./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-ethoc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab83d07-7008-443f-b0df-4a986723a2bf/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab83d07-7008-443f-b0df-4a986723a2bf/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab83d07-7008-443f-b0df-4a986723a2bf/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab83d07-7008-443f-b0df-4a986723a2bf/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-ethoc.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab83d07-7008-443f-b0df-4a986723a2bf/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab83d07-7008-443f-b0df-4a986723a2bf/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2d96d66163c8e8d61a2fa90f8dc8359a87f83533e82cd74c25a40ad0f5e1f460 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:55:10,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:55:10,217 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:55:10,261 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:55:10,261 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:55:10,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:55:10,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:55:10,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:55:10,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:55:10,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:55:10,282 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:55:10,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:55:10,285 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:55:10,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:55:10,289 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:55:10,291 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:55:10,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:55:10,293 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:55:10,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:55:10,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:55:10,304 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:55:10,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:55:10,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:55:10,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:55:10,327 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:55:10,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:55:10,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:55:10,329 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:55:10,330 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:55:10,331 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:55:10,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:55:10,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:55:10,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:55:10,336 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:55:10,338 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:55:10,338 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:55:10,339 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:55:10,339 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:55:10,340 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:55:10,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:55:10,352 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:55:10,353 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab83d07-7008-443f-b0df-4a986723a2bf/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 23:55:10,372 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:55:10,373 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:55:10,373 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:55:10,373 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:55:10,374 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:55:10,374 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:55:10,374 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:55:10,374 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:55:10,375 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:55:10,375 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:55:10,375 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:55:10,375 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:55:10,375 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:55:10,375 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:55:10,376 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:55:10,376 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:55:10,376 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:55:10,376 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:55:10,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:55:10,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:55:10,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:55:10,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:55:10,378 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:55:10,378 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:55:10,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:55:10,378 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:55:10,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:55:10,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:55:10,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:55:10,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:55:10,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:55:10,379 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:55:10,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:55:10,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:55:10,380 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:55:10,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:55:10,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:55:10,380 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:55:10,380 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_4ab83d07-7008-443f-b0df-4a986723a2bf/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab83d07-7008-443f-b0df-4a986723a2bf/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d96d66163c8e8d61a2fa90f8dc8359a87f83533e82cd74c25a40ad0f5e1f460 [2022-11-25 23:55:10,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:55:10,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:55:10,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:55:10,751 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:55:10,752 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:55:10,753 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab83d07-7008-443f-b0df-4a986723a2bf/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-ethoc.cil.i [2022-11-25 23:55:13,791 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:55:14,420 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:55:14,420 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab83d07-7008-443f-b0df-4a986723a2bf/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-ethoc.cil.i [2022-11-25 23:55:14,486 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab83d07-7008-443f-b0df-4a986723a2bf/bin/utaipan-ByfvJB40ur/data/6fced2496/f88686d1b1204b3480c973e569bb3747/FLAGfc2a46bfc [2022-11-25 23:55:14,504 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab83d07-7008-443f-b0df-4a986723a2bf/bin/utaipan-ByfvJB40ur/data/6fced2496/f88686d1b1204b3480c973e569bb3747 [2022-11-25 23:55:14,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:55:14,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:55:14,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:55:14,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:55:14,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:55:14,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:55:14" (1/1) ... [2022-11-25 23:55:14,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@645a0f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:14, skipping insertion in model container [2022-11-25 23:55:14,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:55:14" (1/1) ... [2022-11-25 23:55:14,530 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:55:14,686 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:55:15,518 WARN L623 FunctionHandler]: Unknown extern function __local_bh_disable_ip [2022-11-25 23:55:15,534 WARN L623 FunctionHandler]: Unknown extern function __local_bh_enable_ip [2022-11-25 23:55:15,569 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 23:55:15,574 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-25 23:55:15,579 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 23:55:15,585 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-25 23:55:15,632 WARN L623 FunctionHandler]: Unknown extern function devm_kmalloc [2022-11-25 23:55:15,687 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:15,724 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 23:55:15,746 WARN L623 FunctionHandler]: Unknown extern function skb_tstamp_tx [2022-11-25 23:55:15,751 WARN L623 FunctionHandler]: Unknown extern function skb_clone_tx_timestamp [2022-11-25 23:55:15,783 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-11-25 23:55:15,792 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-25 23:55:15,798 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:55:15,856 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 23:55:15,857 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 23:55:15,868 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:55:15,869 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:55:15,902 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:55:15,903 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:55:15,904 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:55:15,905 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:55:15,905 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-11-25 23:55:15,976 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-11-25 23:55:16,008 