./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.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_88379dea-68b3-4ebb-a99e-d992ae08b2c1/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88379dea-68b3-4ebb-a99e-d992ae08b2c1/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_88379dea-68b3-4ebb-a99e-d992ae08b2c1/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88379dea-68b3-4ebb-a99e-d992ae08b2c1/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88379dea-68b3-4ebb-a99e-d992ae08b2c1/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_88379dea-68b3-4ebb-a99e-d992ae08b2c1/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 70a2ace6fc40caa55e586c636402c0a5dfab1c8b77b7cf0fdf6a2120173a773c --- 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 23:36:54,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:36:54,412 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:36:54,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:36:54,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:36:54,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:36:54,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:36:54,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:36:54,459 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:36:54,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:36:54,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:36:54,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:36:54,474 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:36:54,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:36:54,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:36:54,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:36:54,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:36:54,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:36:54,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:36:54,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:36:54,486 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:36:54,489 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:36:54,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:36:54,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:36:54,505 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:36:54,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:36:54,506 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:36:54,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:36:54,509 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:36:54,510 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:36:54,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:36:54,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:36:54,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:36:54,515 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:36:54,517 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:36:54,517 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:36:54,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:36:54,518 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:36:54,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:36:54,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:36:54,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:36:54,521 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88379dea-68b3-4ebb-a99e-d992ae08b2c1/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 23:36:54,566 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:36:54,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:36:54,567 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:36:54,567 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:36:54,568 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:36:54,568 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:36:54,568 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:36:54,568 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:36:54,568 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:36:54,569 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:36:54,569 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:36:54,569 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:36:54,569 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:36:54,569 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:36:54,570 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:36:54,570 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:36:54,570 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:36:54,570 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:36:54,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:36:54,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:36:54,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:36:54,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:36:54,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:36:54,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:36:54,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:36:54,574 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:36:54,574 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:36:54,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:36:54,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:36:54,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:36:54,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:36:54,576 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:36:54,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:36:54,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:36:54,577 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:36:54,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:36:54,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:36:54,578 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:36:54,579 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_88379dea-68b3-4ebb-a99e-d992ae08b2c1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88379dea-68b3-4ebb-a99e-d992ae08b2c1/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70a2ace6fc40caa55e586c636402c0a5dfab1c8b77b7cf0fdf6a2120173a773c [2022-11-25 23:36:54,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:36:54,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:36:54,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:36:54,919 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:36:54,920 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:36:54,921 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88379dea-68b3-4ebb-a99e-d992ae08b2c1/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i [2022-11-25 23:36:58,076 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:36:58,645 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:36:58,646 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88379dea-68b3-4ebb-a99e-d992ae08b2c1/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i [2022-11-25 23:36:58,695 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88379dea-68b3-4ebb-a99e-d992ae08b2c1/bin/utaipan-ByfvJB40ur/data/661fbf8ab/002e135bbc6742468be456429ca9fe89/FLAG45a7cb937 [2022-11-25 23:36:58,717 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88379dea-68b3-4ebb-a99e-d992ae08b2c1/bin/utaipan-ByfvJB40ur/data/661fbf8ab/002e135bbc6742468be456429ca9fe89 [2022-11-25 23:36:58,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:36:58,725 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:36:58,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:36:58,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:36:58,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:36:58,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:36:58" (1/1) ... [2022-11-25 23:36:58,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@775689a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:58, skipping insertion in model container [2022-11-25 23:36:58,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:36:58" (1/1) ... [2022-11-25 23:36:58,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:36:58,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:36:59,637 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 23:36:59,756 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 23:36:59,759 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 23:36:59,770 