./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-can-mcp251x.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_5ee7353d-dcfd-4a96-82a0-5bd8caf4c9d9/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee7353d-dcfd-4a96-82a0-5bd8caf4c9d9/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee7353d-dcfd-4a96-82a0-5bd8caf4c9d9/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee7353d-dcfd-4a96-82a0-5bd8caf4c9d9/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee7353d-dcfd-4a96-82a0-5bd8caf4c9d9/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee7353d-dcfd-4a96-82a0-5bd8caf4c9d9/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 34736e16fed7ff8cc88604084fa777d707e75948c95ce657a43a86ad92782d71 --- 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 15:48:15,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:48:15,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:48:15,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:48:15,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:48:15,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:48:15,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:48:15,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:48:15,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:48:15,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:48:15,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:48:15,848 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:48:15,849 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:48:15,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:48:15,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:48:15,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:48:15,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:48:15,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:48:15,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:48:15,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:48:15,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:48:15,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:48:15,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:48:15,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:48:15,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:48:15,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:48:15,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:48:15,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:48:15,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:48:15,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:48:15,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:48:15,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:48:15,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:48:15,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:48:15,898 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:48:15,898 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:48:15,899 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:48:15,899 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:48:15,899 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:48:15,900 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:48:15,901 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:48:15,905 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee7353d-dcfd-4a96-82a0-5bd8caf4c9d9/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 15:48:15,958 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:48:15,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:48:15,960 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:48:15,960 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:48:15,967 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:48:15,968 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:48:15,968 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:48:15,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:48:15,969 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:48:15,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:48:15,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:48:15,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:48:15,970 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:48:15,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:48:15,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:48:15,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:48:15,971 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:48:15,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:48:15,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:48:15,972 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:48:15,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:48:15,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:48:15,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:48:15,972 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:48:15,972 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:48:15,973 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:48:15,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:48:15,973 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:48:15,973 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:48:15,973 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:48:15,973 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:48:15,974 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_5ee7353d-dcfd-4a96-82a0-5bd8caf4c9d9/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee7353d-dcfd-4a96-82a0-5bd8caf4c9d9/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34736e16fed7ff8cc88604084fa777d707e75948c95ce657a43a86ad92782d71 [2022-11-25 15:48:16,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:48:16,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:48:16,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:48:16,296 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:48:16,297 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:48:16,298 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee7353d-dcfd-4a96-82a0-5bd8caf4c9d9/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i [2022-11-25 15:48:19,361 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:48:19,995 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:48:19,996 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee7353d-dcfd-4a96-82a0-5bd8caf4c9d9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i [2022-11-25 15:48:20,054 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee7353d-dcfd-4a96-82a0-5bd8caf4c9d9/bin/uautomizer-ZsLfNo2U6R/data/188304b36/07631f1645ee46aebc508e5c2c47cb28/FLAG31e887d7b [2022-11-25 15:48:20,071 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee7353d-dcfd-4a96-82a0-5bd8caf4c9d9/bin/uautomizer-ZsLfNo2U6R/data/188304b36/07631f1645ee46aebc508e5c2c47cb28 [2022-11-25 15:48:20,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:48:20,078 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:48:20,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:48:20,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:48:20,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:48:20,085 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:48:20" (1/1) ... [2022-11-25 15:48:20,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c8f9716 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:20, skipping insertion in model container [2022-11-25 15:48:20,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:48:20" (1/1) ... [2022-11-25 15:48:20,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:48:20,250 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:48:20,931 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 15:48:21,078 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 15:48:21,091 WARN L623 FunctionHandler]: Unknown extern function devm_kmalloc [2022-11-25 15:48:21,165 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-25 15:48:21,171 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 15:48:21,174 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-25 15:48:21,207 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 15:48:21,208 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 15:48:21,217 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 15:48:21,218 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 15:48:21,287 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 15:48:21,367 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-11-25 15:48:21,396 WARN L623 FunctionHandler]: Unknown extern function spi_sync [2022-11-25 15:48:21,427 WARN L623 FunctionHandler]: Unknown extern function clk_prepare [2022-11-25 15:48:21,428 WARN L623 FunctionHandler]: Unknown extern function clk_enable [2022-11-25 15:48:21,429 WARN L623 FunctionHandler]: Unknown extern function clk_unprepare [2022-11-25 15:48:21,433 WARN L623 FunctionHandler]: Unknown extern function clk_disable [2022-11-25 15:48:21,433 WARN L623 FunctionHandler]: Unknown extern function clk_unprepare [2022-11-25 15:48:21,459 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 15:48:21,460 WARN L623 FunctionHandler]: Unknown extern function can_free_echo_skb [2022-11-25 15:48:21,467 WARN L623 FunctionHandler]: Unknown extern function spi_sync [2022-11-25 15:48:21,468 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:48:21,524 WARN L623 FunctionHandler]: Unknown extern function alloc_can_skb [2022-11-25 15:48:21,525 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:48:21,531 WARN L623 FunctionHandler]: Unknown extern function can_led_event [2022-11-25 15:48:21,537 WARN L623 FunctionHandler]: Unknown extern function netif_rx_ni [2022-11-25 15:48:21,558 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 15:48:21,569 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-25 15:48:21,570 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:48:21,578 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 15:48:21,588 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:48:21,588 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:48:21,589 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-25 15:48:21,590 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:48:21,599 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 15:48:21,604 WARN L623 FunctionHandler]: Unknown extern function regulator_enable [2022-11-25 15:48:21,605 WARN L623 FunctionHandler]: Unknown extern function regulator_disable [2022-11-25 15:48:21,610 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-11-25 15:48:21,614 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-11-25 15:48:21,615 WARN L623 FunctionHandler]: Unknown extern function destroy_workqueue [2022-11-25 15:48:21,616 WARN L623 FunctionHandler]: Unknown extern function can_led_event [2022-11-25 15:48:21,620 WARN L623 FunctionHandler]: Unknown extern function alloc_can_err_skb [2022-11-25 15:48:21,621 WARN L623 FunctionHandler]: Unknown extern function netif_rx_ni [2022-11-25 15:48:21,622 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 15:48:21,628 WARN L623 FunctionHandler]: Unknown extern function can_put_echo_skb [2022-11-25 15:48:21,634 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:48:21,635 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-25 15:48:21,650 WARN L623 FunctionHandler]: Unknown extern function can_bus_off [2022-11-25 15:48:21,651 WARN L623 FunctionHandler]: Unknown extern function can_led_event [2022-11-25 15:48:21,652 WARN L623 FunctionHandler]: Unknown extern function can_get_echo_skb [2022-11-25 15:48:21,658 WARN L623 FunctionHandler]: Unknown extern function open_candev [2022-11-25 15:48:21,658 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:48:21,660 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:48:21,661 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-11-25 15:48:21,662 WARN L623 FunctionHandler]: Unknown extern function __alloc_workqueue_key [2022-11-25 15:48:21,663 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 15:48:21,664 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 15:48:21,664 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 15:48:21,665 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 15:48:21,666 WARN L623 FunctionHandler]: Unknown extern function can_led_event [2022-11-25 15:48:21,677 WARN L623 FunctionHandler]: Unknown extern function devm_clk_get [2022-11-25 15:48:21,678 WARN L623 FunctionHandler]: Unknown extern function clk_get_rate [2022-11-25 15:48:21,679 WARN L623 FunctionHandler]: Unknown extern function alloc_candev [2022-11-25 15:48:21,682 WARN L623 FunctionHandler]: Unknown extern function spi_get_device_id [2022-11-25 15:48:21,682 WARN L623 FunctionHandler]: Unknown extern function devm_regulator_get [2022-11-25 15:48:21,683 WARN L623 FunctionHandler]: Unknown extern function devm_regulator_get [2022-11-25 15:48:21,685 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 15:48:21,690 WARN L623 FunctionHandler]: Unknown extern function spi_setup [2022-11-25 15:48:21,691 WARN L623 FunctionHandler]: Unknown extern function devm_can_led_init [2022-11-25 15:48:21,691 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 15:48:21,693 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-11-25 15:48:21,699 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-11-25 15:48:21,704 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-11-25 15:48:21,704 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 15:48:21,705 WARN L623 FunctionHandler]: Unknown extern function regulator_disable [2022-11-25 15:48:21,711 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-11-25 15:48:22,063 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 15:48:22,064 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 15:48:22,075 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 15:48:22,093 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 15:48:22,112 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 15:48:22,112 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 15:48:22,114 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 15:48:22,115 WARN L623 FunctionHandler]: Unknown extern function register_candev [2022-11-25 15:48:22,116 WARN L623 FunctionHandler]: Unknown extern function unregister_candev [2022-11-25 15:48:22,116 WARN L623 FunctionHandler]: Unknown extern function spi_register_driver [2022-11-25 15:48:22,167 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-25 15:48:22,169 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 15:48:22,178 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 15:48:22,372 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_5ee7353d-dcfd-4a96-82a0-5bd8caf4c9d9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278128,278141] [2022-11-25 15:48:22,376 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_5ee7353d-dcfd-4a96-82a0-5bd8caf4c9d9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278294,278307] [2022-11-25 15:48:22,378 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_5ee7353d-dcfd-4a96-82a0-5bd8caf4c9d9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278458,278471] [2022-11-25 15:48:22,378 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_5ee7353d-dcfd-4a96-82a0-5bd8caf4c9d9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278623,278636] [2022-11-25 15:48:22,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:48:22,515 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:48:22,649 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-25 15:48:22,653 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-25 15:48:22,653 WARN L623 FunctionHandler]: Unknown extern function devm_kmalloc [2022-11-25 15:48:22,669 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-25 15:48:22,671 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 15:48:22,672 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-25 15:48:22,674 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 15:48:22,675 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 15:48:22,677 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 15:48:22,678 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 15:48:22,691 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-11-25 15:48:22,694 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-11-25 15:48:22,697 WARN L623 FunctionHandler]: Unknown extern function spi_sync [2022-11-25 15:48:22,698 WARN L623 FunctionHandler]: Unknown extern function clk_prepare [2022-11-25 15:48:22,699 WARN L623 FunctionHandler]: Unknown extern function clk_enable [2022-11-25 15:48:22,699 WARN L623 FunctionHandler]: Unknown extern function clk_unprepare [2022-11-25 15:48:22,700 WARN L623 FunctionHandler]: Unknown extern function clk_disable [2022-11-25 15:48:22,700 WARN L623 FunctionHandler]: Unknown extern function clk_unprepare [2022-11-25 15:48:22,703 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 15:48:22,704 WARN L623 FunctionHandler]: Unknown extern function can_free_echo_skb [2022-11-25 15:48:22,707 WARN L623 FunctionHandler]: Unknown extern function spi_sync [2022-11-25 15:48:22,708 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:48:22,724 WARN L623 FunctionHandler]: Unknown extern function alloc_can_skb [2022-11-25 15:48:22,725 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:48:22,731 WARN L623 FunctionHandler]: Unknown extern function can_led_event [2022-11-25 15:48:22,731 WARN L623 FunctionHandler]: Unknown extern function netif_rx_ni [2022-11-25 15:48:22,734 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 15:48:22,737 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-25 15:48:22,738 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:48:22,742 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 15:48:22,744 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:48:22,745 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:48:22,746 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-11-25 15:48:22,746 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:48:22,752 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 15:48:22,754 WARN L623 FunctionHandler]: Unknown extern function regulator_enable [2022-11-25 15:48:22,755 WARN L623 FunctionHandler]: Unknown extern function regulator_disable [2022-11-25 15:48:22,757 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-11-25 15:48:22,758 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-11-25 15:48:22,759 WARN L623 FunctionHandler]: Unknown extern function destroy_workqueue [2022-11-25 15:48:22,760 WARN L623 FunctionHandler]: Unknown extern function can_led_event [2022-11-25 15:48:22,760 WARN L623 FunctionHandler]: Unknown extern function alloc_can_err_skb [2022-11-25 15:48:22,761 WARN L623 FunctionHandler]: Unknown extern function netif_rx_ni [2022-11-25 15:48:22,762 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 15:48:22,765 WARN L623 FunctionHandler]: Unknown extern function can_put_echo_skb [2022-11-25 15:48:22,767 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 15:48:22,768 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-25 15:48:22,782 WARN L623 FunctionHandler]: Unknown extern function can_bus_off [2022-11-25 15:48:22,783 WARN L623 FunctionHandler]: Unknown extern function can_led_event [2022-11-25 15:48:22,784 WARN L623 FunctionHandler]: Unknown extern function can_get_echo_skb [2022-11-25 15:48:22,786 WARN L623 FunctionHandler]: Unknown extern function open_candev [2022-11-25 15:48:22,786 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:48:22,789 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 15:48:22,789 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-11-25 15:48:22,790 WARN L623 FunctionHandler]: Unknown extern function __alloc_workqueue_key [2022-11-25 15:48:22,791 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 15:48:22,792 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 15:48:22,793 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 15:48:22,796 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 15:48:22,798 WARN L623 FunctionHandler]: Unknown extern function can_led_event [2022-11-25 15:48:22,805 WARN L623 FunctionHandler]: Unknown extern function devm_clk_get [2022-11-25 15:48:22,807 WARN L623 FunctionHandler]: Unknown extern function clk_get_rate [2022-11-25 15:48:22,808 WARN L623 FunctionHandler]: Unknown extern function alloc_candev [2022-11-25 15:48:22,810 WARN L623 FunctionHandler]: Unknown extern function spi_get_device_id [2022-11-25 15:48:22,811 WARN L623 FunctionHandler]: Unknown extern function devm_regulator_get [2022-11-25 15:48:22,812 WARN L623 FunctionHandler]: Unknown extern function devm_regulator_get [2022-11-25 15:48:22,815 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 15:48:22,827 WARN L623 FunctionHandler]: Unknown extern function spi_setup [2022-11-25 15:48:22,828 WARN L623 FunctionHandler]: Unknown extern function devm_can_led_init [2022-11-25 15:48:22,828 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 15:48:22,830 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-11-25 15:48:22,832 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-11-25 15:48:22,833 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-11-25 15:48:22,833 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-25 15:48:22,835 WARN L623 FunctionHandler]: Unknown extern function regulator_disable [2022-11-25 15:48:22,836 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-11-25 15:48:22,862 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 15:48:22,863 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 15:48:22,878 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 15:48:22,928 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 15:48:22,937 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 15:48:22,937 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 15:48:22,939 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 15:48:22,940 WARN L623 FunctionHandler]: Unknown extern function register_candev [2022-11-25 15:48:22,941 WARN L623 FunctionHandler]: Unknown extern function unregister_candev [2022-11-25 15:48:22,941 WARN L623 FunctionHandler]: Unknown extern function spi_register_driver [2022-11-25 15:48:22,944 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-25 15:48:22,945 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 15:48:22,945 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 15:48:22,959 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_5ee7353d-dcfd-4a96-82a0-5bd8caf4c9d9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278128,278141] [2022-11-25 15:48:22,959 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_5ee7353d-dcfd-4a96-82a0-5bd8caf4c9d9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278294,278307] [2022-11-25 15:48:22,960 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_5ee7353d-dcfd-4a96-82a0-5bd8caf4c9d9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278458,278471] [2022-11-25 15:48:22,960 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_5ee7353d-dcfd-4a96-82a0-5bd8caf4c9d9/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278623,278636] [2022-11-25 15:48:22,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:48:23,140 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:48:23,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:23 WrapperNode [2022-11-25 15:48:23,140 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:48:23,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:48:23,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:48:23,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:48:23,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:23" (1/1) ... [2022-11-25 15:48:23,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:23" (1/1) ... [2022-11-25 15:48:23,405 INFO L138 Inliner]: procedures = 340, calls = 1537, calls flagged for inlining = 194, calls inlined = 177, statements flattened = 4110 [2022-11-25 15:48:23,406 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:48:23,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:48:23,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:48:23,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:48:23,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:23" (1/1) ... [2022-11-25 15:48:23,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:23" (1/1) ... [2022-11-25 15:48:23,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:23" (1/1) ... [2022-11-25 15:48:23,440 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:23" (1/1) ... [2022-11-25 15:48:23,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:23" (1/1) ... [2022-11-25 15:48:23,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:23" (1/1) ... [2022-11-25 15:48:23,642 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:23" (1/1) ... [2022-11-25 15:48:23,657 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:23" (1/1) ... [2022-11-25 15:48:23,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:48:23,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:48:23,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:48:23,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:48:23,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:23" (1/1) ... [2022-11-25 15:48:23,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:48:23,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee7353d-dcfd-4a96-82a0-5bd8caf4c9d9/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:48:23,743 