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 23:55:16,035 WARN L623 FunctionHandler]: Unknown extern function mdiobus_alloc_size [2022-11-25 23:55:16,080 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 23:55:16,085 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 23:55:16,153 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:16,156 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:16,157 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:16,158 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:16,161 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:16,163 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:16,179 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:55:16,185 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 23:55:16,186 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-11-25 23:55:16,187 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-11-25 23:55:16,187 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:55:16,196 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:16,199 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:16,206 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:16,207 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:16,221 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:16,235 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-11-25 23:55:16,240 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-11-25 23:55:16,246 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-11-25 23:55:16,259 WARN L623 FunctionHandler]: Unknown extern function phy_find_first [2022-11-25 23:55:16,260 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:16,260 WARN L623 FunctionHandler]: Unknown extern function phy_connect_direct [2022-11-25 23:55:16,261 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:16,273 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:55:16,275 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:55:16,277 WARN L623 FunctionHandler]: Unknown extern function phy_start [2022-11-25 23:55:16,279 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 23:55:16,294 WARN L623 FunctionHandler]: Unknown extern function phy_stop [2022-11-25 23:55:16,301 WARN L623 FunctionHandler]: Unknown extern function phy_mii_ioctl [2022-11-25 23:55:16,328 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-25 23:55:16,329 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-11-25 23:55:16,362 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:55:16,363 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:55:16,367 WARN L623 FunctionHandler]: Unknown extern function phy_ethtool_gset [2022-11-25 23:55:16,373 WARN L623 FunctionHandler]: Unknown extern function phy_ethtool_sset [2022-11-25 23:55:16,393 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-11-25 23:55:16,411 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-11-25 23:55:16,412 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:16,413 WARN L623 FunctionHandler]: Unknown extern function __devm_request_region [2022-11-25 23:55:16,414 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:16,415 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-11-25 23:55:16,416 WARN L623 FunctionHandler]: Unknown extern function __devm_request_region [2022-11-25 23:55:16,418 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:16,419 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-11-25 23:55:16,421 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:16,424 WARN L623 FunctionHandler]: Unknown extern function devm_ioremap_nocache [2022-11-25 23:55:16,425 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:16,426 WARN L623 FunctionHandler]: Unknown extern function devm_ioremap_nocache [2022-11-25 23:55:16,435 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:16,435 WARN L623 FunctionHandler]: Unknown extern function dmam_alloc_coherent [2022-11-25 23:55:16,436 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:16,439 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:55:16,443 WARN L623 FunctionHandler]: Unknown extern function devm_clk_get [2022-11-25 23:55:16,444 WARN L623 FunctionHandler]: Unknown extern function clk_get_rate [2022-11-25 23:55:16,446 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:55:16,450 WARN L623 FunctionHandler]: Unknown extern function mdiobus_register [2022-11-25 23:55:16,450 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:16,451 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:16,451 WARN L623 FunctionHandler]: Unknown extern function ether_setup [2022-11-25 23:55:16,452 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-11-25 23:55:16,452 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:55:16,453 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:16,454 WARN L623 FunctionHandler]: Unknown extern function netif_napi_del [2022-11-25 23:55:16,454 WARN L623 FunctionHandler]: Unknown extern function mdiobus_unregister [2022-11-25 23:55:16,454 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:55:16,455 WARN L623 FunctionHandler]: Unknown extern function mdiobus_free [2022-11-25 23:55:16,460 WARN L623 FunctionHandler]: Unknown extern function netif_napi_del [2022-11-25 23:55:16,461 WARN L623 FunctionHandler]: Unknown extern function phy_disconnect [2022-11-25 23:55:16,461 WARN L623 FunctionHandler]: Unknown extern function mdiobus_unregister [2022-11-25 23:55:16,462 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:55:16,462 WARN L623 FunctionHandler]: Unknown extern function mdiobus_free [2022-11-25 23:55:16,768 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:16,768 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:16,768 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:16,769 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:16,769 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:16,769 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:16,770 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:16,770 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:16,770 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:16,771 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:16,771 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:16,771 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:16,774 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_ts_info [2022-11-25 23:55:16,776 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-11-25 23:55:16,778 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 23:55:16,785 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 23:55:16,786 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 23:55:16,793 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 23:55:16,809 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-25 23:55:16,817 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 23:55:16,818 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 23:55:16,819 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 23:55:16,820 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:55:16,820 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 23:55:16,820 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:55:16,821 WARN L623 FunctionHandler]: Unknown extern function __platform_driver_register [2022-11-25 23:55:16,822 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-11-25 23:55:16,861 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-25 23:55:16,862 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:55:16,870 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 23:55:16,956 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_4ab83d07-7008-443f-b0df-4a986723a2bf/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-ethoc.cil.i[282309,282322] [2022-11-25 23:55:16,960 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:16,961 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:16,962 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:16,963 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:16,968 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:16,969 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:16,969 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:16,969 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:16,975 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:16,977 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:16,977 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:16,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:55:17,005 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:55:17,172 WARN L623 FunctionHandler]: Unknown extern function __local_bh_disable_ip [2022-11-25 23:55:17,174 WARN L623 FunctionHandler]: Unknown extern function __local_bh_enable_ip [2022-11-25 23:55:17,181 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 23:55:17,186 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-25 23:55:17,187 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 23:55:17,187 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-25 23:55:17,188 WARN L623 FunctionHandler]: Unknown extern function devm_kmalloc [2022-11-25 23:55:17,189 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:17,192 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 23:55:17,194 WARN L623 FunctionHandler]: Unknown extern function skb_tstamp_tx [2022-11-25 23:55:17,194 WARN L623 FunctionHandler]: Unknown extern function skb_clone_tx_timestamp [2022-11-25 23:55:17,198 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-11-25 23:55:17,203 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-25 23:55:17,203 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:55:17,207 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 23:55:17,208 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 23:55:17,208 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:55:17,209 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:55:17,215 