./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--block--loop.ko-entry_point.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_baa31404-c60c-4cfc-b8ff-81ba0934e718/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa31404-c60c-4cfc-b8ff-81ba0934e718/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_baa31404-c60c-4cfc-b8ff-81ba0934e718/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa31404-c60c-4cfc-b8ff-81ba0934e718/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--block--loop.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa31404-c60c-4cfc-b8ff-81ba0934e718/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_baa31404-c60c-4cfc-b8ff-81ba0934e718/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 b45d894549c3d959709f16d175c155effcb8f4008755bf9537dca57ce5b6aecf --- 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 [2022-11-26 01:04:19,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:04:19,829 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:04:19,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:04:19,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:04:19,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:04:19,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:04:19,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:04:19,874 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:04:19,875 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:04:19,876 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:04:19,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:04:19,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:04:19,883 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:04:19,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:04:19,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:04:19,889 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:04:19,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:04:19,898 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:04:19,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:04:19,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:04:19,910 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:04:19,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:04:19,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:04:19,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:04:19,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:04:19,923 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:04:19,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:04:19,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:04:19,925 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:04:19,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:04:19,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:04:19,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:04:19,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:04:19,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:04:19,929 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:04:19,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:04:19,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:04:19,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:04:19,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:04:19,931 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:04:19,932 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa31404-c60c-4cfc-b8ff-81ba0934e718/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 01:04:19,971 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:04:19,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:04:19,972 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:04:19,972 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:04:19,973 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:04:19,973 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:04:19,973 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:04:19,973 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:04:19,973 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:04:19,974 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 01:04:19,975 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:04:19,975 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:04:19,975 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 01:04:19,975 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 01:04:19,975 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:04:19,976 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 01:04:19,976 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 01:04:19,976 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 01:04:19,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:04:19,977 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 01:04:19,977 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:04:19,978 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:04:19,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:04:19,978 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:04:19,978 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:04:19,978 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:04:19,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:04:19,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:04:19,983 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:04:19,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:04:19,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:04:19,984 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 01:04:19,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:04:19,984 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:04:19,984 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 01:04:19,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 01:04:19,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:04:19,986 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:04:19,986 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_baa31404-c60c-4cfc-b8ff-81ba0934e718/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa31404-c60c-4cfc-b8ff-81ba0934e718/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b45d894549c3d959709f16d175c155effcb8f4008755bf9537dca57ce5b6aecf [2022-11-26 01:04:20,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:04:20,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:04:20,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:04:20,352 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:04:20,352 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:04:20,354 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa31404-c60c-4cfc-b8ff-81ba0934e718/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--block--loop.ko-entry_point.cil.out.i [2022-11-26 01:04:23,443 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:04:23,994 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:04:23,996 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa31404-c60c-4cfc-b8ff-81ba0934e718/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--block--loop.ko-entry_point.cil.out.i [2022-11-26 01:04:24,059 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa31404-c60c-4cfc-b8ff-81ba0934e718/bin/utaipan-ByfvJB40ur/data/ddd7a8ade/21960f79a6c3479a9b5e5863a646726f/FLAG7445e88e7 [2022-11-26 01:04:24,078 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa31404-c60c-4cfc-b8ff-81ba0934e718/bin/utaipan-ByfvJB40ur/data/ddd7a8ade/21960f79a6c3479a9b5e5863a646726f [2022-11-26 01:04:24,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:04:24,085 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:04:24,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:04:24,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:04:24,092 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:04:24,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:04:24" (1/1) ... [2022-11-26 01:04:24,094 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e4b6834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:24, skipping insertion in model container [2022-11-26 01:04:24,094 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:04:24" (1/1) ... [2022-11-26 01:04:24,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:04:24,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:04:24,880 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-26 01:04:24,922 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-11-26 01:04:24,975 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 01:04:25,036 WARN L623 FunctionHandler]: Unknown extern function __xadd_wrong_size [2022-11-26 01:04:25,055 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 01:04:25,070 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 01:04:25,099 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-26 01:04:25,104 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-26 01:04:25,215 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-11-26 01:04:25,249 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 01:04:25,254 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 01:04:25,257 WARN L623 FunctionHandler]: Unknown extern function idr_find_slowpath [2022-11-26 01:04:25,323 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 01:04:25,493 WARN L623 FunctionHandler]: Unknown extern function __sb_start_write [2022-11-26 01:04:25,497 WARN L623 FunctionHandler]: Unknown extern function __sb_end_write [2022-11-26 01:04:25,575 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-11-26 01:04:25,576 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-26 01:04:25,577 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-11-26 01:04:25,581 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-11-26 01:04:25,582 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-26 01:04:25,582 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-11-26 01:04:25,593 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 01:04:25,618 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-26 01:04:25,705 WARN L623 FunctionHandler]: Unknown extern function ___might_sleep [2022-11-26 01:04:25,706 WARN L623 FunctionHandler]: Unknown extern function _cond_resched [2022-11-26 01:04:25,725 WARN L623 FunctionHandler]: Unknown extern function bd_set_size [2022-11-26 01:04:25,726 WARN L623 FunctionHandler]: Unknown extern function kobject_uevent [2022-11-26 01:04:25,753 WARN L623 FunctionHandler]: Unknown extern function ___ratelimit [2022-11-26 01:04:25,753 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:04:25,758 WARN L623 FunctionHandler]: Unknown extern function iov_iter_bvec [2022-11-26 01:04:25,759 WARN L623 FunctionHandler]: Unknown extern function vfs_iter_write [2022-11-26 01:04:25,761 WARN L623 FunctionHandler]: Unknown extern function ___ratelimit [2022-11-26 01:04:25,762 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:04:25,769 WARN L623 FunctionHandler]: Unknown extern function ___might_sleep [2022-11-26 01:04:25,769 WARN L623 FunctionHandler]: Unknown extern function _cond_resched [2022-11-26 01:04:25,782 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-26 01:04:25,787 WARN L623 FunctionHandler]: Unknown extern function iov_iter_bvec [2022-11-26 01:04:25,788 WARN L623 FunctionHandler]: Unknown extern function vfs_iter_read [2022-11-26 01:04:25,789 WARN L623 FunctionHandler]: Unknown extern function zero_fill_bio [2022-11-26 01:04:25,790 WARN L623 FunctionHandler]: Unknown extern function ___might_sleep [2022-11-26 01:04:25,791 WARN L623 FunctionHandler]: Unknown extern function _cond_resched [2022-11-26 01:04:25,800 WARN L623 FunctionHandler]: Unknown extern function iov_iter_bvec [2022-11-26 01:04:25,801 WARN L623 FunctionHandler]: Unknown extern function vfs_iter_read [2022-11-26 01:04:25,803 WARN L623 FunctionHandler]: Unknown extern function zero_fill_bio [2022-11-26 01:04:25,806 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-26 01:04:25,817 WARN L623 FunctionHandler]: Unknown extern function vfs_fsync [2022-11-26 01:04:25,834 WARN L623 FunctionHandler]: Unknown extern function blk_mq_freeze_queue [2022-11-26 01:04:25,835 WARN L623 FunctionHandler]: Unknown extern function blk_mq_unfreeze_queue [2022-11-26 01:04:25,843 WARN L623 FunctionHandler]: Unknown extern function __blkdev_reread_part [2022-11-26 01:04:25,849 WARN L623 FunctionHandler]: Unknown extern function blkdev_reread_part [2022-11-26 01:04:25,852 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:04:25,857 WARN L623 FunctionHandler]: Unknown extern function fget [2022-11-26 01:04:25,860 WARN L623 FunctionHandler]: Unknown extern function fput [2022-11-26 01:04:25,867 WARN L623 FunctionHandler]: Unknown extern function