./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-smsc-smsc911x.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_52219860-2d6a-4315-9454-c8778a360693/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52219860-2d6a-4315-9454-c8778a360693/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_52219860-2d6a-4315-9454-c8778a360693/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52219860-2d6a-4315-9454-c8778a360693/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-smsc-smsc911x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52219860-2d6a-4315-9454-c8778a360693/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_52219860-2d6a-4315-9454-c8778a360693/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 0705c7c1097399903dd015d79fa2944ad89b2d381aed5d9e2539b97c330aa424 --- 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 23:50:51,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:50:51,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:50:51,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:50:51,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:50:51,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:50:51,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:50:51,072 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:50:51,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:50:51,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:50:51,081 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:50:51,083 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:50:51,084 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:50:51,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:50:51,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:50:51,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:50:51,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:50:51,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:50:51,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:50:51,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:50:51,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:50:51,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:50:51,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:50:51,107 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:50:51,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:50:51,118 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:50:51,118 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:50:51,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:50:51,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:50:51,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:50:51,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:50:51,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:50:51,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:50:51,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:50:51,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:50:51,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:50:51,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:50:51,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:50:51,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:50:51,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:50:51,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:50:51,134 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52219860-2d6a-4315-9454-c8778a360693/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 23:50:51,181 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:50:51,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:50:51,183 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:50:51,183 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:50:51,185 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:50:51,185 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:50:51,185 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:50:51,186 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:50:51,186 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:50:51,186 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:50:51,187 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:50:51,188 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:50:51,188 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:50:51,188 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:50:51,188 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:50:51,189 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:50:51,189 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:50:51,189 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:50:51,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:50:51,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:50:51,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:50:51,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:50:51,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:50:51,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:50:51,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:50:51,193 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:50:51,193 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:50:51,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:50:51,194 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:50:51,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:50:51,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:50:51,195 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:50:51,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:50:51,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:50:51,196 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:50:51,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:50:51,196 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:50:51,197 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:50:51,197 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_52219860-2d6a-4315-9454-c8778a360693/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52219860-2d6a-4315-9454-c8778a360693/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0705c7c1097399903dd015d79fa2944ad89b2d381aed5d9e2539b97c330aa424 [2022-11-25 23:50:51,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:50:51,551 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:50:51,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:50:51,556 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:50:51,557 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:50:51,558 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52219860-2d6a-4315-9454-c8778a360693/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-smsc-smsc911x.cil.i [2022-11-25 23:50:54,764 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:50:55,412 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:50:55,412 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52219860-2d6a-4315-9454-c8778a360693/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-smsc-smsc911x.cil.i [2022-11-25 23:50:55,473 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52219860-2d6a-4315-9454-c8778a360693/bin/utaipan-ByfvJB40ur/data/3c772fbc0/146ee77d2df940eaa01fa64b2fa9b019/FLAG76db973a0 [2022-11-25 23:50:55,493 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52219860-2d6a-4315-9454-c8778a360693/bin/utaipan-ByfvJB40ur/data/3c772fbc0/146ee77d2df940eaa01fa64b2fa9b019 [2022-11-25 23:50:55,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:50:55,498 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:50:55,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:50:55,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:50:55,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:50:55,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:50:55" (1/1) ... [2022-11-25 23:50:55,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53427ad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:55, skipping insertion in model container [2022-11-25 23:50:55,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:50:55" (1/1) ... [2022-11-25 23:50:55,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:50:55,709 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:50:56,641 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 23:50:56,649 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-25 23:50:56,655 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 23:50:56,662 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-25 23:50:56,668 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 23:50:56,860 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 23:50:56,886 WARN L623 FunctionHandler]: Unknown extern function skb_tstamp_tx [2022-11-25 23:50:56,893 WARN L623 FunctionHandler]: Unknown extern function skb_clone_tx_timestamp [2022-11-25 23:50:56,951 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-25 23:50:56,954 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:50:57,020 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 23:50:57,022 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 23:50:57,035 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:50:57,036 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:50:57,241 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-11-25 23:50:57,259 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 23:50:57,336 WARN L623 FunctionHandler]: Unknown extern function mdiobus_alloc_size [2022-11-25 23:50:57,366 WARN L623 FunctionHandler]: Unknown extern function mdiobus_read [2022-11-25 23:50:57,373 WARN L623 FunctionHandler]: Unknown extern function mdiobus_write [2022-11-25 23:50:57,436 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:57,462 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:57,469 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:57,471 WARN L623 FunctionHandler]: Unknown extern function iowrite32_rep [2022-11-25 23:50:57,478 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:57,488 WARN L623 FunctionHandler]: Unknown extern function iowrite32_rep [2022-11-25 23:50:57,495 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:57,497 WARN L623 FunctionHandler]: Unknown extern function ioread32_rep [2022-11-25 23:50:57,510 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:57,512 WARN L623 FunctionHandler]: Unknown extern function ioread32_rep [2022-11-25 23:50:57,523 WARN L623 FunctionHandler]: Unknown extern function regulator_bulk_enable [2022-11-25 23:50:57,534 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:50:57,535 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:50:57,545 WARN L623 FunctionHandler]: Unknown extern function regulator_bulk_disable [2022-11-25 23:50:57,561 WARN L623 FunctionHandler]: Unknown extern function regulator_bulk_get [2022-11-25 23:50:57,562 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:50:57,562 WARN L623 FunctionHandler]: Unknown extern function clk_get [2022-11-25 23:50:57,565 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-25 23:50:57,572 WARN L623 FunctionHandler]: Unknown extern function regulator_bulk_free [2022-11-25 23:50:57,573 WARN L623 FunctionHandler]: Unknown extern function clk_put [2022-11-25 23:50:57,581 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:50:57,594 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:50:57,617 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:50:57,630 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:57,652 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:57,665 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:57,668 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:57,701 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:57,703 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:57,728 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:50:57,734 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:50:57,751 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:57,752 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:57,753 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:57,765 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:57,779 