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee7353d-dcfd-4a96-82a0-5bd8caf4c9d9/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:48:23,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ee7353d-dcfd-4a96-82a0-5bd8caf4c9d9/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:48:23,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 15:48:23,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 15:48:23,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 15:48:23,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 15:48:23,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 15:48:23,791 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 15:48:23,792 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-25 15:48:23,793 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-25 15:48:23,793 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2022-11-25 15:48:23,793 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2022-11-25 15:48:23,794 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 15:48:23,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 15:48:23,794 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open_clean [2022-11-25 15:48:23,794 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open_clean [2022-11-25 15:48:23,794 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-25 15:48:23,794 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-25 15:48:23,794 INFO L130 BoogieDeclarations]: Found specification of procedure devm_regulator_get [2022-11-25 15:48:23,794 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_regulator_get [2022-11-25 15:48:23,794 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_spi_trans [2022-11-25 15:48:23,795 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_spi_trans [2022-11-25 15:48:23,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_mcp251x_can_driver_exit_12_2 [2022-11-25 15:48:23,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_mcp251x_can_driver_exit_12_2 [2022-11-25 15:48:23,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-25 15:48:23,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-25 15:48:23,795 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_read_reg [2022-11-25 15:48:23,795 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_read_reg [2022-11-25 15:48:23,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:48:23,795 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-25 15:48:23,795 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-25 15:48:23,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 15:48:23,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-25 15:48:23,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-25 15:48:23,796 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_stop [2022-11-25 15:48:23,796 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_stop [2022-11-25 15:48:23,796 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_bits [2022-11-25 15:48:23,796 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_bits [2022-11-25 15:48:23,796 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-25 15:48:23,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-25 15:48:23,797 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-25 15:48:23,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2022-11-25 15:48:23,797 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx_ni [2022-11-25 15:48:23,797 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx_ni [2022-11-25 15:48:23,797 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2022-11-25 15:48:23,797 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2022-11-25 15:48:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:48:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 15:48:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2022-11-25 15:48:23,798 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2022-11-25 15:48:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-25 15:48:23,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-25 15:48:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-25 15:48:23,798 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-25 15:48:23,798 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-25 15:48:23,799 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-25 15:48:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2022-11-25 15:48:23,799 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2022-11-25 15:48:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-25 15:48:23,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-25 15:48:23,799 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-25 15:48:23,799 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-25 15:48:23,800 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2022-11-25 15:48:23,804 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2022-11-25 15:48:23,804 INFO L130 BoogieDeclarations]: Found specification of procedure clk_disable_unprepare [2022-11-25 15:48:23,804 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_disable_unprepare [2022-11-25 15:48:23,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-25 15:48:23,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-25 15:48:23,804 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-11-25 15:48:23,805 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-11-25 15:48:23,805 INFO L130 BoogieDeclarations]: Found specification of procedure clk_unprepare [2022-11-25 15:48:23,805 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_unprepare [2022-11-25 15:48:23,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 15:48:23,806 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_set_normal_mode [2022-11-25 15:48:23,806 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_set_normal_mode [2022-11-25 15:48:23,807 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-25 15:48:23,807 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-25 15:48:23,807 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_remove [2022-11-25 15:48:23,807 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_remove [2022-11-25 15:48:23,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 15:48:23,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-25 15:48:23,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-25 15:48:23,807 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_error_skb [2022-11-25 15:48:23,807 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_error_skb [2022-11-25 15:48:23,807 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_sleep [2022-11-25 15:48:23,808 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_sleep [2022-11-25 15:48:23,808 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-25 15:48:23,808 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-25 15:48:23,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:48:23,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-25 15:48:23,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2022-11-25 15:48:23,808 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_clean [2022-11-25 15:48:23,808 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_clean [2022-11-25 15:48:23,808 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2022-11-25 15:48:23,808 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2022-11-25 15:48:23,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 15:48:23,809 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 15:48:23,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-25 15:48:23,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-25 15:48:23,809 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_power_enable [2022-11-25 15:48:23,809 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_power_enable [2022-11-25 15:48:23,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-25 15:48:23,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2022-11-25 15:48:23,809 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_suspend [2022-11-25 15:48:23,809 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_suspend [2022-11-25 15:48:23,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:48:23,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mcp_lock_of_mcp251x_priv [2022-11-25 15:48:23,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mcp_lock_of_mcp251x_priv [2022-11-25 15:48:23,810 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open [2022-11-25 15:48:23,810 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open [2022-11-25 15:48:23,810 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_probe [2022-11-25 15:48:23,810 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_probe [2022-11-25 15:48:23,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mcp_lock_of_mcp251x_priv [2022-11-25 15:48:23,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mcp_lock_of_mcp251x_priv [2022-11-25 15:48:23,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 15:48:23,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 15:48:23,811 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_resume [2022-11-25 15:48:23,811 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_resume [2022-11-25 15:48:23,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 15:48:23,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-25 15:48:23,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-25 15:48:23,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-25 15:48:23,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-25 15:48:23,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2022-11-25 15:48:23,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2022-11-25 15:48:23,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-25 15:48:23,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-25 15:48:23,812 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_reset [2022-11-25 15:48:23,813 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_reset [2022-11-25 15:48:23,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:48:23,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-25 15:48:23,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-25 15:48:23,813 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-25 15:48:23,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-25 15:48:23,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 15:48:23,813 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2022-11-25 15:48:23,813 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2022-11-25 15:48:23,813 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 15:48:23,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 15:48:23,814 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-25 15:48:23,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-25 15:48:23,814 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2022-11-25 15:48:23,814 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2022-11-25 15:48:23,814 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-25 15:48:23,814 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-25 15:48:23,814 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_setup [2022-11-25 15:48:23,814 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_setup [2022-11-25 15:48:23,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-25 15:48:23,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-25 15:48:23,815 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2022-11-25 15:48:23,815 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2022-11-25 15:48:23,815 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-25 15:48:23,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-25 15:48:23,815 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-25 15:48:23,815 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-25 15:48:23,815 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_rx [2022-11-25 15:48:23,815 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_rx [2022-11-25 15:48:23,815 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_is_2510 [2022-11-25 15:48:23,815 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_is_2510 [2022-11-25 15:48:23,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:48:23,816 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2022-11-25 15:48:23,816 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2022-11-25 15:48:23,816 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_reg [2022-11-25 15:48:23,816 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_reg [2022-11-25 15:48:23,816 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-11-25 15:48:23,816 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-11-25 15:48:23,816 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-25 15:48:23,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-25 