fput [2022-11-26 01:04:25,884 WARN L623 FunctionHandler]: Unknown extern function file_path [2022-11-26 01:04:25,898 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:25,907 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:25,914 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:25,922 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:25,963 WARN L623 FunctionHandler]: Unknown extern function sysfs_create_group [2022-11-26 01:04:25,967 WARN L623 FunctionHandler]: Unknown extern function sysfs_remove_group [2022-11-26 01:04:25,978 WARN L623 FunctionHandler]: Unknown extern function fget [2022-11-26 01:04:25,992 WARN L623 FunctionHandler]: Unknown extern function __alloc_workqueue_key [2022-11-26 01:04:25,994 WARN L623 FunctionHandler]: Unknown extern function set_device_ro [2022-11-26 01:04:25,996 WARN L623 FunctionHandler]: Unknown extern function blk_queue_flush [2022-11-26 01:04:25,996 WARN L623 FunctionHandler]: Unknown extern function bd_set_size [2022-11-26 01:04:25,998 WARN L623 FunctionHandler]: Unknown extern function kobject_uevent [2022-11-26 01:04:25,998 WARN L623 FunctionHandler]: Unknown extern function set_blocksize [2022-11-26 01:04:25,999 WARN L623 FunctionHandler]: Unknown extern function bdgrab [2022-11-26 01:04:26,000 WARN L623 FunctionHandler]: Unknown extern function fput [2022-11-26 01:04:26,027 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,028 WARN L623 FunctionHandler]: Unknown extern function blk_mq_freeze_queue [2022-11-26 01:04:26,030 WARN L623 FunctionHandler]: Unknown extern function bdput [2022-11-26 01:04:26,031 WARN L623 FunctionHandler]: Unknown extern function invalidate_bdev [2022-11-26 01:04:26,032 WARN L623 FunctionHandler]: Unknown extern function bd_set_size [2022-11-26 01:04:26,033 WARN L623 FunctionHandler]: Unknown extern function kobject_uevent [2022-11-26 01:04:26,035 WARN L623 FunctionHandler]: Unknown extern function blk_mq_unfreeze_queue [2022-11-26 01:04:26,036 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,036 WARN L623 FunctionHandler]: Unknown extern function fput [2022-11-26 01:04:26,041 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 01:04:26,042 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-26 01:04:26,052 WARN L623 FunctionHandler]: Unknown extern function vfs_getattr [2022-11-26 01:04:26,055 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-26 01:04:26,104 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-26 01:04:26,108 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-26 01:04:26,109 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-26 01:04:26,111 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-26 01:04:26,113 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,144 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-26 01:04:26,146 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,146 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-26 01:04:26,147 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,153 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-26 01:04:26,154 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,164 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-26 01:04:26,165 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,170 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-26 01:04:26,172 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,176 WARN L623 FunctionHandler]: Unknown extern function idr_for_each [2022-11-26 01:04:26,182 WARN L623 FunctionHandler]: Unknown extern function blk_mq_start_request [2022-11-26 01:04:26,193 WARN L623 FunctionHandler]: Unknown extern function blk_mq_complete_request [2022-11-26 01:04:26,207 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-26 01:04:26,207 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-26 01:04:26,212 WARN L623 FunctionHandler]: Unknown extern function idr_alloc [2022-11-26 01:04:26,213 WARN L623 FunctionHandler]: Unknown extern function idr_alloc [2022-11-26 01:04:26,214 WARN L623 FunctionHandler]: Unknown extern function blk_mq_alloc_tag_set [2022-11-26 01:04:26,214 WARN L623 FunctionHandler]: Unknown extern function blk_mq_init_queue [2022-11-26 01:04:26,215 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-26 01:04:26,216 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-26 01:04:26,216 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-11-26 01:04:26,217 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-26 01:04:26,218 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 01:04:26,219 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:26,220 WARN L623 FunctionHandler]: Unknown extern function add_disk [2022-11-26 01:04:26,221 WARN L623 FunctionHandler]: Unknown extern function blk_cleanup_queue [2022-11-26 01:04:26,221 WARN L623 FunctionHandler]: Unknown extern function blk_mq_free_tag_set [2022-11-26 01:04:26,222 WARN L623 FunctionHandler]: Unknown extern function idr_remove [2022-11-26 01:04:26,222 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:04:26,226 WARN L623 FunctionHandler]: Unknown extern function blk_cleanup_queue [2022-11-26 01:04:26,226 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-11-26 01:04:26,226 WARN L623 FunctionHandler]: Unknown extern function blk_mq_free_tag_set [2022-11-26 01:04:26,226 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 01:04:26,227 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:04:26,235 WARN L623 FunctionHandler]: Unknown extern function idr_for_each [2022-11-26 01:04:26,240 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-26 01:04:26,241 WARN L623 FunctionHandler]: Unknown extern function get_disk [2022-11-26 01:04:26,242 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,247 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-26 01:04:26,248 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-26 01:04:26,248 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,249 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,249 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,250 WARN L623 FunctionHandler]: Unknown extern function idr_remove [2022-11-26 01:04:26,251 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,257 WARN L623 FunctionHandler]: Unknown extern function register_blkdev [2022-11-26 01:04:26,258 WARN L623 FunctionHandler]: Unknown extern function blk_register_region [2022-11-26 01:04:26,258 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-26 01:04:26,259 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,259 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:04:26,267 WARN L623 FunctionHandler]: Unknown extern function idr_for_each [2022-11-26 01:04:26,267 WARN L623 FunctionHandler]: Unknown extern function idr_destroy [2022-11-26 01:04:26,267 WARN L623 FunctionHandler]: Unknown extern function blk_unregister_region [2022-11-26 01:04:26,268 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-11-26 01:04:26,315 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 01:04:26,325 WARN L623 FunctionHandler]: Unknown extern function ldv_setup_11 [2022-11-26 01:04:26,326 WARN L623 FunctionHandler]: Unknown extern function ldv_release_11 [2022-11-26 01:04:26,329 WARN L623 FunctionHandler]: Unknown extern function ldv_release_11 [2022-11-26 01:04:26,330 WARN L623 FunctionHandler]: Unknown extern function noop_llseek [2022-11-26 01:04:26,331 WARN L623 FunctionHandler]: Unknown extern function ldv_release_3 [2022-11-26 01:04:26,334 WARN L623 FunctionHandler]: Unknown extern function blk_mq_map_queue [2022-11-26 01:04:26,340 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-26 01:04:26,340 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-26 01:04:26,342 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-26 01:04:26,342 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-11-26 01:04:26,343 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-26 01:04:26,350 WARN L623 FunctionHandler]: Unknown extern function destroy_workqueue [2022-11-26 01:04:26,350 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-11-26 01:04:26,351 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-11-26 01:04:26,351 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-11-26 01:04:26,355 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_baa31404-c60c-4cfc-b8ff-81ba0934e718/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--block--loop.ko-entry_point.cil.out.i[237426,237439] [2022-11-26 01:04:26,376 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 01:04:26,384 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 01:04:26,385 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 01:04:26,386 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 01:04:26,387 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 01:04:26,387 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 01:04:26,395 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 01:04:26,396 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 01:04:26,396 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 01:04:26,397 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 01:04:26,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:04:26,496 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:04:26,596 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-11-26 01:04:26,597 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-11-26 01:04:26,599 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 01:04:26,600 WARN L623 FunctionHandler]: Unknown extern function __xadd_wrong_size [2022-11-26 01:04:26,602 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 01:04:26,603 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 01:04:26,608 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-26 01:04:26,609 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-26 01:04:26,611 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-11-26 01:04:26,612 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 01:04:26,613 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 01:04:26,614 WARN L623 FunctionHandler]: Unknown extern function idr_find_slowpath [2022-11-26 01:04:26,614 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 01:04:26,625 WARN L623 FunctionHandler]: Unknown extern function __sb_start_write [2022-11-26 01:04:26,629 WARN L623 FunctionHandler]: Unknown extern function __sb_end_write [2022-11-26 01:04:26,635 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-11-26 01:04:26,636 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-26 01:04:26,636 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-11-26 01:04:26,637 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-11-26 01:04:26,637 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-26 01:04:26,638 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-11-26 01:04:26,641 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 01:04:26,644 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-26 01:04:26,655 WARN L623 FunctionHandler]: Unknown extern function ___might_sleep [2022-11-26 01:04:26,655 WARN L623 FunctionHandler]: Unknown extern function _cond_resched [2022-11-26 01:04:26,662 WARN L623 FunctionHandler]: Unknown extern function bd_set_size [2022-11-26 01:04:26,662 WARN L623 FunctionHandler]: Unknown extern function kobject_uevent [2022-11-26 01:04:26,671 WARN L623 FunctionHandler]: Unknown extern function ___ratelimit [2022-11-26 01:04:26,671 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:04:26,672 WARN L623 FunctionHandler]: Unknown extern function iov_iter_bvec [2022-11-26 01:04:26,672 WARN L623 FunctionHandler]: Unknown extern function vfs_iter_write [2022-11-26 01:04:26,674 WARN L623 FunctionHandler]: Unknown extern function ___ratelimit [2022-11-26 01:04:26,674 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:04:26,677 WARN L623 FunctionHandler]: Unknown extern function ___might_sleep [2022-11-26 01:04:26,677 WARN L623 FunctionHandler]: Unknown extern function _cond_resched [2022-11-26 01:04:26,683 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-26 01:04:26,686 WARN L623 FunctionHandler]: Unknown extern function iov_iter_bvec [2022-11-26 01:04:26,686 WARN L623 FunctionHandler]: Unknown extern function vfs_iter_read [2022-11-26 01:04:26,687 WARN L623 FunctionHandler]: Unknown extern function zero_fill_bio [2022-11-26 01:04:26,687 WARN L623 FunctionHandler]: Unknown extern function ___might_sleep [2022-11-26 01:04:26,688 WARN L623 FunctionHandler]: Unknown extern function _cond_resched [2022-11-26 01:04:26,692 WARN L623 FunctionHandler]: Unknown extern function iov_iter_bvec [2022-11-26 01:04:26,693 WARN L623 FunctionHandler]: Unknown extern function