./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d12feb-233b-47cf-a363-a0abe6c9d252/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d12feb-233b-47cf-a363-a0abe6c9d252/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d12feb-233b-47cf-a363-a0abe6c9d252/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d12feb-233b-47cf-a363-a0abe6c9d252/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d12feb-233b-47cf-a363-a0abe6c9d252/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d12feb-233b-47cf-a363-a0abe6c9d252/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash dc0241e7c40235715d7f33abd33c740b0c60d48c0a8a0992cf99bd2d48b4ffd0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 11:48:15,740 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:48:15,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:48:15,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:48:15,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:48:15,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:48:15,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:48:15,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:48:15,759 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:48:15,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:48:15,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:48:15,761 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:48:15,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:48:15,762 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:48:15,762 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:48:15,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:48:15,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:48:15,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:48:15,765 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:48:15,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:48:15,767 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:48:15,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:48:15,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:48:15,770 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:48:15,774 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:48:15,774 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:48:15,774 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:48:15,775 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:48:15,776 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:48:15,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:48:15,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:48:15,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:48:15,778 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:48:15,779 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:48:15,780 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:48:15,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:48:15,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:48:15,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:48:15,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:48:15,782 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:48:15,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:48:15,784 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d12feb-233b-47cf-a363-a0abe6c9d252/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 11:48:15,806 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:48:15,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:48:15,807 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:48:15,807 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:48:15,808 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:48:15,808 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:48:15,808 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:48:15,808 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:48:15,808 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:48:15,808 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:48:15,809 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:48:15,809 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:48:15,809 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:48:15,809 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:48:15,809 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:48:15,809 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:48:15,810 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:48:15,810 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:48:15,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:48:15,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:48:15,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:48:15,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:48:15,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:48:15,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:48:15,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:48:15,811 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:48:15,812 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:48:15,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:48:15,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:48:15,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:48:15,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:48:15,812 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:48:15,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:48:15,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:48:15,813 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:48:15,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:48:15,813 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:48:15,813 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:48:15,813 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d12feb-233b-47cf-a363-a0abe6c9d252/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d12feb-233b-47cf-a363-a0abe6c9d252/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc0241e7c40235715d7f33abd33c740b0c60d48c0a8a0992cf99bd2d48b4ffd0 [2022-12-14 11:48:16,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:48:16,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:48:16,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:48:16,044 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:48:16,044 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:48:16,046 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d12feb-233b-47cf-a363-a0abe6c9d252/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2022-12-14 11:48:18,658 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:48:19,101 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:48:19,102 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d12feb-233b-47cf-a363-a0abe6c9d252/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2022-12-14 11:48:19,132 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d12feb-233b-47cf-a363-a0abe6c9d252/bin/utaipan-gh47qXpMRh/data/18c81b912/ef6fdc3cef5a4b699c7359abf2a1a362/FLAG5fd4d3de3 [2022-12-14 11:48:19,230 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d12feb-233b-47cf-a363-a0abe6c9d252/bin/utaipan-gh47qXpMRh/data/18c81b912/ef6fdc3cef5a4b699c7359abf2a1a362 [2022-12-14 11:48:19,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:48:19,233 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:48:19,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:48:19,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:48:19,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:48:19,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:48:19" (1/1) ... [2022-12-14 11:48:19,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4771a734 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:48:19, skipping insertion in model container [2022-12-14 11:48:19,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:48:19" (1/1) ... [2022-12-14 11:48:19,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:48:19,357 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:48:20,062 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 11:48:20,066 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 11:48:20,071 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 11:48:20,087 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 11:48:20,113 WARN L623 FunctionHandler]: Unknown extern function devm_pinctrl_get [2022-12-14 11:48:20,113 WARN L623 FunctionHandler]: Unknown extern function pinctrl_lookup_state [2022-12-14 11:48:20,114 WARN L623 FunctionHandler]: Unknown extern function devm_pinctrl_put [2022-12-14 11:48:20,114 WARN L623 FunctionHandler]: Unknown extern function pinctrl_select_state [2022-12-14 11:48:20,115 WARN L623 FunctionHandler]: Unknown extern function devm_pinctrl_put [2022-12-14 11:48:20,179 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:20,222 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 11:48:20,226 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 11:48:20,226 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 11:48:20,232 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 11:48:20,237 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-12-14 11:48:20,252 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 11:48:20,257 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 11:48:20,258 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 11:48:20,289 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 11:48:20,304 WARN L623 FunctionHandler]: Unknown extern function skb_tstamp_tx [2022-12-14 11:48:20,308 WARN L623 FunctionHandler]: Unknown extern function skb_clone_tx_timestamp [2022-12-14 11:48:20,333 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 11:48:20,340 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 11:48:20,340 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 11:48:20,383 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 11:48:20,383 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 11:48:20,391 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 11:48:20,392 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:48:20,416 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 11:48:20,420 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 11:48:20,528 WARN L623 FunctionHandler]: Unknown extern function gpio_to_desc [2022-12-14 11:48:20,528 WARN L623 FunctionHandler]: Unknown extern function gpiod_to_irq [2022-12-14 11:48:20,542 WARN L623 FunctionHandler]: Unknown extern function devm_request_threaded_irq [2022-12-14 11:48:20,571 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-12-14 11:48:20,580 WARN L623 FunctionHandler]: Unknown extern function mdiobus_alloc_size [2022-12-14 11:48:20,678 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:48:20,696 WARN L623 FunctionHandler]: Unknown extern function clk_round_rate [2022-12-14 11:48:20,697 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 11:48:20,698 WARN L623 FunctionHandler]: Unknown extern function clk_set_rate [2022-12-14 11:48:20,698 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:48:20,703 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:48:20,716 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 11:48:20,716 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:48:20,717 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 11:48:20,718 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:48:20,723 WARN L623 FunctionHandler]: Unknown extern function phy_find_first [2022-12-14 11:48:20,724 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:48:20,725 WARN L623 FunctionHandler]: Unknown extern function devm_gpio_request [2022-12-14 11:48:20,726 WARN L623 FunctionHandler]: Unknown extern function phy_connect_direct [2022-12-14 11:48:20,727 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:48:20,734 WARN L623 FunctionHandler]: Unknown extern function phy_find_first [2022-12-14 11:48:20,735 WARN L623 FunctionHandler]: Unknown extern function mdiobus_scan [2022-12-14 11:48:20,737 WARN L623 FunctionHandler]: Unknown extern function mdiobus_register [2022-12-14 11:48:20,738 WARN L623 FunctionHandler]: Unknown extern function mdiobus_unregister [2022-12-14 11:48:20,738 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:48:20,739 WARN L623 FunctionHandler]: Unknown extern function mdiobus_free [2022-12-14 11:48:20,745 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 11:48:20,752 WARN L623 FunctionHandler]: Unknown extern function usecs_to_jiffies [2022-12-14 11:48:20,753 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-12-14 11:48:20,759 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:48:20,760 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:48:20,762 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 11:48:20,777 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:48:20,778 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 11:48:20,791 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:48:20,793 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:48:20,794 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 11:48:20,794 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 11:48:20,795 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 11:48:20,802 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 11:48:20,804 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 11:48:20,804 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 11:48:20,818 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-12-14 11:48:20,826 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 11:48:20,827 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:48:20,833 WARN L623 FunctionHandler]: Unknown extern function trace_hardirqs_off [2022-12-14 11:48:20,833 WARN L623 FunctionHandler]: Unknown extern function trace_hardirqs_off [2022-12-14 11:48:20,834 WARN L623 FunctionHandler]: Unknown extern function trace_hardirqs_on [2022-12-14 11:48:20,839 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:48:20,840 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:48:20,842 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 11:48:20,843 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 11:48:20,851 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 11:48:20,853 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 11:48:20,860 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:48:20,871 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:48:20,879 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 11:48:20,886 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 11:48:20,893 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 11:48:20,895 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 11:48:20,918 WARN L623 FunctionHandler]: Unknown extern function clk_get_rate [2022-12-14 11:48:20,924 WARN L623 FunctionHandler]: Unknown extern function clk_get_rate [2022-12-14 11:48:20,975 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 11:48:20,975 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 11:48:20,976 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:48:20,977 WARN L623 FunctionHandler]: Unknown extern function phy_start [2022-12-14 11:48:20,982 WARN L623 FunctionHandler]: Unknown extern function phy_stop [2022-12-14 11:48:20,983 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:48:20,983 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 11:48:21,002 WARN L623 FunctionHandler]: Unknown extern function phy_ethtool_gset [2022-12-14 11:48:21,007 WARN L623 FunctionHandler]: Unknown extern function phy_ethtool_sset [2022-12-14 11:48:21,021 WARN L623 FunctionHandler]: Unknown extern function phy_mii_ioctl [2022-12-14 11:48:21,026 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-12-14 11:48:21,027 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:48:21,028 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 11:48:21,029 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 11:48:21,029 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 11:48:21,029 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 11:48:21,030 WARN L623 FunctionHandler]: Unknown extern function devm_clk_get [2022-12-14 11:48:21,031 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:48:21,031 WARN L623 FunctionHandler]: Unknown extern function devm_clk_get [2022-12-14 11:48:21,032 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:48:21,032 WARN L623 FunctionHandler]: Unknown extern function devm_clk_get [2022-12-14 11:48:21,033 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:48:21,033 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:48:21,034 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:48:21,034 WARN L623 FunctionHandler]: Unknown extern function devm_ioremap [2022-12-14 