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:36:59,773 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:36:59,826 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 23:36:59,831 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-11-25 23:36:59,858 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 23:36:59,959 WARN L623 FunctionHandler]: Unknown extern function dev_alloc_skb [2022-11-25 23:36:59,961 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:36:59,961 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 23:36:59,962 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 23:36:59,967 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 23:36:59,986 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 23:36:59,987 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:36:59,989 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 23:36:59,990 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:36:59,995 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 23:36:59,996 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:37:00,004 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 23:37:00,013 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:37:00,028 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:37:00,036 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:37:00,049 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:37:00,055 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:37:00,057 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-11-25 23:37:00,067 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-11-25 23:37:00,082 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 23:37:00,083 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:37:00,089 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:37:00,101 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:37:00,105 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:37:00,136 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 23:37:00,140 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-25 23:37:00,152 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-25 23:37:00,170 WARN L623 FunctionHandler]: Unknown extern function strncpy [2022-11-25 23:37:00,171 WARN L623 FunctionHandler]: Unknown extern function strncpy [2022-11-25 23:37:00,186 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 23:37:00,186 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:37:00,191 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 23:37:00,197 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-25 23:37:00,197 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:37:00,198 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:37:00,198 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:37:00,198 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:37:00,205 WARN L623 FunctionHandler]: Unknown extern function usb_set_interface [2022-11-25 23:37:00,207 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:37:00,208 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 23:37:00,209 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:37:00,210 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:37:00,210 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 23:37:00,214 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:37:00,214 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:37:00,222 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:37:00,229 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:37:00,230 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 23:37:00,231 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:37:00,236 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 23:37:00,239 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:37:00,249 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:37:00,253 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 23:37:00,275 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 23:37:00,285 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 23:37:00,286 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 23:37:00,287 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 23:37:00,292 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_88379dea-68b3-4ebb-a99e-d992ae08b2c1/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i[199632,199645] [2022-11-25 23:37:00,305 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-11-25 23:37:00,308 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-11-25 23:37:00,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:37:00,407 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:37:00,550 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 23:37:00,556 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 23:37:00,557 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 23:37:00,558 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 23:37:00,559 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:37:00,564 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 23:37:00,565 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-11-25 23:37:00,569 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 23:37:00,587 WARN L623 FunctionHandler]: Unknown extern function dev_alloc_skb [2022-11-25 23:37:00,588 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 23:37:00,588 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 23:37:00,588 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 23:37:00,594 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 23:37:00,597 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 23:37:00,599 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 23:37:00,600 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 23:37:00,600 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:37:00,601 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 23:37:00,603 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:37:00,613 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 23:37:00,614 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:37:00,617 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:37:00,619 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:37:00,624 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-25 23:37:00,625 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:37:00,625 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-11-25 23:37:00,627 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-11-25 23:37:00,629 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 23:37:00,630 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:37:00,631 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:37:00,640 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 23:37:00,646 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:37:00,650 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 23:37:00,651 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-25 23:37:00,659 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-25 23:37:00,663 WARN L623 FunctionHandler]: Unknown extern function strncpy [2022-11-25 23:37:00,664 WARN L623 FunctionHandler]: Unknown extern function strncpy [2022-11-25 23:37:00,668 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 23:37:00,668 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:37:00,669 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 23:37:00,670 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-11-25 23:37:00,670 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:37:00,670 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:37:00,671 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:37:00,671 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 23:37:00,673 WARN L623 FunctionHandler]: Unknown extern function usb_set_interface [2022-11-25 23:37:00,674 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:37:00,674 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 23:37:00,675 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:37:00,676 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 23:37:00,677 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 23:37:00,678 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:37:00,679 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:37:00,682 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 