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:57,792 WARN L623 FunctionHandler]: Unknown extern function phy_find_first [2022-11-25 23:50:57,795 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:50:57,803 WARN L623 FunctionHandler]: Unknown extern function phy_connect_direct [2022-11-25 23:50:57,804 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:50:57,804 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:50:57,820 WARN L623 FunctionHandler]: Unknown extern function mdiobus_register [2022-11-25 23:50:57,824 WARN L623 FunctionHandler]: Unknown extern function mdiobus_unregister [2022-11-25 23:50:57,824 WARN L623 FunctionHandler]: Unknown extern function mdiobus_free [2022-11-25 23:50:57,865 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:57,873 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-11-25 23:50:57,877 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:50:57,878 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 23:50:57,879 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-11-25 23:50:57,885 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-25 23:50:57,886 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-11-25 23:50:57,891 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:50:57,947 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:57,947 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:57,954 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:57,958 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:57,960 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:57,966 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:58,004 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:50:58,028 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:58,035 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:50:58,036 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-25 23:50:58,038 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:50:58,039 WARN L623 FunctionHandler]: Unknown extern function phy_start [2022-11-25 23:50:58,052 WARN L623 FunctionHandler]: Unknown extern function phy_stop [2022-11-25 23:50:58,061 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:50:58,085 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:58,094 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-11-25 23:50:58,116 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-11-25 23:50:58,116 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-11-25 23:50:58,122 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:50:58,143 WARN L623 FunctionHandler]: Unknown extern function phy_mii_ioctl [2022-11-25 23:50:58,148 WARN L623 FunctionHandler]: Unknown extern function phy_ethtool_gset [2022-11-25 23:50:58,154 WARN L623 FunctionHandler]: Unknown extern function phy_ethtool_sset [2022-11-25 23:50:58,160 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:50:58,166 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:50:58,167 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:50:58,172 WARN L623 FunctionHandler]: Unknown extern function phy_start_aneg [2022-11-25 23:50:58,190 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:58,197 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:50:58,203 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:50:58,248 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:50:58,249 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:50:58,251 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:58,252 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:50:58,258 WARN L623 FunctionHandler]: Unknown extern function ether_setup [2022-11-25 23:50:58,258 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-11-25 23:50:58,267 WARN L623 FunctionHandler]: Unknown extern function phy_disconnect [2022-11-25 23:50:58,267 WARN L623 FunctionHandler]: Unknown extern function mdiobus_unregister [2022-11-25 23:50:58,268 WARN L623 FunctionHandler]: Unknown extern function mdiobus_free [2022-11-25 23:50:58,269 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource_byname [2022-11-25 23:50:58,271 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-11-25 23:50:58,271 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-25 23:50:58,272 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:50:58,282 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:50:58,282 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource_byname [2022-11-25 23:50:58,284 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-11-25 23:50:58,284 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:50:58,285 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-11-25 23:50:58,287 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:50:58,287 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-11-25 23:50:58,289 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-11-25 23:50:58,297 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:50:58,297 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:50:58,298 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-25 23:50:58,311 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:58,765 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-11-25 23:50:58,766 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_ts_info [2022-11-25 23:50:58,766 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 23:50:58,768 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 23:50:58,774 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 23:50:58,778 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 23:50:58,779 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 23:50:58,788 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 23:50:58,805 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-25 23:50:58,819 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 23:50:58,820 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 23:50:58,820 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:50:58,821 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 23:50:58,822 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 23:50:58,823 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 23:50:58,823 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 23:50:58,824 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:50:58,825 WARN L623 FunctionHandler]: Unknown extern function __platform_driver_register [2022-11-25 23:50:58,826 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-11-25 23:50:58,874 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-25 23:50:58,874 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:50:58,883 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 23:50:58,997 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_52219860-2d6a-4315-9454-c8778a360693/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-smsc-smsc911x.cil.i[351362,351375] [2022-11-25 23:50:59,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:50:59,073 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:50:59,194 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 23:50:59,195 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-25 23:50:59,195 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 23:50:59,196 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-25 23:50:59,196 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 23:50:59,200 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-25 23:50:59,201 WARN L623 FunctionHandler]: Unknown extern function skb_tstamp_tx [2022-11-25 23:50:59,202 WARN L623 FunctionHandler]: Unknown extern function skb_clone_tx_timestamp [2022-11-25 23:50:59,204 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-25 23:50:59,204 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:50:59,207 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 23:50:59,207 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 23:50:59,208 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:50:59,209 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:50:59,213 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-11-25 23:50:59,214 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-25 23:50:59,216 WARN L623 FunctionHandler]: Unknown extern function mdiobus_alloc_size [2022-11-25 23:50:59,217 WARN L623 FunctionHandler]: Unknown extern function mdiobus_read [2022-11-25 23:50:59,217 WARN L623 FunctionHandler]: Unknown extern function mdiobus_write [2022-11-25 23:50:59,222 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:59,285 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:59,291 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:59,292 WARN L623 FunctionHandler]: Unknown extern function iowrite32_rep [2022-11-25 23:50:59,293 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:59,294 WARN L623 FunctionHandler]: Unknown extern function iowrite32_rep [2022-11-25 23:50:59,296 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:59,297 WARN L623 FunctionHandler]: Unknown extern function ioread32_rep [2022-11-25 23:50:59,302 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:59,303 WARN L623 FunctionHandler]: Unknown extern function ioread32_rep [2022-11-25 23:50:59,304 WARN L623 FunctionHandler]: Unknown extern function regulator_bulk_enable [2022-11-25 23:50:59,305 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:50:59,306 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:50:59,307 WARN L623 FunctionHandler]: Unknown extern function regulator_bulk_disable [2022-11-25 23:50:59,311 WARN L623 FunctionHandler]: Unknown extern function regulator_bulk_get [2022-11-25 23:50:59,311 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:50:59,312 WARN L623 FunctionHandler]: Unknown extern function clk_get [2022-11-25 23:50:59,312 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-25 23:50:59,313 WARN L623 FunctionHandler]: Unknown extern function regulator_bulk_free [2022-11-25 23:50:59,314 WARN L623 FunctionHandler]: Unknown extern function clk_put [2022-11-25 23:50:59,315 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:50:59,316 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:50:59,318 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:50:59,320 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:59,322 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:59,325 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:59,326 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:59,339 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:59,340 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:59,347 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:50:59,348 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:50:59,351 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:59,352 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:59,353 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:59,361 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:59,363 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:59,367 WARN L623 FunctionHandler]: Unknown extern function phy_find_first [2022-11-25 23:50:59,367 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:50:59,368 WARN L623 FunctionHandler]: Unknown extern function phy_connect_direct [2022-11-25 23:50:59,369 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:50:59,369 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:50:59,377 WARN L623 FunctionHandler]: Unknown extern function mdiobus_register [2022-11-25 23:50:59,377 WARN L623 FunctionHandler]: Unknown extern function mdiobus_unregister [2022-11-25 23:50:59,378 WARN L623 FunctionHandler]: Unknown extern function mdiobus_free [2022-11-25 23:50:59,383 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:59,386 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-11-25 23:50:59,396 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:50:59,396 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 23:50:59,396 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-11-25 23:50:59,397 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-25 23:50:59,400 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-11-25 23:50:59,401 