11:48:21,035 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:48:21,035 WARN L623 FunctionHandler]: Unknown extern function platform_get_irq [2022-12-14 11:48:21,036 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:48:21,036 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 11:48:21,040 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:48:21,040 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 11:48:21,041 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:48:21,042 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:48:21,048 WARN L623 FunctionHandler]: Unknown extern function phy_disconnect [2022-12-14 11:48:21,048 WARN L623 FunctionHandler]: Unknown extern function mdiobus_unregister [2022-12-14 11:48:21,048 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:48:21,049 WARN L623 FunctionHandler]: Unknown extern function mdiobus_free [2022-12-14 11:48:21,054 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 11:48:21,054 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 11:48:21,060 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 11:48:21,282 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,283 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,283 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,283 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,284 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,284 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,284 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,284 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,284 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,284 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,285 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,285 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_ts_info [2022-12-14 11:48:21,286 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 11:48:21,286 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 11:48:21,287 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 11:48:21,287 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-12-14 11:48:21,288 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 11:48:21,290 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 11:48:21,290 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 11:48:21,292 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 11:48:21,292 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 11:48:21,296 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 11:48:21,306 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 11:48:21,310 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 11:48:21,311 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 11:48:21,311 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 11:48:21,312 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 11:48:21,312 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 11:48:21,312 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 11:48:21,312 WARN L623 FunctionHandler]: Unknown extern function platform_driver_probe [2022-12-14 11:48:21,313 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-12-14 11:48:21,341 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 11:48:21,341 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 11:48:21,349 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 11:48:21,425 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_e3d12feb-233b-47cf-a363-a0abe6c9d252/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[336326,336339] [2022-12-14 11:48:21,429 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,429 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,430 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,434 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,435 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,435 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,443 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,443 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,443 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,445 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,445 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,446 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,451 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:48:21,488 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:48:21,566 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 11:48:21,566 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 11:48:21,566 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 11:48:21,566 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 11:48:21,567 WARN L623 FunctionHandler]: Unknown extern function devm_pinctrl_get [2022-12-14 11:48:21,567 WARN L623 FunctionHandler]: Unknown extern function pinctrl_lookup_state [2022-12-14 11:48:21,568 WARN L623 FunctionHandler]: Unknown extern function devm_pinctrl_put [2022-12-14 11:48:21,568 WARN L623 FunctionHandler]: Unknown extern function pinctrl_select_state [2022-12-14 11:48:21,568 WARN L623 FunctionHandler]: Unknown extern function devm_pinctrl_put [2022-12-14 11:48:21,569 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,572 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 11:48:21,573 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-12-14 11:48:21,573 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-12-14 11:48:21,574 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-12-14 11:48:21,574 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-12-14 11:48:21,576 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-12-14 11:48:21,577 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 11:48:21,577 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-12-14 11:48:21,578 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-12-14 11:48:21,579 WARN L623 FunctionHandler]: Unknown extern function skb_tstamp_tx [2022-12-14 11:48:21,579 WARN L623 FunctionHandler]: Unknown extern function skb_clone_tx_timestamp [2022-12-14 11:48:21,580 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 11:48:21,580 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 11:48:21,581 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 11:48:21,582 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 11:48:21,582 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 11:48:21,583 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 11:48:21,583 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 11:48:21,584 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-12-14 11:48:21,584 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-12-14 11:48:21,585 WARN L623 FunctionHandler]: Unknown extern function gpio_to_desc [2022-12-14 11:48:21,585 WARN L623 FunctionHandler]: Unknown extern function gpiod_to_irq [2022-12-14 11:48:21,586 WARN L623 FunctionHandler]: Unknown extern function devm_request_threaded_irq [2022-12-14 11:48:21,587 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-12-14 11:48:21,587 WARN L623 FunctionHandler]: Unknown extern function mdiobus_alloc_size [2022-12-14 11:48:21,594 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:48:21,596 WARN L623 FunctionHandler]: Unknown extern function clk_round_rate [2022-12-14 11:48:21,597 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-12-14 11:48:21,597 WARN L623 FunctionHandler]: Unknown extern function clk_set_rate [2022-12-14 11:48:21,597 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:48:21,598 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:48:21,599 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-12-14 11:48:21,599 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:48:21,600 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 11:48:21,600 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:48:21,601 WARN L623 FunctionHandler]: Unknown extern function phy_find_first [2022-12-14 11:48:21,601 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:48:21,601 WARN L623 FunctionHandler]: Unknown extern function devm_gpio_request [2022-12-14 11:48:21,602 WARN L623 FunctionHandler]: Unknown extern function phy_connect_direct [2022-12-14 11:48:21,602 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:48:21,621 WARN L623 FunctionHandler]: Unknown extern function phy_find_first [2022-12-14 11:48:21,621 WARN L623 FunctionHandler]: Unknown extern function mdiobus_scan [2022-12-14 11:48:21,622 WARN L623 FunctionHandler]: Unknown extern function mdiobus_register [2022-12-14 11:48:21,623 WARN L623 FunctionHandler]: Unknown extern function mdiobus_unregister [2022-12-14 11:48:21,623 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:48:21,623 WARN L623 FunctionHandler]: Unknown extern function mdiobus_free [2022-12-14 11:48:21,624 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 11:48:21,625 WARN L623 FunctionHandler]: Unknown extern function usecs_to_jiffies [2022-12-14 11:48:21,626 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-12-14 11:48:21,626 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:48:21,627 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:48:21,628 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 11:48:21,631 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:48:21,631 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 11:48:21,633 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:48:21,634 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:48:21,635 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 11:48:21,635 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 11:48:21,635 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 11:48:21,637 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-12-14 11:48:21,638 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-12-14 11:48:21,638 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-12-14 11:48:21,643 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-12-14 11:48:21,645 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-12-14 11:48:21,646 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:48:21,647 WARN L623 FunctionHandler]: Unknown extern function trace_hardirqs_off [2022-12-14 11:48:21,647 WARN L623 FunctionHandler]: Unknown extern function trace_hardirqs_off [2022-12-14 11:48:21,648 WARN L623 FunctionHandler]: Unknown extern function trace_hardirqs_on [2022-12-14 11:48:21,648 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:48:21,649 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:48:21,650 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 11:48:21,650 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 11:48:21,653 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 11:48:21,654 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 11:48:21,655 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:48:21,656 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:48:21,661 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 11:48:21,663 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 11:48:21,665 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 11:48:21,666 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 11:48:21,673 WARN L623 FunctionHandler]: Unknown extern function clk_get_rate [2022-12-14 11:48:21,674 WARN L623 FunctionHandler]: Unknown extern function clk_get_rate [2022-12-14 11:48:21,685 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-12-14 11:48:21,685 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 11:48:21,686 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-12-14 11:48:21,690 WARN L623 FunctionHandler]: Unknown extern function phy_start [2022-12-14 11:48:21,690 WARN L623 FunctionHandler]: Unknown extern function phy_stop [2022-12-14 11:48:21,691 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 11:48:21,691 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 11:48:21,695 WARN L623 FunctionHandler]: Unknown extern function phy_ethtool_gset [2022-12-14 11:48:21,696 WARN L623 FunctionHandler]: Unknown extern function phy_ethtool_sset [2022-12-14 11:48:21,700 WARN L623 FunctionHandler]: Unknown extern function phy_mii_ioctl [2022-12-14 11:48:21,701 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-12-14 11:48:21,702 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:48:21,702 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 11:48:21,704 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 11:48:21,704 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 11:48:21,705 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 11:48:21,705 WARN L623 FunctionHandler]: Unknown extern function devm_clk_get [2022-12-14 11:48:21,706 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:48:21,706 WARN L623 FunctionHandler]: Unknown extern function devm_clk_get [2022-12-14 11:48:21,706 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:48:21,707 WARN L623 FunctionHandler]: Unknown extern function devm_clk_get [2022-12-14 11:48:21,707 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:48:21,708 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:48:21,708 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:48:21,709 WARN L623 FunctionHandler]: Unknown extern function devm_ioremap [2022-12-14 11:48:21,709 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:48:21,709 WARN L623 FunctionHandler]: Unknown extern function platform_get_irq [2022-12-14 11:48:21,710 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:48:21,710 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-12-14 11:48:21,727 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 11:48:21,728 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 11:48:21,728 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:48:21,728 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-12-14 11:48:21,730 WARN L623 FunctionHandler]: Unknown extern function phy_disconnect [2022-12-14 11:48:21,730 WARN L623 FunctionHandler]: Unknown extern function mdiobus_unregister [2022-12-14 11:48:21,730 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 11:48:21,730 WARN L623 FunctionHandler]: Unknown extern function mdiobus_free [2022-12-14 11:48:21,731 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-12-14 11:48:21,731 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 11:48:21,732 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-12-14 11:48:21,736 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,736 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,736 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,736 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,736 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,736 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,736 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,737 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,737 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,737 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,737 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,738 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_ts_info [2022-12-14 11:48:21,738 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-12-14 11:48:21,738 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 11:48:21,738 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 11:48:21,739 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-12-14 11:48:21,740 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 11:48:21,741 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 11:48:21,741 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 11:48:21,742 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 11:48:21,742 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 11:48:21,745 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 11:48:21,772 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-12-14 11:48:21,779 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-12-14 11:48:21,779 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-12-14 11:48:21,780 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 11:48:21,780 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 11:48:21,780 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 11:48:21,780 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-12-14 11:48:21,780 WARN L623 FunctionHandler]: Unknown extern function platform_driver_probe [2022-12-14 11:48:21,781 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-12-14 11:48:21,783 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-12-14 11:48:21,783 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 11:48:21,783 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 11:48:21,788 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_e3d12feb-233b-47cf-a363-a0abe6c9d252/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i[336326,336339] [2022-12-14 