23:37:00,687 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:37:00,689 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 23:37:00,690 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:37:00,691 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 23:37:00,691 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 23:37:00,694 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 23:37:00,694 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 23:37:00,696 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 23:37:00,698 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 23:37:00,698 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 23:37:00,699 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 23:37:00,700 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_88379dea-68b3-4ebb-a99e-d992ae08b2c1/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-usb-catc.ko.cil.out.i[199632,199645] [2022-11-25 23:37:00,701 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-11-25 23:37:00,703 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-11-25 23:37:00,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:37:01,163 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:37:01,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:01 WrapperNode [2022-11-25 23:37:01,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:37:01,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:37:01,166 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:37:01,166 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:37:01,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:01" (1/1) ... [2022-11-25 23:37:01,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:01" (1/1) ... [2022-11-25 23:37:01,368 INFO L138 Inliner]: procedures = 142, calls = 839, calls flagged for inlining = 59, calls inlined = 40, statements flattened = 1682 [2022-11-25 23:37:01,369 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:37:01,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:37:01,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:37:01,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:37:01,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:01" (1/1) ... [2022-11-25 23:37:01,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:01" (1/1) ... [2022-11-25 23:37:01,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:01" (1/1) ... [2022-11-25 23:37:01,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:01" (1/1) ... [2022-11-25 23:37:01,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:01" (1/1) ... [2022-11-25 23:37:01,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:01" (1/1) ... [2022-11-25 23:37:01,509 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:01" (1/1) ... [2022-11-25 23:37:01,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:01" (1/1) ... [2022-11-25 23:37:01,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:37:01,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:37:01,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:37:01,532 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:37:01,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:01" (1/1) ... [2022-11-25 23:37:01,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:37:01,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88379dea-68b3-4ebb-a99e-d992ae08b2c1/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:37:01,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88379dea-68b3-4ebb-a99e-d992ae08b2c1/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:37:01,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88379dea-68b3-4ebb-a99e-d992ae08b2c1/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:37:01,644 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-25 23:37:01,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-25 23:37:01,644 INFO L130 BoogieDeclarations]: Found specification of procedure catc_tx_run [2022-11-25 23:37:01,644 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_tx_run [2022-11-25 23:37:01,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 23:37:01,645 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-25 23:37:01,645 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-25 23:37:01,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 23:37:01,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 23:37:01,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:37:01,646 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-25 23:37:01,646 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-25 23:37:01,646 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-25 23:37:01,646 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-25 23:37:01,646 INFO L130 BoogieDeclarations]: Found specification of procedure catc_ctrl_run [2022-11-25 23:37:01,646 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_ctrl_run [2022-11-25 23:37:01,647 INFO L130 BoogieDeclarations]: Found specification of procedure catc_get_drvinfo [2022-11-25 23:37:01,647 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_get_drvinfo [2022-11-25 23:37:01,647 INFO L130 BoogieDeclarations]: Found specification of procedure catc_ctrl_msg [2022-11-25 23:37:01,647 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_ctrl_msg [2022-11-25 23:37:01,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 23:37:01,647 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 23:37:01,648 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-25 23:37:01,648 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-25 23:37:01,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 23:37:01,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 23:37:01,648 INFO L130 BoogieDeclarations]: Found specification of procedure catc_multicast [2022-11-25 23:37:01,648 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_multicast [2022-11-25 23:37:01,649 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-25 23:37:01,649 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-25 23:37:01,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:37:01,649 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-11-25 23:37:01,649 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-11-25 23:37:01,649 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2022-11-25 23:37:01,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2022-11-25 23:37:01,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-11-25 23:37:01,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-11-25 23:37:01,650 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-25 23:37:01,650 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-25 23:37:01,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 23:37:01,651 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 23:37:01,651 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-25 23:37:01,651 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-25 23:37:01,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 23:37:01,651 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-25 23:37:01,652 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-25 23:37:01,652 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-25 23:37:01,653 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-25 23:37:01,653 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-25 23:37:01,653 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-25 23:37:01,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:37:01,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:37:01,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 23:37:01,654 INFO L130 BoogieDeclarations]: Found specification of procedure catc_ctrl_async [2022-11-25 23:37:01,654 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_ctrl_async [2022-11-25 23:37:01,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 23:37:01,654 INFO L130 BoogieDeclarations]: Found specification of procedure catc_exit [2022-11-25 23:37:01,654 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_exit [2022-11-25 23:37:01,654 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-25 23:37:01,655 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-25 23:37:01,655 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-25 23:37:01,655 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-25 