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:50:59,407 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:59,407 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:59,408 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:59,409 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:59,410 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:59,412 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:59,417 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:50:59,419 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:59,422 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:50:59,423 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-25 23:50:59,424 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:50:59,425 WARN L623 FunctionHandler]: Unknown extern function phy_start [2022-11-25 23:50:59,428 WARN L623 FunctionHandler]: Unknown extern function phy_stop [2022-11-25 23:50:59,437 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:50:59,443 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:59,448 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-11-25 23:50:59,448 WARN L623 FunctionHandler]: Unknown extern function disable_irq [2022-11-25 23:50:59,449 WARN L623 FunctionHandler]: Unknown extern function enable_irq [2022-11-25 23:50:59,451 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:50:59,452 WARN L623 FunctionHandler]: Unknown extern function phy_mii_ioctl [2022-11-25 23:50:59,453 WARN L623 FunctionHandler]: Unknown extern function phy_ethtool_gset [2022-11-25 23:50:59,454 WARN L623 FunctionHandler]: Unknown extern function phy_ethtool_sset [2022-11-25 23:50:59,454 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:50:59,455 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:50:59,457 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 23:50:59,458 WARN L623 FunctionHandler]: Unknown extern function phy_start_aneg [2022-11-25 23:50:59,464 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:50:59,470 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:50:59,471 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 23:50:59,480 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:50:59,481 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:50:59,482 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:59,482 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-25 23:50:59,486 WARN L623 FunctionHandler]: Unknown extern function ether_setup [2022-11-25 23:50:59,489 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-11-25 23:50:59,491 WARN L623 FunctionHandler]: Unknown extern function phy_disconnect [2022-11-25 23:50:59,493 WARN L623 FunctionHandler]: Unknown extern function mdiobus_unregister [2022-11-25 23:50:59,494 WARN L623 FunctionHandler]: Unknown extern function mdiobus_free [2022-11-25 23:50:59,494 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource_byname [2022-11-25 23:50:59,495 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-11-25 23:50:59,495 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-25 23:50:59,495 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:50:59,497 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:50:59,497 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource_byname [2022-11-25 23:50:59,502 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-11-25 23:50:59,503 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:50:59,503 WARN L623 FunctionHandler]: Unknown extern function platform_get_resource [2022-11-25 23:50:59,504 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:50:59,504 WARN L623 FunctionHandler]: Unknown extern function __request_region [2022-11-25 23:50:59,506 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-11-25 23:50:59,510 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 23:50:59,512 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-25 23:50:59,513 WARN L623 FunctionHandler]: Unknown extern function __release_region [2022-11-25 23:50:59,519 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 23:50:59,530 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-11-25 23:50:59,531 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_ts_info [2022-11-25 23:50:59,531 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 23:50:59,532 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 23:50:59,536 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 23:50:59,540 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 23:50:59,540 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 23:50:59,548 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 23:50:59,588 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-25 23:50:59,668 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 23:50:59,669 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 23:50:59,669 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:50:59,670 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 23:50:59,671 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 23:50:59,672 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 23:50:59,672 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-25 23:50:59,673 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:50:59,673 WARN L623 FunctionHandler]: Unknown extern function __platform_driver_register [2022-11-25 23:50:59,674 WARN L623 FunctionHandler]: Unknown extern function platform_driver_unregister [2022-11-25 23:50:59,678 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-25 23:50:59,678 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 23:50:59,679 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 23:50:59,687 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_52219860-2d6a-4315-9454-c8778a360693/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-smsc-smsc911x.cil.i[351362,351375] [2022-11-25 23:50:59,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:50:59,997 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:50:59,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:59 WrapperNode [2022-11-25 23:50:59,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:50:59,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:50:59,999 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:50:59,999 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:51:00,007 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:59" (1/1) ... [2022-11-25 23:51:00,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:59" (1/1) ... [2022-11-25 23:51:00,376 INFO L138 Inliner]: procedures = 415, calls = 1897, calls flagged for inlining = 249, calls inlined = 236, statements flattened = 5800 [2022-11-25 23:51:00,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:51:00,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:51:00,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:51:00,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:51:00,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:59" (1/1) ... [2022-11-25 23:51:00,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:59" (1/1) ... [2022-11-25 23:51:00,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:59" (1/1) ... [2022-11-25 23:51:00,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:59" (1/1) ... [2022-11-25 23:51:00,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:59" (1/1) ... [2022-11-25 23:51:00,596 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:59" (1/1) ... [2022-11-25 23:51:00,634 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:59" (1/1) ... [2022-11-25 23:51:00,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:59" (1/1) ... [2022-11-25 23:51:00,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:51:00,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:51:00,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:51:00,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:51:00,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:59" (1/1) ... [2022-11-25 23:51:00,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:51:00,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52219860-2d6a-4315-9454-c8778a360693/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:51:00,730 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52219860-2d6a-4315-9454-c8778a360693/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:51:00,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52219860-2d6a-4315-9454-c8778a360693/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:51:00,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 23:51:00,769 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 23:51:00,769 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 23:51:00,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 23:51:00,769 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-25 23:51:00,769 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-25 23:51:00,769 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-25 23:51:00,769 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-25 23:51:00,769 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mii_read [2022-11-25 23:51:00,769 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mii_read [2022-11-25 23:51:00,770 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_resume [2022-11-25 23:51:00,770 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_resume [2022-11-25 23:51:00,770 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-25 23:51:00,770 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-25 23:51:00,770 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_drv_probe [2022-11-25 23:51:00,770 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_drv_probe [2022-11-25 23:51:00,770 INFO L130 BoogieDeclarations]: Found specification of procedure no_printk [2022-11-25 23:51:00,770 INFO L138 BoogieDeclarations]: Found implementation of procedure no_printk [2022-11-25 23:51:00,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-25 23:51:00,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-25 23:51:00,771 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-25 23:51:00,771 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-25 23:51:00,771 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-25 23:51:00,771 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-25 23:51:00,771 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-25 23:51:00,771 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-25 23:51:00,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-25 23:51:00,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-25 23:51:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-25 23:51:00,772 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-25 23:51:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_set_multicast_list [2022-11-25 23:51:00,772 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_set_multicast_list [2022-11-25 23:51:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_set_hw_mac_address [2022-11-25 23:51:00,772 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_set_hw_mac_address [2022-11-25 23:51:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write [2022-11-25 23:51:00,772 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write [2022-11-25 23:51:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-11-25 23:51:00,772 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-11-25 23:51:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:51:00,772 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-25 23:51:00,773 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-25 23:51:00,773 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_drv_remove [2022-11-25 23:51:00,773 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_drv_remove [2022-11-25 23:51:00,773 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_multicast_update [2022-11-25 23:51:00,773 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_multicast_update [2022-11-25 23:51:00,773 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-25 23:51:00,773 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-25 