11:48:21,788 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,791 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,791 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,792 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,793 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,793 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,793 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,794 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,794 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,795 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,795 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,796 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 11:48:21,797 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:48:21,938 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:48:21,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:48:21 WrapperNode [2022-12-14 11:48:21,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:48:21,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:48:21,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:48:21,940 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:48:21,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:48:21" (1/1) ... [2022-12-14 11:48:21,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:48:21" (1/1) ... [2022-12-14 11:48:22,114 INFO L138 Inliner]: procedures = 426, calls = 2225, calls flagged for inlining = 256, calls inlined = 245, statements flattened = 6046 [2022-12-14 11:48:22,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:48:22,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:48:22,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:48:22,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:48:22,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:48:21" (1/1) ... [2022-12-14 11:48:22,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:48:21" (1/1) ... [2022-12-14 11:48:22,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:48:21" (1/1) ... [2022-12-14 11:48:22,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:48:21" (1/1) ... [2022-12-14 11:48:22,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:48:21" (1/1) ... [2022-12-14 11:48:22,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:48:21" (1/1) ... [2022-12-14 11:48:22,239 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:48:21" (1/1) ... [2022-12-14 11:48:22,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:48:21" (1/1) ... [2022-12-14 11:48:22,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:48:22,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:48:22,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:48:22,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:48:22,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:48:21" (1/1) ... [2022-12-14 11:48:22,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:48:22,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d12feb-233b-47cf-a363-a0abe6c9d252/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:48:22,333 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d12feb-233b-47cf-a363-a0abe6c9d252/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:48:22,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3d12feb-233b-47cf-a363-a0abe6c9d252/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:48:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 11:48:22,372 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 11:48:22,372 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-12-14 11:48:22,373 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-12-14 11:48:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-12-14 11:48:22,373 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-12-14 11:48:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 11:48:22,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 11:48:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_open_9_6 [2022-12-14 11:48:22,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_open_9_6 [2022-12-14 11:48:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-12-14 11:48:22,373 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-12-14 11:48:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-12-14 11:48:22,373 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-12-14 11:48:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-12-14 11:48:22,373 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-12-14 11:48:22,373 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_hwaddr [2022-12-14 11:48:22,373 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_hwaddr [2022-12-14 11:48:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_regs_len [2022-12-14 11:48:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_regs_len [2022-12-14 11:48:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-14 11:48:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-14 11:48:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure macb_probe [2022-12-14 11:48:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_probe [2022-12-14 11:48:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 11:48:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 11:48:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-12-14 11:48:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-12-14 11:48:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-12-14 11:48:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-12-14 11:48:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 11:48:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 11:48:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-12-14 11:48:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-12-14 11:48:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-12-14 11:48:22,375 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-12-14 11:48:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 11:48:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure macb_remove [2022-12-14 11:48:22,375 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_remove [2022-12-14 11:48:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-14 11:48:22,375 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-14 11:48:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-12-14 11:48:22,375 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-12-14 11:48:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 11:48:22,375 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 11:48:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 11:48:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure __napi_schedule [2022-12-14 11:48:22,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __napi_schedule [2022-12-14 11:48:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-12-14 11:48:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-12-14 11:48:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-12-14 11:48:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-12-14 11:48:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 11:48:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 11:48:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 11:48:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 11:48:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-12-14 11:48:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-12-14 11:48:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure macb_free_consistent [2022-12-14 11:48:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_free_consistent [2022-12-14 11:48:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 11:48:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 11:48:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2022-12-14 11:48:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2022-12-14 11:48:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-12-14 11:48:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-12-14 11:48:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure macb_open [2022-12-14 11:48:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_open [2022-12-14 11:48:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-12-14 11:48:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-12-14 11:48:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure macb_alloc_consistent [2022-12-14 11:48:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_alloc_consistent [2022-12-14 11:48:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure macb_resume [2022-12-14 11:48:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_resume [2022-12-14 11:48:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 11:48:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-12-14 11:48:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-12-14 11:48:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-12-14 11:48:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-12-14 11:48:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-12-14 11:48:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-12-14 11:48:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev [2022-12-14 11:48:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev [2022-12-14 11:48:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure macb_is_gem [2022-12-14 11:48:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_is_gem [2022-12-14 11:48:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-12-14 11:48:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-12-14 11:48:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:48:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 11:48:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 11:48:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure macb_rx_ring_wrap [2022-12-14 11:48:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_rx_ring_wrap [2022-12-14 11:48:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 11:48:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 11:48:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 11:48:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 11:48:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 11:48:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2022-12-14 11:48:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2022-12-14 11:48:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 11:48:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 11:48:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-12-14 11:48:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-12-14 11:48:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 11:48:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 11:48:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule_prep [2022-12-14 11:48:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule_prep [2022-12-14 11:48:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-12-14 11:48:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-12-14 11:48:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:48:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:48:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-12-14 11:48:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-12-14 11:48:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2022-12-14 11:48:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2022-12-14 11:48:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 11:48:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 11:48:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 11:48:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 11:48:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2022-12-14 11:48:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2022-12-14 11:48:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure phy_find_first [2022-12-14 11:48:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_find_first [2022-12-14 11:48:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-12-14 11:48:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-12-14 11:48:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_ring_wrap [2022-12-14 11:48:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_ring_wrap [2022-12-14 11:48:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-12-14 11:48:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-12-14 11:48:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_register_netdev_17 [2022-12-14 11:48:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_register_netdev_17 [2022-12-14 11:48:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure macb_get_hwaddr [2022-12-14 11:48:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_get_hwaddr [2022-12-14 11:48:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-12-14 11:48:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-12-14 11:48:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure macb_handle_link_change [2022-12-14 11:48:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_handle_link_change [2022-12-14 11:48:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mii_init [2022-12-14 11:48:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mii_init [2022-12-14 11:48:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_14 [2022-12-14 11:48:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_14 [2022-12-14 11:48:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_16 [2022-12-14 11:48:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_16 [2022-12-14 11:48:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_prepare_enable_15 [2022-12-14 11:48:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_prepare_enable_15 [2022-12-14 11:48:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure macb_close [2022-12-14 11:48:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_close [2022-12-14 11:48:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure macb_mdc_clk_div [2022-12-14 11:48:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_mdc_clk_div [2022-12-14 11:48:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-12-14 11:48:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-12-14 11:48:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-12-14 11:48:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-12-14 11:48:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_19 [2022-12-14 11:48:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_19 [2022-12-14 11:48:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 11:48:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_platdata [2022-12-14 11:48:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_platdata [2022-12-14 11:48:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-12-14 11:48:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-12-14 11:48:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-12-14 11:48:22,383 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-12-14 11:48:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_21 [2022-12-14 11:48:22,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_21 [2022-12-14 11:48:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 11:48:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_20 [2022-12-14 11:48:22,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_20 [2022-12-14 11:48:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure clk_get_rate [2022-12-14 11:48:22,383 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_get_rate [2022-12-14 11:48:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 11:48:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure macb_set_rx_mode [2022-12-14 11:48:22,383 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_set_rx_mode [2022-12-14 11:48:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_desc [2022-12-14 11:48:22,383 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_desc [2022-12-14 11:48:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-12-14 11:48:22,383 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-12-14 11:48:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-12-14 11:48:22,383 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-12-14 11:48:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure macb_reset_hw [2022-12-14 11:48:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_reset_hw [2022-12-14 11:48:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 11:48:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 11:48:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure macb_suspend [2022-12-14 11:48:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_suspend [2022-12-14 11:48:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure devm_clk_get [2022-12-14 11:48:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_clk_get [2022-12-14 11:48:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 11:48:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 11:48:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure macb_dbw [2022-12-14 11:48:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_dbw [2022-12-14 11:48:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 11:48:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 11:48:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-12-14 11:48:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-12-14 11:48:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-12-14 11:48:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-12-14 11:48:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-12-14 11:48:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-12-14 11:48:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure devm_pinctrl_put [2022-12-14 11:48:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_pinctrl_put [2022-12-14 11:48:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 11:48:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 11:48:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 11:48:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 11:48:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 11:48:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 11:48:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 11:48:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure gem_rx_refill [2022-12-14 11:48:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure gem_rx_refill [2022-12-14 11:48:22,385 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-12-14 11:48:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-12-14 11:48:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_dma [2022-12-14 11:48:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_dma [2022-12-14 11:48:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure macb_tx_skb [2022-12-14 11:48:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_tx_skb [2022-12-14 11:48:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure macb_interrupt [2022-12-14 11:48:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure macb_interrupt [2022-12-14 11:48:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-12-14 11:48:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-12-14 11:48:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure __readl [2022-12-14 11:48:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __readl [2022-12-14 11:48:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 11:48:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 11:48:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure __writel [2022-12-14 11:48:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure __writel [2022-12-14 11:48:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-12-14 11:48:22,386 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-12-14 11:48:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:48:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 11:48:22,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 11:48:22,387 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-12-14 11:48:22,387 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-12-14 11:48:23,040 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:48:23,043 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:48:23,104 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 11:48:28,717 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 11:48:28,793 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:48:29,726 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:48:29,726 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 11:48:29,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:48:29 BoogieIcfgContainer [2022-12-14 11:48:29,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:48:29,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:48:29,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:48:29,734 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:48:29,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:48:19" (1/3) ... [2022-12-14 11:48:29,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8408591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:48:29, skipping insertion in model container [2022-12-14 11:48:29,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:48:21" (2/3) ... [2022-12-14 11:48:29,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8408591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:48:29, skipping insertion in model container [2022-12-14 11:48:29,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:48:29" (3/3) ... [2022-12-14 11:48:29,736 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-cadence-macb.cil.i [2022-12-14 11:48:29,750 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:48:29,750 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 11:48:29,812 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:48:29,817 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@558f4653, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:48:29,817 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 11:48:29,824 INFO L276 IsEmpty]: Start isEmpty. Operand has 1610 states, 980 states have (on average 1.2948979591836736) internal successors, (1269), 998 states have internal predecessors, (1269), 522 states have call successors, (522), 108 states have call predecessors, (522), 107 states have return successors, (515), 510 states have call predecessors, (515), 515 states have call successors, (515) [2022-12-14 11:48:29,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-12-14 11:48:29,835 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:48:29,835 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 11:48:29,836 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:48:29,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:48:29,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1421981543, now seen corresponding path program 1 times [2022-12-14 11:48:29,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:48:29,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728633237] [2022-12-14 11:48:29,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:48:29,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:48:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:48:30,295 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2022-12-14 11:48:30,296 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:48:30,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728633237] [2022-12-14 11:48:30,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728633237] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:48:30,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:48:30,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:48:30,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424870187] [2022-12-14 11:48:30,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:48:30,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:48:30,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:48:30,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:48:30,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:48:30,328 INFO L87 Difference]: Start difference. First operand has 1610 states, 980 states have (on average 1.2948979591836736) internal successors, (1269), 998 states have internal predecessors, (1269), 522 states have call successors, (522), 108 states have call predecessors, (522), 107 states have return successors, (515), 510 states have call predecessors, (515), 515 states have call successors, (515) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-14 11:48:32,306 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 [] [2022-12-14 11:48:34,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:48:36,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:48:36,112 INFO L93 Difference]: Finished difference Result 4727 states and 6782 transitions. [2022-12-14 11:48:36,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:48:36,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (16), 2 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 127 [2022-12-14 11:48:36,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:48:36,142 INFO L225 Difference]: With dead ends: 4727 [2022-12-14 11:48:36,142 INFO L226 Difference]: Without dead ends: 3128 [2022-12-14 11:48:36,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:48:36,154 INFO L413 NwaCegarLoop]: 2463 mSDtfsCounter, 2226 mSDsluCounter, 1940 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2226 SdHoareTripleChecker+Valid, 4403 SdHoareTripleChecker+Invalid, 677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:48:36,155 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2226 Valid, 4403 Invalid, 677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-12-14 11:48:36,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3128 states. [2022-12-14 11:48:36,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3128 to 3128. [2022-12-14 11:48:36,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 1914 states have (on average 1.2920585161964473) internal successors, (2473), 1950 states have internal predecessors, (2473), 1002 states have call successors, (1002), 212 states have call predecessors, (1002), 211 states have return successors, (999), 989 states have call predecessors, (999), 999 states have call successors, (999) [2022-12-14 11:48:36,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 4474 transitions. [2022-12-14 11:48:36,343 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 4474 transitions. Word has length 127 [2022-12-14 11:48:36,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:48:36,344 INFO L495 AbstractCegarLoop]: Abstraction has 3128 states and 4474 transitions. [2022-12-14 11:48:36,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2022-12-14 11:48:36,344 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 4474 transitions. [2022-12-14 11:48:36,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2022-12-14 11:48:36,361 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:48:36,361 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 4, 4, 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] [2022-12-14 11:48:36,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:48:36,362 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:48:36,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:48:36,362 INFO L85 PathProgramCache]: Analyzing trace with hash 2076819318, now seen corresponding path program 1 times [2022-12-14 11:48:36,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:48:36,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094279972] [2022-12-14 11:48:36,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:48:36,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:48:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:48:36,856 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2022-12-14 11:48:36,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:48:36,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094279972] [2022-12-14 11:48:36,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094279972] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:48:36,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:48:36,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:48:36,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955296482] [2022-12-14 11:48:36,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:48:36,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:48:36,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:48:36,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:48:36,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:48:36,860 INFO L87 Difference]: Start difference. First operand 3128 states and 4474 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 11:48:38,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:48:42,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:48:43,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:48:43,249 INFO L93 Difference]: Finished difference Result 3134 states and 4479 transitions. [2022-12-14 11:48:43,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 11:48:43,250 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (22), 3 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 165 [2022-12-14 11:48:43,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:48:43,265 INFO L225 Difference]: With dead ends: 3134 [2022-12-14 11:48:43,265 INFO L226 Difference]: Without dead ends: 3132 [2022-12-14 11:48:43,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 11:48:43,268 INFO L413 NwaCegarLoop]: 1943 mSDtfsCounter, 2241 mSDsluCounter, 3881 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2244 SdHoareTripleChecker+Valid, 5824 SdHoareTripleChecker+Invalid, 1014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:48:43,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2244 Valid, 5824 Invalid, 1014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2022-12-14 11:48:43,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3132 states. [2022-12-14 11:48:43,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3132 to 3132. [2022-12-14 11:48:43,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3132 states, 1917 states have (on average 1.291601460615545) internal successors, (2476), 1953 states have internal predecessors, (2476), 1002 states have call successors, (1002), 213 states have call predecessors, (1002), 212 states have return successors, (999), 989 states have call predecessors, (999), 999 states have call successors, (999) [2022-12-14 11:48:43,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3132 states to 3132 states and 4477 transitions. [2022-12-14 11:48:43,386 INFO L78 Accepts]: Start accepts. Automaton has 3132 states and 4477 transitions. Word has length 165 [2022-12-14 11:48:43,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:48:43,386 INFO L495 AbstractCegarLoop]: Abstraction has 3132 states and 4477 transitions. [2022-12-14 11:48:43,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-12-14 11:48:43,386 INFO L276 IsEmpty]: Start isEmpty. Operand 3132 states and 4477 transitions. [2022-12-14 11:48:43,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-12-14 11:48:43,392 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:48:43,392 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 4, 4, 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] [2022-12-14 11:48:43,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 11:48:43,392 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:48:43,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:48:43,393 INFO L85 PathProgramCache]: Analyzing trace with hash 668998738, now seen corresponding path program 1 times [2022-12-14 11:48:43,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:48:43,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555580281] [2022-12-14 11:48:43,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:48:43,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:48:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:48:43,709 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2022-12-14 11:48:43,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:48:43,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555580281] [2022-12-14 11:48:43,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555580281] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:48:43,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:48:43,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:48:43,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891229133] [2022-12-14 11:48:43,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:48:43,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:48:43,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:48:43,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:48:43,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:48:43,712 INFO L87 Difference]: Start difference. First operand 3132 states and 4477 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 11:48:51,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:48:51,078 INFO L93 Difference]: Finished difference Result 6037 states and 8721 transitions. [2022-12-14 11:48:51,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 11:48:51,079 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (23), 3 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 170 [2022-12-14 