23:37:01,655 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-25 23:37:01,656 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-25 23:37:01,656 INFO L130 BoogieDeclarations]: Found specification of procedure catc_init [2022-11-25 23:37:01,656 INFO L138 BoogieDeclarations]: Found implementation of procedure catc_init [2022-11-25 23:37:01,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-25 23:37:01,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-25 23:37:01,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:37:01,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 23:37:01,658 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-25 23:37:01,658 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-25 23:37:01,659 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-25 23:37:01,659 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-25 23:37:01,660 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-25 23:37:01,660 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-25 23:37:01,660 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-25 23:37:01,660 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-25 23:37:01,660 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-25 23:37:01,661 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-25 23:37:01,661 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2022-11-25 23:37:01,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2022-11-25 23:37:01,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:37:01,661 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-25 23:37:01,661 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-25 23:37:01,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 23:37:01,663 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-25 23:37:01,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:37:01,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:37:02,155 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:37:02,158 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:37:03,211 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2022-11-25 23:37:03,286 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-25 23:37:03,297 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-25 23:37:04,746 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##191: assume false; [2022-11-25 23:37:04,746 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##192: assume !false; [2022-11-25 23:37:04,746 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2022-11-25 23:37:04,746 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2022-11-25 23:37:04,780 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:37:05,284 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:37:05,284 INFO L300 CfgBuilder]: Removed 30 assume(true) statements. [2022-11-25 23:37:05,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:37:05 BoogieIcfgContainer [2022-11-25 23:37:05,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:37:05,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:37:05,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:37:05,294 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:37:05,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:36:58" (1/3) ... [2022-11-25 23:37:05,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161296f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:37:05, skipping insertion in model container [2022-11-25 23:37:05,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:01" (2/3) ... [2022-11-25 23:37:05,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161296f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:37:05, skipping insertion in model container [2022-11-25 23:37:05,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:37:05" (3/3) ... [2022-11-25 23:37:05,297 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-net-usb-catc.ko.cil.out.i [2022-11-25 23:37:05,316 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:37:05,316 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:37:05,374 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:37:05,380 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;@14ad47dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:37:05,381 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:37:05,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 405 states, 246 states have (on average 1.3170731707317074) internal successors, (324), 259 states have internal predecessors, (324), 122 states have call successors, (122), 36 states have call predecessors, (122), 35 states have return successors, (121), 120 states have call predecessors, (121), 121 states have call successors, (121) [2022-11-25 23:37:05,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 23:37:05,394 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:37:05,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:37:05,395 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:37:05,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:37:05,400 INFO L85 PathProgramCache]: Analyzing trace with hash 275245242, now seen corresponding path program 1 times [2022-11-25 23:37:05,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:37:05,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491073192] [2022-11-25 23:37:05,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:37:05,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:37:05,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:37:05,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:37:05,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:37:05,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491073192] [2022-11-25 23:37:05,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491073192] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:37:05,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:37:05,970 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:37:05,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356308633] [2022-11-25 23:37:05,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:37:05,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:37:05,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:37:06,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:37:06,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:37:06,036 INFO L87 Difference]: Start difference. First operand has 405 states, 246 states have (on average 1.3170731707317074) internal successors, (324), 259 states have internal predecessors, (324), 122 states have call successors, (122), 36 states have call predecessors, (122), 35 states have return successors, (121), 120 states have call predecessors, (121), 121 states have call successors, (121) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:37:09,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:37:09,859 INFO L93 Difference]: Finished difference Result 1082 states and 1544 transitions. [2022-11-25 23:37:09,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:37:09,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-11-25 23:37:09,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:37:09,882 INFO L225 Difference]: With dead ends: 1082 [2022-11-25 23:37:09,882 INFO L226 Difference]: Without dead ends: 677 [2022-11-25 23:37:09,889 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 23:37:09,893 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 373 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:37:09,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 995 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-25 23:37:09,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states. [2022-11-25 23:37:10,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 673. [2022-11-25 23:37:10,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 414 states have (on average 1.2584541062801933) internal successors, (521), 428 states have internal predecessors, (521), 194 states have call successors, (194), 66 states have call predecessors, (194), 64 states have return successors, (191), 187 states have call predecessors, (191), 191 states have call successors, (191) [2022-11-25 23:37:10,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 906 transitions. [2022-11-25 23:37:10,090 