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:55:17,216 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:55:17,217 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:55:17,217 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 23:55:17,218 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-11-25 23:55:17,221 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-11-25 23:55:17,222 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 23:55:17,223 WARN L623 FunctionHandler]: Unknown extern function mdiobus_alloc_size [2022-11-25 23:55:17,224 WARN L623 FunctionHandler]: Unknown extern function ioread32 [2022-11-25 23:55:17,225 WARN L623 FunctionHandler]: Unknown extern function iowrite32 [2022-11-25 23:55:17,232 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:17,233 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:17,233 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:17,235 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:17,236 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:17,238 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:17,241 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:55:17,241 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 23:55:17,242 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-11-25 23:55:17,243 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-11-25 23:55:17,243 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:55:17,245 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:17,246 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:17,246 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:17,247 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:17,251 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:17,255 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-11-25 23:55:17,256 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-11-25 23:55:17,258 WARN L623 FunctionHandler]: Unknown extern function usleep_range [2022-11-25 23:55:17,266 WARN L623 FunctionHandler]: Unknown extern function phy_find_first [2022-11-25 23:55:17,267 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:17,267 WARN L623 FunctionHandler]: Unknown extern function phy_connect_direct [2022-11-25 23:55:17,268 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:17,272 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:55:17,275 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:55:17,275 WARN L623 FunctionHandler]: Unknown extern function phy_start [2022-11-25 23:55:17,275 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 23:55:17,281 WARN L623 FunctionHandler]: Unknown extern function phy_stop [2022-11-25 23:55:17,294 WARN L623 FunctionHandler]: Unknown extern function phy_mii_ioctl [2022-11-25 23:55:17,297 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-25 23:55:17,298 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-11-25 23:55:17,302 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:55:17,303 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:55:17,304 WARN L623 FunctionHandler]: Unknown extern function phy_ethtool_gset [2022-11-25 23:55:17,305 WARN L623 FunctionHandler]: Unknown extern function phy_ethtool_sset [2022-11-25 23:55:17,307 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-11-25 23:55:17,311 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-11-25 23:55:17,311 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:17,312 WARN L623 FunctionHandler]: Unknown extern function __devm_request_region [2022-11-25 23:55:17,312 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:17,313 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-11-25 23:55:17,313 WARN L623 FunctionHandler]: Unknown extern function __devm_request_region [2022-11-25 23:55:17,313 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:17,314 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-11-25 23:55:17,314 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:17,315 WARN L623 FunctionHandler]: Unknown extern function devm_ioremap_nocache [2022-11-25 23:55:17,315 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:17,316 WARN L623 FunctionHandler]: Unknown extern function devm_ioremap_nocache [2022-11-25 23:55:17,316 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:17,317 WARN L623 FunctionHandler]: Unknown extern function dmam_alloc_coherent [2022-11-25 23:55:17,317 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:17,319 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:55:17,321 WARN L623 FunctionHandler]: Unknown extern function devm_clk_get [2022-11-25 23:55:17,321 WARN L623 FunctionHandler]: Unknown extern function clk_get_rate [2022-11-25 23:55:17,323 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 23:55:17,327 WARN L623 FunctionHandler]: Unknown extern function mdiobus_register [2022-11-25 23:55:17,328 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:17,328 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:17,328 WARN L623 FunctionHandler]: Unknown extern function ether_setup [2022-11-25 23:55:17,329 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-11-25 23:55:17,329 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:55:17,330 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 23:55:17,330 WARN L623 FunctionHandler]: Unknown extern function netif_napi_del [2022-11-25 23:55:17,330 WARN L623 FunctionHandler]: Unknown extern function mdiobus_unregister [2022-11-25 23:55:17,330 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:55:17,331 WARN L623 FunctionHandler]: Unknown extern function mdiobus_free [2022-11-25 23:55:17,332 WARN L623 FunctionHandler]: Unknown extern function netif_napi_del [2022-11-25 23:55:17,332 WARN L623 FunctionHandler]: Unknown extern function phy_disconnect [2022-11-25 23:55:17,333 WARN L623 FunctionHandler]: Unknown extern function mdiobus_unregister [2022-11-25 23:55:17,333 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 23:55:17,333 WARN L623 FunctionHandler]: Unknown extern function mdiobus_free [2022-11-25 23:55:17,341 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:17,342 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:17,342 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:17,342 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:17,342 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:17,343 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:17,343 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:17,343 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:17,343 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:17,343 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:17,344 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:17,344 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:17,345 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_ts_info [2022-11-25 23:55:17,346 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-11-25 23:55:17,348 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 23:55:17,350 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 23:55:17,350 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 23:55:17,355 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 23:55:17,433 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-25 23:55:17,442 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 23:55:17,442 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 23:55:17,443 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 23:55:17,443 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:55:17,444 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 23:55:17,444 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:55:17,444 WARN L623 FunctionHandler]: Unknown extern function __platform_driver_register [2022-11-25 23:55:17,445 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-11-25 23:55:17,447 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-25 23:55:17,448 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:55:17,448 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 23:55:17,454 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_4ab83d07-7008-443f-b0df-4a986723a2bf/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-ethoc.cil.i[282309,282322] [2022-11-25 23:55:17,454 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:17,455 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:17,456 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:17,457 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:17,458 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:17,458 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:17,459 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:17,459 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:17,460 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:17,461 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:17,462 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 23:55:17,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:55:17,604 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:55:17,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:17 WrapperNode [2022-11-25 23:55:17,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:55:17,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:55:17,607 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:55:17,607 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:55:17,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:17" (1/1) ... [2022-11-25 23:55:17,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:17" (1/1) ... [2022-11-25 23:55:17,913 INFO L138 Inliner]: procedures = 347, calls = 1397, calls flagged for inlining = 224, calls inlined = 207, statements flattened = 3851 [2022-11-25 23:55:17,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:55:17,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:55:17,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:55:17,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:55:17,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:17" (1/1) ... [2022-11-25 