11:48:51,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:48:51,110 INFO L225 Difference]: With dead ends: 6037 [2022-12-14 11:48:51,110 INFO L226 Difference]: Without dead ends: 6035 [2022-12-14 11:48:51,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 11:48:51,114 INFO L413 NwaCegarLoop]: 2484 mSDtfsCounter, 2140 mSDsluCounter, 6871 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2142 SdHoareTripleChecker+Valid, 9355 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:48:51,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2142 Valid, 9355 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1374 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-12-14 11:48:51,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6035 states. [2022-12-14 11:48:51,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6035 to 5989. [2022-12-14 11:48:51,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5989 states, 3666 states have (on average 1.2956901254773596) internal successors, (4750), 3754 states have internal predecessors, (4750), 1909 states have call successors, (1909), 415 states have call predecessors, (1909), 413 states have return successors, (1999), 1865 states have call predecessors, (1999), 1903 states have call successors, (1999) [2022-12-14 11:48:51,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5989 states to 5989 states and 8658 transitions. [2022-12-14 11:48:51,353 INFO L78 Accepts]: Start accepts. Automaton has 5989 states and 8658 transitions. Word has length 170 [2022-12-14 11:48:51,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:48:51,353 INFO L495 AbstractCegarLoop]: Abstraction has 5989 states and 8658 transitions. [2022-12-14 11:48:51,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-12-14 11:48:51,353 INFO L276 IsEmpty]: Start isEmpty. Operand 5989 states and 8658 transitions. [2022-12-14 11:48:51,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-12-14 11:48:51,359 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:48:51,360 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 6, 6, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:48:51,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 11:48:51,360 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:48:51,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:48:51,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1258168287, now seen corresponding path program 1 times [2022-12-14 11:48:51,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:48:51,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904098109] [2022-12-14 11:48:51,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:48:51,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:48:51,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:48:51,677 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 593 trivial. 0 not checked. [2022-12-14 11:48:51,677 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:48:51,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904098109] [2022-12-14 11:48:51,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904098109] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:48:51,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:48:51,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:48:51,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361047383] [2022-12-14 11:48:51,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:48:51,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:48:51,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:48:51,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:48:51,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:48:51,679 INFO L87 Difference]: Start difference. First operand 5989 states and 8658 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 11:48:53,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:48:55,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:48:58,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:49:00,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:49:00,379 INFO L93 Difference]: Finished difference Result 11661 states and 17123 transitions. [2022-12-14 11:49:00,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 11:49:00,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 184 [2022-12-14 11:49:00,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:49:00,419 INFO L225 Difference]: With dead ends: 11661 [2022-12-14 11:49:00,419 INFO L226 Difference]: Without dead ends: 11657 [2022-12-14 11:49:00,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 11:49:00,423 INFO L413 NwaCegarLoop]: 2483 mSDtfsCounter, 2124 mSDsluCounter, 6875 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2125 SdHoareTripleChecker+Valid, 9358 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:49:00,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2125 Valid, 9358 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1374 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2022-12-14 11:49:00,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11657 states. [2022-12-14 11:49:00,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11657 to 11591. [2022-12-14 11:49:00,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11591 states, 7104 states have (on average 1.2988457207207207) internal successors, (9227), 7293 states have internal predecessors, (9227), 3685 states have call successors, (3685), 812 states have call predecessors, (3685), 801 states have return successors, (4121), 3573 states have call predecessors, (4121), 3673 states have call successors, (4121) [2022-12-14 11:49:00,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11591 states to 11591 states and 17033 transitions. [2022-12-14 11:49:00,895 INFO L78 Accepts]: Start accepts. Automaton has 11591 states and 17033 transitions. Word has length 184 [2022-12-14 11:49:00,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:49:00,895 INFO L495 AbstractCegarLoop]: Abstraction has 11591 states and 17033 transitions. [2022-12-14 11:49:00,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-12-14 11:49:00,895 INFO L276 IsEmpty]: Start isEmpty. Operand 11591 states and 17033 transitions. [2022-12-14 11:49:00,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-12-14 11:49:00,902 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:49:00,902 INFO L195 NwaCegarLoop]: trace histogram [15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:49:00,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 11:49:00,903 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:49:00,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:49:00,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1300255378, now seen corresponding path program 1 times [2022-12-14 11:49:00,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:49:00,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31385881] [2022-12-14 11:49:00,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:49:00,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:49:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:49:01,206 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2022-12-14 11:49:01,206 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:49:01,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31385881] [2022-12-14 11:49:01,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31385881] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:49:01,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:49:01,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:49:01,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72744371] [2022-12-14 11:49:01,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:49:01,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:49:01,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:49:01,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:49:01,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:49:01,207 INFO L87 Difference]: Start difference. First operand 11591 states and 17033 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 11:49:03,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:49:07,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:49:08,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:49:10,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:49:10,062 INFO L93 Difference]: Finished difference Result 23157 states and 34815 transitions. [2022-12-14 11:49:10,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 11:49:10,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 180 [2022-12-14 11:49:10,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:49:10,174 INFO L225 Difference]: With dead ends: 23157 [2022-12-14 11:49:10,174 INFO L226 Difference]: Without dead ends: 23105 [2022-12-14 11:49:10,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 11:49:10,184 INFO L413 NwaCegarLoop]: 2485 mSDtfsCounter, 2263 mSDsluCounter, 6897 mSDsCounter, 0 mSdLazyCounter, 1342 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2263 SdHoareTripleChecker+Valid, 9382 SdHoareTripleChecker+Invalid, 1347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-12-14 11:49:10,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2263 Valid, 9382 Invalid, 1347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1342 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2022-12-14 11:49:10,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23105 states. [2022-12-14 11:49:11,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23105 to 23089. [2022-12-14 11:49:11,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23089 states, 14157 states have (on average 1.2994984813166632) internal successors, (18397), 14538 states have internal predecessors, (18397), 7339 states have call successors, (7339), 1614 states have call predecessors, (7339), 1592 states have return successors, (8998), 7112 states have call predecessors, (8998), 7318 states have call successors, (8998) [2022-12-14 11:49:11,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23089 states to 23089 states and 34734 transitions. [2022-12-14 11:49:11,314 INFO L78 Accepts]: Start accepts. Automaton has 23089 states and 34734 transitions. Word has length 180 [2022-12-14 11:49:11,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:49:11,314 INFO L495 AbstractCegarLoop]: Abstraction has 23089 states and 34734 transitions. [2022-12-14 11:49:11,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (25), 3 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-12-14 11:49:11,315 INFO L276 IsEmpty]: Start isEmpty. Operand 23089 states and 34734 transitions. [2022-12-14 11:49:11,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2022-12-14 11:49:11,338 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:49:11,339 INFO L195 NwaCegarLoop]: trace histogram [18, 11, 11, 11, 11, 11, 11, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:49:11,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 11:49:11,339 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:49:11,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:49:11,339 INFO L85 PathProgramCache]: Analyzing trace with hash 454606181, now seen corresponding path program 1 times [2022-12-14 11:49:11,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:49:11,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198029935] [2022-12-14 11:49:11,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:49:11,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:49:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:49:11,751 INFO L134 CoverageAnalysis]: Checked inductivity of 667 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2022-12-14 11:49:11,751 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:49:11,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198029935] [2022-12-14 11:49:11,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198029935] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:49:11,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:49:11,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:49:11,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407220373] [2022-12-14 11:49:11,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:49:11,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:49:11,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:49:11,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:49:11,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:49:11,754 INFO L87 Difference]: Start difference. First operand 23089 states and 34734 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 11:49:15,497 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 [] [2022-12-14 11:49:17,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:49:19,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:49:19,535 INFO L93 Difference]: Finished difference Result 65773 states and 97492 transitions. [2022-12-14 11:49:19,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:49:19,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 235 [2022-12-14 11:49:19,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:49:19,705 INFO L225 Difference]: With dead ends: 65773 [2022-12-14 11:49:19,705 INFO L226 Difference]: Without dead ends: 42707 [2022-12-14 11:49:19,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:49:19,798 INFO L413 NwaCegarLoop]: 2955 mSDtfsCounter, 2031 mSDsluCounter, 1893 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2031 SdHoareTripleChecker+Valid, 4848 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:49:19,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2031 Valid, 4848 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 831 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-12-14 11:49:19,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42707 states. [2022-12-14 11:49:21,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42707 to 42562. [2022-12-14 11:49:21,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42562 states, 25992 states have (on average 1.2825484764542936) internal successors, (33336), 26679 states have internal predecessors, (33336), 13485 states have call successors, (13485), 3072 states have call predecessors, (13485), 3084 states have return successors, (15374), 13162 states have call predecessors, (15374), 13464 states have call successors, (15374) [2022-12-14 11:49:21,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42562 states to 42562 states and 62195 transitions. [2022-12-14 11:49:21,809 INFO L78 Accepts]: Start accepts. Automaton has 42562 states and 62195 transitions. Word has length 235 [2022-12-14 11:49:21,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:49:21,810 INFO L495 AbstractCegarLoop]: Abstraction has 42562 states and 62195 transitions. [2022-12-14 11:49:21,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 11:49:21,810 INFO L276 IsEmpty]: Start isEmpty. Operand 42562 states and 62195 transitions. [2022-12-14 11:49:21,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-12-14 11:49:21,829 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:49:21,829 INFO L195 NwaCegarLoop]: trace histogram [19, 11, 11, 11, 11, 11, 11, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:49:21,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 11:49:21,829 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:49:21,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:49:21,830 INFO L85 PathProgramCache]: Analyzing trace with hash -912517624, now seen corresponding path program 1 times [2022-12-14 11:49:21,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:49:21,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926817395] [2022-12-14 11:49:21,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:49:21,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:49:21,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:49:22,015 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 713 trivial. 