vfs_iter_read [2022-11-26 01:04:26,695 WARN L623 FunctionHandler]: Unknown extern function zero_fill_bio [2022-11-26 01:04:26,700 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-26 01:04:26,704 WARN L623 FunctionHandler]: Unknown extern function vfs_fsync [2022-11-26 01:04:26,708 WARN L623 FunctionHandler]: Unknown extern function blk_mq_freeze_queue [2022-11-26 01:04:26,710 WARN L623 FunctionHandler]: Unknown extern function blk_mq_unfreeze_queue [2022-11-26 01:04:26,710 WARN L623 FunctionHandler]: Unknown extern function __blkdev_reread_part [2022-11-26 01:04:26,711 WARN L623 FunctionHandler]: Unknown extern function blkdev_reread_part [2022-11-26 01:04:26,711 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:04:26,712 WARN L623 FunctionHandler]: Unknown extern function fget [2022-11-26 01:04:26,714 WARN L623 FunctionHandler]: Unknown extern function fput [2022-11-26 01:04:26,714 WARN L623 FunctionHandler]: Unknown extern function fput [2022-11-26 01:04:26,717 WARN L623 FunctionHandler]: Unknown extern function file_path [2022-11-26 01:04:26,718 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:26,719 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:26,721 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:26,722 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:26,730 WARN L623 FunctionHandler]: Unknown extern function sysfs_create_group [2022-11-26 01:04:26,731 WARN L623 FunctionHandler]: Unknown extern function sysfs_remove_group [2022-11-26 01:04:26,735 WARN L623 FunctionHandler]: Unknown extern function fget [2022-11-26 01:04:26,740 WARN L623 FunctionHandler]: Unknown extern function __alloc_workqueue_key [2022-11-26 01:04:26,740 WARN L623 FunctionHandler]: Unknown extern function set_device_ro [2022-11-26 01:04:26,781 WARN L623 FunctionHandler]: Unknown extern function blk_queue_flush [2022-11-26 01:04:26,781 WARN L623 FunctionHandler]: Unknown extern function bd_set_size [2022-11-26 01:04:26,781 WARN L623 FunctionHandler]: Unknown extern function kobject_uevent [2022-11-26 01:04:26,782 WARN L623 FunctionHandler]: Unknown extern function set_blocksize [2022-11-26 01:04:26,783 WARN L623 FunctionHandler]: Unknown extern function bdgrab [2022-11-26 01:04:26,783 WARN L623 FunctionHandler]: Unknown extern function fput [2022-11-26 01:04:26,802 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,802 WARN L623 FunctionHandler]: Unknown extern function blk_mq_freeze_queue [2022-11-26 01:04:26,814 WARN L623 FunctionHandler]: Unknown extern function bdput [2022-11-26 01:04:26,815 WARN L623 FunctionHandler]: Unknown extern function invalidate_bdev [2022-11-26 01:04:26,815 WARN L623 FunctionHandler]: Unknown extern function bd_set_size [2022-11-26 01:04:26,815 WARN L623 FunctionHandler]: Unknown extern function kobject_uevent [2022-11-26 01:04:26,816 WARN L623 FunctionHandler]: Unknown extern function blk_mq_unfreeze_queue [2022-11-26 01:04:26,817 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,817 WARN L623 FunctionHandler]: Unknown extern function fput [2022-11-26 01:04:26,818 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-11-26 01:04:26,819 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-26 01:04:26,832 WARN L623 FunctionHandler]: Unknown extern function vfs_getattr [2022-11-26 01:04:26,834 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-26 01:04:26,843 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-26 01:04:26,844 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-26 01:04:26,845 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-26 01:04:26,846 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-26 01:04:26,851 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,858 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-26 01:04:26,859 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,859 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-26 01:04:26,859 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,861 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-26 01:04:26,861 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,862 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-26 01:04:26,863 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,864 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-26 01:04:26,864 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,865 WARN L623 FunctionHandler]: Unknown extern function idr_for_each [2022-11-26 01:04:26,867 WARN L623 FunctionHandler]: Unknown extern function blk_mq_start_request [2022-11-26 01:04:26,869 WARN L623 FunctionHandler]: Unknown extern function blk_mq_complete_request [2022-11-26 01:04:26,872 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-26 01:04:26,872 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-26 01:04:26,874 WARN L623 FunctionHandler]: Unknown extern function idr_alloc [2022-11-26 01:04:26,874 WARN L623 FunctionHandler]: Unknown extern function idr_alloc [2022-11-26 01:04:26,878 WARN L623 FunctionHandler]: Unknown extern function blk_mq_alloc_tag_set [2022-11-26 01:04:26,878 WARN L623 FunctionHandler]: Unknown extern function blk_mq_init_queue [2022-11-26 01:04:26,879 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-26 01:04:26,880 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-26 01:04:26,880 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-11-26 01:04:26,881 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-26 01:04:26,881 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 01:04:26,887 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 01:04:26,888 WARN L623 FunctionHandler]: Unknown extern function add_disk [2022-11-26 01:04:26,888 WARN L623 FunctionHandler]: Unknown extern function blk_cleanup_queue [2022-11-26 01:04:26,888 WARN L623 FunctionHandler]: Unknown extern function blk_mq_free_tag_set [2022-11-26 01:04:26,889 WARN L623 FunctionHandler]: Unknown extern function idr_remove [2022-11-26 01:04:26,889 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:04:26,889 WARN L623 FunctionHandler]: Unknown extern function blk_cleanup_queue [2022-11-26 01:04:26,890 WARN L623 FunctionHandler]: Unknown extern function del_gendisk [2022-11-26 01:04:26,890 WARN L623 FunctionHandler]: Unknown extern function blk_mq_free_tag_set [2022-11-26 01:04:26,890 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 01:04:26,890 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 01:04:26,891 WARN L623 FunctionHandler]: Unknown extern function idr_for_each [2022-11-26 01:04:26,892 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-26 01:04:26,893 WARN L623 FunctionHandler]: Unknown extern function get_disk [2022-11-26 01:04:26,894 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,894 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-26 01:04:26,895 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-26 01:04:26,895 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,896 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,896 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,897 WARN L623 FunctionHandler]: Unknown extern function idr_remove [2022-11-26 01:04:26,897 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,899 WARN L623 FunctionHandler]: Unknown extern function register_blkdev [2022-11-26 01:04:26,900 WARN L623 FunctionHandler]: Unknown extern function blk_register_region [2022-11-26 01:04:26,901 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-26 01:04:26,901 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 01:04:26,901 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 01:04:26,902 WARN L623 FunctionHandler]: Unknown extern function idr_for_each [2022-11-26 01:04:26,903 WARN L623 FunctionHandler]: Unknown extern function idr_destroy [2022-11-26 01:04:26,903 WARN L623 FunctionHandler]: Unknown extern function blk_unregister_region [2022-11-26 01:04:26,903 WARN L623 FunctionHandler]: Unknown extern function unregister_blkdev [2022-11-26 01:04:26,915 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 01:04:26,918 WARN L623 FunctionHandler]: Unknown extern function ldv_setup_11 [2022-11-26 01:04:26,919 WARN L623 FunctionHandler]: Unknown extern function ldv_release_11 [2022-11-26 01:04:26,919 WARN L623 FunctionHandler]: Unknown extern function ldv_release_11 [2022-11-26 01:04:26,920 WARN L623 FunctionHandler]: Unknown extern function noop_llseek [2022-11-26 01:04:26,921 WARN L623 FunctionHandler]: Unknown extern function ldv_release_3 [2022-11-26 01:04:26,923 WARN L623 FunctionHandler]: Unknown extern function blk_mq_map_queue [2022-11-26 01:04:26,927 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-26 01:04:26,928 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-26 01:04:26,928 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-26 01:04:26,929 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-11-26 01:04:26,929 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-26 01:04:26,930 WARN L623 FunctionHandler]: Unknown extern function destroy_workqueue [2022-11-26 01:04:26,930 WARN L623 FunctionHandler]: Unknown extern function misc_register [2022-11-26 01:04:26,931 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-11-26 01:04:26,931 WARN L623 FunctionHandler]: Unknown extern function misc_deregister [2022-11-26 01:04:26,932 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_baa31404-c60c-4cfc-b8ff-81ba0934e718/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--block--loop.ko-entry_point.cil.out.i[237426,237439] [2022-11-26 01:04:26,935 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 01:04:26,936 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 01:04:26,937 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 01:04:26,937 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 01:04:26,939 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 01:04:26,939 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 01:04:26,940 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 01:04:26,940 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 01:04:26,941 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 01:04:26,941 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 01:04:26,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:04:27,110 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:04:27,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:27 WrapperNode [2022-11-26 01:04:27,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:04:27,115 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:04:27,115 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:04:27,115 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:04:27,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:27" (1/1) ... [2022-11-26 01:04:27,222 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:27" (1/1) ... [2022-11-26 01:04:27,422 INFO L138 Inliner]: procedures = 311, calls = 2050, calls flagged for inlining = 159, calls inlined = 157, statements flattened = 5633 [2022-11-26 01:04:27,423 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:04:27,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:04:27,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:04:27,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:04:27,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:27" (1/1) ... [2022-11-26 01:04:27,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:27" (1/1) ... [2022-11-26 01:04:27,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:27" (1/1) ... [2022-11-26 01:04:27,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:27" (1/1) ... [2022-11-26 01:04:27,608 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:27" (1/1) ... [2022-11-26 01:04:27,640 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:27" (1/1) ... [2022-11-26 01:04:27,670 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:27" (1/1) ... [2022-11-26 01:04:27,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:27" (1/1) ... [2022-11-26 01:04:27,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:04:27,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:04:27,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:04:27,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:04:27,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:27" (1/1) ... [2022-11-26 01:04:27,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:04:27,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa31404-c60c-4cfc-b8ff-81ba0934e718/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:04:27,864 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa31404-c60c-4cfc-b8ff-81ba0934e718/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:04:27,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa31404-c60c-4cfc-b8ff-81ba0934e718/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:04:27,909 