23:55:17,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:17" (1/1) ... [2022-11-25 23:55:17,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:17" (1/1) ... [2022-11-25 23:55:17,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:17" (1/1) ... [2022-11-25 23:55:18,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:17" (1/1) ... [2022-11-25 23:55:18,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:17" (1/1) ... [2022-11-25 23:55:18,145 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:17" (1/1) ... [2022-11-25 23:55:18,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:17" (1/1) ... [2022-11-25 23:55:18,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:55:18,187 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:55:18,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:55:18,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:55:18,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:17" (1/1) ... [2022-11-25 23:55:18,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:55:18,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab83d07-7008-443f-b0df-4a986723a2bf/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:55:18,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab83d07-7008-443f-b0df-4a986723a2bf/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:55:18,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab83d07-7008-443f-b0df-4a986723a2bf/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:55:18,341 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2022-11-25 23:55:18,341 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2022-11-25 23:55:18,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 23:55:18,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 23:55:18,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 23:55:18,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 23:55:18,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 23:55:18,341 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 23:55:18,342 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2022-11-25 23:55:18,342 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2022-11-25 23:55:18,342 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_read_bd [2022-11-25 23:55:18,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_read_bd [2022-11-25 23:55:18,342 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-25 23:55:18,342 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-25 23:55:18,342 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 23:55:18,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 23:55:18,342 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-25 23:55:18,343 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_mdio_poll [2022-11-25 23:55:18,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_mdio_poll [2022-11-25 23:55:18,343 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2022-11-25 23:55:18,343 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2022-11-25 23:55:18,343 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-25 23:55:18,343 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-25 23:55:18,343 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-25 23:55:18,343 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-25 23:55:18,343 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_stop [2022-11-25 23:55:18,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_stop [2022-11-25 23:55:18,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:55:18,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_clk_disable_unprepare_15 [2022-11-25 23:55:18,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_clk_disable_unprepare_15 [2022-11-25 23:55:18,344 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_ack_irq [2022-11-25 23:55:18,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_ack_irq [2022-11-25 23:55:18,344 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-25 23:55:18,344 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-25 23:55:18,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:55:18,344 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-25 23:55:18,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-25 23:55:18,345 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-25 23:55:18,345 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-25 23:55:18,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-25 23:55:18,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-25 23:55:18,345 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-11-25 23:55:18,345 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-11-25 23:55:18,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:55:18,345 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_get_regs_len [2022-11-25 23:55:18,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_get_regs_len [2022-11-25 23:55:18,346 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_read [2022-11-25 23:55:18,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_read [2022-11-25 23:55:18,346 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-11-25 23:55:18,346 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-11-25 23:55:18,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 23:55:18,346 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_disable_rx_and_tx [2022-11-25 23:55:18,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_disable_rx_and_tx [2022-11-25 23:55:18,346 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_do_set_mac_address [2022-11-25 23:55:18,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_do_set_mac_address [2022-11-25 23:55:18,346 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_enable_rx_and_tx [2022-11-25 23:55:18,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_enable_rx_and_tx [2022-11-25 23:55:18,346 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_init_ring [2022-11-25 23:55:18,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_init_ring [2022-11-25 23:55:18,347 INFO L130 BoogieDeclarations]: Found specification of procedure devm_ioremap_nocache [2022-11-25 23:55:18,347 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_ioremap_nocache [2022-11-25 23:55:18,347 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-25 23:55:18,347 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-25 23:55:18,347 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-25 23:55:18,347 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-25 23:55:18,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-25 23:55:18,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-25 23:55:18,347 INFO L130 BoogieDeclarations]: Found specification of procedure __rounddown_pow_of_two [2022-11-25 23:55:18,347 INFO L138 BoogieDeclarations]: Found implementation of procedure __rounddown_pow_of_two [2022-11-25 23:55:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 23:55:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 23:55:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-25 23:55:18,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-25 23:55:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:55:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-25 23:55:18,348 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-25 23:55:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-25 23:55:18,348 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-25 23:55:18,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 23:55:18,349 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 23:55:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2022-11-25 23:55:18,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2022-11-25 23:55:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_interrupt [2022-11-25 23:55:18,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_interrupt [2022-11-25 23:55:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-25 23:55:18,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-25 23:55:18,349 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-25 23:55:18,349 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-25 23:55:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 23:55:18,350 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 23:55:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:55:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 23:55:18,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 23:55:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_probe [2022-11-25 23:55:18,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_probe [2022-11-25 23:55:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:55:18,350 INFO L130 BoogieDeclarations]: Found specification of procedure __devm_request_region [2022-11-25 23:55:18,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __devm_request_region [2022-11-25 23:55:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_resume [2022-11-25 23:55:18,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_resume [2022-11-25 23:55:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-25 23:55:18,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-25 23:55:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-25 23:55:18,351 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-25 23:55:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-25 23:55:18,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-25 23:55:18,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-25 23:55:18,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-25 23:55:18,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:55:18,352 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-25 23:55:18,352 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-25 23:55:18,352 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_write_bd [2022-11-25 