0 not checked. [2022-12-14 11:49:22,015 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:49:22,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926817395] [2022-12-14 11:49:22,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926817395] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:49:22,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:49:22,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:49:22,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927932758] [2022-12-14 11:49:22,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:49:22,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:49:22,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:49:22,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:49:22,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:49:22,018 INFO L87 Difference]: Start difference. First operand 42562 states and 62195 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-12-14 11:49:26,343 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 [] [2022-12-14 11:49:29,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:49:29,087 INFO L93 Difference]: Finished difference Result 80797 states and 117986 transitions. [2022-12-14 11:49:29,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:49:29,088 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 243 [2022-12-14 11:49:29,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:49:29,275 INFO L225 Difference]: With dead ends: 80797 [2022-12-14 11:49:29,275 INFO L226 Difference]: Without dead ends: 38258 [2022-12-14 11:49:29,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:49:29,429 INFO L413 NwaCegarLoop]: 3231 mSDtfsCounter, 2163 mSDsluCounter, 1922 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2163 SdHoareTripleChecker+Valid, 5153 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-12-14 11:49:29,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2163 Valid, 5153 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 848 Invalid, 1 Unknown, 0 Unchecked, 5.7s Time] [2022-12-14 11:49:29,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38258 states. [2022-12-14 11:49:31,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38258 to 38136. [2022-12-14 11:49:31,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38136 states, 23444 states have (on average 1.2815219245862481) internal successors, (30044), 24083 states have internal predecessors, (30044), 11870 states have call successors, (11870), 2826 states have call predecessors, (11870), 2821 states have return successors, (13598), 11544 states have call predecessors, (13598), 11849 states have call successors, (13598) [2022-12-14 11:49:31,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38136 states to 38136 states and 55512 transitions. [2022-12-14 11:49:31,195 INFO L78 Accepts]: Start accepts. Automaton has 38136 states and 55512 transitions. Word has length 243 [2022-12-14 11:49:31,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:49:31,195 INFO L495 AbstractCegarLoop]: Abstraction has 38136 states and 55512 transitions. [2022-12-14 11:49:31,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-12-14 11:49:31,196 INFO L276 IsEmpty]: Start isEmpty. Operand 38136 states and 55512 transitions. [2022-12-14 11:49:31,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-12-14 11:49:31,207 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:49:31,207 INFO L195 NwaCegarLoop]: trace histogram [19, 11, 11, 11, 11, 11, 11, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:49:31,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 11:49:31,208 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:49:31,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:49:31,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1374375795, now seen corresponding path program 1 times [2022-12-14 11:49:31,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:49:31,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297645222] [2022-12-14 11:49:31,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:49:31,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:49:31,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:49:31,481 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 720 trivial. 0 not checked. [2022-12-14 11:49:31,482 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:49:31,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297645222] [2022-12-14 11:49:31,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297645222] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:49:31,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:49:31,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:49:31,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561122157] [2022-12-14 11:49:31,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:49:31,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:49:31,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:49:31,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:49:31,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:49:31,484 INFO L87 Difference]: Start difference. First operand 38136 states and 55512 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-12-14 11:49:35,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:49:37,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:49:41,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:49:41,361 INFO L93 Difference]: Finished difference Result 91789 states and 133792 transitions. [2022-12-14 11:49:41,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:49:41,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 260 [2022-12-14 11:49:41,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:49:41,592 INFO L225 Difference]: With dead ends: 91789 [2022-12-14 11:49:41,592 INFO L226 Difference]: Without dead ends: 54223 [2022-12-14 11:49:41,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:49:41,711 INFO L413 NwaCegarLoop]: 3784 mSDtfsCounter, 2160 mSDsluCounter, 1918 mSDsCounter, 0 mSdLazyCounter, 1015 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2160 SdHoareTripleChecker+Valid, 5702 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1015 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:49:41,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2160 Valid, 5702 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1015 Invalid, 1 Unknown, 0 Unchecked, 8.2s Time] [2022-12-14 11:49:41,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54223 states. [2022-12-14 11:49:43,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54223 to 54101. [2022-12-14 11:49:43,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54101 states, 33346 states have (on average 1.281982846518323) internal successors, (42749), 34261 states have internal predecessors, (42749), 16745 states have call successors, (16745), 4021 states have call predecessors, (16745), 4009 states have return successors, (19267), 16272 states have call predecessors, (19267), 16724 states have call successors, (19267) [2022-12-14 11:49:44,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54101 states to 54101 states and 78761 transitions. [2022-12-14 11:49:44,119 INFO L78 Accepts]: Start accepts. Automaton has 54101 states and 78761 transitions. Word has length 260 [2022-12-14 11:49:44,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:49:44,119 INFO L495 AbstractCegarLoop]: Abstraction has 54101 states and 78761 transitions. [2022-12-14 11:49:44,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-12-14 11:49:44,120 INFO L276 IsEmpty]: Start isEmpty. Operand 54101 states and 78761 transitions. [2022-12-14 11:49:44,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-12-14 11:49:44,133 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:49:44,133 INFO L195 NwaCegarLoop]: trace histogram [21, 11, 11, 11, 11, 11, 11, 8, 8, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:49:44,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 11:49:44,134 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:49:44,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:49:44,134 INFO L85 PathProgramCache]: Analyzing trace with hash 2095483824, now seen corresponding path program 1 times [2022-12-14 11:49:44,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:49:44,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455400201] [2022-12-14 11:49:44,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:49:44,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:49:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:49:44,385 INFO L134 CoverageAnalysis]: Checked inductivity of 888 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 854 trivial. 0 not checked. [2022-12-14 11:49:44,385 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:49:44,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455400201] [2022-12-14 11:49:44,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455400201] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:49:44,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:49:44,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:49:44,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179787366] [2022-12-14 11:49:44,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:49:44,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:49:44,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:49:44,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:49:44,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:49:44,386 INFO L87 Difference]: Start difference. First operand 54101 states and 78761 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-12-14 11:49:53,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:49:53,111 INFO L93 Difference]: Finished difference Result 127197 states and 184499 transitions. [2022-12-14 11:49:53,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:49:53,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 296 [2022-12-14 11:49:53,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:49:53,388 INFO L225 Difference]: With dead ends: 127197 [2022-12-14 11:49:53,389 INFO L226 Difference]: Without dead ends: 73666 [2022-12-14 11:49:53,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:49:53,547 INFO L413 NwaCegarLoop]: 3697 mSDtfsCounter, 2049 mSDsluCounter, 1891 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2049 SdHoareTripleChecker+Valid, 5588 SdHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:49:53,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2049 Valid, 5588 Invalid, 1052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1024 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-12-14 11:49:53,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73666 states. [2022-12-14 11:49:56,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73666 to 73537. [2022-12-14 11:49:56,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73537 states, 45425 states have (on average 1.2771601541001651) internal successors, (58015), 46640 states have internal predecessors, (58015), 22532 states have call successors, (22532), 5574 states have call predecessors, (22532), 5579 states have return successors, (25169), 21960 states have call predecessors, (25169), 22511 states have call successors, (25169) [2022-12-14 11:49:56,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73537 states to 73537 states and 105716 transitions. [2022-12-14 11:49:56,624 INFO L78 Accepts]: Start accepts. Automaton has 73537 states and 105716 transitions. Word has length 296 [2022-12-14 11:49:56,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:49:56,625 INFO L495 AbstractCegarLoop]: Abstraction has 73537 states and 105716 transitions. [2022-12-14 11:49:56,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-12-14 11:49:56,626 INFO L276 IsEmpty]: Start isEmpty. Operand 73537 states and 105716 transitions. [2022-12-14 11:49:56,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-12-14 11:49:56,652 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:49:56,652 INFO L195 NwaCegarLoop]: trace histogram [23, 11, 11, 11, 11, 11, 11, 8, 8, 6, 6, 6, 4, 4, 4, 4, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:49:56,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 11:49:56,653 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:49:56,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:49:56,653 INFO L85 PathProgramCache]: Analyzing trace with hash -754417359, now seen corresponding path program 1 times [2022-12-14 11:49:56,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:49:56,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457084816] [2022-12-14 11:49:56,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:49:56,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:49:56,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:49:57,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1007 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 958 trivial. 0 not checked. [2022-12-14 11:49:57,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:49:57,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457084816] [2022-12-14 11:49:57,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457084816] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:49:57,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:49:57,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:49:57,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737090332] [2022-12-14 11:49:57,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:49:57,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:49:57,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:49:57,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:49:57,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:49:57,026 INFO L87 Difference]: Start difference. First operand 73537 states and 105716 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) [2022-12-14 11:49:59,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:50:01,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:50:03,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:50:06,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:50:12,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:50:12,351 INFO L93 Difference]: Finished difference Result 165349 states and 237017 transitions. [2022-12-14 11:50:12,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 11:50:12,351 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) Word has length 339 [2022-12-14 11:50:12,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:50:12,701 INFO L225 Difference]: With dead ends: 165349 [2022-12-14 11:50:12,701 INFO L226 Difference]: Without dead ends: 92382 [2022-12-14 11:50:12,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:50:12,905 INFO L413 NwaCegarLoop]: 3696 mSDtfsCounter, 2017 mSDsluCounter, 9281 mSDsCounter, 0 mSdLazyCounter, 2219 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2017 SdHoareTripleChecker+Valid, 12977 SdHoareTripleChecker+Invalid, 2222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2219 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:50:12,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2017 Valid, 12977 Invalid, 2222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2219 Invalid, 2 Unknown, 0 Unchecked, 12.5s Time] [2022-12-14 11:50:12,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92382 states. [2022-12-14 11:50:16,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92382 to 92205. [2022-12-14 11:50:16,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92205 states, 56760 states have (on average 1.2766913319238902) internal successors, (72465), 58275 states have internal predecessors, (72465), 28295 states have call successors, (28295), 7103 states have call predecessors, (28295), 7149 states have return successors, (31071), 27648 states have call predecessors, (31071), 28274 states have call successors, (31071) [2022-12-14 11:50:16,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92205 states to 92205 states and 131831 transitions. [2022-12-14 11:50:16,423 INFO L78 Accepts]: Start accepts. Automaton has 92205 states and 131831 transitions. Word has length 339 [2022-12-14 11:50:16,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:50:16,424 INFO L495 AbstractCegarLoop]: Abstraction has 92205 states and 131831 transitions. [2022-12-14 11:50:16,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) [2022-12-14 11:50:16,424 INFO L276 IsEmpty]: Start isEmpty. Operand 92205 states and 131831 transitions. [2022-12-14 11:50:16,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2022-12-14 11:50:16,446 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:50:16,447 INFO L195 NwaCegarLoop]: trace histogram [23, 11, 11, 11, 11, 11, 11, 8, 8, 6, 6, 6, 4, 4, 4, 4, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:50:16,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 11:50:16,447 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:50:16,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:50:16,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1316364298, now seen corresponding path program 1 times [2022-12-14 11:50:16,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:50:16,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795271638] [2022-12-14 11:50:16,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:50:16,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:50:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:50:17,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1007 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 958 trivial. 