23:51:00,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 23:51:00,773 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-25 23:51:00,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-25 23:51:00,773 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-25 23:51:00,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-25 23:51:00,774 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_writefifo [2022-11-25 23:51:00,774 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_writefifo [2022-11-25 23:51:00,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 23:51:00,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-25 23:51:00,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-25 23:51:00,774 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_irqhandler [2022-11-25 23:51:00,774 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_irqhandler [2022-11-25 23:51:00,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:51:00,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 23:51:00,775 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 23:51:00,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2022-11-25 23:51:00,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2022-11-25 23:51:00,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-25 23:51:00,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-25 23:51:00,775 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_disable_resources [2022-11-25 23:51:00,775 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_disable_resources [2022-11-25 23:51:00,775 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_get_rxstatus [2022-11-25 23:51:00,775 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_get_rxstatus [2022-11-25 23:51:00,776 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_read [2022-11-25 23:51:00,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_read [2022-11-25 23:51:00,776 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_ethtool_getregslen [2022-11-25 23:51:00,776 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_ethtool_getregslen [2022-11-25 23:51:00,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:51:00,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-25 23:51:00,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-25 23:51:00,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-25 23:51:00,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-25 23:51:00,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-25 23:51:00,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-25 23:51:00,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-25 23:51:00,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-25 23:51:00,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:51:00,777 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-25 23:51:00,777 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-25 23:51:00,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-25 23:51:00,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-25 23:51:00,777 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-25 23:51:00,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-25 23:51:00,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:51:00,777 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 23:51:00,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-25 23:51:00,777 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-25 23:51:00,778 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-25 23:51:00,778 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-25 23:51:00,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-25 23:51:00,778 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mii_write [2022-11-25 23:51:00,778 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mii_write [2022-11-25 23:51:00,778 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mac_complete [2022-11-25 23:51:00,778 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mac_complete [2022-11-25 23:51:00,778 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2022-11-25 23:51:00,778 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2022-11-25 23:51:00,778 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-25 23:51:00,778 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-25 23:51:00,779 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-25 23:51:00,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-25 23:51:00,779 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32_rep [2022-11-25 23:51:00,779 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32_rep [2022-11-25 23:51:00,779 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-25 23:51:00,779 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-25 23:51:00,779 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource_byname [2022-11-25 23:51:00,779 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource_byname [2022-11-25 23:51:00,779 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-25 23:51:00,779 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-25 23:51:00,779 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-25 23:51:00,780 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-25 23:51:00,780 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-25 23:51:00,780 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-25 23:51:00,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:51:00,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:51:00,780 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-25 23:51:00,780 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-25 23:51:00,780 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-25 23:51:00,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-25 23:51:00,780 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_get_txstatus [2022-11-25 23:51:00,780 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_get_txstatus [2022-11-25 23:51:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-25 23:51:00,781 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-25 23:51:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2022-11-25 23:51:00,781 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2022-11-25 23:51:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 23:51:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 23:51:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 23:51:00,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 23:51:00,781 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_readfifo [2022-11-25 23:51:00,781 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_readfifo [2022-11-25 23:51:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_open [2022-11-25 23:51:00,782 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_open [2022-11-25 23:51:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2022-11-25 23:51:00,782 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2022-11-25 23:51:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_ethtool_get_eeprom_len [2022-11-25 23:51:00,782 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_ethtool_get_eeprom_len [2022-11-25 23:51:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_rx_readfifo_shift [2022-11-25 23:51:00,782 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_rx_readfifo_shift [2022-11-25 23:51:00,782 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_suspend [2022-11-25 23:51:00,782 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_suspend [2022-11-25 23:51:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_read_mac_address [2022-11-25 23:51:00,783 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_read_mac_address [2022-11-25 23:51:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mac_write [2022-11-25 23:51:00,783 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mac_write [2022-11-25 23:51:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read [2022-11-25 23:51:00,783 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read [2022-11-25 23:51:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 23:51:00,783 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 23:51:00,783 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-25 23:51:00,783 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-25 23:51:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-25 23:51:00,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-25 23:51:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_write [2022-11-25 23:51:00,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_write [2022-11-25 23:51:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:51:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-25 23:51:00,784 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-25 23:51:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:51:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_reg_write [2022-11-25 23:51:00,784 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_reg_write [2022-11-25 23:51:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_ethtool_nwayreset [2022-11-25 23:51:00,785 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_ethtool_nwayreset [2022-11-25 23:51:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_free_resources [2022-11-25 23:51:00,785 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_free_resources [2022-11-25 23:51:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_disable_irq_chip [2022-11-25 23:51:00,785 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_disable_irq_chip [2022-11-25 23:51:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 23:51:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-25 23:51:00,785 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-25 23:51:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_eeprom_send_cmd [2022-11-25 23:51:00,786 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_eeprom_send_cmd [2022-11-25 23:51:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-25 23:51:00,786 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-25 23:51:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_phy_adjust_link [2022-11-25 23:51:00,786 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_phy_adjust_link [2022-11-25 23:51:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_reg_read [2022-11-25 23:51:00,786 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_reg_read [2022-11-25 23:51:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-25 23:51:00,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-25 23:51:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-25 23:51:00,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-25 23:51:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_update_txcounters [2022-11-25 23:51:00,787 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_update_txcounters [2022-11-25 23:51:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_read_shift [2022-11-25 23:51:00,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_read_shift [2022-11-25 23:51:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-25 23:51:00,787 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-25 23:51:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure __smsc911x_reg_write_shift [2022-11-25 23:51:00,787 INFO L138 BoogieDeclarations]: Found implementation of procedure __smsc911x_reg_write_shift [2022-11-25 23:51:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-25 23:51:00,788 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-25 23:51:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-25 23:51:00,788 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-25 23:51:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-25 23:51:00,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-25 23:51:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-25 23:51:00,788 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-25 23:51:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_phy_enable_external [2022-11-25 23:51:00,788 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_phy_enable_external [2022-11-25 23:51:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:51:00,789 