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 906 transitions. Word has length 10 [2022-11-25 23:37:10,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:37:10,091 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 906 transitions. [2022-11-25 23:37:10,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:37:10,092 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 906 transitions. [2022-11-25 23:37:10,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 23:37:10,092 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:37:10,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:37:10,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:37:10,093 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:37:10,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:37:10,094 INFO L85 PathProgramCache]: Analyzing trace with hash -57591555, now seen corresponding path program 1 times [2022-11-25 23:37:10,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:37:10,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053701917] [2022-11-25 23:37:10,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:37:10,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:37:10,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:37:10,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:37:10,297 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:37:10,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053701917] [2022-11-25 23:37:10,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053701917] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:37:10,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:37:10,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:37:10,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830393776] [2022-11-25 23:37:10,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:37:10,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:37:10,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:37:10,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:37:10,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:37:10,306 INFO L87 Difference]: Start difference. First operand 673 states and 906 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:37:12,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:37:14,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:37:14,438 INFO L93 Difference]: Finished difference Result 1342 states and 1806 transitions. [2022-11-25 23:37:14,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:37:14,439 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-25 23:37:14,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:37:14,451 INFO L225 Difference]: With dead ends: 1342 [2022-11-25 23:37:14,452 INFO L226 Difference]: Without dead ends: 1333 [2022-11-25 23:37:14,453 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 23:37:14,454 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 534 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:37:14,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 1040 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 155 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2022-11-25 23:37:14,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1333 states. [2022-11-25 23:37:14,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1333 to 1326. [2022-11-25 23:37:14,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1326 states, 816 states have (on average 1.2536764705882353) internal successors, (1023), 842 states have internal predecessors, (1023), 383 states have call successors, (383), 129 states have call predecessors, (383), 126 states have return successors, (380), 370 states have call predecessors, (380), 380 states have call successors, (380) [2022-11-25 23:37:14,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1786 transitions. [2022-11-25 23:37:14,601 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1786 transitions. Word has length 11 [2022-11-25 23:37:14,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:37:14,602 INFO L495 AbstractCegarLoop]: Abstraction has 1326 states and 1786 transitions. [2022-11-25 23:37:14,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:37:14,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1786 transitions. [2022-11-25 23:37:14,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-25 23:37:14,605 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:37:14,605 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 23:37:14,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:37:14,606 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:37:14,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:37:14,606 INFO L85 PathProgramCache]: Analyzing trace with hash -499779171, now seen corresponding path program 1 times [2022-11-25 23:37:14,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:37:14,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724513304] [2022-11-25 23:37:14,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:37:14,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:37:14,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:37:14,799 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:37:14,799 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:37:14,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724513304] [2022-11-25 23:37:14,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724513304] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:37:14,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:37:14,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:37:14,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637080011] [2022-11-25 23:37:14,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:37:14,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:37:14,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:37:14,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:37:14,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:37:14,803 INFO L87 Difference]: Start difference. First operand 1326 states and 1786 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 23:37:16,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:37:16,485 INFO L93 Difference]: Finished difference Result 1328 states and 1787 transitions. [2022-11-25 23:37:16,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:37:16,486 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2022-11-25 23:37:16,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:37:16,495 INFO L225 Difference]: With dead ends: 1328 [2022-11-25 23:37:16,495 INFO L226 Difference]: Without dead ends: 1319 [2022-11-25 23:37:16,496 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 23:37:16,497 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 523 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-25 23:37:16,498 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 461 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-25 23:37:16,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2022-11-25 23:37:16,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 666. [2022-11-25 23:37:16,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666 states, 410 states have (on average 1.2463414634146341) internal successors, (511), 422 states have internal predecessors, (511), 192 states have call successors, (192), 65 states have call predecessors, (192), 63 states have return successors, (190), 186 states have call predecessors, (190), 190 states have call successors, (190) [2022-11-25 23:37:16,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666 states to 666 states and 893 transitions. [2022-11-25 23:37:16,567 INFO L78 Accepts]: Start accepts. Automaton has 666 states and 893 transitions. Word has length 27 [2022-11-25 23:37:16,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:37:16,568 INFO L495 AbstractCegarLoop]: Abstraction has 666 states and 893 transitions. [2022-11-25 23:37:16,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 23:37:16,568 INFO L276 IsEmpty]: Start isEmpty. Operand 666 states and 893 transitions. [2022-11-25 23:37:16,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-25 23:37:16,570 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:37:16,571 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:37:16,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:37:16,571 