0 not checked. [2022-12-14 11:50:17,012 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:50:17,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795271638] [2022-12-14 11:50:17,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795271638] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:50:17,012 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:50:17,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:50:17,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487213666] [2022-12-14 11:50:17,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:50:17,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:50:17,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:50:17,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:50:17,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:50:17,015 INFO L87 Difference]: Start difference. First operand 92205 states and 131831 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) [2022-12-14 11:50:19,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:50:21,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:50:23,961 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 [] [2022-12-14 11:50:33,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:50:33,903 INFO L93 Difference]: Finished difference Result 221651 states and 315814 transitions. [2022-12-14 11:50:33,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 11:50:33,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) Word has length 340 [2022-12-14 11:50:33,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:50:34,407 INFO L225 Difference]: With dead ends: 221651 [2022-12-14 11:50:34,407 INFO L226 Difference]: Without dead ends: 130016 [2022-12-14 11:50:34,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 11:50:34,707 INFO L413 NwaCegarLoop]: 2411 mSDtfsCounter, 2231 mSDsluCounter, 6569 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 30 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2231 SdHoareTripleChecker+Valid, 8980 SdHoareTripleChecker+Invalid, 1437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:50:34,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2231 Valid, 8980 Invalid, 1437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1405 Invalid, 2 Unknown, 0 Unchecked, 12.2s Time] [2022-12-14 11:50:34,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130016 states. [2022-12-14 11:50:39,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130016 to 129791. [2022-12-14 11:50:39,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129791 states, 79558 states have (on average 1.2766660800925111) internal successors, (101569), 81675 states have internal predecessors, (101569), 39933 states have call successors, (39933), 10227 states have call predecessors, (39933), 10299 states have return successors, (42963), 39078 states have call predecessors, (42963), 39912 states have call successors, (42963) [2022-12-14 11:50:40,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129791 states to 129791 states and 184465 transitions. [2022-12-14 11:50:40,498 INFO L78 Accepts]: Start accepts. Automaton has 129791 states and 184465 transitions. Word has length 340 [2022-12-14 11:50:40,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:50:40,499 INFO L495 AbstractCegarLoop]: Abstraction has 129791 states and 184465 transitions. [2022-12-14 11:50:40,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 4 states have internal predecessors, (136), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) [2022-12-14 11:50:40,500 INFO L276 IsEmpty]: Start isEmpty. Operand 129791 states and 184465 transitions. [2022-12-14 11:50:40,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2022-12-14 11:50:40,543 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:50:40,544 INFO L195 NwaCegarLoop]: trace histogram [23, 11, 11, 11, 11, 11, 11, 8, 8, 6, 6, 6, 4, 4, 4, 4, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:50:40,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 11:50:40,544 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:50:40,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:50:40,544 INFO L85 PathProgramCache]: Analyzing trace with hash 526867149, now seen corresponding path program 1 times [2022-12-14 11:50:40,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:50:40,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030358685] [2022-12-14 11:50:40,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:50:40,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:50:40,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:50:41,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1007 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 958 trivial. 0 not checked. [2022-12-14 11:50:41,224 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:50:41,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030358685] [2022-12-14 11:50:41,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030358685] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:50:41,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:50:41,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:50:41,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783564296] [2022-12-14 11:50:41,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:50:41,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:50:41,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:50:41,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:50:41,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:50:41,227 INFO L87 Difference]: Start difference. First operand 129791 states and 184465 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) [2022-12-14 11:50:43,470 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 [] [2022-12-14 11:50:55,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:50:55,652 INFO L93 Difference]: Finished difference Result 334455 states and 473800 transitions. [2022-12-14 11:50:55,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 11:50:55,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) Word has length 341 [2022-12-14 11:50:55,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:50:56,603 INFO L225 Difference]: With dead ends: 334455 [2022-12-14 11:50:56,603 INFO L226 Difference]: Without dead ends: 205234 [2022-12-14 11:50:56,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 11:50:56,968 INFO L413 NwaCegarLoop]: 2411 mSDtfsCounter, 2230 mSDsluCounter, 6569 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2230 SdHoareTripleChecker+Valid, 8980 SdHoareTripleChecker+Invalid, 1435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-12-14 11:50:56,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2230 Valid, 8980 Invalid, 1435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1404 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-12-14 11:50:57,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205234 states. [2022-12-14 11:51:05,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205234 to 185483. [2022-12-14 11:51:05,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185483 states, 113299 states have (on average 1.2767544285474717) internal successors, (144655), 116316 states have internal predecessors, (144655), 57222 states have call successors, (57222), 14814 states have call predecessors, (57222), 14961 states have return successors, (60621), 56094 states have call predecessors, (60621), 57201 states have call successors, (60621) [2022-12-14 11:51:06,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185483 states to 185483 states and 262498 transitions. [2022-12-14 11:51:06,423 INFO L78 Accepts]: Start accepts. Automaton has 185483 states and 262498 transitions. Word has length 341 [2022-12-14 11:51:06,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:51:06,424 INFO L495 AbstractCegarLoop]: Abstraction has 185483 states and 262498 transitions. [2022-12-14 11:51:06,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) [2022-12-14 11:51:06,424 INFO L276 IsEmpty]: Start isEmpty. Operand 185483 states and 262498 transitions. [2022-12-14 11:51:06,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2022-12-14 11:51:06,462 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:51:06,462 INFO L195 NwaCegarLoop]: trace histogram [23, 11, 11, 11, 11, 11, 11, 8, 8, 6, 6, 6, 4, 4, 4, 4, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:51:06,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 11:51:06,462 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:51:06,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:51:06,463 INFO L85 PathProgramCache]: Analyzing trace with hash 491404477, now seen corresponding path program 1 times [2022-12-14 11:51:06,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:51:06,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622185761] [2022-12-14 11:51:06,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:51:06,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:51:06,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:51:06,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1007 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 958 trivial. 0 not checked. [2022-12-14 11:51:06,861 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:51:06,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622185761] [2022-12-14 11:51:06,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622185761] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:51:06,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:51:06,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:51:06,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056578856] [2022-12-14 11:51:06,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:51:06,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:51:06,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:51:06,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:51:06,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:51:06,864 INFO L87 Difference]: Start difference. First operand 185483 states and 262498 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) [2022-12-14 11:51:10,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:51:14,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:51:23,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:51:23,299 INFO L93 Difference]: Finished difference Result 407933 states and 576864 transitions. [2022-12-14 11:51:23,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 11:51:23,299 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) Word has length 342 [2022-12-14 11:51:23,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:51:24,344 INFO L225 Difference]: With dead ends: 407933 [2022-12-14 11:51:24,344 INFO L226 Difference]: Without dead ends: 223020 [2022-12-14 11:51:24,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 11:51:24,834 INFO L413 NwaCegarLoop]: 2409 mSDtfsCounter, 2231 mSDsluCounter, 6565 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2231 SdHoareTripleChecker+Valid, 8974 SdHoareTripleChecker+Invalid, 1435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-12-14 11:51:24,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2231 Valid, 8974 Invalid, 1435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1405 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2022-12-14 11:51:25,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223020 states. [2022-12-14 11:51:32,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223020 to 185411. [2022-12-14 11:51:32,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185411 states, 113251 states have (on average 1.2768717274019656) internal successors, (144607), 116268 states have internal predecessors, (144607), 57222 states have call successors, (57222), 14814 states have call predecessors, (57222), 14937 states have return successors, (60597), 56070 states have call predecessors, (60597), 57201 states have call successors, (60597) [2022-12-14 11:51:33,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185411 states to 185411 states and 262426 transitions. [2022-12-14 11:51:33,601 INFO L78 Accepts]: Start accepts. Automaton has 185411 states and 262426 transitions. Word has length 342 [2022-12-14 11:51:33,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:51:33,601 INFO L495 AbstractCegarLoop]: Abstraction has 185411 states and 262426 transitions. [2022-12-14 11:51:33,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) [2022-12-14 11:51:33,602 INFO L276 IsEmpty]: Start isEmpty. Operand 185411 states and 262426 transitions. [2022-12-14 11:51:33,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2022-12-14 11:51:33,639 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:51:33,639 INFO L195 NwaCegarLoop]: trace histogram [23, 11, 11, 11, 11, 11, 11, 8, 8, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:51:33,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 11:51:33,639 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:51:33,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:51:33,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1677264348, now seen corresponding path program 1 times [2022-12-14 11:51:33,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:51:33,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386317692] [2022-12-14 11:51:33,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:51:33,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:51:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:51:33,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1019 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 958 trivial. 0 not checked. [2022-12-14 11:51:33,876 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:51:33,876 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386317692] [2022-12-14 11:51:33,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386317692] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:51:33,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:51:33,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:51:33,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545667339] [2022-12-14 11:51:33,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:51:33,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:51:33,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:51:33,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:51:33,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:51:33,877 INFO L87 Difference]: Start difference. First operand 185411 states and 262426 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) [2022-12-14 11:51:37,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:51:42,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:51:55,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:51:55,539 INFO L93 Difference]: Finished difference Result 414150 states and 585840 transitions. [2022-12-14 11:51:55,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 11:51:55,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) Word has length 352 [2022-12-14 11:51:55,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:51:56,572 INFO L225 Difference]: With dead ends: 414150 [2022-12-14 11:51:56,572 INFO L226 Difference]: Without dead ends: 229309 [2022-12-14 11:51:57,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:51:57,146 INFO L413 NwaCegarLoop]: 3497 mSDtfsCounter, 2038 mSDsluCounter, 8875 mSDsCounter, 0 mSdLazyCounter, 2187 mSolverCounterSat, 21 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2038 SdHoareTripleChecker+Valid, 12372 SdHoareTripleChecker+Invalid, 2209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2187 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:51:57,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2038 Valid, 12372 Invalid, 2209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 2187 Invalid, 1 Unknown, 0 Unchecked, 13.1s Time] [2022-12-14 11:51:57,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229309 states. [2022-12-14 11:52:06,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229309 to 229132. [2022-12-14 11:52:07,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229132 states, 139532 states have (on average 1.2719662873032709) internal successors, (177480), 143245 states have internal predecessors, (177480), 70944 states have call successors, (70944), 18512 states have call predecessors, (70944), 18655 states have return successors, (75040), 69516 states have call predecessors, (75040), 70923 states have call successors, (75040) [2022-12-14 11:52:08,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229132 states to 229132 states and 323464 transitions. [2022-12-14 11:52:08,126 INFO L78 Accepts]: Start accepts. Automaton has 229132 states and 323464 transitions. Word has length 352 [2022-12-14 11:52:08,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:52:08,127 INFO L495 AbstractCegarLoop]: Abstraction has 229132 states and 323464 transitions. [2022-12-14 11:52:08,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) [2022-12-14 11:52:08,127 INFO L276 IsEmpty]: Start isEmpty. Operand 229132 states and 323464 transitions. [2022-12-14 11:52:08,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-12-14 11:52:08,167 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:52:08,167 INFO L195 NwaCegarLoop]: trace histogram [23, 11, 11, 11, 11, 11, 11, 8, 8, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:52:08,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 11:52:08,168 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:52:08,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:52:08,168 INFO L85 PathProgramCache]: Analyzing trace with hash -362449463, now seen corresponding path program 1 times [2022-12-14 11:52:08,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:52:08,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121856313] [2022-12-14 11:52:08,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:52:08,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:52:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:52:08,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1013 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 958 trivial. 