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2022-11-26 01:04:27,909 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2022-11-26 01:04:27,909 INFO L130 BoogieDeclarations]: Found specification of procedure loop_add [2022-11-26 01:04:27,909 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_add [2022-11-26 01:04:27,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-26 01:04:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-26 01:04:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-26 01:04:27,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-26 01:04:27,910 INFO L130 BoogieDeclarations]: Found specification of procedure iov_iter_bvec [2022-11-26 01:04:27,911 INFO L138 BoogieDeclarations]: Found implementation of procedure iov_iter_bvec [2022-11-26 01:04:27,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-26 01:04:27,911 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-26 01:04:27,911 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-11-26 01:04:27,911 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-11-26 01:04:27,911 INFO L130 BoogieDeclarations]: Found specification of procedure loop_control_ioctl [2022-11-26 01:04:27,911 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_control_ioctl [2022-11-26 01:04:27,912 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-26 01:04:27,912 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-26 01:04:27,912 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-26 01:04:27,912 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-26 01:04:27,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-26 01:04:27,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-26 01:04:27,912 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_uevent [2022-11-26 01:04:27,913 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_uevent [2022-11-26 01:04:27,913 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-26 01:04:27,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-26 01:04:27,913 INFO L130 BoogieDeclarations]: Found specification of procedure loop_remove [2022-11-26 01:04:27,913 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_remove [2022-11-26 01:04:27,913 INFO L130 BoogieDeclarations]: Found specification of procedure transfer_xor [2022-11-26 01:04:27,914 INFO L138 BoogieDeclarations]: Found implementation of procedure transfer_xor [2022-11-26 01:04:27,914 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-26 01:04:27,914 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-26 01:04:27,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-26 01:04:27,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-26 01:04:27,914 INFO L130 BoogieDeclarations]: Found specification of procedure huge_encode_dev [2022-11-26 01:04:27,914 INFO L138 BoogieDeclarations]: Found implementation of procedure huge_encode_dev [2022-11-26 01:04:27,915 INFO L130 BoogieDeclarations]: Found specification of procedure lo_do_transfer [2022-11-26 01:04:27,915 INFO L138 BoogieDeclarations]: Found implementation of procedure lo_do_transfer [2022-11-26 01:04:27,915 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_unfreeze_queue [2022-11-26 01:04:27,915 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_unfreeze_queue [2022-11-26 01:04:27,915 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2022-11-26 01:04:27,915 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2022-11-26 01:04:27,915 INFO L130 BoogieDeclarations]: Found specification of procedure lo_compat_ioctl [2022-11-26 01:04:27,916 INFO L138 BoogieDeclarations]: Found implementation of procedure lo_compat_ioctl [2022-11-26 01:04:27,916 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-11-26 01:04:27,916 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-11-26 01:04:27,916 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-26 01:04:27,916 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-26 01:04:27,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-26 01:04:27,916 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-26 01:04:27,917 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-26 01:04:27,917 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-26 01:04:27,917 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR_OR_NULL [2022-11-26 01:04:27,917 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR_OR_NULL [2022-11-26 01:04:27,917 INFO L130 BoogieDeclarations]: Found specification of procedure loop_get_status [2022-11-26 01:04:27,917 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_get_status [2022-11-26 01:04:27,917 INFO L130 BoogieDeclarations]: Found specification of procedure loop_handle_cmd [2022-11-26 01:04:27,918 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_handle_cmd [2022-11-26 01:04:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure loop_clr_fd [2022-11-26 01:04:27,918 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_clr_fd [2022-11-26 01:04:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 01:04:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-26 01:04:27,918 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-26 01:04:27,918 INFO L130 BoogieDeclarations]: Found specification of procedure figure_loop_size [2022-11-26 01:04:27,918 INFO L138 BoogieDeclarations]: Found implementation of procedure figure_loop_size [2022-11-26 01:04:27,919 INFO L130 BoogieDeclarations]: Found specification of procedure get_size [2022-11-26 01:04:27,919 INFO L138 BoogieDeclarations]: Found implementation of procedure get_size [2022-11-26 01:04:27,919 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_rq_to_pdu [2022-11-26 01:04:27,919 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_rq_to_pdu [2022-11-26 01:04:27,919 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-11-26 01:04:27,919 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-11-26 01:04:27,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 01:04:27,920 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-11-26 01:04:27,920 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_2 [2022-11-26 01:04:27,920 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_2 [2022-11-26 01:04:27,920 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-11-26 01:04:27,920 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-11-26 01:04:27,920 INFO L130 BoogieDeclarations]: Found specification of procedure lo_write_bvec [2022-11-26 01:04:27,920 INFO L138 BoogieDeclarations]: Found implementation of procedure lo_write_bvec [2022-11-26 01:04:27,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 01:04:27,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 01:04:27,921 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-26 01:04:27,921 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-26 01:04:27,921 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-26 01:04:27,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-26 01:04:27,921 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-26 01:04:27,921 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-26 01:04:27,922 INFO L130 BoogieDeclarations]: Found specification of procedure loop_set_status_old [2022-11-26 01:04:27,922 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_set_status_old [2022-11-26 01:04:27,922 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2022-11-26 01:04:27,922 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2022-11-26 01:04:27,922 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-26 01:04:27,922 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-26 01:04:27,922 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-26 01:04:27,923 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-26 01:04:27,923 INFO L130 BoogieDeclarations]: Found specification of procedure loop_reread_partitions [2022-11-26 01:04:27,923 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_reread_partitions [2022-11-26 01:04:27,923 INFO L130 BoogieDeclarations]: Found specification of procedure nonseekable_open [2022-11-26 01:04:27,923 INFO L130 BoogieDeclarations]: Found specification of procedure loop_set_capacity [2022-11-26 01:04:27,923 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_set_capacity [2022-11-26 01:04:27,923 INFO L130 BoogieDeclarations]: Found specification of procedure vfs_iter_read [2022-11-26 01:04:27,924 INFO L138 BoogieDeclarations]: Found implementation of procedure vfs_iter_read [2022-11-26 01:04:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure idr_for_each [2022-11-26 01:04:27,924 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_for_each [2022-11-26 01:04:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-26 01:04:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_free_tag_set [2022-11-26 01:04:27,924 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_free_tag_set [2022-11-26 01:04:27,924 INFO L130 BoogieDeclarations]: Found specification of procedure ___might_sleep [2022-11-26 01:04:27,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ___might_sleep [2022-11-26 01:04:27,925 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2022-11-26 01:04:27,925 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2022-11-26 01:04:27,925 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-26 01:04:27,925 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-26 01:04:27,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 01:04:27,925 INFO L130 BoogieDeclarations]: Found specification of procedure bio_advance_iter [2022-11-26 01:04:27,925 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_advance_iter [2022-11-26 01:04:27,926 INFO L130 BoogieDeclarations]: Found specification of procedure loop_queue_write_work [2022-11-26 01:04:27,926 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_queue_write_work [2022-11-26 01:04:27,926 INFO L130 BoogieDeclarations]: Found specification of procedure bd_set_size [2022-11-26 01:04:27,926 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_set_size [2022-11-26 01:04:27,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 01:04:27,927 INFO L130 BoogieDeclarations]: Found specification of procedure fget [2022-11-26 01:04:27,927 INFO L138 BoogieDeclarations]: Found implementation of procedure fget [2022-11-26 01:04:27,927 INFO L130 BoogieDeclarations]: Found specification of procedure mapping_set_gfp_mask [2022-11-26 01:04:27,928 INFO L138 BoogieDeclarations]: Found implementation of procedure mapping_set_gfp_mask [2022-11-26 01:04:27,928 INFO L130 BoogieDeclarations]: Found specification of procedure xor_init [2022-11-26 01:04:27,928 INFO L138 BoogieDeclarations]: Found implementation of procedure xor_init [2022-11-26 01:04:27,928 INFO L130 BoogieDeclarations]: Found specification of procedure loop_set_status64 [2022-11-26 01:04:27,928 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_set_status64 [2022-11-26 01:04:27,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-26 01:04:27,928 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-26 01:04:27,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_11 [2022-11-26 01:04:27,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_11 [2022-11-26 01:04:27,929 INFO L130 BoogieDeclarations]: Found specification of procedure zero_fill_bio [2022-11-26 01:04:27,929 INFO L138 BoogieDeclarations]: Found implementation of procedure zero_fill_bio [2022-11-26 01:04:27,929 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-26 01:04:27,929 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-26 01:04:27,929 INFO L130 BoogieDeclarations]: Found specification of procedure loop_attr_show [2022-11-26 01:04:27,929 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_attr_show [2022-11-26 01:04:27,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 01:04:27,930 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-26 01:04:27,930 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-26 01:04:27,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-26 01:04:27,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-26 01:04:27,930 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-26 01:04:27,930 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-26 01:04:27,931 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-11-26 01:04:27,931 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-11-26 01:04:27,931 INFO L130 BoogieDeclarations]: Found specification of procedure blk_mq_freeze_queue [2022-11-26 01:04:27,931 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_mq_freeze_queue [2022-11-26 