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_mac_read [2022-11-25 23:51:00,789 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_mac_read [2022-11-25 23:51:00,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 23:51:00,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 23:51:00,789 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-25 23:51:00,789 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-25 23:51:00,789 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-25 23:51:00,789 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-25 23:51:00,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_smsc911x_cleanup_module_14_2 [2022-11-25 23:51:00,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_smsc911x_cleanup_module_14_2 [2022-11-25 23:51:00,790 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_soft_reset [2022-11-25 23:51:00,790 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_soft_reset [2022-11-25 23:51:00,790 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_eeprom_enable_access [2022-11-25 23:51:00,790 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_eeprom_enable_access [2022-11-25 23:51:00,790 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2022-11-25 23:51:00,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2022-11-25 23:51:00,790 INFO L130 BoogieDeclarations]: Found specification of procedure spin_is_locked [2022-11-25 23:51:00,790 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_is_locked [2022-11-25 23:51:00,790 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_stop [2022-11-25 23:51:00,790 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_stop [2022-11-25 23:51:00,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-25 23:51:00,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-25 23:51:00,791 INFO L130 BoogieDeclarations]: Found specification of procedure smsc911x_tx_writefifo_shift [2022-11-25 23:51:00,791 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc911x_tx_writefifo_shift [2022-11-25 23:51:00,791 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-25 23:51:00,791 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-25 23:51:00,791 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-25 23:51:00,791 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-25 23:51:00,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:51:00,791 INFO L130 BoogieDeclarations]: Found specification of procedure resource_size [2022-11-25 23:51:00,792 INFO L138 BoogieDeclarations]: Found implementation of procedure resource_size [2022-11-25 23:51:00,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-25 23:51:00,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-25 23:51:00,792 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-25 23:51:00,792 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-25 23:51:01,862 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:51:01,865 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:51:02,240 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 23:51:06,676 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-25 23:51:06,882 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:51:08,728 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:51:08,728 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-25 23:51:08,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:51:08 BoogieIcfgContainer [2022-11-25 23:51:08,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:51:08,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:51:08,739 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:51:08,743 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:51:08,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:50:55" (1/3) ... [2022-11-25 23:51:08,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63ec5e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:51:08, skipping insertion in model container [2022-11-25 23:51:08,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:50:59" (2/3) ... [2022-11-25 23:51:08,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63ec5e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:51:08, skipping insertion in model container [2022-11-25 23:51:08,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:51:08" (3/3) ... [2022-11-25 23:51:08,746 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-ethernet-smsc-smsc911x.cil.i [2022-11-25 23:51:08,771 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:51:08,772 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:51:08,898 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:51:08,906 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;@351a81df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:51:08,907 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:51:08,978 INFO L276 IsEmpty]: Start isEmpty. Operand has 2079 states, 1234 states have (on average 1.3095623987034035) internal successors, (1616), 1268 states have internal predecessors, (1616), 734 states have call successors, (734), 113 states have call predecessors, (734), 112 states have return successors, (725), 716 states have call predecessors, (725), 725 states have call successors, (725) [2022-11-25 23:51:09,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-11-25 23:51:09,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:51:09,005 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:51:09,006 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 23:51:09,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:51:09,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1515848531, now seen corresponding path program 1 times [2022-11-25 23:51:09,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:51:09,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484141302] [2022-11-25 23:51:09,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:51:09,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:51:09,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:51:10,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2022-11-25 23:51:10,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:51:10,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484141302] [2022-11-25 23:51:10,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484141302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:51:10,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:51:10,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:51:10,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560921765] [2022-11-25 23:51:10,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:51:10,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:51:10,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:51:10,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:51:10,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:51:10,120 INFO L87 Difference]: Start difference. First operand has 2079 states, 1234 states have (on average 1.3095623987034035) internal successors, (1616), 1268 states have internal predecessors, (1616), 734 states have call successors, (734), 113 states have call predecessors, (734), 112 states have return successors, (725), 716 states have call predecessors, (725), 725 states have call successors, (725) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-25 23:51:12,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:51:12,275 INFO L93 Difference]: Finished difference Result 6074 states and 9452 transitions. [2022-11-25 23:51:12,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:51:12,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 211 [2022-11-25 23:51:12,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:51:12,338 INFO L225 Difference]: With dead ends: 6074 [2022-11-25 23:51:12,338 INFO L226 Difference]: Without dead ends: 4021 [2022-11-25 23:51:12,370 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 23:51:12,374 INFO L413 NwaCegarLoop]: 3370 mSDtfsCounter, 2927 mSDsluCounter, 2648 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2927 SdHoareTripleChecker+Valid, 6018 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:51:12,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2927 Valid, 6018 Invalid, 755 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-25 23:51:12,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4021 states. [2022-11-25 23:51:12,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4021 to 4021. [2022-11-25 23:51:12,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4021 states, 2395 states have (on average 1.3002087682672234) internal successors, (3114), 2464 states have internal predecessors, (3114), 1405 states have call successors, (1405), 221 states have call predecessors, (1405), 220 states have return successors, (1401), 1383 states have call predecessors, (1401), 1401 states have call successors, (1401) [2022-11-25 23:51:12,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4021 states to 4021 states and 5920 transitions. [2022-11-25 23:51:12,884 INFO L78 Accepts]: Start accepts. Automaton has 4021 states and 5920 transitions. Word has length 211 [2022-11-25 23:51:12,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:51:12,890 INFO L495 AbstractCegarLoop]: Abstraction has 4021 states and 5920 transitions. [2022-11-25 23:51:12,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-25 23:51:12,890 INFO L276 IsEmpty]: Start isEmpty. Operand 4021 states and 5920 transitions. [2022-11-25 23:51:12,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-11-25 23:51:12,921 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:51:12,922 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:51:12,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:51:12,922 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 23:51:12,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:51:12,923 INFO L85 PathProgramCache]: Analyzing trace with hash 467925056, now seen corresponding path program 1 times [2022-11-25 23:51:12,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:51:12,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777733206] [2022-11-25 23:51:12,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:51:12,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:51:13,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:51:13,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1559 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1559 trivial. 