0 not checked. [2022-12-14 11:52:08,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:52:08,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121856313] [2022-12-14 11:52:08,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121856313] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:52:08,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:52:08,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:52:08,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666062280] [2022-12-14 11:52:08,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:52:08,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:52:08,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:52:08,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:52:08,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:52:08,400 INFO L87 Difference]: Start difference. First operand 229132 states and 323464 transitions. Second operand has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) [2022-12-14 11:52:10,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:52:12,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:52:26,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:52:26,217 INFO L93 Difference]: Finished difference Result 501544 states and 707940 transitions. [2022-12-14 11:52:26,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 11:52:26,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) Word has length 347 [2022-12-14 11:52:26,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:52:27,455 INFO L225 Difference]: With dead ends: 501544 [2022-12-14 11:52:27,455 INFO L226 Difference]: Without dead ends: 272982 [2022-12-14 11:52:28,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:52:28,066 INFO L413 NwaCegarLoop]: 3699 mSDtfsCounter, 2035 mSDsluCounter, 9285 mSDsCounter, 0 mSdLazyCounter, 2279 mSolverCounterSat, 24 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2035 SdHoareTripleChecker+Valid, 12984 SdHoareTripleChecker+Invalid, 2305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2279 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-12-14 11:52:28,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2035 Valid, 12984 Invalid, 2305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2279 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-12-14 11:52:28,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272982 states. [2022-12-14 11:52:39,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272982 to 272805. [2022-12-14 11:52:39,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272805 states, 165789 states have (on average 1.2686547358389277) internal successors, (210329), 170198 states have internal predecessors, (210329), 84666 states have call successors, (84666), 22210 states have call predecessors, (84666), 22349 states have return successors, (89459), 82938 states have call predecessors, (89459), 84645 states have call successors, (89459) [2022-12-14 11:52:40,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272805 states to 272805 states and 384454 transitions. [2022-12-14 11:52:40,625 INFO L78 Accepts]: Start accepts. Automaton has 272805 states and 384454 transitions. Word has length 347 [2022-12-14 11:52:40,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:52:40,625 INFO L495 AbstractCegarLoop]: Abstraction has 272805 states and 384454 transitions. [2022-12-14 11:52:40,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.6) internal successors, (143), 4 states have internal predecessors, (143), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) [2022-12-14 11:52:40,626 INFO L276 IsEmpty]: Start isEmpty. Operand 272805 states and 384454 transitions. [2022-12-14 11:52:40,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-12-14 11:52:40,833 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:52:40,833 INFO L195 NwaCegarLoop]: trace histogram [23, 11, 11, 11, 11, 11, 11, 8, 8, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:52:40,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 11:52:40,834 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:52:40,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:52:40,834 INFO L85 PathProgramCache]: Analyzing trace with hash -436771733, now seen corresponding path program 1 times [2022-12-14 11:52:40,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:52:40,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433045809] [2022-12-14 11:52:40,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:52:40,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:52:40,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:52:41,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1019 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 958 trivial. 0 not checked. [2022-12-14 11:52:41,195 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:52:41,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433045809] [2022-12-14 11:52:41,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433045809] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:52:41,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:52:41,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 11:52:41,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141396833] [2022-12-14 11:52:41,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:52:41,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 11:52:41,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:52:41,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 11:52:41,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:52:41,197 INFO L87 Difference]: Start difference. First operand 272805 states and 384454 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) [2022-12-14 11:52:46,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 11:53:06,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:53:06,076 INFO L93 Difference]: Finished difference Result 588962 states and 830040 transitions. [2022-12-14 11:53:06,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 11:53:06,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) Word has length 354 [2022-12-14 11:53:06,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:53:07,661 INFO L225 Difference]: With dead ends: 588962 [2022-12-14 11:53:07,661 INFO L226 Difference]: Without dead ends: 316727 [2022-12-14 11:53:08,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 11:53:08,454 INFO L413 NwaCegarLoop]: 3703 mSDtfsCounter, 2034 mSDsluCounter, 9293 mSDsCounter, 0 mSdLazyCounter, 2302 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2034 SdHoareTripleChecker+Valid, 12996 SdHoareTripleChecker+Invalid, 2328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-12-14 11:53:08,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2034 Valid, 12996 Invalid, 2328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2302 Invalid, 0 Unknown, 0 Unchecked, 12.1s Time] [2022-12-14 11:53:08,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316727 states. [2022-12-14 11:53:21,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316727 to 316550. [2022-12-14 11:53:21,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316550 states, 192118 states have (on average 1.2661489293038652) internal successors, (243250), 197223 states have internal predecessors, (243250), 98388 states have call successors, (98388), 25908 states have call predecessors, (98388), 26043 states have return successors, (103878), 96360 states have call predecessors, (103878), 98367 states have call successors, (103878) [2022-12-14 11:53:23,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316550 states to 316550 states and 445516 transitions. [2022-12-14 11:53:23,172 INFO L78 Accepts]: Start accepts. Automaton has 316550 states and 445516 transitions. Word has length 354 [2022-12-14 11:53:23,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:53:23,173 INFO L495 AbstractCegarLoop]: Abstraction has 316550 states and 445516 transitions. [2022-12-14 11:53:23,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 3 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (41), 4 states have call predecessors, (41), 3 states have call successors, (41) [2022-12-14 11:53:23,173 INFO L276 IsEmpty]: Start isEmpty. Operand 316550 states and 445516 transitions. [2022-12-14 11:53:23,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2022-12-14 11:53:23,238 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:53:23,239 INFO L195 NwaCegarLoop]: trace histogram [23, 11, 11, 11, 11, 11, 11, 8, 8, 6, 6, 6, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:53:23,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 11:53:23,239 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:53:23,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:53:23,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1604148931, now seen corresponding path program 1 times [2022-12-14 11:53:23,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:53:23,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669785732] [2022-12-14 11:53:23,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:53:23,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:53:23,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:53:23,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1028 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 965 trivial. 0 not checked. [2022-12-14 11:53:23,683 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:53:23,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669785732] [2022-12-14 11:53:23,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669785732] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:53:23,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:53:23,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 11:53:23,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796953778] [2022-12-14 11:53:23,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:53:23,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 11:53:23,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:53:23,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 11:53:23,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:53:23,686 INFO L87 Difference]: Start difference. First operand 316550 states and 445516 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-12-14 11:53:27,607 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 [] [2022-12-14 11:53:29,997 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 [] [2022-12-14 11:53:48,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:53:48,822 INFO L93 Difference]: Finished difference Result 739891 states and 1041493 transitions. [2022-12-14 11:53:48,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 11:53:48,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 372 [2022-12-14 11:53:48,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:53:50,776 INFO L225 Difference]: With dead ends: 739891 [2022-12-14 11:53:50,777 INFO L226 Difference]: Without dead ends: 423911 [2022-12-14 11:53:51,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 11:53:51,734 INFO L413 NwaCegarLoop]: 3604 mSDtfsCounter, 2173 mSDsluCounter, 1913 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2173 SdHoareTripleChecker+Valid, 5517 SdHoareTripleChecker+Invalid, 987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-12-14 11:53:51,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2173 Valid, 5517 Invalid, 987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 973 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2022-12-14 11:53:52,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423911 states. [2022-12-14 11:54:09,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423911 to 423709. [2022-12-14 11:54:09,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423709 states, 257142 states have (on average 1.266374221247404) internal successors, (325638), 264170 states have internal predecessors, (325638), 131581 states have call successors, (131581), 34845 states have call predecessors, (131581), 34985 states have return successors, (138471), 128731 states have call predecessors, (138471), 131560 states have call successors, (138471) [2022-12-14 11:54:12,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423709 states to 423709 states and 595690 transitions. [2022-12-14 11:54:12,068 INFO L78 Accepts]: Start accepts. Automaton has 423709 states and 595690 transitions. Word has length 372 [2022-12-14 11:54:12,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:54:12,069 INFO L495 AbstractCegarLoop]: Abstraction has 423709 states and 595690 transitions. [2022-12-14 11:54:12,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-12-14 11:54:12,069 INFO L276 IsEmpty]: Start isEmpty. Operand 423709 states and 595690 transitions. [2022-12-14 11:54:12,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2022-12-14 11:54:12,128 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:54:12,128 INFO L195 NwaCegarLoop]: trace histogram [27, 17, 17, 17, 17, 17, 17, 9, 9, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:54:12,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 11:54:12,128 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:54:12,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:54:12,129 INFO L85 PathProgramCache]: Analyzing trace with hash 941354193, now seen corresponding path program 1 times [2022-12-14 11:54:12,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:54:12,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758599919] [2022-12-14 11:54:12,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:54:12,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:54:12,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:54:13,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1729 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1725 trivial. 0 not checked. [2022-12-14 11:54:13,283 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 11:54:13,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758599919] [2022-12-14 11:54:13,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758599919] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:54:13,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:54:13,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-14 11:54:13,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122225025] [2022-12-14 11:54:13,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:54:13,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 11:54:13,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 11:54:13,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 11:54:13,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-14 11:54:13,285 INFO L87 Difference]: Start difference. First operand 423709 states and 595690 transitions. Second operand has 10 states, 9 states have (on average 12.444444444444445) internal successors, (112), 8 states have internal predecessors, (112), 4 states have call successors, (54), 4 states have call predecessors, (54), 3 states have return successors, (52), 5 states have call predecessors, (52), 4 states have call successors, (52)