01:04:27,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-26 01:04:27,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-26 01:04:27,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 01:04:27,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-26 01:04:27,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-26 01:04:27,932 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-26 01:04:27,932 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-26 01:04:27,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 01:04:27,932 INFO L130 BoogieDeclarations]: Found specification of procedure get_loop_size [2022-11-26 01:04:27,932 INFO L138 BoogieDeclarations]: Found implementation of procedure get_loop_size [2022-11-26 01:04:27,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 01:04:27,933 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2022-11-26 01:04:27,933 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2022-11-26 01:04:27,933 INFO L130 BoogieDeclarations]: Found specification of procedure loop_set_status [2022-11-26 01:04:27,933 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_set_status [2022-11-26 01:04:27,933 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-26 01:04:27,933 INFO L130 BoogieDeclarations]: Found specification of procedure lo_ioctl [2022-11-26 01:04:27,933 INFO L138 BoogieDeclarations]: Found implementation of procedure lo_ioctl [2022-11-26 01:04:27,934 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-26 01:04:27,934 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-26 01:04:27,934 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2022-11-26 01:04:27,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2022-11-26 01:04:27,934 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2022-11-26 01:04:27,934 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2022-11-26 01:04:27,935 INFO L130 BoogieDeclarations]: Found specification of procedure loop_release_xfer [2022-11-26 01:04:27,935 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_release_xfer [2022-11-26 01:04:27,935 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2022-11-26 01:04:27,935 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2022-11-26 01:04:27,935 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-26 01:04:27,935 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-26 01:04:27,935 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_2 [2022-11-26 01:04:27,935 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_2 [2022-11-26 01:04:27,936 INFO L130 BoogieDeclarations]: Found specification of procedure loop_switch [2022-11-26 01:04:27,936 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_switch [2022-11-26 01:04:27,936 INFO L130 BoogieDeclarations]: Found specification of procedure loop_queue_read_work [2022-11-26 01:04:27,936 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_queue_read_work [2022-11-26 01:04:27,936 INFO L130 BoogieDeclarations]: Found specification of procedure kmap_atomic [2022-11-26 01:04:27,936 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap_atomic [2022-11-26 01:04:27,936 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-26 01:04:27,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-26 01:04:27,937 INFO L130 BoogieDeclarations]: Found specification of procedure mapping_gfp_mask [2022-11-26 01:04:27,937 INFO L138 BoogieDeclarations]: Found implementation of procedure mapping_gfp_mask [2022-11-26 01:04:27,937 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-11-26 01:04:27,937 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-11-26 01:04:27,937 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-26 01:04:27,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-26 01:04:27,938 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-11-26 01:04:27,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-11-26 01:04:27,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 01:04:27,938 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-11-26 01:04:27,938 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-11-26 01:04:27,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:04:27,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:04:27,939 INFO L130 BoogieDeclarations]: Found specification of procedure loop_lookup [2022-11-26 01:04:27,939 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_lookup [2022-11-26 01:04:27,939 INFO L130 BoogieDeclarations]: Found specification of procedure loop_queue_rq [2022-11-26 01:04:27,939 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_queue_rq [2022-11-26 01:04:28,799 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:04:28,802 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:04:29,341 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-26 01:04:38,414 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:04:39,772 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:04:39,773 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 01:04:39,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:04:39 BoogieIcfgContainer [2022-11-26 01:04:39,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:04:39,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:04:39,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:04:39,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:04:39,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:04:24" (1/3) ... [2022-11-26 01:04:39,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d0c007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:04:39, skipping insertion in model container [2022-11-26 01:04:39,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:27" (2/3) ... [2022-11-26 01:04:39,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d0c007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:04:39, skipping insertion in model container [2022-11-26 01:04:39,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:04:39" (3/3) ... [2022-11-26 01:04:39,786 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--block--loop.ko-entry_point.cil.out.i [2022-11-26 01:04:39,806 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:04:39,807 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 01:04:39,880 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:04:39,886 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;@1023ffa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:04:39,887 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 01:04:39,896 INFO L276 IsEmpty]: Start isEmpty. Operand has 1252 states, 794 states have (on average 1.3614609571788414) internal successors, (1081), 829 states have internal predecessors, (1081), 363 states have call successors, (363), 94 states have call predecessors, (363), 93 states have return successors, (350), 348 states have call predecessors, (350), 350 states have call successors, (350) [2022-11-26 01:04:39,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2022-11-26 01:04:39,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:04:39,943 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:04:39,944 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:04:39,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:04:39,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1487285746, now seen corresponding path program 1 times [2022-11-26 01:04:39,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:04:39,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364680068] [2022-11-26 01:04:39,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:04:39,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:04:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:04:41,782 INFO L134 CoverageAnalysis]: Checked inductivity of 4531 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4531 trivial. 0 not checked. [2022-11-26 01:04:41,782 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:04:41,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364680068] [2022-11-26 01:04:41,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364680068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:04:41,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:04:41,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 01:04:41,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177493827] [2022-11-26 01:04:41,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:04:41,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:04:41,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:04:41,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:04:41,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:04:41,826 INFO L87 Difference]: Start difference. First operand has 1252 states, 794 states have (on average 1.3614609571788414) internal successors, (1081), 829 states have internal predecessors, (1081), 363 states have call successors, (363), 94 states have call predecessors, (363), 93 states have return successors, (350), 348 states have call predecessors, (350), 350 states have call successors, (350) Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-26 01:04:43,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:04:46,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:04:51,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:04:52,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:04:52,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:04:52,726 INFO L93 Difference]: Finished difference Result 3522 states and 5078 transitions. [2022-11-26 01:04:52,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:04:52,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 522 [2022-11-26 01:04:52,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:04:52,768 INFO L225 Difference]: With dead ends: 3522 [2022-11-26 01:04:52,768 INFO L226 Difference]: Without dead ends: 2339 [2022-11-26 01:04:52,779 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 [2022-11-26 01:04:52,783 INFO L413 NwaCegarLoop]: 1884 mSDtfsCounter, 1610 mSDsluCounter, 1556 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1610 SdHoareTripleChecker+Valid, 3440 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-11-26 01:04:52,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1610 Valid, 3440 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 405 Invalid, 2 Unknown, 0 Unchecked, 10.6s Time] [2022-11-26 01:04:52,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2339 states. [2022-11-26 01:04:52,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2339 to 2336. [2022-11-26 01:04:52,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 1512 states have (on average 1.3531746031746033) internal successors, (2046), 1551 states have internal predecessors, (2046), 640 states have call successors, (640), 184 states have call predecessors, (640), 183 states have return successors, (638), 634 states have call predecessors, (638), 638 states have call successors, (638) [2022-11-26 01:04:53,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 3324 transitions. [2022-11-26 01:04:53,021 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 3324 transitions. Word has length 522 [2022-11-26 01:04:53,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:04:53,024 INFO L495 AbstractCegarLoop]: Abstraction has 2336 states and 3324 transitions. [2022-11-26 01:04:53,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-26 01:04:53,024 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 3324 transitions. [2022-11-26 01:04:53,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2022-11-26 01:04:53,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:04:53,047 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:04:53,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 01:04:53,048 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:04:53,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:04:53,049 INFO L85 PathProgramCache]: Analyzing trace with hash -2093840609, now seen corresponding path program 1 times [2022-11-26 01:04:53,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:04:53,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675535972] [2022-11-26 01:04:53,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:04:53,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:04:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:04:54,123 INFO L134 CoverageAnalysis]: Checked inductivity of 4531 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4531 trivial. 