23:55:18,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_write_bd [2022-11-25 23:55:18,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-25 23:55:18,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-25 23:55:18,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:55:18,352 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-25 23:55:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_write [2022-11-25 23:55:18,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_write [2022-11-25 23:55:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 23:55:18,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 23:55:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-25 23:55:18,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-25 23:55:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-25 23:55:18,353 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-25 23:55:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_enable_irq [2022-11-25 23:55:18,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_enable_irq [2022-11-25 23:55:18,353 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_open [2022-11-25 23:55:18,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_open [2022-11-25 23:55:18,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-25 23:55:18,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-25 23:55:18,370 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_disable_irq [2022-11-25 23:55:18,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_disable_irq [2022-11-25 23:55:18,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-25 23:55:18,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-25 23:55:18,370 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_remove [2022-11-25 23:55:18,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_remove [2022-11-25 23:55:18,371 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-25 23:55:18,371 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-25 23:55:18,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:55:18,371 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2022-11-25 23:55:18,371 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2022-11-25 23:55:18,371 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-25 23:55:18,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-25 23:55:18,371 INFO L130 BoogieDeclarations]: Found specification of procedure ethoc_tx_timeout [2022-11-25 23:55:18,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ethoc_tx_timeout [2022-11-25 23:55:18,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:55:18,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:55:19,214 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:55:19,217 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:55:19,505 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 23:55:38,737 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-25 23:55:38,887 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:55:39,795 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:55:39,795 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-25 23:55:39,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:55:39 BoogieIcfgContainer [2022-11-25 23:55:39,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:55:39,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:55:39,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:55:39,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:55:39,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:55:14" (1/3) ... [2022-11-25 23:55:39,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ddada4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:55:39, skipping insertion in model container [2022-11-25 23:55:39,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:55:17" (2/3) ... [2022-11-25 23:55:39,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ddada4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:55:39, skipping insertion in model container [2022-11-25 23:55:39,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:55:39" (3/3) ... [2022-11-25 23:55:39,807 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-ethoc.cil.i [2022-11-25 23:55:39,827 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:55:39,827 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:55:39,912 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:55:39,919 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;@6e02895c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:55:39,919 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:55:39,930 INFO L276 IsEmpty]: Start isEmpty. Operand has 961 states, 597 states have (on average 1.3299832495812396) internal successors, (794), 611 states have internal predecessors, (794), 299 states have call successors, (299), 65 states have call predecessors, (299), 64 states have return successors, (292), 290 states have call predecessors, (292), 292 states have call successors, (292) [2022-11-25 23:55:39,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-25 23:55:39,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:55:39,960 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:55:39,961 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] === [2022-11-25 23:55:39,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:55:39,966 INFO L85 PathProgramCache]: Analyzing trace with hash 2043535415, now seen corresponding path program 1 times [2022-11-25 23:55:39,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:55:39,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261682953] [2022-11-25 23:55:39,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:55:39,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:55:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:55:41,149 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-11-25 23:55:41,150 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:55:41,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261682953] [2022-11-25 23:55:41,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261682953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:55:41,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:55:41,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:55:41,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748193083] [2022-11-25 23:55:41,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:55:41,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:55:41,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:55:41,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:55:41,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:55:41,213 INFO L87 Difference]: Start difference. First operand has 961 states, 597 states have (on average 1.3299832495812396) internal successors, (794), 611 states have internal predecessors, (794), 299 states have call successors, (299), 65 states have call predecessors, (299), 64 states have return successors, (292), 290 states have call predecessors, (292), 292 states have call successors, (292) Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-25 23:55:43,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:55:46,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:55:46,282 INFO L93 Difference]: Finished difference Result 2778 states and 4015 transitions. [2022-11-25 23:55:46,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:55:46,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 137 [2022-11-25 23:55:46,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:55:46,325 INFO L225 Difference]: With dead ends: 2778 [2022-11-25 23:55:46,326 INFO L226 Difference]: Without dead ends: 1830 [2022-11-25 23:55:46,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:55:46,341 INFO L413 NwaCegarLoop]: 1398 mSDtfsCounter, 1306 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 516 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1306 SdHoareTripleChecker+Valid, 2495 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 516 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:55:46,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1306 Valid, 2495 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 516 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-11-25 23:55:46,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1830 states. [2022-11-25 23:55:46,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1830 to 1830. [2022-11-25 23:55:46,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1830 states, 1147 states have (on average 1.3269398430688752) internal successors, (1522), 1175 states have internal predecessors, (1522), 557 states have call successors, (557), 126 states have call predecessors, (557), 125 states have return successors, (554), 550 states have call predecessors, (554), 554 states have call successors, (554) [2022-11-25 23:55:46,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1830 states to 1830 states and 2633 transitions. [2022-11-25 23:55:46,581 INFO L78 Accepts]: Start accepts. Automaton has 1830 states and 2633 transitions. Word has length 137 [2022-11-25 23:55:46,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:55:46,582 INFO L495 AbstractCegarLoop]: Abstraction has 1830 states and 2633 transitions. [2022-11-25 23:55:46,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-25 23:55:46,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1830 states and 2633 transitions. [2022-11-25 23:55:46,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-25 23:55:46,593 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:55:46,593 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 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, 1, 1, 1] [2022-11-25 23:55:46,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:55:46,594 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] === [2022-11-25 23:55:46,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:55:46,594 INFO L85 PathProgramCache]: Analyzing trace