0 not checked. [2022-11-25 23:51:13,813 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:51:13,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777733206] [2022-11-25 23:51:13,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777733206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:51:13,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:51:13,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:51:13,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810115513] [2022-11-25 23:51:13,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:51:13,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:51:13,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:51:13,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:51:13,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:51:13,819 INFO L87 Difference]: Start difference. First operand 4021 states and 5920 transitions. Second operand has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-25 23:51:15,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:51:15,754 INFO L93 Difference]: Finished difference Result 4027 states and 5925 transitions. [2022-11-25 23:51:15,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:51:15,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 253 [2022-11-25 23:51:15,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:51:15,793 INFO L225 Difference]: With dead ends: 4027 [2022-11-25 23:51:15,794 INFO L226 Difference]: Without dead ends: 4023 [2022-11-25 23:51:15,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:51:15,800 INFO L413 NwaCegarLoop]: 2655 mSDtfsCounter, 2966 mSDsluCounter, 5307 mSDsCounter, 0 mSdLazyCounter, 1104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2967 SdHoareTripleChecker+Valid, 7962 SdHoareTripleChecker+Invalid, 1105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:51:15,801 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2967 Valid, 7962 Invalid, 1105 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1104 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-25 23:51:15,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4023 states. [2022-11-25 23:51:16,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4023 to 4023. [2022-11-25 23:51:16,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4023 states, 2397 states have (on average 1.2995410930329578) internal successors, (3115), 2465 states have internal predecessors, (3115), 1405 states have call successors, (1405), 222 states have call predecessors, (1405), 220 states have return successors, (1401), 1383 states have call predecessors, (1401), 1401 states have call successors, (1401) [2022-11-25 23:51:16,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4023 states to 4023 states and 5921 transitions. [2022-11-25 23:51:16,146 INFO L78 Accepts]: Start accepts. Automaton has 4023 states and 5921 transitions. Word has length 253 [2022-11-25 23:51:16,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:51:16,147 INFO L495 AbstractCegarLoop]: Abstraction has 4023 states and 5921 transitions. [2022-11-25 23:51:16,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.0) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (30), 3 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-25 23:51:16,148 INFO L276 IsEmpty]: Start isEmpty. Operand 4023 states and 5921 transitions. [2022-11-25 23:51:16,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-11-25 23:51:16,162 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:51:16,162 INFO L195 NwaCegarLoop]: trace histogram [23, 19, 19, 19, 19, 19, 19, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:51:16,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:51:16,164 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 23:51:16,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:51:16,176 INFO L85 PathProgramCache]: Analyzing trace with hash 243344149, now seen corresponding path program 1 times [2022-11-25 23:51:16,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:51:16,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013615553] [2022-11-25 23:51:16,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:51:16,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:51:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:51:17,119 INFO L134 CoverageAnalysis]: Checked inductivity of 1568 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1566 trivial. 0 not checked. [2022-11-25 23:51:17,120 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:51:17,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013615553] [2022-11-25 23:51:17,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013615553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:51:17,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:51:17,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 23:51:17,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994724831] [2022-11-25 23:51:17,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:51:17,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:51:17,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:51:17,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:51:17,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:51:17,127 INFO L87 Difference]: Start difference. First operand 4023 states and 5921 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-25 23:51:20,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:51:20,114 INFO L93 Difference]: Finished difference Result 8007 states and 11828 transitions. [2022-11-25 23:51:20,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:51:20,115 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 261 [2022-11-25 23:51:20,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:51:20,205 INFO L225 Difference]: With dead ends: 8007 [2022-11-25 23:51:20,205 INFO L226 Difference]: Without dead ends: 7985 [2022-11-25 23:51:20,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:51:20,217 INFO L413 NwaCegarLoop]: 3373 mSDtfsCounter, 2955 mSDsluCounter, 9363 mSDsCounter, 0 mSdLazyCounter, 1476 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2955 SdHoareTripleChecker+Valid, 12736 SdHoareTripleChecker+Invalid, 1479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-25 23:51:20,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2955 Valid, 12736 Invalid, 1479 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1476 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-25 23:51:20,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7985 states. [2022-11-25 23:51:20,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7985 to 7983. [2022-11-25 23:51:20,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7983 states, 4764 states have (on average 1.3007976490344249) internal successors, (6197), 4900 states have internal predecessors, (6197), 2780 states have call successors, (2780), 440 states have call predecessors, (2780), 438 states have return successors, (2820), 2738 states have call predecessors, (2820), 2776 states have call successors, (2820) [2022-11-25 23:51:21,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7983 states to 7983 states and 11797 transitions. [2022-11-25 23:51:21,029 INFO L78 Accepts]: Start accepts. Automaton has 7983 states and 11797 transitions. Word has length 261 [2022-11-25 23:51:21,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:51:21,032 INFO L495 AbstractCegarLoop]: Abstraction has 7983 states and 11797 transitions. [2022-11-25 23:51:21,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (33), 3 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-25 23:51:21,033 INFO L276 IsEmpty]: Start isEmpty. Operand 7983 states and 11797 transitions. [2022-11-25 23:51:21,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2022-11-25 23:51:21,089 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:51:21,090 INFO L195 NwaCegarLoop]: trace histogram [32, 25, 25, 25, 25, 25, 25, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1] [2022-11-25 23:51:21,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:51:21,090 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 23:51:21,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:51:21,092 INFO L85 PathProgramCache]: Analyzing trace with hash 2120840979, now seen corresponding path program 1 times [2022-11-25 23:51:21,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:51:21,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139449309] [2022-11-25 23:51:21,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:51:21,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:51:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:51:21,759 INFO L134 CoverageAnalysis]: Checked inductivity of 2910 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2902 trivial. 0 not checked. [2022-11-25 23:51:21,760 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:51:21,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139449309] [2022-11-25 23:51:21,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139449309] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:51:21,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:51:21,761 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:51:21,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903116366] [2022-11-25 23:51:21,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:51:21,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:51:21,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:51:21,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:51:21,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:51:21,766 INFO L87 Difference]: Start difference. First operand 7983 states and 11797 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (69), 2 states have call predecessors, (69), 1 states have return successors, (67), 3 states have call predecessors, (67), 3 states have call successors, (67) [2022-11-25 23:51:24,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:51:24,713 INFO L93 Difference]: Finished difference Result 23163 states and 34177 transitions. [2022-11-25 23:51:24,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:51:24,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (69), 2 states have call predecessors, (69), 1 states have return successors, (67), 3 states have call predecessors, (67), 3 states have call successors, (67) Word has length 496 [2022-11-25 23:51:24,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:51:24,904 INFO L225 Difference]: With dead ends: 23163 [2022-11-25 23:51:24,905 INFO L226 Difference]: Without dead ends: 15219 [2022-11-25 23:51:24,988 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 23:51:24,993 INFO L413 NwaCegarLoop]: 3878 mSDtfsCounter, 2655 mSDsluCounter, 2603 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2655 SdHoareTripleChecker+Valid, 6481 SdHoareTripleChecker+Invalid, 912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:51:24,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2655 Valid, 6481 Invalid, 912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-25 23:51:25,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15219 states. [2022-11-25 23:51:26,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15219 to 15198. [2022-11-25 23:51:26,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15198 states, 9018 states have (on average 1.2880904856952762) internal successors, (11616), 9287 states have internal predecessors, (11616), 5324 states have call successors, (5324), 857 states have call predecessors, (5324), 855 states have return successors, (5366), 5241 states have call predecessors, (5366), 5320 states have call successors, (5366) [2022-11-25 23:51:26,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15198 states to 15198 states and 22306 transitions. [2022-11-25 23:51:26,423 INFO L78 Accepts]: Start accepts. Automaton has 15198 states and 22306 transitions. Word has length 496 [2022-11-25 23:51:26,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:51:26,425 INFO L495 AbstractCegarLoop]: Abstraction has 15198 states and 22306 transitions. [2022-11-25 23:51:26,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (69), 2 states have call predecessors, (69), 1 states have return successors, (67), 3 states have call predecessors, (67), 3 states have call successors, (67) [2022-11-25 23:51:26,425 INFO L276 IsEmpty]: Start isEmpty. Operand 15198 states and 22306 transitions. [2022-11-25 23:51:26,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2022-11-25 23:51:26,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:51:26,525 INFO L195 NwaCegarLoop]: trace histogram [33, 25, 25, 25, 25, 25, 25, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:51:26,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:51:26,526 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 23:51:26,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:51:26,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1780718698, now seen corresponding path program 1 times [2022-11-25 23:51:26,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:51:26,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307126975] [2022-11-25 23:51:26,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:51:26,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:51:26,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:51:27,449 INFO L134 CoverageAnalysis]: Checked inductivity of 3036 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3028 trivial. 