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:37:16,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:37:16,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1647487605, now seen corresponding path program 1 times [2022-11-25 23:37:16,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:37:16,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347986899] [2022-11-25 23:37:16,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:37:16,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:37:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:37:16,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:37:16,767 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:37:16,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347986899] [2022-11-25 23:37:16,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347986899] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:37:16,768 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:37:16,768 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:37:16,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615078247] [2022-11-25 23:37:16,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:37:16,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:37:16,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:37:16,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:37:16,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:37:16,770 INFO L87 Difference]: Start difference. First operand 666 states and 893 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 23:37:20,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:37:21,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:37:21,204 INFO L93 Difference]: Finished difference Result 1578 states and 2178 transitions. [2022-11-25 23:37:21,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:37:21,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2022-11-25 23:37:21,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:37:21,225 INFO L225 Difference]: With dead ends: 1578 [2022-11-25 23:37:21,225 INFO L226 Difference]: Without dead ends: 917 [2022-11-25 23:37:21,227 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 23:37:21,228 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 185 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:37:21,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 909 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 143 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-11-25 23:37:21,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2022-11-25 23:37:21,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 913. [2022-11-25 23:37:21,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 575 states have (on average 1.2747826086956522) internal successors, (733), 595 states have internal predecessors, (733), 274 states have call successors, (274), 65 states have call predecessors, (274), 63 states have return successors, (272), 266 states have call predecessors, (272), 272 states have call successors, (272) [2022-11-25 23:37:21,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1279 transitions. [2022-11-25 23:37:21,284 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1279 transitions. Word has length 35 [2022-11-25 23:37:21,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:37:21,284 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1279 transitions. [2022-11-25 23:37:21,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 23:37:21,285 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1279 transitions. [2022-11-25 23:37:21,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-25 23:37:21,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:37:21,288 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 23:37:21,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 23:37:21,289 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:37:21,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:37:21,290 INFO L85 PathProgramCache]: Analyzing trace with hash 2000378301, now seen corresponding path program 1 times [2022-11-25 23:37:21,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:37:21,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728441273] [2022-11-25 23:37:21,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:37:21,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:37:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:37:21,496 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:37:21,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:37:21,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728441273] [2022-11-25 23:37:21,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728441273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:37:21,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:37:21,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:37:21,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836767651] [2022-11-25 23:37:21,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:37:21,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:37:21,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:37:21,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:37:21,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:37:21,500 INFO L87 Difference]: Start difference. First operand 913 states and 1279 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 23:37:24,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:37:27,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:37:27,557 INFO L93 Difference]: Finished difference Result 1685 states and 2339 transitions. [2022-11-25 23:37:27,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:37:27,558 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 53 [2022-11-25 23:37:27,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:37:27,564 INFO L225 Difference]: With dead ends: 1685 [2022-11-25 23:37:27,564 INFO L226 Difference]: Without dead ends: 773 [2022-11-25 23:37:27,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:37:27,570 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 11 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1371 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:37:27,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1371 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2022-11-25 23:37:27,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2022-11-25 23:37:27,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 765. [2022-11-25 23:37:27,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 477 states have (on average 1.259958071278826) internal successors, (601), 493 states have internal predecessors, (601), 226 states have call successors, (226), 63 states have call predecessors, (226), 61 states have return successors, (224), 219 states have call predecessors, (224), 224 states have call successors, (224) [2022-11-25 23:37:27,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1051 transitions. [2022-11-25 23:37:27,619 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1051 transitions. Word has length 53 [2022-11-25 23:37:27,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:37:27,620 INFO L495 AbstractCegarLoop]: Abstraction has 765 states and 1051 transitions. [2022-11-25 23:37:27,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-25 23:37:27,620 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1051 transitions. [2022-11-25 23:37:27,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-11-25 23:37:27,625 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:37:27,625 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-25 23:37:27,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 23:37:27,626 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:37:27,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:37:27,627 INFO L85 PathProgramCache]: Analyzing trace with hash -817177854, now seen corresponding path program 1 times [2022-11-25 23:37:27,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:37:27,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335545670] [2022-11-25 23:37:27,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:37:27,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:37:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:37:28,521 