15:48:23,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:48:23,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:48:23,817 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-25 15:48:23,817 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-25 15:48:24,556 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:48:24,561 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:48:25,157 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 15:49:29,006 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-25 15:49:30,380 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:49:30,396 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:49:30,396 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 15:49:30,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:49:30 BoogieIcfgContainer [2022-11-25 15:49:30,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:49:30,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:49:30,402 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:49:30,405 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:49:30,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:48:20" (1/3) ... [2022-11-25 15:49:30,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d393c37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:49:30, skipping insertion in model container [2022-11-25 15:49:30,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:48:23" (2/3) ... [2022-11-25 15:49:30,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d393c37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:49:30, skipping insertion in model container [2022-11-25 15:49:30,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:49:30" (3/3) ... [2022-11-25 15:49:30,408 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i [2022-11-25 15:49:30,427 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:49:30,427 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-25 15:49:30,501 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:49:30,508 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@16b753ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:49:30,508 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-11-25 15:49:30,517 INFO L276 IsEmpty]: Start isEmpty. Operand has 1481 states, 1043 states have (on average 1.2905081495685522) internal successors, (1346), 1066 states have internal predecessors, (1346), 359 states have call successors, (359), 77 states have call predecessors, (359), 76 states have return successors, (350), 344 states have call predecessors, (350), 350 states have call successors, (350) [2022-11-25 15:49:30,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-25 15:49:30,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:49:30,553 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:49:30,554 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 15:49:30,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:49:30,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1706138826, now seen corresponding path program 1 times [2022-11-25 15:49:30,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:49:30,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378611407] [2022-11-25 15:49:30,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:49:30,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:49:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:32,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:49:32,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:32,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:49:32,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:32,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:49:32,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:32,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:49:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:32,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:49:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:32,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:49:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:32,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 15:49:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:32,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:49:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:32,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-25 15:49:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:32,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:49:32,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:32,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:49:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:32,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:49:32,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:32,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-25 15:49:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:32,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:49:32,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:32,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 15:49:32,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:32,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:49:32,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:32,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 15:49:32,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:32,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:49:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:32,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 15:49:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:32,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:49:32,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:32,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-25 15:49:32,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:32,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:49:32,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:32,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-25 15:49:32,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:32,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-25 15:49:32,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:32,409 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2022-11-25 15:49:32,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:49:32,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378611407] [2022-11-25 15:49:32,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378611407] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:49:32,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:49:32,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 15:49:32,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835089447] [2022-11-25 15:49:32,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:49:32,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:49:32,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:49:32,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:49:32,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:49:32,469 INFO L87 Difference]: Start difference. First operand has 1481 states, 1043 states have (on average 1.2905081495685522) internal successors, (1346), 1066 states have internal predecessors, (1346), 359 states have call successors, (359), 77 states have call predecessors, (359), 76 states have return successors, (350), 344 states have call predecessors, (350), 350 states have call successors, (350) Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-25 15:49:34,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:49:36,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:49:41,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:49:46,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:49:47,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:49:50,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:49:50,698 INFO L93 Difference]: Finished difference Result 4271 states and 6119 transitions. [2022-11-25 15:49:50,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:49:50,701 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 149 [2022-11-25 15:49:50,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:49:50,750 INFO L225 Difference]: With dead ends: 4271 [2022-11-25 15:49:50,750 INFO L226 Difference]: Without dead ends: 2799 [2022-11-25 15:49:50,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:49:50,769 INFO L413 NwaCegarLoop]: 1891 mSDtfsCounter, 2326 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 1571 mSolverCounterSat, 872 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2558 SdHoareTripleChecker+Valid, 4385 SdHoareTripleChecker+Invalid, 2446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 872 IncrementalHoareTripleChecker+Valid, 1571 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2022-11-25 15:49:50,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2558 Valid, 4385 Invalid, 2446 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [872 Valid, 1571 Invalid, 3 Unknown, 0 Unchecked, 17.7s Time] [2022-11-25 15:49:50,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2799 states. [2022-11-25 15:49:51,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2799 to 2736. [2022-11-25 15:49:51,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2736 states, 1939 states have (on average 1.2738525012893245) internal successors, (2470), 1986 states have internal predecessors, (2470), 645 states have call successors, (645), 149 states have call predecessors, (645), 149 states have return successors, (735), 623 states have call predecessors, (735), 641 states have call successors, (735) [2022-11-25 15:49:51,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2736 states to 2736 states and 3850 transitions. [2022-11-25 15:49:51,085 INFO L78 Accepts]: Start accepts. Automaton has 2736 states and 3850 transitions. Word has length 149 [2022-11-25 15:49:51,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:49:51,090 INFO L495 AbstractCegarLoop]: Abstraction has 2736 states and 3850 transitions. [2022-11-25 15:49:51,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-25 15:49:51,090 INFO L276 IsEmpty]: Start isEmpty. Operand 2736 states and 3850 transitions. [2022-11-25 15:49:51,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-25 15:49:51,106 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:49:51,106 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:49:51,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:49:51,107 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 15:49:51,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:49:51,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1284108682, now seen corresponding path program 1 times [2022-11-25 15:49:51,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:49:51,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81990922] [2022-11-25 15:49:51,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:49:51,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:49:51,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:51,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:49:51,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:51,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:49:51,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:51,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:49:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:51,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:49:51,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:51,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:49:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:51,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:49:51,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:52,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 15:49:52,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:52,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:49:52,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:52,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-25 15:49:52,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:52,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:49:52,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:52,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:49:52,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:52,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:49:52,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:52,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-25 15:49:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:52,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:49:52,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:52,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 