0 not checked. [2022-11-25 23:51:27,449 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:51:27,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307126975] [2022-11-25 23:51:27,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307126975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:51:27,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:51:27,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:51:27,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829913343] [2022-11-25 23:51:27,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:51:27,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:51:27,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:51:27,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:51:27,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:51:27,454 INFO L87 Difference]: Start difference. First operand 15198 states and 22306 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 3 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) [2022-11-25 23:51:31,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:51:31,043 INFO L93 Difference]: Finished difference Result 29811 states and 43660 transitions. [2022-11-25 23:51:31,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:51:31,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 3 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) Word has length 507 [2022-11-25 23:51:31,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:51:31,173 INFO L225 Difference]: With dead ends: 29811 [2022-11-25 23:51:31,174 INFO L226 Difference]: Without dead ends: 14652 [2022-11-25 23:51:31,264 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 23:51:31,268 INFO L413 NwaCegarLoop]: 4136 mSDtfsCounter, 2880 mSDsluCounter, 2631 mSDsCounter, 0 mSdLazyCounter, 894 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2880 SdHoareTripleChecker+Valid, 6767 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-25 23:51:31,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2880 Valid, 6767 Invalid, 907 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [13 Valid, 894 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-25 23:51:31,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14652 states. [2022-11-25 23:51:32,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14652 to 14635. [2022-11-25 23:51:32,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14635 states, 8755 states have (on average 1.287835522558538) internal successors, (11275), 9026 states have internal predecessors, (11275), 5013 states have call successors, (5013), 870 states have call predecessors, (5013), 866 states have return successors, (5053), 4922 states have call predecessors, (5053), 5009 states have call successors, (5053) [2022-11-25 23:51:32,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14635 states to 14635 states and 21341 transitions. [2022-11-25 23:51:32,524 INFO L78 Accepts]: Start accepts. Automaton has 14635 states and 21341 transitions. Word has length 507 [2022-11-25 23:51:32,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:51:32,525 INFO L495 AbstractCegarLoop]: Abstraction has 14635 states and 21341 transitions. [2022-11-25 23:51:32,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 3 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) [2022-11-25 23:51:32,526 INFO L276 IsEmpty]: Start isEmpty. Operand 14635 states and 21341 transitions. [2022-11-25 23:51:32,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2022-11-25 23:51:32,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:51:32,617 INFO L195 NwaCegarLoop]: trace histogram [33, 25, 25, 25, 25, 25, 25, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1] [2022-11-25 23:51:32,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:51:32,618 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 23:51:32,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:51:32,618 INFO L85 PathProgramCache]: Analyzing trace with hash -873299004, now seen corresponding path program 1 times [2022-11-25 23:51:32,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:51:32,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669735681] [2022-11-25 23:51:32,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:51:32,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:51:32,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:51:33,507 INFO L134 CoverageAnalysis]: Checked inductivity of 3041 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3024 trivial. 0 not checked. [2022-11-25 23:51:33,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:51:33,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669735681] [2022-11-25 23:51:33,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669735681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:51:33,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:51:33,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:51:33,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879078399] [2022-11-25 23:51:33,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:51:33,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:51:33,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:51:33,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:51:33,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:51:33,517 INFO L87 Difference]: Start difference. First operand 14635 states and 21341 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) [2022-11-25 23:51:36,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:51:36,738 INFO L93 Difference]: Finished difference Result 34217 states and 49948 transitions. [2022-11-25 23:51:36,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:51:36,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) Word has length 509 [2022-11-25 23:51:36,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:51:36,881 INFO L225 Difference]: With dead ends: 34217 [2022-11-25 23:51:36,881 INFO L226 Difference]: Without dead ends: 20593 [2022-11-25 23:51:36,953 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 23:51:36,954 INFO L413 NwaCegarLoop]: 5181 mSDtfsCounter, 2872 mSDsluCounter, 2632 mSDsCounter, 0 mSdLazyCounter, 1107 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2872 SdHoareTripleChecker+Valid, 7813 SdHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:51:36,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2872 Valid, 7813 Invalid, 1118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1107 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-25 23:51:36,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20593 states. [2022-11-25 23:51:38,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20593 to 20576. [2022-11-25 23:51:38,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20576 states, 12336 states have (on average 1.2887483787289236) internal successors, (15898), 12722 states have internal predecessors, (15898), 7013 states have call successors, (7013), 1232 states have call predecessors, (7013), 1226 states have return successors, (7074), 6881 states have call predecessors, (7074), 7009 states have call successors, (7074) [2022-11-25 23:51:38,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20576 states to 20576 states and 29985 transitions. [2022-11-25 23:51:38,931 INFO L78 Accepts]: Start accepts. Automaton has 20576 states and 29985 transitions. Word has length 509 [2022-11-25 23:51:38,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:51:38,933 INFO L495 AbstractCegarLoop]: Abstraction has 20576 states and 29985 transitions. [2022-11-25 23:51:38,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (73), 2 states have call predecessors, (73), 1 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) [2022-11-25 23:51:38,934 INFO L276 IsEmpty]: Start isEmpty. Operand 20576 states and 29985 transitions. [2022-11-25 23:51:39,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-11-25 23:51:39,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:51:39,049 INFO L195 NwaCegarLoop]: trace histogram [35, 25, 25, 25, 25, 25, 25, 12, 12, 5, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:51:39,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:51:39,050 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 23:51:39,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:51:39,050 INFO L85 PathProgramCache]: Analyzing trace with hash 774823067, now seen corresponding path program 1 times [2022-11-25 23:51:39,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:51:39,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277710131] [2022-11-25 23:51:39,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:51:39,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:51:39,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:51:41,917 INFO L134 CoverageAnalysis]: Checked inductivity of 3291 backedges. 51 proven. 10 refuted. 0 times theorem prover too weak. 3230 trivial. 0 not checked. [2022-11-25 23:51:41,918 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:51:41,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277710131] [2022-11-25 23:51:41,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277710131] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:51:41,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502188277] [2022-11-25 23:51:41,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:51:41,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:51:41,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52219860-2d6a-4315-9454-c8778a360693/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:51:41,923 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52219860-2d6a-4315-9454-c8778a360693/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:51:41,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52219860-2d6a-4315-9454-c8778a360693/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:51:43,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:51:43,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 4428 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 23:51:43,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:51:45,287 INFO L134 CoverageAnalysis]: Checked inductivity of 3291 backedges. 1402 proven. 0 refuted. 0 times theorem prover too weak. 1889 trivial. 0 not checked. [2022-11-25 23:51:45,287 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:51:45,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502188277] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:51:45,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 23:51:45,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-11-25 23:51:45,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726742977] [2022-11-25 23:51:45,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:51:45,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:51:45,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:51:45,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:51:45,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:51:45,292 INFO L87 Difference]: Start difference. First operand 20576 states and 29985 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (79), 3 states have call predecessors, (79), 3 states have call successors, (79) [2022-11-25 23:51:49,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:51:49,163 INFO L93 Difference]: Finished difference Result 59281 states and 86500 transitions. [2022-11-25 23:51:49,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:51:49,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (79), 3 states have call predecessors, (79), 3 states have call successors, (79) Word has length 553 [2022-11-25 23:51:49,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:51:49,473 INFO L225 Difference]: With dead ends: 59281 [2022-11-25 23:51:49,474 INFO L226 Difference]: Without dead ends: 39716 [2022-11-25 23:51:49,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 554 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-25 23:51:49,613 INFO L413 NwaCegarLoop]: 4227 mSDtfsCounter, 2720 mSDsluCounter, 2637 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2720 SdHoareTripleChecker+Valid, 6864 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:51:49,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2720 Valid, 6864 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-25 