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-11-25 23:37:28,521 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:37:28,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335545670] [2022-11-25 23:37:28,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335545670] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:37:28,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:37:28,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 23:37:28,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89135948] [2022-11-25 23:37:28,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:37:28,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 23:37:28,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:37:28,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 23:37:28,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-25 23:37:28,525 INFO L87 Difference]: Start difference. First operand 765 states and 1051 transitions. Second operand has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-25 23:37:29,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:37:32,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:37:34,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 23:37:41,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:37:41,334 INFO L93 Difference]: Finished difference Result 805 states and 1106 transitions. [2022-11-25 23:37:41,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 23:37:41,334 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 109 [2022-11-25 23:37:41,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:37:41,340 INFO L225 Difference]: With dead ends: 805 [2022-11-25 23:37:41,340 INFO L226 Difference]: Without dead ends: 767 [2022-11-25 23:37:41,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:37:41,342 INFO L413 NwaCegarLoop]: 456 mSDtfsCounter, 4 mSDsluCounter, 2108 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2564 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-11-25 23:37:41,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2564 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 666 Invalid, 1 Unknown, 0 Unchecked, 12.7s Time] [2022-11-25 23:37:41,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2022-11-25 23:37:41,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 765. [2022-11-25 23:37:41,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 477 states have (on average 1.2578616352201257) internal successors, (600), 493 states have internal predecessors, (600), 226 states have call successors, (226), 63 states have call predecessors, (226), 61 states have return successors, (224), 219 states have call predecessors, (224), 224 states have call successors, (224) [2022-11-25 23:37:41,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 1050 transitions. [2022-11-25 23:37:41,390 INFO L78 Accepts]: Start accepts. Automaton has 765 states and 1050 transitions. Word has length 109 [2022-11-25 23:37:41,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:37:41,391 INFO L495 AbstractCegarLoop]: Abstraction has 765 states and 1050 transitions. [2022-11-25 23:37:41,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-25 23:37:41,392 INFO L276 IsEmpty]: Start isEmpty. Operand 765 states and 1050 transitions. [2022-11-25 23:37:41,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-11-25 23:37:41,394 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:37:41,394 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-11-25 23:37:41,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 23:37:41,395 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:37:41,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:37:41,395 INFO L85 PathProgramCache]: Analyzing trace with hash -96327092, now seen corresponding path program 1 times [2022-11-25 23:37:41,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:37:41,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339312679] [2022-11-25 23:37:41,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:37:41,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:37:41,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:37:46,337 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-25 23:37:46,337 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:37:46,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339312679] [2022-11-25 23:37:46,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339312679] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:37:46,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097804596] [2022-11-25 23:37:46,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:37:46,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:37:46,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88379dea-68b3-4ebb-a99e-d992ae08b2c1/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:37:46,343 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88379dea-68b3-4ebb-a99e-d992ae08b2c1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:37:46,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88379dea-68b3-4ebb-a99e-d992ae08b2c1/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:37:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:37:47,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 1827 conjuncts, 112 conjunts are in the unsatisfiable core [2022-11-25 23:37:47,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:37:47,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-25 23:37:47,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-25 23:37:48,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 50 treesize of output 49 [2022-11-25 23:37:48,315 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 43 [2022-11-25 23:37:48,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-25 23:37:49,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 80 treesize of output 79 [2022-11-25 23:37:49,229 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 85 [2022-11-25 23:37:49,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-11-25 23:37:50,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 176 treesize of output 172 [2022-11-25 23:37:50,928 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:37:50,929 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 200 treesize of output 178 [2022-11-25 23:37:52,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 253 treesize of output 199 [2022-11-25 23:37:52,184 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-25 23:37:52,185 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 211 treesize of output 115 [2022-11-25 23:37:52,525 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 55 proven. 14 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 23:37:52,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:37:54,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 6 treesize of output 4 [2022-11-25 23:37:55,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 6 treesize of output 4 [2022-11-25 23:37:55,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097804596] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 23:37:55,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1010381044] [2022-11-25 23:37:55,479 INFO L159 IcfgInterpreter]: Started Sifa with 72 locations of interest [2022-11-25 23:37:55,479 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:37:55,484 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:37:55,491 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:37:55,492 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:37:56,989 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 121 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 61 [2022-11-25 23:37:57,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1774 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 266 [2022-11-25 23:37:57,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1055 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 201 [2022-11-25 23:38:18,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:18,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:18,475 INFO L217 Elim1Store]: Index analysis took 131 ms [2022-11-25 23:38:21,416 INFO L321 Elim1Store]: treesize reduction 1162, result has 25.4 percent of original size [2022-11-25 