0 not checked. [2022-11-26 01:04:54,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:04:54,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675535972] [2022-11-26 01:04:54,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675535972] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:04:54,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:04:54,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 01:04:54,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132905858] [2022-11-26 01:04:54,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:04:54,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:04:54,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:04:54,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:04:54,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:04:54,130 INFO L87 Difference]: Start difference. First operand 2336 states and 3324 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-26 01:04:55,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:04:57,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:05:00,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:05:03,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:05:03,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:05:03,129 INFO L93 Difference]: Finished difference Result 5850 states and 8290 transitions. [2022-11-26 01:05:03,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:05:03,131 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 538 [2022-11-26 01:05:03,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:05:03,157 INFO L225 Difference]: With dead ends: 5850 [2022-11-26 01:05:03,158 INFO L226 Difference]: Without dead ends: 3613 [2022-11-26 01:05:03,170 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 [2022-11-26 01:05:03,175 INFO L413 NwaCegarLoop]: 1723 mSDtfsCounter, 1048 mSDsluCounter, 1401 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1048 SdHoareTripleChecker+Valid, 3124 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-26 01:05:03,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1048 Valid, 3124 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 416 Invalid, 1 Unknown, 0 Unchecked, 8.8s Time] [2022-11-26 01:05:03,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3613 states. [2022-11-26 01:05:03,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3613 to 3603. [2022-11-26 01:05:03,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3603 states, 2358 states have (on average 1.3625954198473282) internal successors, (3213), 2410 states have internal predecessors, (3213), 945 states have call successors, (945), 300 states have call predecessors, (945), 299 states have return successors, (943), 936 states have call predecessors, (943), 943 states have call successors, (943) [2022-11-26 01:05:03,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3603 states to 3603 states and 5101 transitions. [2022-11-26 01:05:03,358 INFO L78 Accepts]: Start accepts. Automaton has 3603 states and 5101 transitions. Word has length 538 [2022-11-26 01:05:03,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:05:03,361 INFO L495 AbstractCegarLoop]: Abstraction has 3603 states and 5101 transitions. [2022-11-26 01:05:03,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-26 01:05:03,362 INFO L276 IsEmpty]: Start isEmpty. Operand 3603 states and 5101 transitions. [2022-11-26 01:05:03,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2022-11-26 01:05:03,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:05:03,376 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 26, 26, 26, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:05:03,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 01:05:03,376 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:05:03,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:05:03,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1982106081, now seen corresponding path program 1 times [2022-11-26 01:05:03,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:05:03,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860590326] [2022-11-26 01:05:03,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:05:03,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:05:03,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:05:04,251 INFO L134 CoverageAnalysis]: Checked inductivity of 5021 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5021 trivial. 0 not checked. [2022-11-26 01:05:04,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:05:04,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860590326] [2022-11-26 01:05:04,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860590326] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:05:04,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:05:04,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 01:05:04,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815414346] [2022-11-26 01:05:04,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:05:04,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:05:04,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:05:04,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:05:04,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:05:04,256 INFO L87 Difference]: Start difference. First operand 3603 states and 5101 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-26 01:05:06,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:05:11,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:05:11,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:05:11,957 INFO L93 Difference]: Finished difference Result 10508 states and 14920 transitions. [2022-11-26 01:05:11,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:05:11,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 542 [2022-11-26 01:05:11,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:05:12,004 INFO L225 Difference]: With dead ends: 10508 [2022-11-26 01:05:12,004 INFO L226 Difference]: Without dead ends: 7006 [2022-11-26 01:05:12,021 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 [2022-11-26 01:05:12,022 INFO L413 NwaCegarLoop]: 1981 mSDtfsCounter, 1575 mSDsluCounter, 1428 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1575 SdHoareTripleChecker+Valid, 3409 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-26 01:05:12,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1575 Valid, 3409 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 419 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-11-26 01:05:12,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7006 states. [2022-11-26 01:05:12,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7006 to 7002. [2022-11-26 01:05:12,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7002 states, 4599 states have (on average 1.365514242226571) internal successors, (6280), 4697 states have internal predecessors, (6280), 1809 states have call successors, (1809), 594 states have call predecessors, (1809), 593 states have return successors, (1831), 1794 states have call predecessors, (1831), 1807 states have call successors, (1831) [2022-11-26 01:05:12,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7002 states to 7002 states and 9920 transitions. [2022-11-26 01:05:12,341 INFO L78 Accepts]: Start accepts. Automaton has 7002 states and 9920 transitions. Word has length 542 [2022-11-26 01:05:12,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:05:12,342 INFO L495 AbstractCegarLoop]: Abstraction has 7002 states and 9920 transitions. [2022-11-26 01:05:12,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2022-11-26 01:05:12,343 INFO L276 IsEmpty]: Start isEmpty. Operand 7002 states and 9920 transitions. [2022-11-26 01:05:12,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 606 [2022-11-26 01:05:12,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:05:12,363 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 23, 23, 23, 23, 23, 23, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:05:12,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 01:05:12,364 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:05:12,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:05:12,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1510387481, now seen corresponding path program 1 times [2022-11-26 01:05:12,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:05:12,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429749840] [2022-11-26 01:05:12,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:05:12,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:05:12,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:05:13,800 INFO L134 CoverageAnalysis]: Checked inductivity of 5562 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5551 trivial. 0 not checked. [2022-11-26 01:05:13,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:05:13,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429749840] [2022-11-26 01:05:13,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429749840] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:05:13,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:05:13,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:05:13,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229649581] [2022-11-26 01:05:13,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:05:13,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:05:13,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:05:13,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:05:13,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:05:13,804 INFO L87 Difference]: Start difference. First operand 7002 states and 9920 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-11-26 01:05:15,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:05:22,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:05:22,442 INFO L93 Difference]: Finished difference Result 13907 states and 19697 transitions. [2022-11-26 01:05:22,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 01:05:22,444 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 605 [2022-11-26 01:05:22,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:05:22,490 INFO L225 Difference]: With dead ends: 13907 [2022-11-26 01:05:22,490 INFO L226 Difference]: Without dead ends: 7011 [2022-11-26 01:05:22,526 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 [2022-11-26 01:05:22,528 INFO L413 NwaCegarLoop]: 1564 mSDtfsCounter, 8 mSDsluCounter, 3118 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4682 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-11-26 01:05:22,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4682 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2022-11-26 01:05:22,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7011 states. [2022-11-26 01:05:22,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7011 to 7004. [2022-11-26 01:05:22,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7004 states, 4601 states have (on average 1.3649206694196914) internal successors, (6280), 4699 states have internal predecessors, (6280), 1809 states have call successors, (1809), 594 states have call predecessors, (1809), 593 states have return successors, (1831), 1794 states have call predecessors, (1831), 1807 states have call successors, (1831) [2022-11-26 01:05:22,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7004 states to 7004 states and 9920 transitions. [2022-11-26 01:05:22,934 INFO L78 Accepts]: Start accepts. Automaton has 7004 states and 9920 transitions. Word has length 605 [2022-11-26 01:05:22,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:05:22,937 INFO L495 AbstractCegarLoop]: Abstraction has 7004 states and 9920 transitions. [2022-11-26 01:05:22,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-11-26 01:05:22,938 INFO L276 IsEmpty]: Start isEmpty. Operand 7004 states and 9920 transitions. [2022-11-26 01:05:22,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2022-11-26 01:05:22,960 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:05:22,960 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 23, 23, 23, 23, 23, 23, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:05:22,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 01:05:22,961 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:05:22,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:05:22,961 INFO L85 PathProgramCache]: Analyzing trace with hash -2014325050, now seen corresponding path program 1 times [2022-11-26 01:05:22,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:05:22,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816625064] [2022-11-26 01:05:22,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:05:22,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:05:23,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:05:24,211 INFO L134 CoverageAnalysis]: Checked inductivity of 5562 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5551 trivial. 