23:51:49,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39716 states. [2022-11-25 23:51:52,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39716 to 39706. [2022-11-25 23:51:52,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39706 states, 23842 states have (on average 1.2893213656572435) internal successors, (30740), 24570 states have internal predecessors, (30740), 13515 states have call successors, (13515), 2354 states have call predecessors, (13515), 2348 states have return successors, (13641), 13287 states have call predecessors, (13641), 13511 states have call successors, (13641) [2022-11-25 23:51:53,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39706 states to 39706 states and 57896 transitions. [2022-11-25 23:51:53,270 INFO L78 Accepts]: Start accepts. Automaton has 39706 states and 57896 transitions. Word has length 553 [2022-11-25 23:51:53,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:51:53,272 INFO L495 AbstractCegarLoop]: Abstraction has 39706 states and 57896 transitions. [2022-11-25 23:51:53,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (79), 3 states have call predecessors, (79), 3 states have call successors, (79) [2022-11-25 23:51:53,272 INFO L276 IsEmpty]: Start isEmpty. Operand 39706 states and 57896 transitions. [2022-11-25 23:51:53,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2022-11-25 23:51:53,404 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:51:53,405 INFO L195 NwaCegarLoop]: trace histogram [35, 25, 25, 25, 25, 25, 25, 11, 11, 5, 4, 4, 4, 4, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1] [2022-11-25 23:51:53,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52219860-2d6a-4315-9454-c8778a360693/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:51:53,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52219860-2d6a-4315-9454-c8778a360693/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 23:51:53,620 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 23:51:53,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:51:53,621 INFO L85 PathProgramCache]: Analyzing trace with hash -339363203, now seen corresponding path program 1 times [2022-11-25 23:51:53,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:51:53,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848641873] [2022-11-25 23:51:53,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:51:53,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:51:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:51:56,494 INFO L134 CoverageAnalysis]: Checked inductivity of 3263 backedges. 56 proven. 10 refuted. 0 times theorem prover too weak. 3197 trivial. 0 not checked. [2022-11-25 23:51:56,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:51:56,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848641873] [2022-11-25 23:51:56,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848641873] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:51:56,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305505785] [2022-11-25 23:51:56,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:51:56,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:51:56,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52219860-2d6a-4315-9454-c8778a360693/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:51:56,499 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52219860-2d6a-4315-9454-c8778a360693/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:51:56,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52219860-2d6a-4315-9454-c8778a360693/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 23:51:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:51:58,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 4348 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-25 23:51:58,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:51:58,944 INFO L134 CoverageAnalysis]: Checked inductivity of 3263 backedges. 44 proven. 1136 refuted. 0 times theorem prover too weak. 2083 trivial. 0 not checked. [2022-11-25 23:51:58,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:52:00,540 INFO L134 CoverageAnalysis]: Checked inductivity of 3263 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3261 trivial. 0 not checked. [2022-11-25 23:52:00,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305505785] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-25 23:52:00,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 23:52:00,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [7, 8] total 19 [2022-11-25 23:52:00,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103626924] [2022-11-25 23:52:00,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:52:00,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 23:52:00,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:52:00,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 23:52:00,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-11-25 23:52:00,548 INFO L87 Difference]: Start difference. First operand 39706 states and 57896 transitions. Second operand has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 7 states have internal predecessors, (143), 3 states have call successors, (76), 4 states have call predecessors, (76), 2 states have return successors, (74), 4 states have call predecessors, (74), 3 states have call successors, (74) [2022-11-25 23:52:18,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:52:18,272 INFO L93 Difference]: Finished difference Result 61945 states and 91068 transitions. [2022-11-25 23:52:18,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 23:52:18,273 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 7 states have internal predecessors, (143), 3 states have call successors, (76), 4 states have call predecessors, (76), 2 states have return successors, (74), 4 states have call predecessors, (74), 3 states have call successors, (74) Word has length 550 [2022-11-25 23:52:18,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:52:18,748 INFO L225 Difference]: With dead ends: 61945 [2022-11-25 23:52:18,748 INFO L226 Difference]: Without dead ends: 61886 [2022-11-25 23:52:18,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1111 GetRequests, 1089 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=455, Unknown=0, NotChecked=0, Total=552 [2022-11-25 23:52:18,782 INFO L413 NwaCegarLoop]: 3133 mSDtfsCounter, 10352 mSDsluCounter, 7954 mSDsCounter, 0 mSdLazyCounter, 7006 mSolverCounterSat, 6845 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10886 SdHoareTripleChecker+Valid, 11087 SdHoareTripleChecker+Invalid, 13851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 6845 IncrementalHoareTripleChecker+Valid, 7006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:52:18,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10886 Valid, 11087 Invalid, 13851 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [6845 Valid, 7006 Invalid, 0 Unknown, 0 Unchecked, 13.7s Time] [2022-11-25 23:52:18,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61886 states. [2022-11-25 23:52:23,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61886 to 61862. [2022-11-25 23:52:23,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61862 states, 37142 states have (on average 1.2908836357762101) internal successors, (47946), 38260 states have internal predecessors, (47946), 21217 states have call successors, (21217), 3494 states have call predecessors, (21217), 3502 states have return successors, (21743), 20883 states have call predecessors, (21743), 21213 states have call successors, (21743) [2022-11-25 23:52:23,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61862 states to 61862 states and 90906 transitions. [2022-11-25 23:52:23,945 INFO L78 Accepts]: Start accepts. Automaton has 61862 states and 90906 transitions. Word has length 550 [2022-11-25 23:52:23,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:52:23,947 INFO L495 AbstractCegarLoop]: Abstraction has 61862 states and 90906 transitions. [2022-11-25 23:52:23,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 15.88888888888889) internal successors, (143), 7 states have internal predecessors, (143), 3 states have call successors, (76), 4 states have call predecessors, (76), 2 states have return successors, (74), 4 states have call predecessors, (74), 3 states have call successors, (74) [2022-11-25 23:52:23,947 INFO L276 IsEmpty]: Start isEmpty. Operand 61862 states and 90906 transitions. [2022-11-25 23:52:24,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 580 [2022-11-25 23:52:24,104 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:52:24,105 INFO L195 NwaCegarLoop]: trace histogram [35, 25, 25, 25, 25, 25, 25, 11, 11, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:52:24,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52219860-2d6a-4315-9454-c8778a360693/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:52:24,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52219860-2d6a-4315-9454-c8778a360693/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:24,322 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:52:24,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:52:24,323 INFO L85 PathProgramCache]: Analyzing trace with hash 777123394, now seen corresponding path program 1 times [2022-11-25 23:52:24,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:52:24,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088368683] [2022-11-25 23:52:24,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:24,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:52:24,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:27,026 INFO L134 CoverageAnalysis]: Checked inductivity of 3311 backedges. 56 proven. 10 refuted. 0 times theorem prover too weak. 3245 trivial. 0 not checked. [2022-11-25 23:52:27,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:52:27,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088368683] [2022-11-25 23:52:27,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088368683] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:52:27,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290006218] [2022-11-25 23:52:27,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:52:27,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:52:27,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52219860-2d6a-4315-9454-c8778a360693/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:52:27,031 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52219860-2d6a-4315-9454-c8778a360693/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:52:27,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52219860-2d6a-4315-9454-c8778a360693/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 23:52:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:52:28,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 4539 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-25 23:52:28,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:52:29,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3311 backedges. 1374 proven. 19 refuted. 0 times theorem prover too weak. 1918 trivial. 0 not checked. [2022-11-25 23:52:29,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:52:30,581 INFO L134 CoverageAnalysis]: Checked inductivity of 3311 backedges. 37 proven. 21 refuted. 0 times theorem prover too weak. 3253 trivial. 0 not checked. [2022-11-25 23:52:30,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290006218] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:52:30,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2125288173] [2022-11-25 23:52:30,628 INFO L159 IcfgInterpreter]: Started Sifa with 253 locations of interest [2022-11-25 23:52:30,629 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:52:30,634 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:52:30,640 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:52:30,641 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:02:56,651 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 00:02:56,659 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