15:49:52,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:52,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:49:52,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:52,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 15:49:52,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:52,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:49:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:52,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 15:49:52,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:52,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:49:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:52,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-25 15:49:52,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:52,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:49:52,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:52,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-25 15:49:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:52,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-25 15:49:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:49:52,155 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2022-11-25 15:49:52,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:49:52,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81990922] [2022-11-25 15:49:52,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81990922] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:49:52,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:49:52,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 15:49:52,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066635252] [2022-11-25 15:49:52,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:49:52,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:49:52,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:49:52,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:49:52,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:49:52,162 INFO L87 Difference]: Start difference. First operand 2736 states and 3850 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-25 15:49:54,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:49:56,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:49:59,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:50:05,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:50:09,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:50:09,086 INFO L93 Difference]: Finished difference Result 8103 states and 11438 transitions. [2022-11-25 15:50:09,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:50:09,087 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 151 [2022-11-25 15:50:09,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:50:09,127 INFO L225 Difference]: With dead ends: 8103 [2022-11-25 15:50:09,127 INFO L226 Difference]: Without dead ends: 5394 [2022-11-25 15:50:09,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:50:09,148 INFO L413 NwaCegarLoop]: 1861 mSDtfsCounter, 2390 mSDsluCounter, 2448 mSDsCounter, 0 mSdLazyCounter, 1567 mSolverCounterSat, 841 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2642 SdHoareTripleChecker+Valid, 4309 SdHoareTripleChecker+Invalid, 2410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 841 IncrementalHoareTripleChecker+Valid, 1567 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2022-11-25 15:50:09,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2642 Valid, 4309 Invalid, 2410 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [841 Valid, 1567 Invalid, 2 Unknown, 0 Unchecked, 16.4s Time] [2022-11-25 15:50:09,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5394 states. [2022-11-25 15:50:09,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5394 to 5302. [2022-11-25 15:50:09,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5302 states, 3770 states have (on average 1.2745358090185677) internal successors, (4805), 3856 states have internal predecessors, (4805), 1234 states have call successors, (1234), 294 states have call predecessors, (1234), 295 states have return successors, (1418), 1197 states have call predecessors, (1418), 1230 states have call successors, (1418) [2022-11-25 15:50:09,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5302 states to 5302 states and 7457 transitions. [2022-11-25 15:50:09,434 INFO L78 Accepts]: Start accepts. Automaton has 5302 states and 7457 transitions. Word has length 151 [2022-11-25 15:50:09,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:50:09,437 INFO L495 AbstractCegarLoop]: Abstraction has 5302 states and 7457 transitions. [2022-11-25 15:50:09,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-11-25 15:50:09,438 INFO L276 IsEmpty]: Start isEmpty. Operand 5302 states and 7457 transitions. [2022-11-25 15:50:09,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-25 15:50:09,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:50:09,444 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:50:09,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 15:50:09,444 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 15:50:09,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:50:09,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1122841619, now seen corresponding path program 1 times [2022-11-25 15:50:09,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:50:09,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226113102] [2022-11-25 15:50:09,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:09,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:50:09,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:10,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:50:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:10,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:10,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:50:10,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:10,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:10,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:10,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:50:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:10,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:10,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:10,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 15:50:10,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:10,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:10,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:10,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-25 15:50:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:10,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:10,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:10,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:50:10,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:10,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:10,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:10,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-25 15:50:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:10,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:10,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:10,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 15:50:10,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:10,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:10,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:10,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 15:50:10,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:10,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:10,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 15:50:10,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:10,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:10,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-25 15:50:10,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:10,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:10,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:10,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-25 15:50:10,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:10,478 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2022-11-25 15:50:10,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:50:10,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226113102] [2022-11-25 15:50:10,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226113102] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:50:10,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:50:10,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 15:50:10,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385584729] [2022-11-25 15:50:10,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:50:10,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:50:10,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:50:10,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:50:10,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:50:10,483 INFO L87 Difference]: Start difference. First operand 5302 states and 7457 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 15:50:12,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:50:14,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:50:26,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:50:26,831 INFO L93 Difference]: Finished difference Result 15356 states and 21542 transitions. [2022-11-25 15:50:26,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:50:26,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 151 [2022-11-25 15:50:26,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:50:26,906 INFO L225 Difference]: With dead ends: 15356 [2022-11-25 15:50:26,906 INFO L226 Difference]: Without dead ends: 10081 [2022-11-25 15:50:26,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:50:26,937 INFO L413 NwaCegarLoop]: 1839 mSDtfsCounter, 2193 mSDsluCounter, 2396 mSDsCounter, 0 mSdLazyCounter, 1688 mSolverCounterSat, 862 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2425 SdHoareTripleChecker+Valid, 4235 SdHoareTripleChecker+Invalid, 2552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 862 IncrementalHoareTripleChecker+Valid, 1688 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2022-11-25 15:50:26,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2425 Valid, 4235 Invalid, 2552 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [862 Valid, 1688 Invalid, 2 Unknown, 0 Unchecked, 15.8s Time] [2022-11-25 15:50:26,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10081 states. [2022-11-25 15:50:27,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10081 to 9880. [2022-11-25 15:50:27,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9880 states, 6970 states have (on average 1.2658536585365854) internal successors, (8823), 7148 states have internal predecessors, (8823), 2322 states have call successors, (2322), 582 states have call predecessors, (2322), 585 states have return successors, (2554), 2241 states have call predecessors, (2554), 2318 states have call successors, (2554) [2022-11-25 15:50:27,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9880 states to 9880 states and 13699 transitions. [2022-11-25 15:50:27,698 INFO L78 Accepts]: Start accepts. Automaton has 9880 states and 13699 transitions. Word has length 151 [2022-11-25 15:50:27,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:50:27,699 INFO L495 AbstractCegarLoop]: Abstraction has 9880 states and 13699 transitions. [2022-11-25 15:50:27,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 15:50:27,701 INFO L276 IsEmpty]: Start isEmpty. Operand 9880 states and 13699 transitions. [2022-11-25 15:50:27,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-25 15:50:27,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:50:27,703 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:50:27,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 15:50:27,704 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 15:50:27,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:50:27,705 INFO L85 PathProgramCache]: Analyzing trace with hash -860615130, now seen corresponding path program 1 times [2022-11-25 15:50:27,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:50:27,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964623646] [2022-11-25 15:50:27,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:27,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:50:27,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:28,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:50:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:28,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:28,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:50:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:28,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:28,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:28,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:50:28,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:28,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:28,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 