with hash -345727484, now seen corresponding path program 1 times [2022-11-25 23:55:46,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:55:46,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424422207] [2022-11-25 23:55:46,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:55:46,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:55:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:55:47,743 INFO L134 CoverageAnalysis]: Checked inductivity of 659 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2022-11-25 23:55:47,743 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:55:47,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424422207] [2022-11-25 23:55:47,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424422207] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:55:47,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:55:47,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:55:47,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842242042] [2022-11-25 23:55:47,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:55:47,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:55:47,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:55:47,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:55:47,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:55:47,747 INFO L87 Difference]: Start difference. First operand 1830 states and 2633 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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) [2022-11-25 23:55:49,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:55:54,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:55:54,063 INFO L93 Difference]: Finished difference Result 3641 states and 5282 transitions. [2022-11-25 23:55:54,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:55:54,064 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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 175 [2022-11-25 23:55:54,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:55:54,092 INFO L225 Difference]: With dead ends: 3641 [2022-11-25 23:55:54,092 INFO L226 Difference]: Without dead ends: 3637 [2022-11-25 23:55:54,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:55:54,097 INFO L413 NwaCegarLoop]: 1377 mSDtfsCounter, 1320 mSDsluCounter, 3843 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 5220 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:55:54,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1321 Valid, 5220 Invalid, 1032 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1029 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-11-25 23:55:54,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3637 states. [2022-11-25 23:55:54,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3637 to 3633. [2022-11-25 23:55:54,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3633 states, 2280 states have (on average 1.3285087719298245) internal successors, (3029), 2337 states have internal predecessors, (3029), 1102 states have call successors, (1102), 253 states have call predecessors, (1102), 250 states have return successors, (1144), 1086 states have call predecessors, (1144), 1096 states have call successors, (1144) [2022-11-25 23:55:54,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3633 states to 3633 states and 5275 transitions. [2022-11-25 23:55:54,329 INFO L78 Accepts]: Start accepts. Automaton has 3633 states and 5275 transitions. Word has length 175 [2022-11-25 23:55:54,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:55:54,330 INFO L495 AbstractCegarLoop]: Abstraction has 3633 states and 5275 transitions. [2022-11-25 23:55:54,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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) [2022-11-25 23:55:54,331 INFO L276 IsEmpty]: Start isEmpty. Operand 3633 states and 5275 transitions. [2022-11-25 23:55:54,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-25 23:55:54,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:55:54,338 INFO L195 NwaCegarLoop]: trace histogram [16, 12, 12, 12, 12, 12, 12, 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, 1, 1, 1] [2022-11-25 23:55:54,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:55:54,338 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] === [2022-11-25 23:55:54,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:55:54,339 INFO L85 PathProgramCache]: Analyzing trace with hash -949731742, now seen corresponding path program 1 times [2022-11-25 23:55:54,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:55:54,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487138630] [2022-11-25 23:55:54,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:55:54,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:55:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:55:55,210 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 659 trivial. 0 not checked. [2022-11-25 23:55:55,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:55:55,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487138630] [2022-11-25 23:55:55,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487138630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:55:55,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:55:55,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:55:55,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733498423] [2022-11-25 23:55:55,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:55:55,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:55:55,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:55:55,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:55:55,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:55:55,213 INFO L87 Difference]: Start difference. First operand 3633 states and 5275 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-25 23:55:57,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:56:00,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:56:00,936 INFO L93 Difference]: Finished difference Result 3639 states and 5280 transitions. [2022-11-25 23:56:00,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:56:00,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 180 [2022-11-25 23:56:00,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:56:00,964 INFO L225 Difference]: With dead ends: 3639 [2022-11-25 23:56:00,964 INFO L226 Difference]: Without dead ends: 3614 [2022-11-25 23:56:00,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:56:00,968 INFO L413 NwaCegarLoop]: 1104 mSDtfsCounter, 1314 mSDsluCounter, 2199 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 3303 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:56:00,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 3303 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 771 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-25 23:56:00,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3614 states. [2022-11-25 23:56:01,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3614 to 3614. [2022-11-25 23:56:01,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3614 states, 2272 states have (on average 1.3283450704225352) internal successors, (3018), 2327 states have internal predecessors, (3018), 1093 states have call successors, (1093), 250 states have call predecessors, (1093), 248 states have return successors, (1138), 1080 states have call predecessors, (1138), 1090 states have call successors, (1138) [2022-11-25 23:56:01,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3614 states to 3614 states and 5249 transitions. [2022-11-25 23:56:01,200 INFO L78 Accepts]: Start accepts. Automaton has 3614 states and 5249 transitions. Word has length 180 [2022-11-25 23:56:01,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:56:01,201 INFO L495 AbstractCegarLoop]: Abstraction has 3614 states and 5249 transitions. [2022-11-25 23:56:01,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-25 23:56:01,202 INFO L276 IsEmpty]: Start isEmpty. Operand 3614 states and 5249 transitions. [2022-11-25 23:56:01,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2022-11-25 23:56:01,224 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:56:01,224 INFO L195 NwaCegarLoop]: trace histogram [29, 22, 22, 22, 22, 22, 22, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:56:01,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:56:01,225 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] === [2022-11-25 23:56:01,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:56:01,225 INFO L85 PathProgramCache]: Analyzing trace with hash -285113565, now seen corresponding path program 1 times [2022-11-25 23:56:01,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:56:01,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600468313] [2022-11-25 23:56:01,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:56:01,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:56:01,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:56:02,054 INFO L134 CoverageAnalysis]: Checked inductivity of 2280 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2274 trivial. 