23:38:21,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 34 select indices, 34 select index equivalence classes, 500 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 93 case distinctions, treesize of input 184 treesize of output 517 [2022-11-25 23:38:21,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:22,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:22,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 31 select indices, 31 select index equivalence classes, 530 disjoint index pairs (out of 465 index pairs), introduced 31 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 259 [2022-11-25 23:38:26,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:38:26,587 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 [2022-11-25 23:38:29,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:29,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:29,211 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 34 select indices, 34 select index equivalence classes, 561 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 103 [2022-11-25 23:38:29,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:29,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:29,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 33 select indices, 33 select index equivalence classes, 530 disjoint index pairs (out of 528 index pairs), introduced 33 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 100 [2022-11-25 23:38:35,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:35,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:35,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 34 select indices, 34 select index equivalence classes, 561 disjoint index pairs (out of 561 index pairs), introduced 34 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 103 [2022-11-25 23:38:35,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:35,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:38:35,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 33 select indices, 33 select index equivalence classes, 530 disjoint index pairs (out of 528 index pairs), introduced 33 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 100 [2022-11-25 23:42:06,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:42:06,990 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:42:07,101 INFO L321 Elim1Store]: treesize reduction 165, result has 28.9 percent of original size [2022-11-25 23:42:07,101 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 83 [2022-11-25 23:42:07,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:42:07,253 INFO L321 Elim1Store]: treesize reduction 147, result has 36.6 percent of original size [2022-11-25 23:42:07,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 101 [2022-11-25 23:42:07,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:42:07,450 INFO L321 Elim1Store]: treesize reduction 159, result has 34.8 percent of original size [2022-11-25 23:42:07,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 94 [2022-11-25 23:42:09,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 18 treesize of output 19 [2022-11-25 23:42:09,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 18 treesize of output 19 [2022-11-25 23:42:09,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 26 treesize of output 11 [2022-11-25 23:42:10,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 23:42:10,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-25 23:42:10,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-25 23:42:11,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 23:42:11,246 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-25 23:42:11,265 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-25 23:42:11,814 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 23:42:11,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-25 23:42:11,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-25 23:42:12,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-25 23:42:12,443 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-25 23:42:12,500 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-25 23:43:37,348 INFO L197 IcfgInterpreter]: Interpreting procedure usb_free_urb with input of size 118 for LOIs [2022-11-25 23:43:37,723 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_blast_assert with input of size 125 for LOIs [2022-11-25 23:43:37,780 INFO L197 IcfgInterpreter]: Interpreting procedure spinlock_check with input of size 85 for LOIs [2022-11-25 23:43:37,791 INFO L197 IcfgInterpreter]: Interpreting procedure __raw_spin_lock_init with input of size 116 for LOIs [2022-11-25 23:43:37,887 INFO L197 IcfgInterpreter]: Interpreting procedure catc_init with input of size 1462 for LOIs [2022-11-25 23:43:39,007 INFO L197 IcfgInterpreter]: Interpreting procedure usb_alloc_urb with input of size 135 for LOIs [2022-11-25 23:43:40,492 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_undefined_pointer with input of size 119 for LOIs [2022-11-25 23:43:41,116 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 86 for LOIs [2022-11-25 23:43:41,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-25 23:43:41,171 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 [2022-11-25 23:43:41,184 INFO L197 IcfgInterpreter]: Interpreting procedure netdev_priv with input of size 1401 for LOIs [2022-11-25 23:43:46,427 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:44:08,602 WARN L233 SmtUtils]: Spent 16.24s on a formula simplification that was a NOOP. DAG size: 1462 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:44:44,511 WARN L233 SmtUtils]: Spent 34.59s on a formula simplification. DAG size of input: 1515 DAG size of output: 1512 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:45:01,868 WARN L233 SmtUtils]: Spent 16.06s on a formula simplification that was a NOOP. DAG size: 1468 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:45:19,259 WARN L233 SmtUtils]: Spent 16.03s on a formula simplification that was a NOOP. DAG size: 1468 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:45:36,796 WARN L233 SmtUtils]: Spent 16.12s on a formula simplification that was a NOOP. DAG size: 1468 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:45:54,486 WARN L233 SmtUtils]: Spent 16.26s on a formula simplification that was a NOOP. DAG size: 1474 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:46:13,072 WARN L233 SmtUtils]: Spent 16.34s on a formula simplification that was a NOOP. DAG size: 1476 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:46:30,965 WARN L233 SmtUtils]: Spent 16.37s on a formula simplification that was a NOOP. DAG size: 1480 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:46:49,119 WARN L233 SmtUtils]: Spent 16.61s on a formula simplification that was a NOOP. DAG size: 1482 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:47:07,293 WARN L233 SmtUtils]: Spent 16.52s on a formula simplification that was a NOOP. DAG size: 1484 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:47:25,672 WARN L233 SmtUtils]: Spent 16.57s on a formula simplification that was a NOOP. DAG size: 1486 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:47:44,079 WARN L233 SmtUtils]: Spent 16.71s on a formula simplification that was a NOOP. DAG size: 1488 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:48:02,653 WARN L233 SmtUtils]: Spent 16.80s on a formula simplification that was a NOOP. DAG size: 1490 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:48:21,237 WARN L233 SmtUtils]: Spent 16.73s on a formula simplification that was a NOOP. DAG size: 1492 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:48:40,073 WARN L233 SmtUtils]: Spent 16.90s on a formula simplification that was a NOOP. DAG size: 1494 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:48:58,768 WARN L233 SmtUtils]: Spent 16.54s on a formula simplification that was a NOOP. DAG size: 1478 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:49:44,670 WARN L233 SmtUtils]: Spent 43.57s on a formula simplification. DAG size of input: 1705 DAG size of output: 1576 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:50:31,701 WARN L233 SmtUtils]: Spent 44.63s on a formula simplification. DAG size of input: 1716 DAG size of output: 1587 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)