0 not checked. [2022-11-26 01:05:24,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:05:24,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816625064] [2022-11-26 01:05:24,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816625064] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:05:24,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:05:24,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 01:05:24,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574866959] [2022-11-26 01:05:24,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:05:24,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 01:05:24,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:05:24,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 01:05:24,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:05:24,235 INFO L87 Difference]: Start difference. First operand 7004 states and 9920 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-11-26 01:05:25,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:05:27,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:05:29,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:05:35,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:05:36,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:05:37,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:05:37,638 INFO L93 Difference]: Finished difference Result 13923 states and 19713 transitions. [2022-11-26 01:05:37,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 01:05:37,639 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 611 [2022-11-26 01:05:37,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:05:37,681 INFO L225 Difference]: With dead ends: 13923 [2022-11-26 01:05:37,682 INFO L226 Difference]: Without dead ends: 7019 [2022-11-26 01:05:37,708 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-26 01:05:37,709 INFO L413 NwaCegarLoop]: 1566 mSDtfsCounter, 13 mSDsluCounter, 4680 mSDsCounter, 0 mSdLazyCounter, 810 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 6246 SdHoareTripleChecker+Invalid, 814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 810 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-11-26 01:05:37,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 6246 Invalid, 814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 810 Invalid, 2 Unknown, 0 Unchecked, 13.1s Time] [2022-11-26 01:05:37,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7019 states. [2022-11-26 01:05:37,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7019 to 7009. [2022-11-26 01:05:37,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7009 states, 4604 states have (on average 1.3638140747176368) internal successors, (6279), 4703 states have internal predecessors, (6279), 1811 states have call successors, (1811), 594 states have call predecessors, (1811), 593 states have return successors, (1833), 1795 states have call predecessors, (1833), 1809 states have call successors, (1833) [2022-11-26 01:05:38,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7009 states to 7009 states and 9923 transitions. [2022-11-26 01:05:38,016 INFO L78 Accepts]: Start accepts. Automaton has 7009 states and 9923 transitions. Word has length 611 [2022-11-26 01:05:38,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:05:38,017 INFO L495 AbstractCegarLoop]: Abstraction has 7009 states and 9923 transitions. [2022-11-26 01:05:38,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-11-26 01:05:38,017 INFO L276 IsEmpty]: Start isEmpty. Operand 7009 states and 9923 transitions. [2022-11-26 01:05:38,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2022-11-26 01:05:38,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:05:38,029 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 23, 23, 23, 23, 23, 23, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:05:38,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 01:05:38,029 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:05:38,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:05:38,030 INFO L85 PathProgramCache]: Analyzing trace with hash 828922454, now seen corresponding path program 1 times [2022-11-26 01:05:38,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:05:38,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165893662] [2022-11-26 01:05:38,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:05:38,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:05:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:05:39,192 INFO L134 CoverageAnalysis]: Checked inductivity of 5562 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5551 trivial. 0 not checked. [2022-11-26 01:05:39,192 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:05:39,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165893662] [2022-11-26 01:05:39,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165893662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:05:39,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:05:39,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 01:05:39,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46668563] [2022-11-26 01:05:39,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:05:39,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 01:05:39,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:05:39,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 01:05:39,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:05:39,195 INFO L87 Difference]: Start difference. First operand 7009 states and 9923 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-11-26 01:05:40,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:05:42,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:05:44,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:05:49,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:05:50,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:05:54,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:05:55,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:05:55,866 INFO L93 Difference]: Finished difference Result 13923 states and 19705 transitions. [2022-11-26 01:05:55,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 01:05:55,867 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 613 [2022-11-26 01:05:55,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:05:55,906 INFO L225 Difference]: With dead ends: 13923 [2022-11-26 01:05:55,906 INFO L226 Difference]: Without dead ends: 7010 [2022-11-26 01:05:55,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-26 01:05:55,934 INFO L413 NwaCegarLoop]: 1565 mSDtfsCounter, 13 mSDsluCounter, 4676 mSDsCounter, 0 mSdLazyCounter, 809 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 6241 SdHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2022-11-26 01:05:55,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 6241 Invalid, 812 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 809 Invalid, 0 Unknown, 0 Unchecked, 16.4s Time] [2022-11-26 01:05:55,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7010 states. [2022-11-26 01:05:56,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7010 to 6989. [2022-11-26 01:05:56,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6989 states, 4592 states have (on average 1.3643292682926829) internal successors, (6265), 4690 states have internal predecessors, (6265), 1806 states have call successors, (1806), 591 states have call predecessors, (1806), 590 states have return successors, (1828), 1791 states have call predecessors, (1828), 1804 states have call successors, (1828) [2022-11-26 01:05:56,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6989 states to 6989 states and 9899 transitions. [2022-11-26 01:05:56,326 INFO L78 Accepts]: Start accepts. Automaton has 6989 states and 9899 transitions. Word has length 613 [2022-11-26 01:05:56,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:05:56,327 INFO L495 AbstractCegarLoop]: Abstraction has 6989 states and 9899 transitions. [2022-11-26 01:05:56,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-11-26 01:05:56,327 INFO L276 IsEmpty]: Start isEmpty. Operand 6989 states and 9899 transitions. [2022-11-26 01:05:56,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2022-11-26 01:05:56,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:05:56,338 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 23, 23, 23, 23, 23, 23, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:05:56,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 01:05:56,339 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:05:56,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:05:56,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1383678000, now seen corresponding path program 1 times [2022-11-26 01:05:56,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:05:56,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7136369] [2022-11-26 01:05:56,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:05:56,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:05:56,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:05:57,989 INFO L134 CoverageAnalysis]: Checked inductivity of 5564 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5553 trivial. 0 not checked. [2022-11-26 01:05:57,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:05:57,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7136369] [2022-11-26 01:05:57,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7136369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:05:57,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:05:57,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 01:05:57,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642500601] [2022-11-26 01:05:57,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:05:57,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 01:05:57,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:05:57,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 01:05:57,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:05:57,993 INFO L87 Difference]: Start difference. First operand 6989 states and 9899 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 4 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (59), 4 states have call predecessors, (59), 4 states have call successors, (59) [2022-11-26 01:05:59,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:06:01,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:06:06,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:06:08,821 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 [] [2022-11-26 01:06:10,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:06:10,254 INFO L93 Difference]: Finished difference Result 14061 states and 19959 transitions. [2022-11-26 01:06:10,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 01:06:10,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 4 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (59), 4 states have call predecessors, (59), 4 states have call successors, (59) Word has length 623 [2022-11-26 01:06:10,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:06:10,291 INFO L225 Difference]: With dead ends: 14061 [2022-11-26 01:06:10,291 INFO L226 Difference]: Without dead ends: 7182 [2022-11-26 01:06:10,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-26 01:06:10,315 INFO L413 NwaCegarLoop]: 1760 mSDtfsCounter, 1925 mSDsluCounter, 3283 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 69 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1927 SdHoareTripleChecker+Valid, 5043 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-11-26 01:06:10,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1927 Valid, 5043 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 716 Invalid, 2 Unknown, 0 Unchecked, 11.9s Time] [2022-11-26 01:06:10,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7182 states. [2022-11-26 01:06:10,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7182 to 6993. [2022-11-26 01:06:10,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6993 states, 4596 states have (on average 1.3635770234986946) internal successors, (6267), 4694 states have internal predecessors, (6267), 1806 states have call successors, (1806), 591 states have call predecessors, (1806), 590 states have return successors, (1828), 1791 states have call predecessors, (1828), 1804 states have call successors, (1828) [2022-11-26 01:06:10,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6993 states to 6993 states and 9901 transitions. [2022-11-26 01:06:10,766 INFO L78 Accepts]: Start accepts. Automaton has 6993 states and 9901 transitions. Word has length 623 [2022-11-26 01:06:10,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:06:10,768 INFO L495 AbstractCegarLoop]: Abstraction has 6993 states and 9901 transitions. [2022-11-26 01:06:10,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 4 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (59), 4 states have call predecessors, (59), 4 states have call successors, (59) [2022-11-26 01:06:10,768 INFO L276 IsEmpty]: Start isEmpty. Operand 6993 states and 9901 transitions. [2022-11-26 01:06:10,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 633 [2022-11-26 01:06:10,782 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:06:10,783 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 23, 23, 23, 23, 23, 23, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:06:10,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 01:06:10,783 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:06:10,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:06:10,784 INFO L85 PathProgramCache]: Analyzing trace with hash 174918763, now seen corresponding path program 1 times [2022-11-26 01:06:10,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:06:10,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603770175] [2022-11-26 01:06:10,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:06:10,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:06:11,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:06:11,521 INFO L134 CoverageAnalysis]: Checked inductivity of 5569 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5558 trivial. 