0 not checked. [2022-11-25 23:56:02,054 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:56:02,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600468313] [2022-11-25 23:56:02,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600468313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:56:02,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:56:02,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:56:02,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031154125] [2022-11-25 23:56:02,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:56:02,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:56:02,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:56:02,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:56:02,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:56:02,061 INFO L87 Difference]: Start difference. First operand 3614 states and 5249 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-25 23:56:04,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:56:07,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:56:07,500 INFO L93 Difference]: Finished difference Result 10156 states and 14671 transitions. [2022-11-25 23:56:07,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:56:07,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) Word has length 444 [2022-11-25 23:56:07,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:56:07,545 INFO L225 Difference]: With dead ends: 10156 [2022-11-25 23:56:07,546 INFO L226 Difference]: Without dead ends: 6567 [2022-11-25 23:56:07,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:56:07,567 INFO L413 NwaCegarLoop]: 1396 mSDtfsCounter, 1036 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1036 SdHoareTripleChecker+Valid, 2439 SdHoareTripleChecker+Invalid, 646 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:56:07,568 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1036 Valid, 2439 Invalid, 646 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 616 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-11-25 23:56:07,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6567 states. [2022-11-25 23:56:07,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6567 to 6551. [2022-11-25 23:56:07,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6551 states, 4075 states have (on average 1.3013496932515338) internal successors, (5303), 4186 states have internal predecessors, (5303), 1991 states have call successors, (1991), 486 states have call predecessors, (1991), 484 states have return successors, (2038), 1962 states have call predecessors, (2038), 1988 states have call successors, (2038) [2022-11-25 23:56:08,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6551 states to 6551 states and 9332 transitions. [2022-11-25 23:56:08,008 INFO L78 Accepts]: Start accepts. Automaton has 6551 states and 9332 transitions. Word has length 444 [2022-11-25 23:56:08,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:56:08,009 INFO L495 AbstractCegarLoop]: Abstraction has 6551 states and 9332 transitions. [2022-11-25 23:56:08,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-25 23:56:08,010 INFO L276 IsEmpty]: Start isEmpty. Operand 6551 states and 9332 transitions. [2022-11-25 23:56:08,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 455 [2022-11-25 23:56:08,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:56:08,042 INFO L195 NwaCegarLoop]: trace histogram [30, 22, 22, 22, 22, 22, 22, 8, 8, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:56:08,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:56:08,043 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] === [2022-11-25 23:56:08,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:56:08,043 INFO L85 PathProgramCache]: Analyzing trace with hash 384191962, now seen corresponding path program 1 times [2022-11-25 23:56:08,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:56:08,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170644118] [2022-11-25 23:56:08,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:56:08,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:56:08,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:56:08,764 INFO L134 CoverageAnalysis]: Checked inductivity of 2381 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2375 trivial. 0 not checked. [2022-11-25 23:56:08,765 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:56:08,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170644118] [2022-11-25 23:56:08,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170644118] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:56:08,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:56:08,765 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:56:08,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33662006] [2022-11-25 23:56:08,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:56:08,768 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:56:08,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:56:08,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:56:08,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:56:08,769 INFO L87 Difference]: Start difference. First operand 6551 states and 9332 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2022-11-25 23:56:10,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:56:14,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:56:14,279 INFO L93 Difference]: Finished difference Result 12790 states and 18159 transitions. [2022-11-25 23:56:14,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:56:14,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) Word has length 454 [2022-11-25 23:56:14,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:56:14,325 INFO L225 Difference]: With dead ends: 12790 [2022-11-25 23:56:14,325 INFO L226 Difference]: Without dead ends: 6264 [2022-11-25 23:56:14,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:56:14,361 INFO L413 NwaCegarLoop]: 1743 mSDtfsCounter, 1225 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 2818 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:56:14,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1225 Valid, 2818 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 663 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-25 23:56:14,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6264 states. [2022-11-25 23:56:14,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6264 to 6253. [2022-11-25 23:56:14,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6253 states, 3953 states have (on average 1.2972426005565394) internal successors, (5128), 4057 states have internal predecessors, (5128), 1813 states have call successors, (1813), 488 states have call predecessors, (1813), 486 states have return successors, (1858), 1783 states have call predecessors, (1858), 1810 states have call successors, (1858) [2022-11-25 23:56:14,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6253 states to 6253 states and 8799 transitions. [2022-11-25 23:56:14,823 INFO L78 Accepts]: Start accepts. Automaton has 6253 states and 8799 transitions. Word has length 454 [2022-11-25 23:56:14,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:56:14,824 INFO L495 AbstractCegarLoop]: Abstraction has 6253 states and 8799 transitions. [2022-11-25 23:56:14,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2022-11-25 23:56:14,825 INFO L276 IsEmpty]: Start isEmpty. Operand 6253 states and 8799 transitions. [2022-11-25 23:56:14,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2022-11-25 23:56:14,853 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:56:14,854 INFO L195 NwaCegarLoop]: trace histogram [30, 22, 22, 22, 22, 22, 22, 9, 9, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:56:14,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:56:14,854 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] === [2022-11-25 23:56:14,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:56:14,855 INFO L85 PathProgramCache]: Analyzing trace with hash 781695200, now seen corresponding path program 1 times [2022-11-25 23:56:14,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:56:14,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148807191] [2022-11-25 23:56:14,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:56:14,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:56:15,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:56:15,548 INFO L134 CoverageAnalysis]: Checked inductivity of 2405 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2394 trivial. 0 not checked. [2022-11-25 23:56:15,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:56:15,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148807191] [2022-11-25 23:56:15,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148807191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:56:15,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:56:15,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:56:15,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126750531] [2022-11-25 23:56:15,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:56:15,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:56:15,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:56:15,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:56:15,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:56:15,552 INFO L87 Difference]: Start difference. First operand 6253 states and 8799 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-11-25 23:56:17,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:56:21,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:56:21,262 INFO L93 Difference]: Finished difference Result 14666 states and 20683 transitions. [2022-11-25 23:56:21,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:56:21,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 459 [2022-11-25 23:56:21,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:56:21,314 INFO L225 Difference]: With dead ends: 14666 [2022-11-25 23:56:21,315 INFO L226 Difference]: Without dead ends: 8801 [2022-11-25 23:56:21,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:56:21,341 INFO L413 NwaCegarLoop]: 2084 mSDtfsCounter, 1223 mSDsluCounter, 1071 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1223 SdHoareTripleChecker+Valid, 3155 SdHoareTripleChecker+Invalid, 790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:56:21,342 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1223 Valid, 3155 Invalid, 790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 778 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-25 23:56:21,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8801 states. [2022-11-25 23:56:21,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8801 