15:50:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:28,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:28,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-25 15:50:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:28,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:28,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:50:28,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:28,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:28,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:28,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-25 15:50:28,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:28,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:28,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 15:50:28,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:28,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:28,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 15:50:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:28,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:28,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 15:50:28,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:28,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:28,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:28,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-25 15:50:28,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:28,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:28,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:28,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-25 15:50:28,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:28,564 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2022-11-25 15:50:28,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:50:28,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964623646] [2022-11-25 15:50:28,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964623646] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:50:28,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:50:28,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 15:50:28,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196704394] [2022-11-25 15:50:28,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:50:28,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:50:28,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:50:28,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:50:28,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:50:28,567 INFO L87 Difference]: Start difference. First operand 9880 states and 13699 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 15:50:30,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:50:32,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:50:36,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:50:41,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:50:45,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:50:45,160 INFO L93 Difference]: Finished difference Result 24062 states and 33304 transitions. [2022-11-25 15:50:45,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:50:45,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 152 [2022-11-25 15:50:45,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:50:45,278 INFO L225 Difference]: With dead ends: 24062 [2022-11-25 15:50:45,278 INFO L226 Difference]: Without dead ends: 14209 [2022-11-25 15:50:45,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:50:45,327 INFO L413 NwaCegarLoop]: 1870 mSDtfsCounter, 2323 mSDsluCounter, 2452 mSDsCounter, 0 mSdLazyCounter, 1601 mSolverCounterSat, 860 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2568 SdHoareTripleChecker+Valid, 4322 SdHoareTripleChecker+Invalid, 2463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 860 IncrementalHoareTripleChecker+Valid, 1601 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2022-11-25 15:50:45,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2568 Valid, 4322 Invalid, 2463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [860 Valid, 1601 Invalid, 2 Unknown, 0 Unchecked, 15.8s Time] [2022-11-25 15:50:45,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14209 states. [2022-11-25 15:50:45,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14209 to 13972. [2022-11-25 15:50:45,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13972 states, 9840 states have (on average 1.256808943089431) internal successors, (12367), 10100 states have internal predecessors, (12367), 3258 states have call successors, (3258), 866 states have call predecessors, (3258), 871 states have return successors, (3568), 3127 states have call predecessors, (3568), 3254 states have call successors, (3568) [2022-11-25 15:50:46,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13972 states to 13972 states and 19193 transitions. [2022-11-25 15:50:46,062 INFO L78 Accepts]: Start accepts. Automaton has 13972 states and 19193 transitions. Word has length 152 [2022-11-25 15:50:46,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:50:46,062 INFO L495 AbstractCegarLoop]: Abstraction has 13972 states and 19193 transitions. [2022-11-25 15:50:46,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-25 15:50:46,063 INFO L276 IsEmpty]: Start isEmpty. Operand 13972 states and 19193 transitions. [2022-11-25 15:50:46,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-11-25 15:50:46,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:50:46,066 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:50:46,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 15:50:46,066 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 15:50:46,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:50:46,067 INFO L85 PathProgramCache]: Analyzing trace with hash 826332162, now seen corresponding path program 1 times [2022-11-25 15:50:46,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:50:46,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753121538] [2022-11-25 15:50:46,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:50:46,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:50:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:50:47,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:50:47,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:47,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:50:47,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:47,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 15:50:47,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-25 15:50:47,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:47,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:50:47,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-25 15:50:47,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:47,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 15:50:47,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:47,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 15:50:47,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:47,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 15:50:47,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:47,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-25 15:50:47,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:50:47,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-25 15:50:47,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-25 15:50:47,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-25 15:50:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:50:47,977 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2022-11-25 15:50:47,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:50:47,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753121538] [2022-11-25 15:50:47,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753121538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:50:47,978 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:50:47,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 15:50:47,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789274195] [2022-11-25 15:50:47,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:50:47,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 15:50:47,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:50:47,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 15:50:47,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:50:47,980 INFO L87 Difference]: Start difference. First operand 13972 states and 19193 transitions. Second operand has 7 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-25 15:50:50,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:50:52,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:50:56,783 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:50:58,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:51:08,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:51:11,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:51:22,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:51:22,435 INFO L93 Difference]: Finished difference Result 55639 states and 77153 transitions. [2022-11-25 15:51:22,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 15:51:22,436 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 160 [2022-11-25 15:51:22,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:51:22,682 INFO L225 Difference]: With dead ends: 55639 [2022-11-25 15:51:22,683 INFO L226 Difference]: Without dead ends: 41694 [2022-11-25 15:51:22,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:51:22,753 INFO L413 NwaCegarLoop]: 2185 mSDtfsCounter, 8844 mSDsluCounter, 4626 mSDsCounter, 0 mSdLazyCounter, 3751 mSolverCounterSat, 3696 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9376 SdHoareTripleChecker+Valid, 6811 SdHoareTripleChecker+Invalid, 7450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3696 IncrementalHoareTripleChecker+Valid, 3751 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.6s IncrementalHoareTripleChecker+Time [2022-11-25 15:51:22,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9376 Valid, 6811 Invalid, 7450 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3696 Valid, 3751 Invalid, 3 Unknown, 0 Unchecked, 32.6s Time] [2022-11-25 15:51:22,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41694 states. [2022-11-25 15:51:25,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41694 to 40652. [2022-11-25 15:51:25,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40652 states, 28588 states have (on average 1.2575556177417098) internal successors, (35951), 29436 states have internal predecessors, (35951), 9498 states have call successors, (9498), 2570 states have call predecessors, (9498), 2563 states have return successors, (10956), 9011 states have call predecessors, (10956), 9494 states have call successors, (10956) [2022-11-25 15:51:25,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40652 states to 40652 states and 56405 transitions. [2022-11-25 15:51:25,294 INFO L78 Accepts]: Start accepts. Automaton has 40652 states and 56405 transitions. Word has length 160 [2022-11-25 15:51:25,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:51:25,295 INFO L495 AbstractCegarLoop]: Abstraction has 40652 states and 56405 transitions. [2022-11-25 15:51:25,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 5 states have internal predecessors, (45), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-25 15:51:25,295 INFO L276 IsEmpty]: Start isEmpty. Operand 40652 states and 56405 transitions. [2022-11-25 15:51:25,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-25 15:51:25,300 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:51:25,301 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 11, 11, 11, 11, 11, 11, 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] [2022-11-25 15:51:25,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 15:51:25,301 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 15:51:25,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:25,302 INFO L85 PathProgramCache]: Analyzing trace with hash 5291082, now seen corresponding path program 1 times [2022-11-25 15:51:25,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:25,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795900056] [2022-11-25 