36,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:15:36,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 194 [2022-11-25 22:15:36,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:15:36,071 INFO L225 Difference]: With dead ends: 5894 [2022-11-25 22:15:36,071 INFO L226 Difference]: Without dead ends: 3912 [2022-11-25 22:15:36,084 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 [2022-11-25 22:15:36,086 INFO L413 NwaCegarLoop]: 1607 mSDtfsCounter, 1461 mSDsluCounter, 1255 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1461 SdHoareTripleChecker+Valid, 2862 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:15:36,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1461 Valid, 2862 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-11-25 22:15:36,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3912 states. [2022-11-25 22:15:36,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3912 to 3908. [2022-11-25 22:15:36,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3908 states, 2380 states have (on average 1.3256302521008403) internal successors, (3155), 2424 states have internal predecessors, (3155), 1230 states have call successors, (1230), 300 states have call predecessors, (1230), 295 states have return successors, (1310), 1207 states have call predecessors, (1310), 1226 states have call successors, (1310) [2022-11-25 22:15:36,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3908 states to 3908 states and 5695 transitions. [2022-11-25 22:15:36,456 INFO L78 Accepts]: Start accepts. Automaton has 3908 states and 5695 transitions. Word has length 194 [2022-11-25 22:15:36,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:15:36,457 INFO L495 AbstractCegarLoop]: Abstraction has 3908 states and 5695 transitions. [2022-11-25 22:15:36,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2022-11-25 22:15:36,458 INFO L276 IsEmpty]: Start isEmpty. Operand 3908 states and 5695 transitions. [2022-11-25 22:15:36,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-11-25 22:15:36,462 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:15:36,462 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:15:36,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:15:36,463 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 22:15:36,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:15:36,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1364391516, now seen corresponding path program 1 times [2022-11-25 22:15:36,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:15:36,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190532832] [2022-11-25 22:15:36,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:15:36,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:15:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:15:36,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2022-11-25 22:15:36,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:15:36,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190532832] [2022-11-25 22:15:36,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190532832] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:15:36,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:15:36,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:15:36,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423973857] [2022-11-25 22:15:36,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:15:36,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:15:36,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:15:36,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:15:36,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:15:36,781 INFO L87 Difference]: Start difference. First operand 3908 states and 5695 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-25 22:15:39,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:15:42,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:15:42,131 INFO L93 Difference]: Finished difference Result 11218 states and 16269 transitions. [2022-11-25 22:15:42,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:15:42,132 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 195 [2022-11-25 22:15:42,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:15:42,186 INFO L225 Difference]: With dead ends: 11218 [2022-11-25 22:15:42,186 INFO L226 Difference]: Without dead ends: 7345 [2022-11-25 22:15:42,209 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 [2022-11-25 22:15:42,214 INFO L413 NwaCegarLoop]: 1579 mSDtfsCounter, 1320 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 643 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1320 SdHoareTripleChecker+Valid, 2818 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:15:42,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1320 Valid, 2818 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 643 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-25 22:15:42,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7345 states. [2022-11-25 22:15:42,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7345 to 7320. [2022-11-25 22:15:42,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7320 states, 4424 states have (on average 1.3049276672694394) internal successors, (5773), 4518 states have internal predecessors, (5773), 2308 states have call successors, (2308), 594 states have call predecessors, (2308), 585 states have return successors, (2408), 2255 states have call predecessors, (2408), 2304 states have call successors, (2408) [2022-11-25 22:15:42,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7320 states to 7320 states and 10489 transitions. [2022-11-25 22:15:42,669 INFO L78 Accepts]: Start accepts. Automaton has 7320 states and 10489 transitions. Word has length 195 [2022-11-25 22:15:42,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:15:42,671 INFO L495 AbstractCegarLoop]: Abstraction has 7320 states and 10489 transitions. [2022-11-25 22:15:42,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-25 22:15:42,672 INFO L276 IsEmpty]: Start isEmpty. Operand 7320 states and 10489 transitions. [2022-11-25 22:15:42,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-11-25 22:15:42,678 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:15:42,678 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:15:42,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 22:15:42,678 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 22:15:42,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:15:42,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1505901550, now seen corresponding path program 1 times [2022-11-25 22:15:42,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:15:42,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943098854] [2022-11-25 22:15:42,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:15:42,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:15:42,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:15:43,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1122 trivial. 