to 8790. [2022-11-25 23:56:21,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8790 states, 5578 states have (on average 1.2981355324489063) internal successors, (7241), 5725 states have internal predecessors, (7241), 2521 states have call successors, (2521), 692 states have call predecessors, (2521), 690 states have return successors, (2589), 2478 states have call predecessors, (2589), 2518 states have call successors, (2589) [2022-11-25 23:56:21,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8790 states to 8790 states and 12351 transitions. [2022-11-25 23:56:21,852 INFO L78 Accepts]: Start accepts. Automaton has 8790 states and 12351 transitions. Word has length 459 [2022-11-25 23:56:21,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:56:21,854 INFO L495 AbstractCegarLoop]: Abstraction has 8790 states and 12351 transitions. [2022-11-25 23:56:21,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-11-25 23:56:21,854 INFO L276 IsEmpty]: Start isEmpty. Operand 8790 states and 12351 transitions. [2022-11-25 23:56:21,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2022-11-25 23:56:21,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:56:21,888 INFO L195 NwaCegarLoop]: trace histogram [32, 22, 22, 22, 22, 22, 22, 11, 11, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:56:21,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:56:21,888 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] === [2022-11-25 23:56:21,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:56:21,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1387640172, now seen corresponding path program 1 times [2022-11-25 23:56:21,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:56:21,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462940740] [2022-11-25 23:56:21,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:56:21,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:56:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:56:24,529 INFO L134 CoverageAnalysis]: Checked inductivity of 2611 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2599 trivial. 0 not checked. [2022-11-25 23:56:24,530 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:56:24,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462940740] [2022-11-25 23:56:24,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462940740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:56:24,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:56:24,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:56:24,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457639733] [2022-11-25 23:56:24,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:56:24,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:56:24,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:56:24,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:56:24,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:56:24,533 INFO L87 Difference]: Start difference. First operand 8790 states and 12351 transitions. Second operand has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 2 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-11-25 23:56:26,572 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:56:30,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:56:30,123 INFO L93 Difference]: Finished difference Result 17224 states and 24436 transitions. [2022-11-25 23:56:30,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:56:30,126 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 2 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 500 [2022-11-25 23:56:30,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:56:30,166 INFO L225 Difference]: With dead ends: 17224 [2022-11-25 23:56:30,166 INFO L226 Difference]: Without dead ends: 8822 [2022-11-25 23:56:30,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:56:30,196 INFO L413 NwaCegarLoop]: 1098 mSDtfsCounter, 10 mSDsluCounter, 2169 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 3267 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:56:30,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 3267 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 785 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-25 23:56:30,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8822 states. [2022-11-25 23:56:30,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8822 to 8814. [2022-11-25 23:56:30,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8814 states, 5598 states have (on average 1.2970703822793854) internal successors, (7261), 5749 states have internal predecessors, (7261), 2521 states have call successors, (2521), 692 states have call predecessors, (2521), 694 states have return successors, (2594), 2478 states have call predecessors, (2594), 2518 states have call successors, (2594) [2022-11-25 23:56:30,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8814 states to 8814 states and 12376 transitions. [2022-11-25 23:56:30,691 INFO L78 Accepts]: Start accepts. Automaton has 8814 states and 12376 transitions. Word has length 500 [2022-11-25 23:56:30,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:56:30,692 INFO L495 AbstractCegarLoop]: Abstraction has 8814 states and 12376 transitions. [2022-11-25 23:56:30,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.75) internal successors, (147), 4 states have internal predecessors, (147), 2 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-11-25 23:56:30,693 INFO L276 IsEmpty]: Start isEmpty. Operand 8814 states and 12376 transitions. [2022-11-25 23:56:30,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2022-11-25 23:56:30,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:56:30,721 INFO L195 NwaCegarLoop]: trace histogram [32, 22, 22, 22, 22, 22, 22, 13, 13, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:56:30,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 23:56:30,721 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] === [2022-11-25 23:56:30,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:56:30,722 INFO L85 PathProgramCache]: Analyzing trace with hash -2049974854, now seen corresponding path program 1 times [2022-11-25 23:56:30,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:56:30,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830895640] [2022-11-25 23:56:30,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:56:30,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:56:31,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:56:33,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2693 backedges. 38 proven. 20 refuted. 0 times theorem prover too weak. 2635 trivial. 0 not checked. [2022-11-25 23:56:33,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:56:33,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830895640] [2022-11-25 23:56:33,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830895640] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:56:33,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190207579] [2022-11-25 23:56:33,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:56:33,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:56:33,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab83d07-7008-443f-b0df-4a986723a2bf/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:56:33,434 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab83d07-7008-443f-b0df-4a986723a2bf/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:56:33,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ab83d07-7008-443f-b0df-4a986723a2bf/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:56:35,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:56:35,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 4793 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-25 23:56:35,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:56:38,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2693 backedges. 1346 proven. 23 refuted. 0 times theorem prover too weak. 1324 trivial. 0 not checked. [2022-11-25 23:56:38,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:56:39,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2693 backedges. 35 proven. 25 refuted. 0 times theorem prover too weak. 2633 trivial. 0 not checked. [2022-11-25 23:56:39,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190207579] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:56:39,938 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [450213729] [2022-11-25 23:56:39,985 INFO L159 IcfgInterpreter]: Started Sifa with 234 locations of interest [2022-11-25 23:56:39,986 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:56:39,991 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:56:39,996 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:56:39,997 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:59:30,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1352 treesize of output 1151 [2022-11-26 00:02:01,628 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1352 treesize of output 1151 [2022-11-26 00:02:02,106 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 690 treesize of output 651 [2022-11-26 00:09:15,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-26 00:09:15,594 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-26 00:09:30,261 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-26 00:09:30,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 12 treesize of output 24 [2022-11-26 00:09:30,453 INFO L321 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2022-11-26 00:09:30,454 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 40 treesize of output 37 [2022-11-26 00:09:30,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-26 00:09:30,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-26 00:09:30,668 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2022-11-26 00:09:30,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10