0 not checked. [2022-11-26 01:06:11,521 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:06:11,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603770175] [2022-11-26 01:06:11,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603770175] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:06:11,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:06:11,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 01:06:11,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297194155] [2022-11-26 01:06:11,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:06:11,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:06:11,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:06:11,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:06:11,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:06:11,525 INFO L87 Difference]: Start difference. First operand 6993 states and 9901 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2022-11-26 01:06:13,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:06:16,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:06:18,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:06:19,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:06:23,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:06:23,460 INFO L93 Difference]: Finished difference Result 18140 states and 25694 transitions. [2022-11-26 01:06:23,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:06:23,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) Word has length 632 [2022-11-26 01:06:23,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:06:23,513 INFO L225 Difference]: With dead ends: 18140 [2022-11-26 01:06:23,514 INFO L226 Difference]: Without dead ends: 11257 [2022-11-26 01:06:23,542 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 [2022-11-26 01:06:23,543 INFO L413 NwaCegarLoop]: 2472 mSDtfsCounter, 1560 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1560 SdHoareTripleChecker+Valid, 4002 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2022-11-26 01:06:23,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1560 Valid, 4002 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 11.5s Time] [2022-11-26 01:06:23,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11257 states. [2022-11-26 01:06:24,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11257 to 11238. [2022-11-26 01:06:24,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11238 states, 7384 states have (on average 1.3613217768147345) internal successors, (10052), 7551 states have internal predecessors, (10052), 2907 states have call successors, (2907), 947 states have call predecessors, (2907), 946 states have return successors, (2945), 2883 states have call predecessors, (2945), 2905 states have call successors, (2945) [2022-11-26 01:06:24,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11238 states to 11238 states and 15904 transitions. [2022-11-26 01:06:24,188 INFO L78 Accepts]: Start accepts. Automaton has 11238 states and 15904 transitions. Word has length 632 [2022-11-26 01:06:24,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:06:24,189 INFO L495 AbstractCegarLoop]: Abstraction has 11238 states and 15904 transitions. [2022-11-26 01:06:24,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2022-11-26 01:06:24,190 INFO L276 IsEmpty]: Start isEmpty. Operand 11238 states and 15904 transitions. [2022-11-26 01:06:24,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 632 [2022-11-26 01:06:24,200 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:06:24,201 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 23, 23, 23, 23, 23, 23, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:06:24,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 01:06:24,201 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:06:24,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:06:24,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1671523671, now seen corresponding path program 1 times [2022-11-26 01:06:24,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:06:24,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703432141] [2022-11-26 01:06:24,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:06:24,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:06:24,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:06:26,018 INFO L134 CoverageAnalysis]: Checked inductivity of 5569 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 5557 trivial. 0 not checked. [2022-11-26 01:06:26,019 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:06:26,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703432141] [2022-11-26 01:06:26,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703432141] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 01:06:26,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524766663] [2022-11-26 01:06:26,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:06:26,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:06:26,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa31404-c60c-4cfc-b8ff-81ba0934e718/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:06:26,027 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa31404-c60c-4cfc-b8ff-81ba0934e718/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:06:26,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa31404-c60c-4cfc-b8ff-81ba0934e718/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 01:06:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:06:28,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 6044 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-26 01:06:28,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:06:29,389 INFO L134 CoverageAnalysis]: Checked inductivity of 5569 backedges. 537 proven. 1 refuted. 0 times theorem prover too weak. 5031 trivial. 0 not checked. [2022-11-26 01:06:29,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 01:06:30,818 INFO L134 CoverageAnalysis]: Checked inductivity of 5569 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 5557 trivial. 0 not checked. [2022-11-26 01:06:30,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524766663] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 01:06:30,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2044935083] [2022-11-26 01:06:30,852 INFO L159 IcfgInterpreter]: Started Sifa with 190 locations of interest [2022-11-26 01:06:30,853 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 01:06:30,859 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 01:06:30,865 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 01:06:30,865 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 01:06:34,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:34,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:34,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:34,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:34,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:34,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:34,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:34,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:34,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 77 select indices, 77 select index equivalence classes, 249 disjoint index pairs (out of 2926 index pairs), introduced 77 new quantified variables, introduced 0 case distinctions, treesize of input 592 treesize of output 808 [2022-11-26 01:06:35,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 301 treesize of output 258 [2022-11-26 01:06:37,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:37,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:37,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:37,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:37,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:37,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:37,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:37,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:37,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:37,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:37,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:37,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:37,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:37,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:37,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:37,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:37,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:37,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:37,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:37,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:37,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:37,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:37,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:06:38,508 INFO L217 Elim1Store]: Index analysis took 3037 ms [2022-11-26 01:13:53,528 WARN L233 SmtUtils]: Spent 7.25m on a formula simplification. DAG size of input: 5660 DAG size of output: 1923 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-26 01:13:53,548 INFO L321 Elim1Store]: treesize reduction 70705, result has 6.7 percent of original size [2022-11-26 01:13:53,550 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 64 select indices, 64 select index equivalence classes, 2062 disjoint index pairs (out of 2016 index pairs), introduced 64 new quantified variables, introduced 85 case distinctions, treesize of input 393 treesize of output 5264 [2022-11-26 01:13:59,309 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 293 treesize of output 250 [2022-11-26 01:14:18,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:14:28,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:14:39,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:14:41,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:14:51,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:14:55,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:15:01,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:15:05,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:15:10,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:15:16,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:15:19,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:15:24,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:15:26,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:15:29,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:15:30,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:15:32,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:15:36,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:15:38,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:15:39,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:15:39,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:15:39,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:15:39,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:15:39,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 01:15:41,261 INFO L217 Elim1Store]: Index analysis took 86067 ms