15:51:25,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:25,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:25,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:51:26,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:51:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:51:26,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:51:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:51:26,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:51:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 15:51:26,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:51:26,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-25 15:51:26,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:51:26,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:51:26,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:51:26,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-25 15:51:26,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:51:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 15:51:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:51:26,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 15:51:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:51:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 15:51:26,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:51:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-25 15:51:26,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:51:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-25 15:51:26,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-25 15:51:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-25 15:51:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:26,716 INFO L134 CoverageAnalysis]: Checked inductivity of 571 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2022-11-25 15:51:26,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:51:26,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795900056] [2022-11-25 15:51:26,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795900056] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:51:26,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:51:26,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 15:51:26,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295346634] [2022-11-25 15:51:26,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:51:26,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:51:26,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:51:26,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:51:26,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:51:26,719 INFO L87 Difference]: Start difference. First operand 40652 states and 56405 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-25 15:51:28,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:51:31,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:51:39,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:51:44,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:51:44,924 INFO L93 Difference]: Finished difference Result 99192 states and 137483 transitions. [2022-11-25 15:51:44,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:51:44,924 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 176 [2022-11-25 15:51:44,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:51:45,493 INFO L225 Difference]: With dead ends: 99192 [2022-11-25 15:51:45,493 INFO L226 Difference]: Without dead ends: 58567 [2022-11-25 15:51:45,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:51:45,649 INFO L413 NwaCegarLoop]: 2199 mSDtfsCounter, 2313 mSDsluCounter, 2716 mSDsCounter, 0 mSdLazyCounter, 1655 mSolverCounterSat, 788 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2563 SdHoareTripleChecker+Valid, 4915 SdHoareTripleChecker+Invalid, 2445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 788 IncrementalHoareTripleChecker+Valid, 1655 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-11-25 15:51:45,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2563 Valid, 4915 Invalid, 2445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [788 Valid, 1655 Invalid, 2 Unknown, 0 Unchecked, 15.9s Time] [2022-11-25 15:51:45,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58567 states. [2022-11-25 15:51:48,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58567 to 57548. [2022-11-25 15:51:48,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57548 states, 40684 states have (on average 1.2543506046603088) internal successors, (51032), 41943 states have internal predecessors, (51032), 13188 states have call successors, (13188), 3693 states have call predecessors, (13188), 3673 states have return successors, (15014), 12452 states have call predecessors, (15014), 13184 states have call successors, (15014) [2022-11-25 15:51:49,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57548 states to 57548 states and 79234 transitions. [2022-11-25 15:51:49,069 INFO L78 Accepts]: Start accepts. Automaton has 57548 states and 79234 transitions. Word has length 176 [2022-11-25 15:51:49,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:51:49,069 INFO L495 AbstractCegarLoop]: Abstraction has 57548 states and 79234 transitions. [2022-11-25 15:51:49,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-25 15:51:49,070 INFO L276 IsEmpty]: Start isEmpty. Operand 57548 states and 79234 transitions. [2022-11-25 15:51:49,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-25 15:51:49,075 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:51:49,075 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:51:49,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 15:51:49,076 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 15:51:49,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:51:49,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1532283462, now seen corresponding path program 1 times [2022-11-25 15:51:49,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:51:49,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072403772] [2022-11-25 15:51:49,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:51:49,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:51:49,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:51:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:51:50,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:51:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:51:50,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:51:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:51:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 15:51:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:51:50,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-25 15:51:50,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:51:50,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:51:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:51:50,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-25 15:51:50,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:51:50,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 15:51:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:51:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 15:51:50,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:51:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 15:51:50,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:51:50,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-25 15:51:50,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:51:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-25 15:51:50,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-25 15:51:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-25 15:51:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-25 15:51:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-25 15:51:50,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:51:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-25 15:51:50,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-25 15:51:50,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-25 15:51:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:51:50,245 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2022-11-25 15:51:50,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:51:50,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072403772] [2022-11-25 15:51:50,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072403772] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:51:50,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:51:50,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 15:51:50,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857554001] [2022-11-25 15:51:50,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:51:50,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:51:50,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:51:50,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:51:50,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:51:50,249 INFO L87 Difference]: Start difference. First operand 57548 states and 79234 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-25 15:51:52,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:51:54,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:52:00,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:52:02,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:52:07,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:52:08,218 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 15:52:14,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:52:14,737 INFO L93 Difference]: Finished difference Result 163381 states and 226114 transitions. [2022-11-25 15:52:14,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:52:14,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 209 [2022-11-25 15:52:14,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:52:15,766 INFO L225 Difference]: With dead ends: 163381 [2022-11-25 15:52:15,766 INFO L226 Difference]: Without dead ends: 109705 [2022-11-25 15:52:16,041 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:52:16,042 INFO L413 NwaCegarLoop]: 3093 mSDtfsCounter, 2020 mSDsluCounter, 3349 mSDsCounter, 0 mSdLazyCounter, 1903 mSolverCounterSat, 525 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2267 SdHoareTripleChecker+Valid, 6442 SdHoareTripleChecker+Invalid, 2431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 525 IncrementalHoareTripleChecker+Valid, 1903 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.3s IncrementalHoareTripleChecker+Time [2022-11-25 15:52:16,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2267 Valid, 6442 Invalid, 2431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [525 Valid, 1903 Invalid, 3 Unknown, 0 Unchecked, 20.3s Time] [2022-11-25 15:52:16,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109705 states. [2022-11-25 15:52:21,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109705 to 107847. [2022-11-25 15:52:21,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107847 states, 76331 states have (on average 1.2544182573266431) internal successors, (95751), 78547 states have internal predecessors, (95751), 24628 states have call successors, (24628), 6918 states have call predecessors, (24628), 6885 states have return successors, (28278), 23422 states have call predecessors, (28278), 24624 states have call successors, (28278) [2022-11-25 15:52:22,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107847 states to 107847 states and 148657 transitions. [2022-11-25 15:52:22,348 INFO L78 Accepts]: Start accepts. Automaton has 107847 states and 148657 transitions. Word has length 209 [2022-11-25 15:52:22,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:52:22,349 INFO L495 AbstractCegarLoop]: Abstraction has 107847 states and 148657 transitions. [2022-11-25 15:52:22,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-11-25 15:52:22,350 INFO L276 IsEmpty]: Start isEmpty. Operand 107847 states and 148657 transitions. [2022-11-25 15:52:22,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-25 15:52:22,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:52:22,356 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:52:22,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 15:52:22,356 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 15:52:22,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:52:22,357 INFO L85 PathProgramCache]: Analyzing trace with hash 390944572, now seen corresponding path program 1 times [2022-11-25 15:52:22,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:52:22,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457267580] [2022-11-25 