0 not checked. [2022-11-25 22:15:43,073 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:15:43,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943098854] [2022-11-25 22:15:43,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943098854] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:15:43,074 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:15:43,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:15:43,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415113356] [2022-11-25 22:15:43,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:15:43,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:15:43,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:15:43,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:15:43,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:15:43,076 INFO L87 Difference]: Start difference. First operand 7320 states and 10489 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-25 22:15:47,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:15:47,743 INFO L93 Difference]: Finished difference Result 17654 states and 25223 transitions. [2022-11-25 22:15:47,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:15:47,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 196 [2022-11-25 22:15:47,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:15:47,806 INFO L225 Difference]: With dead ends: 17654 [2022-11-25 22:15:47,806 INFO L226 Difference]: Without dead ends: 10369 [2022-11-25 22:15:47,837 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 [2022-11-25 22:15:47,840 INFO L413 NwaCegarLoop]: 1609 mSDtfsCounter, 1414 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 598 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 2875 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:15:47,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1414 Valid, 2875 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 598 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-25 22:15:47,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10369 states. [2022-11-25 22:15:48,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10369 to 10344. [2022-11-25 22:15:48,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10344 states, 6230 states have (on average 1.2906902086677368) internal successors, (8041), 6380 states have internal predecessors, (8041), 3248 states have call successors, (3248), 876 states have call predecessors, (3248), 863 states have return successors, (3392), 3155 states have call predecessors, (3392), 3244 states have call successors, (3392) [2022-11-25 22:15:48,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10344 states to 10344 states and 14681 transitions. [2022-11-25 22:15:48,648 INFO L78 Accepts]: Start accepts. Automaton has 10344 states and 14681 transitions. Word has length 196 [2022-11-25 22:15:48,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:15:48,649 INFO L495 AbstractCegarLoop]: Abstraction has 10344 states and 14681 transitions. [2022-11-25 22:15:48,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-25 22:15:48,650 INFO L276 IsEmpty]: Start isEmpty. Operand 10344 states and 14681 transitions. [2022-11-25 22:15:48,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-11-25 22:15:48,654 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:15:48,655 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 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] [2022-11-25 22:15:48,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 22:15:48,655 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 22:15:48,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:15:48,656 INFO L85 PathProgramCache]: Analyzing trace with hash 717326826, now seen corresponding path program 1 times [2022-11-25 22:15:48,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:15:48,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602293771] [2022-11-25 22:15:48,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:15:48,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:15:48,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:15:48,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1124 trivial. 0 not checked. [2022-11-25 22:15:48,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:15:48,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602293771] [2022-11-25 22:15:48,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602293771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:15:48,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:15:48,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:15:48,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170286114] [2022-11-25 22:15:48,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:15:48,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:15:48,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:15:48,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:15:48,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:15:48,925 INFO L87 Difference]: Start difference. First operand 10344 states and 14681 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-25 22:15:53,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:15:53,629 INFO L93 Difference]: Finished difference Result 27454 states and 38947 transitions. [2022-11-25 22:15:53,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:15:53,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 219 [2022-11-25 22:15:53,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:15:53,755 INFO L225 Difference]: With dead ends: 27454 [2022-11-25 22:15:53,755 INFO L226 Difference]: Without dead ends: 17145 [2022-11-25 22:15:53,802 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 [2022-11-25 22:15:53,805 INFO L413 NwaCegarLoop]: 1743 mSDtfsCounter, 1464 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 3014 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:15:53,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 3014 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-25 22:15:53,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17145 states. [2022-11-25 22:15:54,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17145 to 17114. [2022-11-25 22:15:54,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17114 states, 10344 states have (on average 1.2876063418406807) internal successors, (13319), 10606 states have internal predecessors, (13319), 5314 states have call successors, (5314), 1482 states have call predecessors, (5314), 1453 states have return successors, (5546), 5139 states have call predecessors, (5546), 5310 states have call successors, (5546) [2022-11-25 22:15:54,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17114 states to 17114 states and 24179 transitions. [2022-11-25 22:15:54,885 INFO L78 Accepts]: Start accepts. Automaton has 17114 states and 24179 transitions. Word has length 219 [2022-11-25 22:15:54,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:15:54,889 INFO L495 AbstractCegarLoop]: Abstraction has 17114 states and 24179 transitions. [2022-11-25 22:15:54,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-25 22:15:54,890 INFO L276 IsEmpty]: Start isEmpty. Operand 17114 states and 24179 transitions. [2022-11-25 22:15:54,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-25 22:15:54,894 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:15:54,894 INFO L195 NwaCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 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] [2022-11-25 22:15:54,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 22:15:54,895 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 22:15:54,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:15:54,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1463273485, now seen corresponding path program 1 times [2022-11-25 22:15:54,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:15:54,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458436615] [2022-11-25 22:15:54,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:15:54,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:15:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:15:55,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1165 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2022-11-25 22:15:55,305 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:15:55,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458436615] [2022-11-25 22:15:55,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458436615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:15:55,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:15:55,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:15:55,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826286042] [2022-11-25 22:15:55,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:15:55,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:15:55,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:15:55,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:15:55,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:15:55,308 INFO L87 Difference]: Start difference. First operand 17114 states and 24179 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-25 22:15:58,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:16:00,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:16:01,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:16:01,741 INFO L93 Difference]: Finished difference Result 43553 states and 61621 transitions. [2022-11-25 22:16:01,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:16:01,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 215 [2022-11-25 22:16:01,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:16:01,892 INFO L225 Difference]: With dead ends: 43553 [2022-11-25 22:16:01,892 INFO L226 Difference]: Without dead ends: 26474 [2022-11-25 22:16:01,957 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 [2022-11-25 22:16:01,958 INFO L413 NwaCegarLoop]: 1895 mSDtfsCounter, 1429 mSDsluCounter, 1267 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 3162 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:16:01,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 3162 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2022-11-25 22:16:01,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26474 states. [2022-11-25 22:16:03,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26474 to 26425. [2022-11-25 22:16:03,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26425 states, 16066 states have (on average 1.2873770695879496) internal successors, (20683), 16518 states have internal predecessors, (20683), 8124 states have call successors, (8124), 2279 states have call predecessors, (8124), 2232 states have return successors, (8468), 7803 states have call predecessors, (8468), 8120 states have call successors, (8468) [2022-11-25 22:16:03,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26425 states to 26425 states and 37275 transitions. [2022-11-25 22:16:03,830 INFO L78 Accepts]: Start accepts. Automaton has 26425 states and 37275 transitions. Word has length 215 [2022-11-25 22:16:03,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:16:03,831 INFO L495 AbstractCegarLoop]: Abstraction has 26425 states and 37275 transitions. [2022-11-25 22:16:03,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-25 22:16:03,832 INFO L276 IsEmpty]: Start isEmpty. Operand 26425 states and 37275 transitions. [2022-11-25 22:16:03,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-11-25 22:16:03,837 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:16:03,837 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 5, 5, 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] [2022-11-25 22:16:03,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 22:16:03,838 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 22:16:03,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:16:03,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1141548017, now seen corresponding path program 1 times [2022-11-25 22:16:03,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:16:03,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905316435] [2022-11-25 22:16:03,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:16:03,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:16:03,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:16:05,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1271 trivial. 0 not checked. [2022-11-25 22:16:05,119 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:16:05,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905316435] [2022-11-25 22:16:05,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905316435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:16:05,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:16:05,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:16:05,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023660791] [2022-11-25 22:16:05,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:16:05,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:16:05,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:16:05,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:16:05,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:16:05,123 INFO L87 Difference]: Start difference. First operand 26425 states and 37275 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-25 22:16:10,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:16:10,233 INFO L93 Difference]: Finished difference Result 26431 states and 37280 transitions. [2022-11-25 22:16:10,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:16:10,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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 239 [2022-11-25 22:16:10,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:16:10,442 INFO L225 Difference]: With dead ends: 26431 [2022-11-25 22:16:10,442 INFO L226 Difference]: Without dead ends: 26429 [2022-11-25 22:16:10,456 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 [2022-11-25 22:16:10,457 INFO L413 NwaCegarLoop]: 1289 mSDtfsCounter, 1515 mSDsluCounter, 2573 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 3862 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:16:10,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 3862 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-25 22:16:10,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26429 states. [2022-11-25 22:16:12,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26429 to 26429. [2022-11-25 22:16:12,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26429 states, 16069 states have (on average 1.287323417760906) internal successors, (20686), 16521 states have internal predecessors, (20686), 8124 states have call successors, (8124), 2280 states have call predecessors, (8124), 2233 states have return successors, (8468), 7803 states have call predecessors, (8468), 8120 states have call successors, (8468) [2022-11-25 22:16:12,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26429 states to 26429 states and 37278 transitions. [2022-11-25 22:16:12,601 INFO L78 Accepts]: Start accepts. Automaton has 26429 states and 37278 transitions. Word has length 239 [2022-11-25 22:16:12,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:16:12,604 INFO L495 AbstractCegarLoop]: Abstraction has 26429 states and 37278 transitions. [2022-11-25 22:16:12,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 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) [2022-11-25 22:16:12,604 INFO L276 IsEmpty]: Start isEmpty. Operand 26429 states and 37278 transitions. [2022-11-25 22:16:12,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-11-25 22:16:12,609 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:16:12,609 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 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] [2022-11-25 22:16:12,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 22:16:12,610 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 22:16:12,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:16:12,610 INFO L85 PathProgramCache]: Analyzing trace with hash 916100242, now seen corresponding path program 1 times [2022-11-25 22:16:12,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:16:12,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611144111] [2022-11-25 22:16:12,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:16:12,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:16:12,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:16:13,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1271 trivial. 0 not checked. [2022-11-25 22:16:13,665 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:16:13,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611144111] [2022-11-25 22:16:13,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611144111] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:16:13,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:16:13,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:16:13,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065604076] [2022-11-25 22:16:13,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:16:13,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:16:13,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:16:13,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:16:13,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:16:13,668 INFO L87 Difference]: Start difference. First operand 26429 states and 37278 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, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 22:16:19,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:16:19,919 INFO L93 Difference]: Finished difference Result 26435 states and 37283 transitions. [2022-11-25 22:16:19,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:16:19,920 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, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 244 [2022-11-25 22:16:19,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:16:20,031 INFO L225 Difference]: With dead ends: 26435 [2022-11-25 22:16:20,031 INFO L226 Difference]: Without dead ends: 26433 [2022-11-25 22:16:20,045 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 [2022-11-25 22:16:20,046 INFO L413 NwaCegarLoop]: 1292 mSDtfsCounter, 1510 mSDsluCounter, 2573 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 3865 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:16:20,046 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 3865 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-25 22:16:20,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26433 states. [2022-11-25 22:16:22,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26433 to 26433. [2022-11-25 22:16:22,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26433 states, 16072 states have (on average 1.2872697859631657) internal successors, (20689), 16524 states have internal predecessors, (20689), 8124 states have call successors, (8124), 2281 states have call predecessors, (8124), 2234 states have return successors, (8468), 7803 states have call predecessors, (8468), 8120 states have call successors, (8468) [2022-11-25 22:16:22,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26433 states to 26433 states and 37281 transitions. [2022-11-25 22:16:22,235 INFO L78 Accepts]: Start accepts. Automaton has 26433 states and 37281 transitions. Word has length 244 [2022-11-25 22:16:22,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:16:22,236 INFO L495 AbstractCegarLoop]: Abstraction has 26433 states and 37281 transitions. [2022-11-25 22:16:22,236 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, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 22:16:22,236 INFO L276 IsEmpty]: Start isEmpty. Operand 26433 states and 37281 transitions. [2022-11-25 22:16:22,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-11-25 22:16:22,241 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:16:22,241 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 5, 5, 3, 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] [2022-11-25 22:16:22,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 22:16:22,242 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 22:16:22,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:16:22,243 INFO L85 PathProgramCache]: Analyzing trace with hash 169889199, now seen corresponding path program 1 times [2022-11-25 22:16:22,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:16:22,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501745057] [2022-11-25 22:16:22,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:16:22,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:16:22,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:16:22,955 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1275 trivial. 0 not checked. [2022-11-25 22:16:22,955 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:16:22,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501745057] [2022-11-25 22:16:22,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501745057] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:16:22,955 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:16:22,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:16:22,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382887920] [2022-11-25 22:16:22,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:16:22,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:16:22,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:16:22,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:16:22,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:16:22,959 INFO L87 Difference]: Start difference. First operand 26433 states and 37281 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, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-25 22:16:26,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:16:27,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:16:31,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:16:31,076 INFO L93 Difference]: Finished difference Result 28558 states and 39474 transitions. [2022-11-25 22:16:31,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:16:31,077 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, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 249 [2022-11-25 22:16:31,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:16:31,186 INFO L225 Difference]: With dead ends: 28558 [2022-11-25 22:16:31,186 INFO L226 Difference]: Without dead ends: 28554 [2022-11-25 22:16:31,197 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 [2022-11-25 22:16:31,198 INFO L413 NwaCegarLoop]: 1316 mSDtfsCounter, 1229 mSDsluCounter, 2928 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1230 SdHoareTripleChecker+Valid, 4244 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:16:31,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1230 Valid, 4244 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2022-11-25 22:16:31,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28554 states. [2022-11-25 22:16:32,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28554 to 28554. [2022-11-25 22:16:32,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28554 states, 17191 states have (on average 1.2770635797801175) internal successors, (21954), 17642 states have internal predecessors, (21954), 8586 states have call successors, (8586), 2822 states have call predecessors, (8586), 2774 states have return successors, (8930), 8265 states have call predecessors, (8930), 8582 states have call successors, (8930) [2022-11-25 22:16:32,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28554 states to 28554 states and 39470 transitions. [2022-11-25 22:16:32,917 INFO L78 Accepts]: Start accepts. Automaton has 28554 states and 39470 transitions. Word has length 249 [2022-11-25 22:16:32,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:16:32,918 INFO L495 AbstractCegarLoop]: Abstraction has 28554 states and 39470 transitions. [2022-11-25 22:16:32,918 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, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-11-25 22:16:32,918 INFO L276 IsEmpty]: Start isEmpty. Operand 28554 states and 39470 transitions. [2022-11-25 22:16:32,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-11-25 22:16:32,924 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:16:32,924 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:16:32,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 22:16:32,925 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 22:16:32,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:16:32,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1266296098, now seen corresponding path program 1 times [2022-11-25 22:16:32,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:16:32,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265015329] [2022-11-25 22:16:32,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:16:32,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:16:32,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:16:33,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1283 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1277 trivial. 0 not checked. [2022-11-25 22:16:33,597 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:16:33,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265015329] [2022-11-25 22:16:33,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265015329] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:16:33,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:16:33,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:16:33,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906340392] [2022-11-25 22:16:33,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:16:33,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:16:33,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:16:33,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:16:33,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:16:33,599 INFO L87 Difference]: Start difference. First operand 28554 states and 39470 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, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 22:16:37,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:16:39,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:16:39,441 INFO L93 Difference]: Finished difference Result 28554 states and 39470 transitions. [2022-11-25 22:16:39,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:16:39,444 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, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 252 [2022-11-25 22:16:39,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:16:39,565 INFO L225 Difference]: With dead ends: 28554 [2022-11-25 22:16:39,566 INFO L226 Difference]: Without dead ends: 28275 [2022-11-25 22:16:39,581 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 [2022-11-25 22:16:39,582 INFO L413 NwaCegarLoop]: 1290 mSDtfsCounter, 1507 mSDsluCounter, 2572 mSDsCounter, 0 mSdLazyCounter, 849 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 3862 SdHoareTripleChecker+Invalid, 850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:16:39,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 3862 Invalid, 850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 849 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2022-11-25 22:16:39,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28275 states. [2022-11-25 22:16:41,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28275 to 28275. [2022-11-25 22:16:41,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28275 states, 17131 states have (on average 1.2724300974840932) internal successors, (21798), 17486 states have internal predecessors, (21798), 8387 states have call successors, (8387), 2785 states have call predecessors, (8387), 2755 states have return successors, (8735), 8179 states have call predecessors, (8735), 8387 states have call successors, (8735) [2022-11-25 22:16:41,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28275 states to 28275 states and 38920 transitions. [2022-11-25 22:16:41,545 INFO L78 Accepts]: Start accepts. Automaton has 28275 states and 38920 transitions. Word has length 252 [2022-11-25 22:16:41,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:16:41,546 INFO L495 AbstractCegarLoop]: Abstraction has 28275 states and 38920 transitions. [2022-11-25 22:16:41,546 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, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-25 22:16:41,546 INFO L276 IsEmpty]: Start isEmpty. Operand 28275 states and 38920 transitions. [2022-11-25 22:16:41,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2022-11-25 22:16:41,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:16:41,554 INFO L195 NwaCegarLoop]: trace histogram [22, 17, 17, 17, 17, 17, 17, 4, 4, 3, 3, 3, 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] [2022-11-25 22:16:41,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 22:16:41,554 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 22:16:41,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:16:41,555 INFO L85 PathProgramCache]: Analyzing trace with hash 690906089, now seen corresponding path program 1 times [2022-11-25 22:16:41,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:16:41,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718136038] [2022-11-25 22:16:41,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:16:41,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:16:41,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:16:41,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1312 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 1301 trivial. 0 not checked. [2022-11-25 22:16:41,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:16:41,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718136038] [2022-11-25 22:16:41,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718136038] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:16:41,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1237076857] [2022-11-25 22:16:41,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:16:41,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:16:41,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f47d376-bcc8-4c91-856f-5a713082d7f2/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:16:41,873 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f47d376-bcc8-4c91-856f-5a713082d7f2/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:16:41,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f47d376-bcc8-4c91-856f-5a713082d7f2/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:16:42,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:16:42,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 2561 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:16:42,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:16:42,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1312 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 1263 trivial. 0 not checked. [2022-11-25 22:16:42,855 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:16:42,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1237076857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:16:42,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:16:42,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-25 22:16:42,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894020240] [2022-11-25 22:16:42,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:16:42,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:16:42,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:16:42,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:16:42,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:16:42,858 INFO L87 Difference]: Start difference. First operand 28275 states and 38920 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-25 22:16:46,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:16:49,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:16:49,704 INFO L93 Difference]: Finished difference Result 69604 states and 95876 transitions. [2022-11-25 22:16:49,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:16:49,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 257 [2022-11-25 22:16:49,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:16:49,856 INFO L225 Difference]: With dead ends: 69604 [2022-11-25 22:16:49,856 INFO L226 Difference]: Without dead ends: 41486 [2022-11-25 22:16:49,947 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 258 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:16:49,948 INFO L413 NwaCegarLoop]: 1714 mSDtfsCounter, 1403 mSDsluCounter, 1224 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1403 SdHoareTripleChecker+Valid, 2938 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:16:49,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1403 Valid, 2938 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-11-25 22:16:49,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41486 states. [2022-11-25 22:16:52,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41486 to 41450. [2022-11-25 22:16:52,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41450 states, 25121 states have (on average 1.2722821543728355) internal successors, (31961), 25662 states have internal predecessors, (31961), 12263 states have call successors, (12263), 4108 states have call predecessors, (12263), 4064 states have return successors, (12775), 11939 states have call predecessors, (12775), 12263 states have call successors, (12775) [2022-11-25 22:16:52,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41450 states to 41450 states and 56999 transitions. [2022-11-25 22:16:52,389 INFO L78 Accepts]: Start accepts. Automaton has 41450 states and 56999 transitions. Word has length 257 [2022-11-25 22:16:52,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:16:52,390 INFO L495 AbstractCegarLoop]: Abstraction has 41450 states and 56999 transitions. [2022-11-25 22:16:52,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (30), 3 states have call predecessors, (30), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-11-25 22:16:52,390 INFO L276 IsEmpty]: Start isEmpty. Operand 41450 states and 56999 transitions. [2022-11-25 22:16:52,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-11-25 22:16:52,397 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:16:52,397 INFO L195 NwaCegarLoop]: trace histogram [21, 17, 17, 17, 17, 17, 17, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:16:52,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f47d376-bcc8-4c91-856f-5a713082d7f2/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:16:52,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f47d376-bcc8-4c91-856f-5a713082d7f2/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:16:52,607 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 22:16:52,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:16:52,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1003314356, now seen corresponding path program 1 times [2022-11-25 22:16:52,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:16:52,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990221905] [2022-11-25 22:16:52,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:16:52,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:16:52,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:16:52,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1268 trivial. 0 not checked. [2022-11-25 22:16:52,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:16:52,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990221905] [2022-11-25 22:16:52,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990221905] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:16:52,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:16:52,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:16:52,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729840225] [2022-11-25 22:16:52,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:16:52,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:16:52,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:16:52,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:16:52,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:16:52,898 INFO L87 Difference]: Start difference. First operand 41450 states and 56999 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-25 22:17:00,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:17:00,103 INFO L93 Difference]: Finished difference Result 102394 states and 140909 transitions. [2022-11-25 22:17:00,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:17:00,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 268 [2022-11-25 22:17:00,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:17:00,310 INFO L225 Difference]: With dead ends: 102394 [2022-11-25 22:17:00,310 INFO L226 Difference]: Without dead ends: 61101 [2022-11-25 22:17:00,417 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 [2022-11-25 22:17:00,418 INFO L413 NwaCegarLoop]: 1702 mSDtfsCounter, 1429 mSDsluCounter, 1240 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 2942 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:17:00,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 2942 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-25 22:17:00,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61101 states. [2022-11-25 22:17:04,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61101 to 61073. [2022-11-25 22:17:04,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61073 states, 37087 states have (on average 1.2718472780219483) internal successors, (47169), 37894 states have internal predecessors, (47169), 17974 states have call successors, (17974), 6074 states have call predecessors, (17974), 6010 states have return successors, (18730), 17488 states have call predecessors, (18730), 17974 states have call successors, (18730) [2022-11-25 22:17:05,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61073 states to 61073 states and 83873 transitions. [2022-11-25 22:17:05,036 INFO L78 Accepts]: Start accepts. Automaton has 61073 states and 83873 transitions. Word has length 268 [2022-11-25 22:17:05,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:17:05,036 INFO L495 AbstractCegarLoop]: Abstraction has 61073 states and 83873 transitions. [2022-11-25 22:17:05,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-25 22:17:05,037 INFO L276 IsEmpty]: Start isEmpty. Operand 61073 states and 83873 transitions. [2022-11-25 22:17:05,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-11-25 22:17:05,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:05,047 INFO L195 NwaCegarLoop]: trace histogram [23, 17, 17, 17, 17, 17, 17, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:17:05,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 22:17:05,048 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-11-25 22:17:05,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:05,048 INFO L85 PathProgramCache]: Analyzing trace with hash -780149392, now seen corresponding path program 1 times [2022-11-25 22:17:05,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:17:05,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891035037] [2022-11-25 22:17:05,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:05,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:17:05,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:05,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1380 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1360 trivial. 0 not checked. [2022-11-25 22:17:05,272 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:17:05,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891035037] [2022-11-25 22:17:05,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891035037] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:17:05,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:17:05,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:17:05,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766787102] [2022-11-25 22:17:05,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:17:05,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:17:05,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:17:05,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:17:05,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:17:05,275 INFO L87 Difference]: Start difference. First operand 61073 states and 83873 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-25 22:17:17,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:17:17,502 INFO L93 Difference]: Finished difference Result 149893 states and 205987 transitions. [2022-11-25 22:17:17,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:17:17,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 275 [2022-11-25 22:17:17,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:17:17,861 INFO L225 Difference]: With dead ends: 149893 [2022-11-25 22:17:17,861 INFO L226 Difference]: Without dead ends: 88977 [2022-11-25 22:17:18,178 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 [2022-11-25 22:17:18,178 INFO L413 NwaCegarLoop]: 2396 mSDtfsCounter, 1396 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 3631 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:17:18,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1396 Valid, 3631 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-25 22:17:18,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88977 states.