15:52:22,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:22,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:52:23,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:52:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:52:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:52:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:52:24,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:52:24,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:52:24,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 15:52:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:52:24,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-25 15:52:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:52:24,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:52:24,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:52:24,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-25 15:52:24,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:52:24,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 15:52:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:52:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 15:52:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:52:24,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 15:52:24,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:52:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-25 15:52:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:52:24,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-25 15:52:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-25 15:52:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-25 15:52:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-25 15:52:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-25 15:52:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:52:24,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-25 15:52:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-25 15:52:24,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-25 15:52:24,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:24,879 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2022-11-25 15:52:24,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:52:24,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457267580] [2022-11-25 15:52:24,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457267580] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:52:24,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:52:24,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 15:52:24,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218624454] [2022-11-25 15:52:24,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:52:24,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:52:24,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:52:24,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:52:24,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:52:24,882 INFO L87 Difference]: Start difference. First operand 107847 states and 148657 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-25 15:52:26,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:52:34,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:52:36,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:52:37,588 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 15:52:44,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:52:44,711 INFO L93 Difference]: Finished difference Result 109707 states and 151589 transitions. [2022-11-25 15:52:44,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 15:52:44,712 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 209 [2022-11-25 15:52:44,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:52:45,393 INFO L225 Difference]: With dead ends: 109707 [2022-11-25 15:52:45,393 INFO L226 Difference]: Without dead ends: 109705 [2022-11-25 15:52:45,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:52:45,443 INFO L413 NwaCegarLoop]: 1605 mSDtfsCounter, 2064 mSDsluCounter, 3876 mSDsCounter, 0 mSdLazyCounter, 1854 mSolverCounterSat, 571 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2254 SdHoareTripleChecker+Valid, 5481 SdHoareTripleChecker+Invalid, 2426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 571 IncrementalHoareTripleChecker+Valid, 1854 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-11-25 15:52:45,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2254 Valid, 5481 Invalid, 2426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [571 Valid, 1854 Invalid, 1 Unknown, 0 Unchecked, 15.9s Time] [2022-11-25 15:52:45,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109705 states. [2022-11-25 15:52:50,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109705 to 107851. [2022-11-25 15:52:50,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107851 states, 76334 states have (on average 1.2544082584431577) internal successors, (95754), 78550 states have internal predecessors, (95754), 24628 states have call successors, (24628), 6919 states have call predecessors, (24628), 6886 states have return successors, (28278), 23422 states have call predecessors, (28278), 24624 states have call successors, (28278) [2022-11-25 15:52:51,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107851 states to 107851 states and 148660 transitions. [2022-11-25 15:52:51,198 INFO L78 Accepts]: Start accepts. Automaton has 107851 states and 148660 transitions. Word has length 209 [2022-11-25 15:52:51,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:52:51,200 INFO L495 AbstractCegarLoop]: Abstraction has 107851 states and 148660 transitions. [2022-11-25 15:52:51,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-25 15:52:51,200 INFO L276 IsEmpty]: Start isEmpty. Operand 107851 states and 148660 transitions. [2022-11-25 15:52:51,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-25 15:52:51,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:52:51,209 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:52:51,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 15:52:51,210 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 15:52:51,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:52:51,211 INFO L85 PathProgramCache]: Analyzing trace with hash -351756796, now seen corresponding path program 1 times [2022-11-25 15:52:51,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:52:51,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738485113] [2022-11-25 15:52:51,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:52:51,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:52:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:52:53,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:52:53,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:52:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:52:53,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-25 15:52:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:52:53,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-25 15:52:53,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:52:53,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-25 15:52:53,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:52:53,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-25 15:52:53,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:52:53,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-25 15:52:53,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:52:53,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-25 15:52:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:52:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-25 15:52:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:52:53,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-25 15:52:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:52:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-25 15:52:53,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:52:53,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-25 15:52:53,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-11-25 15:52:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-25 15:52:53,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-25 15:52:53,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-11-25 15:52:53,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:52:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-25 15:52:53,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-25 15:52:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-25 15:52:53,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-11-25 15:52:53,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:52:53,776 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2022-11-25 15:52:53,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:52:53,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738485113] [2022-11-25 15:52:53,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738485113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:52:53,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:52:53,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 15:52:53,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378321717] [2022-11-25 15:52:53,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:52:53,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:52:53,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:52:53,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:52:53,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:52:53,780 INFO L87 Difference]: Start difference. First operand 107851 states and 148660 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-25 15:52:55,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:53:03,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 15:53:11,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:53:11,996 INFO L93 Difference]: Finished difference Result 114493 states and 156722 transitions. [2022-11-25 15:53:11,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 15:53:11,997 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 214 [2022-11-25 15:53:11,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:53:12,459 INFO L225 Difference]: With dead ends: 114493 [2022-11-25 15:53:12,459 INFO L226 Difference]: Without dead ends: 114491 [2022-11-25 15:53:12,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-25 15:53:12,497 INFO L413 NwaCegarLoop]: 1617 mSDtfsCounter, 2043 mSDsluCounter, 3933 mSDsCounter, 0 mSdLazyCounter, 1951 mSolverCounterSat, 574 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2232 SdHoareTripleChecker+Valid, 5550 SdHoareTripleChecker+Invalid, 2527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 574 IncrementalHoareTripleChecker+Valid, 1951 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-11-25 15:53:12,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2232 Valid, 5550 Invalid, 2527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [574 Valid, 1951 Invalid, 2 Unknown, 0 Unchecked, 13.2s Time] [2022-11-25 15:53:12,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114491 states. [2022-11-25 15:53:18,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114491 to 112637. [2022-11-25 15:53:18,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112637 states, 79529 states have (on average 1.250600409913365) internal successors, (99459), 81745 states have internal predecessors, (99459), 25342 states have call successors, (25342), 7796 states have call predecessors, (25342), 7763 states have return successors, (28992), 24136 states have call predecessors, (28992), 25338 states have call successors, (28992) [2022-11-25 15:53:18,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112637 states to 112637 states and 153793 transitions. [2022-11-25 15:53:18,666 INFO L78 Accepts]: Start accepts. Automaton has 112637 states and 153793 transitions. Word has length 214 [2022-11-25 15:53:18,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:53:18,667 INFO L495 AbstractCegarLoop]: Abstraction has 112637 states and 153793 transitions. [2022-11-25 15:53:18,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-25 15:53:18,668 INFO L276 IsEmpty]: Start isEmpty. Operand 112637 states and 153793 transitions. [2022-11-25 15:53:18,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-11-25 15:53:18,675 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:53:18,676 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:53:18,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 15:53:18,676 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 15:53:18,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:53:18,677 INFO L85 PathProgramCache]: Analyzing trace with hash -53515268, now seen corresponding path program 1 times [2022-11-25 15:53:18,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:53:18,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655219993] [2022-11-25 15:53:18,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:53:18,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms