./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--scsi--sg.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--sg.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 884b97cc6fb4051ca91e84ac99a2a164f2566357f30136c91fcf54410ed45574 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 12:44:00,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:44:00,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:44:00,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:44:00,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:44:00,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:44:00,902 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:44:00,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:44:00,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:44:00,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:44:00,905 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:44:00,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:44:00,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:44:00,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:44:00,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:44:00,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:44:00,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:44:00,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:44:00,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:44:00,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:44:00,912 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:44:00,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:44:00,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:44:00,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:44:00,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:44:00,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:44:00,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:44:00,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:44:00,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:44:00,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:44:00,921 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:44:00,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:44:00,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:44:00,923 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:44:00,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:44:00,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:44:00,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:44:00,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:44:00,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:44:00,925 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:44:00,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:44:00,927 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 12:44:00,941 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:44:00,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:44:00,942 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:44:00,942 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:44:00,942 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:44:00,942 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:44:00,942 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:44:00,943 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:44:00,943 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:44:00,943 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:44:00,943 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:44:00,943 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:44:00,943 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:44:00,943 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:44:00,943 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:44:00,944 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:44:00,944 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:44:00,944 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:44:00,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:44:00,944 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:44:00,945 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:44:00,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:44:00,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:44:00,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:44:00,945 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:44:00,945 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:44:00,945 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:44:00,946 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:44:00,946 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:44:00,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:44:00,946 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:44:00,946 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:44:00,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:44:00,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:44:00,947 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:44:00,947 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:44:00,947 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:44:00,947 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:44:00,947 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_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 884b97cc6fb4051ca91e84ac99a2a164f2566357f30136c91fcf54410ed45574 [2022-12-14 12:44:01,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:44:01,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:44:01,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:44:01,155 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:44:01,156 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:44:01,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--sg.ko-entry_point.cil.out.i [2022-12-14 12:44:03,731 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:44:04,220 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:44:04,220 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--sg.ko-entry_point.cil.out.i [2022-12-14 12:44:04,258 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/data/15a8c7fd4/db3eabe22caf4293a075b1f8114d320a/FLAG8fe21119f [2022-12-14 12:44:04,299 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/data/15a8c7fd4/db3eabe22caf4293a075b1f8114d320a [2022-12-14 12:44:04,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:44:04,301 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:44:04,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:44:04,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:44:04,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:44:04,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:44:04" (1/1) ... [2022-12-14 12:44:04,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67e63f1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:04, skipping insertion in model container [2022-12-14 12:44:04,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:44:04" (1/1) ... [2022-12-14 12:44:04,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:44:04,427 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:44:04,904 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 12:44:04,947 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:44:04,997 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:44:05,028 WARN L623 FunctionHandler]: Unknown extern function __xadd_wrong_size [2022-12-14 12:44:05,042 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:44:05,151 WARN L623 FunctionHandler]: Unknown extern function __msecs_to_jiffies [2022-12-14 12:44:05,206 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-12-14 12:44:05,248 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:44:05,250 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:44:05,251 WARN L623 FunctionHandler]: Unknown extern function idr_find_slowpath [2022-12-14 12:44:05,269 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:44:05,274 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:44:05,321 WARN L623 FunctionHandler]: Unknown extern function __kmalloc [2022-12-14 12:44:05,509 WARN L623 FunctionHandler]: Unknown extern function __get_page_tail [2022-12-14 12:44:05,510 WARN L623 FunctionHandler]: Unknown extern function dump_page [2022-12-14 12:44:05,549 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:05,559 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:05,577 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:05,578 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 12:44:05,578 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 12:44:05,582 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:05,583 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 12:44:05,583 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 12:44:05,784 WARN L623 FunctionHandler]: Unknown extern function proc_create_data [2022-12-14 12:44:05,871 WARN L623 FunctionHandler]: Unknown extern function blk_verify_command [2022-12-14 12:44:05,875 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 12:44:05,875 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 12:44:05,876 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 12:44:05,877 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 12:44:05,877 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 12:44:05,878 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 12:44:05,878 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 12:44:05,878 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 12:44:05,879 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 12:44:05,880 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 12:44:05,880 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 12:44:05,880 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 12:44:05,887 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:05,888 WARN L623 FunctionHandler]: Unknown extern function scsi_device_get [2022-12-14 12:44:05,888 WARN L623 FunctionHandler]: Unknown extern function scsi_autopm_get_device [2022-12-14 12:44:05,888 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-14 12:44:05,889 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 12:44:05,891 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 12:44:05,891 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 12:44:05,892 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 12:44:05,892 WARN L623 FunctionHandler]: Unknown extern function scsi_autopm_put_device [2022-12-14 12:44:05,892 WARN L623 FunctionHandler]: Unknown extern function scsi_device_put [2022-12-14 12:44:05,897 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:05,898 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 12:44:05,898 WARN L623 FunctionHandler]: Unknown extern function scsi_autopm_put_device [2022-12-14 12:44:05,899 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 12:44:05,899 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 12:44:05,899 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 12:44:05,907 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:05,910 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:05,912 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 12:44:05,913 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 12:44:05,915 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 12:44:05,915 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 12:44:05,923 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:05,938 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:05,939 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-14 12:44:05,942 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:05,944 WARN L623 FunctionHandler]: Unknown extern function __get_user_bad [2022-12-14 12:44:05,947 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:05,953 WARN L623 FunctionHandler]: Unknown extern function ___ratelimit [2022-12-14 12:44:05,953 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:44:05,956 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:05,963 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:05,964 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:05,965 WARN L623 FunctionHandler]: Unknown extern function blk_end_request_all [2022-12-14 12:44:05,965 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 12:44:05,966 WARN L623 FunctionHandler]: Unknown extern function blk_execute_rq_nowait [2022-12-14 12:44:05,971 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 12:44:05,971 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:05,981 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:05,983 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-14 12:44:05,984 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 12:44:05,984 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 12:44:05,985 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 12:44:05,985 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 12:44:05,986 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irq [2022-12-14 12:44:05,986 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irq [2022-12-14 12:44:05,987 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irq [2022-12-14 12:44:05,987 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:05,988 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:05,990 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:05,992 WARN L623 FunctionHandler]: Unknown extern function __put_user_bad [2022-12-14 12:44:05,993 WARN L623 FunctionHandler]: Unknown extern function __put_user_bad [2022-12-14 12:44:05,993 WARN L623 FunctionHandler]: Unknown extern function __put_user_bad [2022-12-14 12:44:05,993 WARN L623 FunctionHandler]: Unknown extern function __put_user_bad [2022-12-14 12:44:05,994 WARN L623 FunctionHandler]: Unknown extern function __put_user_bad [2022-12-14 12:44:05,994 WARN L623 FunctionHandler]: Unknown extern function __put_user_bad [2022-12-14 12:44:05,995 WARN L623 FunctionHandler]: Unknown extern function __put_user_bad [2022-12-14 12:44:05,995 WARN L623 FunctionHandler]: Unknown extern function __put_user_bad [2022-12-14 12:44:05,996 WARN L623 FunctionHandler]: Unknown extern function __put_user_bad [2022-12-14 12:44:05,996 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:05,997 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 12:44:05,998 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:05,998 WARN L623 FunctionHandler]: Unknown extern function __put_user_bad [2022-12-14 12:44:05,999 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:05,999 WARN L623 FunctionHandler]: Unknown extern function __put_user_bad [2022-12-14 12:44:05,999 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 12:44:06,000 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:06,000 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,001 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,002 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,003 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,004 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,005 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,006 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,006 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,007 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,007 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,008 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,010 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 12:44:06,011 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 12:44:06,013 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:06,013 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:06,014 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,015 WARN L623 FunctionHandler]: Unknown extern function sg_scsi_ioctl [2022-12-14 12:44:06,016 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,016 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,017 WARN L623 FunctionHandler]: Unknown extern function blk_trace_setup [2022-12-14 12:44:06,018 WARN L623 FunctionHandler]: Unknown extern function blk_trace_startstop [2022-12-14 12:44:06,018 WARN L623 FunctionHandler]: Unknown extern function blk_trace_startstop [2022-12-14 12:44:06,018 WARN L623 FunctionHandler]: Unknown extern function blk_trace_remove [2022-12-14 12:44:06,019 WARN L623 FunctionHandler]: Unknown extern function scsi_ioctl_block_when_processing_errors [2022-12-14 12:44:06,020 WARN L623 FunctionHandler]: Unknown extern function scsi_ioctl [2022-12-14 12:44:06,031 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 12:44:06,032 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:06,033 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,039 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,039 WARN L623 FunctionHandler]: Unknown extern function fasync_helper [2022-12-14 12:44:06,046 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,056 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,063 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:44:06,064 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:44:06,065 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:44:06,066 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,066 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 12:44:06,068 WARN L623 FunctionHandler]: Unknown extern function __scsi_print_sense [2022-12-14 12:44:06,068 WARN L623 FunctionHandler]: Unknown extern function scsi_normalize_sense [2022-12-14 12:44:06,069 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:06,069 WARN L623 FunctionHandler]: Unknown extern function __blk_put_request [2022-12-14 12:44:06,070 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 12:44:06,070 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 12:44:06,070 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 12:44:06,071 WARN L623 FunctionHandler]: Unknown extern function kill_fasync [2022-12-14 12:44:06,071 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 12:44:06,071 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 12:44:06,077 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,077 WARN L623 FunctionHandler]: Unknown extern function idr_preload [2022-12-14 12:44:06,078 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 12:44:06,078 WARN L623 FunctionHandler]: Unknown extern function idr_alloc [2022-12-14 12:44:06,078 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,088 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,089 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,090 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:44:06,090 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 12:44:06,091 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 12:44:06,091 WARN L623 FunctionHandler]: Unknown extern function __rwlock_init [2022-12-14 12:44:06,092 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 12:44:06,092 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:06,093 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-12-14 12:44:06,094 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:44:06,094 WARN L623 FunctionHandler]: Unknown extern function cdev_alloc [2022-12-14 12:44:06,095 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:44:06,095 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:44:06,096 WARN L623 FunctionHandler]: Unknown extern function cdev_add [2022-12-14 12:44:06,096 WARN L623 FunctionHandler]: Unknown extern function device_create [2022-12-14 12:44:06,097 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:44:06,098 WARN L623 FunctionHandler]: Unknown extern function sysfs_create_link [2022-12-14 12:44:06,098 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:44:06,099 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:44:06,099 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,099 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 12:44:06,100 WARN L623 FunctionHandler]: Unknown extern function idr_remove [2022-12-14 12:44:06,100 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 12:44:06,100 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:06,100 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-14 12:44:06,101 WARN L623 FunctionHandler]: Unknown extern function cdev_del [2022-12-14 12:44:06,101 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 12:44:06,102 WARN L623 FunctionHandler]: Unknown extern function idr_remove [2022-12-14 12:44:06,102 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 12:44:06,102 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,103 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-14 12:44:06,103 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:06,105 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,105 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 12:44:06,106 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 12:44:06,106 WARN L623 FunctionHandler]: Unknown extern function kill_fasync [2022-12-14 12:44:06,107 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 12:44:06,107 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:06,107 WARN L623 FunctionHandler]: Unknown extern function sysfs_remove_link [2022-12-14 12:44:06,108 WARN L623 FunctionHandler]: Unknown extern function device_destroy [2022-12-14 12:44:06,108 WARN L623 FunctionHandler]: Unknown extern function cdev_del [2022-12-14 12:44:06,113 WARN L623 FunctionHandler]: Unknown extern function register_chrdev_region [2022-12-14 12:44:06,114 WARN L623 FunctionHandler]: Unknown extern function __class_create [2022-12-14 12:44:06,115 WARN L623 FunctionHandler]: Unknown extern function scsi_register_interface [2022-12-14 12:44:06,115 WARN L623 FunctionHandler]: Unknown extern function class_destroy [2022-12-14 12:44:06,115 WARN L623 FunctionHandler]: Unknown extern function unregister_chrdev_region [2022-12-14 12:44:06,119 WARN L623 FunctionHandler]: Unknown extern function class_interface_unregister [2022-12-14 12:44:06,120 WARN L623 FunctionHandler]: Unknown extern function class_destroy [2022-12-14 12:44:06,120 WARN L623 FunctionHandler]: Unknown extern function unregister_chrdev_region [2022-12-14 12:44:06,120 WARN L623 FunctionHandler]: Unknown extern function idr_destroy [2022-12-14 12:44:06,122 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,123 WARN L623 FunctionHandler]: Unknown extern function blk_get_request [2022-12-14 12:44:06,124 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:06,124 WARN L623 FunctionHandler]: Unknown extern function blk_rq_set_block_pc [2022-12-14 12:44:06,127 WARN L623 FunctionHandler]: Unknown extern function import_iovec [2022-12-14 12:44:06,127 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_user_iov [2022-12-14 12:44:06,128 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:06,128 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_user [2022-12-14 12:44:06,129 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,130 WARN L623 FunctionHandler]: Unknown extern function blk_rq_unmap_user [2022-12-14 12:44:06,131 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:06,131 WARN L623 FunctionHandler]: Unknown extern function blk_put_request [2022-12-14 12:44:06,137 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,139 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 12:44:06,139 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 12:44:06,140 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,142 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,142 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 12:44:06,144 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,145 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,146 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 12:44:06,146 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:06,147 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,150 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,152 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,154 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,156 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,157 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 12:44:06,159 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 12:44:06,159 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 12:44:06,162 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 12:44:06,162 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 12:44:06,163 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 12:44:06,164 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 12:44:06,166 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 12:44:06,167 WARN L623 FunctionHandler]: Unknown extern function __rwlock_init [2022-12-14 12:44:06,168 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 12:44:06,168 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 12:44:06,169 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 12:44:06,169 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,171 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,178 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,179 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,180 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:06,180 WARN L623 FunctionHandler]: Unknown extern function scsi_device_put [2022-12-14 12:44:06,182 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 12:44:06,182 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:44:06,182 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 12:44:06,182 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 12:44:06,183 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 12:44:06,184 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 12:44:06,185 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:06,195 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 12:44:06,195 WARN L623 FunctionHandler]: Unknown extern function idr_for_each [2022-12-14 12:44:06,196 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:06,202 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 12:44:06,202 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:06,270 WARN L623 FunctionHandler]: Unknown extern function proc_mkdir [2022-12-14 12:44:06,272 WARN L623 FunctionHandler]: Unknown extern function remove_proc_entry [2022-12-14 12:44:06,272 WARN L623 FunctionHandler]: Unknown extern function remove_proc_entry [2022-12-14 12:44:06,272 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,273 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-12-14 12:44:06,273 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 12:44:06,274 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 12:44:06,274 WARN L623 FunctionHandler]: Unknown extern function kstrtoul_from_user [2022-12-14 12:44:06,275 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-12-14 12:44:06,275 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 12:44:06,275 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 12:44:06,276 WARN L623 FunctionHandler]: Unknown extern function kstrtoul_from_user [2022-12-14 12:44:06,276 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,277 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-12-14 12:44:06,277 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 12:44:06,278 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-12-14 12:44:06,279 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:06,280 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 12:44:06,281 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 12:44:06,281 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 12:44:06,282 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,282 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:06,283 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 12:44:06,284 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,284 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 12:44:06,284 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 12:44:06,285 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:06,289 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock [2022-12-14 12:44:06,289 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 12:44:06,289 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,290 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,291 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 12:44:06,292 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 12:44:06,292 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,293 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,293 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 12:44:06,294 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 12:44:06,294 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,294 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,295 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 12:44:06,295 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock [2022-12-14 12:44:06,296 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,297 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 12:44:06,297 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock [2022-12-14 12:44:06,298 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,298 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 12:44:06,298 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,299 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,299 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock [2022-12-14 12:44:06,300 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:06,318 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 12:44:06,320 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 12:44:06,321 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-12-14 12:44:06,321 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 12:44:06,324 WARN L623 FunctionHandler]: Unknown extern function no_llseek [2022-12-14 12:44:06,325 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 12:44:06,325 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 12:44:06,326 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 12:44:06,327 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-12-14 12:44:06,327 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 12:44:06,328 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 12:44:06,328 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-12-14 12:44:06,328 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 12:44:06,329 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 12:44:06,330 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 12:44:06,330 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 12:44:06,331 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 12:44:06,331 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 12:44:06,331 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-12-14 12:44:06,332 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 12:44:06,334 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 12:44:06,334 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 12:44:06,335 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 12:44:06,335 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 12:44:06,335 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 12:44:06,336 WARN L623 FunctionHandler]: Unknown extern function seq_open [2022-12-14 12:44:06,336 WARN L623 FunctionHandler]: Unknown extern function seq_open [2022-12-14 12:44:06,336 WARN L623 FunctionHandler]: Unknown extern function seq_open [2022-12-14 12:44:06,337 WARN L623 FunctionHandler]: Unknown extern function seq_release [2022-12-14 12:44:06,337 WARN L623 FunctionHandler]: Unknown extern function seq_release [2022-12-14 12:44:06,337 WARN L623 FunctionHandler]: Unknown extern function seq_release [2022-12-14 12:44:06,341 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_5be47f9c-f308-4434-889e-baf1ead8e460/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--sg.ko-entry_point.cil.out.i[397949,397962] [2022-12-14 12:44:06,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:44:06,402 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:44:06,471 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 12:44:06,472 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:44:06,472 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:44:06,473 WARN L623 FunctionHandler]: Unknown extern function __xadd_wrong_size [2022-12-14 12:44:06,474 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 12:44:06,475 WARN L623 FunctionHandler]: Unknown extern function __msecs_to_jiffies [2022-12-14 12:44:06,475 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-12-14 12:44:06,477 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:44:06,477 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 12:44:06,478 WARN L623 FunctionHandler]: Unknown extern function idr_find_slowpath [2022-12-14 12:44:06,479 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:44:06,479 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:44:06,480 WARN L623 FunctionHandler]: Unknown extern function __kmalloc [2022-12-14 12:44:06,484 WARN L623 FunctionHandler]: Unknown extern function __get_page_tail [2022-12-14 12:44:06,484 WARN L623 FunctionHandler]: Unknown extern function dump_page [2022-12-14 12:44:06,486 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,487 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,488 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,488 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 12:44:06,488 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 12:44:06,488 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,489 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 12:44:06,489 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 12:44:06,494 WARN L623 FunctionHandler]: Unknown extern function proc_create_data [2022-12-14 12:44:06,496 WARN L623 FunctionHandler]: Unknown extern function blk_verify_command [2022-12-14 12:44:06,497 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 12:44:06,497 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 12:44:06,497 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 12:44:06,498 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 12:44:06,498 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 12:44:06,498 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 12:44:06,498 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 12:44:06,498 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 12:44:06,499 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 12:44:06,499 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 12:44:06,500 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 12:44:06,500 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 12:44:06,501 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,502 WARN L623 FunctionHandler]: Unknown extern function scsi_device_get [2022-12-14 12:44:06,502 WARN L623 FunctionHandler]: Unknown extern function scsi_autopm_get_device [2022-12-14 12:44:06,502 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-14 12:44:06,502 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 12:44:06,503 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 12:44:06,504 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 12:44:06,504 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 12:44:06,504 WARN L623 FunctionHandler]: Unknown extern function scsi_autopm_put_device [2022-12-14 12:44:06,504 WARN L623 FunctionHandler]: Unknown extern function scsi_device_put [2022-12-14 12:44:06,509 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,509 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 12:44:06,510 WARN L623 FunctionHandler]: Unknown extern function scsi_autopm_put_device [2022-12-14 12:44:06,510 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 12:44:06,510 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 12:44:06,510 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 12:44:06,515 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,517 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:06,517 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 12:44:06,518 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 12:44:06,519 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 12:44:06,519 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 12:44:06,521 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:06,529 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,529 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-14 12:44:06,531 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,531 WARN L623 FunctionHandler]: Unknown extern function __get_user_bad [2022-12-14 12:44:06,532 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,535 WARN L623 FunctionHandler]: Unknown extern function ___ratelimit [2022-12-14 12:44:06,535 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:44:06,537 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,547 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,550 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,553 WARN L623 FunctionHandler]: Unknown extern function blk_end_request_all [2022-12-14 12:44:06,554 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 12:44:06,554 WARN L623 FunctionHandler]: Unknown extern function blk_execute_rq_nowait [2022-12-14 12:44:06,556 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 12:44:06,557 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:06,563 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,563 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-14 12:44:06,564 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 12:44:06,565 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 12:44:06,565 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 12:44:06,565 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 12:44:06,566 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irq [2022-12-14 12:44:06,566 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irq [2022-12-14 12:44:06,566 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irq [2022-12-14 12:44:06,567 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,567 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,568 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,580 WARN L623 FunctionHandler]: Unknown extern function __put_user_bad [2022-12-14 12:44:06,581 WARN L623 FunctionHandler]: Unknown extern function __put_user_bad [2022-12-14 12:44:06,581 WARN L623 FunctionHandler]: Unknown extern function __put_user_bad [2022-12-14 12:44:06,581 WARN L623 FunctionHandler]: Unknown extern function __put_user_bad [2022-12-14 12:44:06,581 WARN L623 FunctionHandler]: Unknown extern function __put_user_bad [2022-12-14 12:44:06,582 WARN L623 FunctionHandler]: Unknown extern function __put_user_bad [2022-12-14 12:44:06,582 WARN L623 FunctionHandler]: Unknown extern function __put_user_bad [2022-12-14 12:44:06,582 WARN L623 FunctionHandler]: Unknown extern function __put_user_bad [2022-12-14 12:44:06,582 WARN L623 FunctionHandler]: Unknown extern function __put_user_bad [2022-12-14 12:44:06,583 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,583 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 12:44:06,584 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:06,584 WARN L623 FunctionHandler]: Unknown extern function __put_user_bad [2022-12-14 12:44:06,586 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:06,586 WARN L623 FunctionHandler]: Unknown extern function __put_user_bad [2022-12-14 12:44:06,587 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 12:44:06,589 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:06,589 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,589 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,590 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,591 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,591 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,592 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,592 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,592 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,593 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,593 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,594 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,595 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 12:44:06,596 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 12:44:06,598 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:06,599 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:06,599 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,600 WARN L623 FunctionHandler]: Unknown extern function sg_scsi_ioctl [2022-12-14 12:44:06,600 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,601 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 12:44:06,601 WARN L623 FunctionHandler]: Unknown extern function blk_trace_setup [2022-12-14 12:44:06,602 WARN L623 FunctionHandler]: Unknown extern function blk_trace_startstop [2022-12-14 12:44:06,602 WARN L623 FunctionHandler]: Unknown extern function blk_trace_startstop [2022-12-14 12:44:06,602 WARN L623 FunctionHandler]: Unknown extern function blk_trace_remove [2022-12-14 12:44:06,603 WARN L623 FunctionHandler]: Unknown extern function scsi_ioctl_block_when_processing_errors [2022-12-14 12:44:06,603 WARN L623 FunctionHandler]: Unknown extern function scsi_ioctl [2022-12-14 12:44:06,611 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 12:44:06,612 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:06,613 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,615 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,615 WARN L623 FunctionHandler]: Unknown extern function fasync_helper [2022-12-14 12:44:06,616 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,619 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,623 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:44:06,624 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 12:44:06,625 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:44:06,626 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,626 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 12:44:06,627 WARN L623 FunctionHandler]: Unknown extern function __scsi_print_sense [2022-12-14 12:44:06,627 WARN L623 FunctionHandler]: Unknown extern function scsi_normalize_sense [2022-12-14 12:44:06,628 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:06,628 WARN L623 FunctionHandler]: Unknown extern function __blk_put_request [2022-12-14 12:44:06,629 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 12:44:06,629 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 12:44:06,629 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 12:44:06,630 WARN L623 FunctionHandler]: Unknown extern function kill_fasync [2022-12-14 12:44:06,630 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 12:44:06,630 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 12:44:06,631 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,632 WARN L623 FunctionHandler]: Unknown extern function idr_preload [2022-12-14 12:44:06,632 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 12:44:06,632 WARN L623 FunctionHandler]: Unknown extern function idr_alloc [2022-12-14 12:44:06,632 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,633 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,633 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,633 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 12:44:06,634 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 12:44:06,634 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 12:44:06,634 WARN L623 FunctionHandler]: Unknown extern function __rwlock_init [2022-12-14 12:44:06,634 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 12:44:06,634 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:06,636 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-12-14 12:44:06,636 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:44:06,636 WARN L623 FunctionHandler]: Unknown extern function cdev_alloc [2022-12-14 12:44:06,636 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:44:06,637 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:44:06,637 WARN L623 FunctionHandler]: Unknown extern function cdev_add [2022-12-14 12:44:06,637 WARN L623 FunctionHandler]: Unknown extern function device_create [2022-12-14 12:44:06,638 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:44:06,638 WARN L623 FunctionHandler]: Unknown extern function sysfs_create_link [2022-12-14 12:44:06,638 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:44:06,639 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 12:44:06,639 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,639 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 12:44:06,639 WARN L623 FunctionHandler]: Unknown extern function idr_remove [2022-12-14 12:44:06,639 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 12:44:06,640 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:06,640 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-14 12:44:06,640 WARN L623 FunctionHandler]: Unknown extern function cdev_del [2022-12-14 12:44:06,640 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 12:44:06,640 WARN L623 FunctionHandler]: Unknown extern function idr_remove [2022-12-14 12:44:06,641 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 12:44:06,641 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,641 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-14 12:44:06,641 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:06,643 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,643 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 12:44:06,643 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 12:44:06,644 WARN L623 FunctionHandler]: Unknown extern function kill_fasync [2022-12-14 12:44:06,644 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 12:44:06,644 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:06,644 WARN L623 FunctionHandler]: Unknown extern function sysfs_remove_link [2022-12-14 12:44:06,645 WARN L623 FunctionHandler]: Unknown extern function device_destroy [2022-12-14 12:44:06,645 WARN L623 FunctionHandler]: Unknown extern function cdev_del [2022-12-14 12:44:06,645 WARN L623 FunctionHandler]: Unknown extern function register_chrdev_region [2022-12-14 12:44:06,646 WARN L623 FunctionHandler]: Unknown extern function __class_create [2022-12-14 12:44:06,646 WARN L623 FunctionHandler]: Unknown extern function scsi_register_interface [2022-12-14 12:44:06,646 WARN L623 FunctionHandler]: Unknown extern function class_destroy [2022-12-14 12:44:06,646 WARN L623 FunctionHandler]: Unknown extern function unregister_chrdev_region [2022-12-14 12:44:06,647 WARN L623 FunctionHandler]: Unknown extern function class_interface_unregister [2022-12-14 12:44:06,647 WARN L623 FunctionHandler]: Unknown extern function class_destroy [2022-12-14 12:44:06,647 WARN L623 FunctionHandler]: Unknown extern function unregister_chrdev_region [2022-12-14 12:44:06,647 WARN L623 FunctionHandler]: Unknown extern function idr_destroy [2022-12-14 12:44:06,649 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,657 WARN L623 FunctionHandler]: Unknown extern function blk_get_request [2022-12-14 12:44:06,657 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:06,657 WARN L623 FunctionHandler]: Unknown extern function blk_rq_set_block_pc [2022-12-14 12:44:06,659 WARN L623 FunctionHandler]: Unknown extern function import_iovec [2022-12-14 12:44:06,659 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_user_iov [2022-12-14 12:44:06,659 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:06,659 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_user [2022-12-14 12:44:06,661 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,662 WARN L623 FunctionHandler]: Unknown extern function blk_rq_unmap_user [2022-12-14 12:44:06,662 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:06,662 WARN L623 FunctionHandler]: Unknown extern function blk_put_request [2022-12-14 12:44:06,664 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,665 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 12:44:06,666 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 12:44:06,667 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,668 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,669 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 12:44:06,670 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,671 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,672 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 12:44:06,673 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:06,673 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,676 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,677 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,679 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,680 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,682 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 12:44:06,683 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 12:44:06,683 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 12:44:06,686 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 12:44:06,686 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 12:44:06,687 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 12:44:06,689 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 12:44:06,690 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 12:44:06,690 WARN L623 FunctionHandler]: Unknown extern function __rwlock_init [2022-12-14 12:44:06,692 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 12:44:06,692 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 12:44:06,692 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 12:44:06,692 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,693 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,695 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,696 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 12:44:06,696 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:06,696 WARN L623 FunctionHandler]: Unknown extern function scsi_device_put [2022-12-14 12:44:06,698 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock_irqsave [2022-12-14 12:44:06,698 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 12:44:06,698 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock_irqrestore [2022-12-14 12:44:06,698 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 12:44:06,698 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 12:44:06,699 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 12:44:06,711 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:06,712 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 12:44:06,712 WARN L623 FunctionHandler]: Unknown extern function idr_for_each [2022-12-14 12:44:06,712 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:06,713 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 12:44:06,713 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:06,717 WARN L623 FunctionHandler]: Unknown extern function proc_mkdir [2022-12-14 12:44:06,718 WARN L623 FunctionHandler]: Unknown extern function remove_proc_entry [2022-12-14 12:44:06,719 WARN L623 FunctionHandler]: Unknown extern function remove_proc_entry [2022-12-14 12:44:06,719 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,719 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-12-14 12:44:06,720 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 12:44:06,720 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 12:44:06,720 WARN L623 FunctionHandler]: Unknown extern function kstrtoul_from_user [2022-12-14 12:44:06,721 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-12-14 12:44:06,721 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 12:44:06,722 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 12:44:06,722 WARN L623 FunctionHandler]: Unknown extern function kstrtoul_from_user [2022-12-14 12:44:06,723 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,723 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-12-14 12:44:06,723 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 12:44:06,724 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-12-14 12:44:06,725 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 12:44:06,726 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 12:44:06,726 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 12:44:06,727 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 12:44:06,727 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,727 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:06,728 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 12:44:06,729 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,729 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 12:44:06,729 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 12:44:06,730 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:06,730 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock [2022-12-14 12:44:06,731 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 12:44:06,731 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,731 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,732 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 12:44:06,732 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 12:44:06,733 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,733 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,734 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 12:44:06,734 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 12:44:06,734 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,735 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,736 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 12:44:06,736 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock [2022-12-14 12:44:06,737 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,738 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock_irqsave [2022-12-14 12:44:06,738 WARN L623 FunctionHandler]: Unknown extern function _raw_read_lock [2022-12-14 12:44:06,739 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,739 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 12:44:06,739 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,740 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 12:44:06,740 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock [2022-12-14 12:44:06,740 WARN L623 FunctionHandler]: Unknown extern function _raw_read_unlock_irqrestore [2022-12-14 12:44:06,750 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 12:44:06,752 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 12:44:06,753 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-12-14 12:44:06,753 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 12:44:06,756 WARN L623 FunctionHandler]: Unknown extern function no_llseek [2022-12-14 12:44:06,757 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 12:44:06,758 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 12:44:06,759 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 12:44:06,760 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-12-14 12:44:06,760 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 12:44:06,761 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 12:44:06,761 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-12-14 12:44:06,761 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 12:44:06,762 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 12:44:06,763 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 12:44:06,763 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 12:44:06,764 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 12:44:06,764 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 12:44:06,765 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-12-14 12:44:06,765 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 12:44:06,768 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 12:44:06,768 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 12:44:06,768 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 12:44:06,769 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 12:44:06,769 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 12:44:06,770 WARN L623 FunctionHandler]: Unknown extern function seq_open [2022-12-14 12:44:06,770 WARN L623 FunctionHandler]: Unknown extern function seq_open [2022-12-14 12:44:06,770 WARN L623 FunctionHandler]: Unknown extern function seq_open [2022-12-14 12:44:06,771 WARN L623 FunctionHandler]: Unknown extern function seq_release [2022-12-14 12:44:06,771 WARN L623 FunctionHandler]: Unknown extern function seq_release [2022-12-14 12:44:06,771 WARN L623 FunctionHandler]: Unknown extern function seq_release [2022-12-14 12:44:06,772 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_5be47f9c-f308-4434-889e-baf1ead8e460/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--sg.ko-entry_point.cil.out.i[397949,397962] [2022-12-14 12:44:06,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:44:06,832 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:44:06,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:06 WrapperNode [2022-12-14 12:44:06,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:44:06,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:44:06,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:44:06,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:44:06,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:06" (1/1) ... [2022-12-14 12:44:06,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:06" (1/1) ... [2022-12-14 12:44:07,058 INFO L138 Inliner]: procedures = 332, calls = 2875, calls flagged for inlining = 154, calls inlined = 147, statements flattened = 8653 [2022-12-14 12:44:07,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:44:07,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:44:07,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:44:07,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:44:07,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:06" (1/1) ... [2022-12-14 12:44:07,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:06" (1/1) ... [2022-12-14 12:44:07,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:06" (1/1) ... [2022-12-14 12:44:07,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:06" (1/1) ... [2022-12-14 12:44:07,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:06" (1/1) ... [2022-12-14 12:44:07,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:06" (1/1) ... [2022-12-14 12:44:07,298 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:06" (1/1) ... [2022-12-14 12:44:07,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:06" (1/1) ... [2022-12-14 12:44:07,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:44:07,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:44:07,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:44:07,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:44:07,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:06" (1/1) ... [2022-12-14 12:44:07,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:44:07,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:44:07,386 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:44:07,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:44:07,427 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-12-14 12:44:07,427 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-12-14 12:44:07,427 INFO L130 BoogieDeclarations]: Found specification of procedure sg_finish_rem_req [2022-12-14 12:44:07,427 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_finish_rem_req [2022-12-14 12:44:07,427 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-12-14 12:44:07,427 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-12-14 12:44:07,427 INFO L130 BoogieDeclarations]: Found specification of procedure sg_rq_end_io_usercontext [2022-12-14 12:44:07,427 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_rq_end_io_usercontext [2022-12-14 12:44:07,427 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2022-12-14 12:44:07,427 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2022-12-14 12:44:07,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 12:44:07,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 12:44:07,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 12:44:07,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 12:44:07,428 INFO L130 BoogieDeclarations]: Found specification of procedure seq_puts [2022-12-14 12:44:07,428 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_puts [2022-12-14 12:44:07,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 12:44:07,428 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 12:44:07,428 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-12-14 12:44:07,428 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-12-14 12:44:07,428 INFO L130 BoogieDeclarations]: Found specification of procedure srp_done [2022-12-14 12:44:07,428 INFO L138 BoogieDeclarations]: Found implementation of procedure srp_done [2022-12-14 12:44:07,428 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2022-12-14 12:44:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2022-12-14 12:44:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-12-14 12:44:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-12-14 12:44:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-12-14 12:44:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-12-14 12:44:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 12:44:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 12:44:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2022-12-14 12:44:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2022-12-14 12:44:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-12-14 12:44:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-12-14 12:44:07,429 INFO L130 BoogieDeclarations]: Found specification of procedure sg_mmap [2022-12-14 12:44:07,429 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_mmap [2022-12-14 12:44:07,430 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-12-14 12:44:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-12-14 12:44:07,430 INFO L130 BoogieDeclarations]: Found specification of procedure sg_res_in_use [2022-12-14 12:44:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_res_in_use [2022-12-14 12:44:07,430 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-14 12:44:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-14 12:44:07,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-14 12:44:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-14 12:44:07,430 INFO L130 BoogieDeclarations]: Found specification of procedure sg_poll [2022-12-14 12:44:07,430 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_poll [2022-12-14 12:44:07,430 INFO L130 BoogieDeclarations]: Found specification of procedure __put_user_bad [2022-12-14 12:44:07,430 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2022-12-14 12:44:07,431 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2022-12-14 12:44:07,431 INFO L130 BoogieDeclarations]: Found specification of procedure max_sectors_bytes [2022-12-14 12:44:07,431 INFO L138 BoogieDeclarations]: Found implementation of procedure max_sectors_bytes [2022-12-14 12:44:07,431 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_put [2022-12-14 12:44:07,431 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_put [2022-12-14 12:44:07,431 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-12-14 12:44:07,431 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-12-14 12:44:07,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 12:44:07,431 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 12:44:07,431 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 12:44:07,431 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 12:44:07,431 INFO L130 BoogieDeclarations]: Found specification of procedure sg_remove_request [2022-12-14 12:44:07,432 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_remove_request [2022-12-14 12:44:07,432 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-12-14 12:44:07,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-12-14 12:44:07,432 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_irqsave [2022-12-14 12:44:07,432 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_irqsave [2022-12-14 12:44:07,432 INFO L130 BoogieDeclarations]: Found specification of procedure sg_common_write [2022-12-14 12:44:07,432 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_common_write [2022-12-14 12:44:07,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 12:44:07,432 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 12:44:07,432 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 12:44:07,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 12:44:07,432 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-12-14 12:44:07,432 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-12-14 12:44:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-12-14 12:44:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 12:44:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 12:44:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_irq [2022-12-14 12:44:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_irq [2022-12-14 12:44:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure sg_proc_write_adio [2022-12-14 12:44:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_proc_write_adio [2022-12-14 12:44:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure __free_pages [2022-12-14 12:44:07,433 INFO L138 BoogieDeclarations]: Found implementation of procedure __free_pages [2022-12-14 12:44:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 12:44:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 12:44:07,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_seq_operations_7 [2022-12-14 12:44:07,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_seq_operations_7 [2022-12-14 12:44:07,434 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-12-14 12:44:07,434 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-12-14 12:44:07,434 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_autopm_put_device [2022-12-14 12:44:07,434 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_autopm_put_device [2022-12-14 12:44:07,434 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2022-12-14 12:44:07,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2022-12-14 12:44:07,434 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-12-14 12:44:07,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-12-14 12:44:07,434 INFO L130 BoogieDeclarations]: Found specification of procedure dev_seq_stop [2022-12-14 12:44:07,434 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_seq_stop [2022-12-14 12:44:07,434 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2022-12-14 12:44:07,435 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2022-12-14 12:44:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 12:44:07,435 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 12:44:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-12-14 12:44:07,435 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-12-14 12:44:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-14 12:44:07,435 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-14 12:44:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-12-14 12:44:07,435 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-12-14 12:44:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure sg_get_rq_mark [2022-12-14 12:44:07,435 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_get_rq_mark [2022-12-14 12:44:07,435 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-12-14 12:44:07,436 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-12-14 12:44:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-12-14 12:44:07,436 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-12-14 12:44:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 12:44:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure blk_trace_startstop [2022-12-14 12:44:07,436 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_trace_startstop [2022-12-14 12:44:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure sg_allow_access [2022-12-14 12:44:07,436 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_allow_access [2022-12-14 12:44:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 12:44:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure __rwlock_init [2022-12-14 12:44:07,436 INFO L138 BoogieDeclarations]: Found implementation of procedure __rwlock_init [2022-12-14 12:44:07,436 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-12-14 12:44:07,436 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-12-14 12:44:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure dev_seq_start [2022-12-14 12:44:07,437 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_seq_start [2022-12-14 12:44:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure seq_open [2022-12-14 12:44:07,437 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_open [2022-12-14 12:44:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-12-14 12:44:07,437 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-12-14 12:44:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 12:44:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-12-14 12:44:07,437 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-12-14 12:44:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_to_user [2022-12-14 12:44:07,437 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_to_user [2022-12-14 12:44:07,437 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 12:44:07,437 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 12:44:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure sg_lookup_dev [2022-12-14 12:44:07,438 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_lookup_dev [2022-12-14 12:44:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure sg_remove_sfp_usercontext [2022-12-14 12:44:07,438 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_remove_sfp_usercontext [2022-12-14 12:44:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure sg_remove_scat [2022-12-14 12:44:07,438 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_remove_scat [2022-12-14 12:44:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure sg_fasync [2022-12-14 12:44:07,438 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_fasync [2022-12-14 12:44:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-12-14 12:44:07,438 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-12-14 12:44:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 12:44:07,438 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 12:44:07,438 INFO L130 BoogieDeclarations]: Found specification of procedure kill_fasync [2022-12-14 12:44:07,439 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_fasync [2022-12-14 12:44:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure __get_user_bad [2022-12-14 12:44:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2022-12-14 12:44:07,439 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2022-12-14 12:44:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 12:44:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-12-14 12:44:07,439 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-12-14 12:44:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-12-14 12:44:07,439 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-12-14 12:44:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release [2022-12-14 12:44:07,439 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_release [2022-12-14 12:44:07,439 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_irqrestore [2022-12-14 12:44:07,440 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_irqrestore [2022-12-14 12:44:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-12-14 12:44:07,440 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-12-14 12:44:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 12:44:07,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 12:44:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-12-14 12:44:07,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-12-14 12:44:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure sg_new_write [2022-12-14 12:44:07,440 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_new_write [2022-12-14 12:44:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure copy_user_generic [2022-12-14 12:44:07,440 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_user_generic [2022-12-14 12:44:07,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-12-14 12:44:07,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-12-14 12:44:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 12:44:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-12-14 12:44:07,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-12-14 12:44:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure seq_lseek [2022-12-14 12:44:07,441 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_lseek [2022-12-14 12:44:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:44:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_irqsave [2022-12-14 12:44:07,441 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_irqsave [2022-12-14 12:44:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 12:44:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure queue_max_segments [2022-12-14 12:44:07,441 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_max_segments [2022-12-14 12:44:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 12:44:07,441 INFO L130 BoogieDeclarations]: Found specification of procedure sg_write [2022-12-14 12:44:07,442 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_write [2022-12-14 12:44:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 12:44:07,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 12:44:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure kref_init [2022-12-14 12:44:07,442 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_init [2022-12-14 12:44:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_irqrestore [2022-12-14 12:44:07,442 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_irqrestore [2022-12-14 12:44:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-12-14 12:44:07,442 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-12-14 12:44:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure dev_seq_next [2022-12-14 12:44:07,442 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_seq_next [2022-12-14 12:44:07,442 INFO L130 BoogieDeclarations]: Found specification of procedure sg_new_read [2022-12-14 12:44:07,442 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_new_read [2022-12-14 12:44:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-12-14 12:44:07,443 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-12-14 12:44:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure sg_build_reserve [2022-12-14 12:44:07,443 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_build_reserve [2022-12-14 12:44:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-12-14 12:44:07,443 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-12-14 12:44:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure sg_add_request [2022-12-14 12:44:07,443 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_add_request [2022-12-14 12:44:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-12-14 12:44:07,443 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-12-14 12:44:07,443 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add_return [2022-12-14 12:44:07,443 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add_return [2022-12-14 12:44:07,444 INFO L130 BoogieDeclarations]: Found specification of procedure sg_proc_write_dressz [2022-12-14 12:44:07,444 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_proc_write_dressz [2022-12-14 12:44:07,444 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-12-14 12:44:07,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-12-14 12:44:07,444 INFO L130 BoogieDeclarations]: Found specification of procedure sg_build_indirect [2022-12-14 12:44:07,444 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_build_indirect [2022-12-14 12:44:07,444 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 12:44:07,444 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 12:44:07,444 INFO L130 BoogieDeclarations]: Found specification of procedure __copy_from_user [2022-12-14 12:44:07,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __copy_from_user [2022-12-14 12:44:07,444 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-12-14 12:44:07,444 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-12-14 12:44:07,444 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-12-14 12:44:07,445 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-12-14 12:44:07,445 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul_from_user [2022-12-14 12:44:07,445 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul_from_user [2022-12-14 12:44:07,445 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-12-14 12:44:07,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-12-14 12:44:07,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:44:07,445 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock [2022-12-14 12:44:07,445 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock [2022-12-14 12:44:07,445 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-12-14 12:44:07,445 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-12-14 12:44:07,445 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:44:07,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:44:07,445 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock [2022-12-14 12:44:07,446 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock [2022-12-14 12:44:07,446 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-12-14 12:44:07,446 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-12-14 12:44:08,161 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:44:08,163 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:44:08,753 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 12:44:08,812 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5379: SUMMARY for call __copy_to_user_nocheck_#t~ret199#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~2#1 then 1 else 0), 0); srcloc: null [2022-12-14 12:44:08,812 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5379-1: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret199#1 && __copy_to_user_nocheck_#t~ret199#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___1~4#1 := __copy_to_user_nocheck_#t~ret199#1;havoc __copy_to_user_nocheck_#t~ret199#1; [2022-12-14 12:44:08,812 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5367: SUMMARY for call __copy_to_user_nocheck_#t~ret198#1 := ldv__builtin_expect((if 0 != __copy_to_user_nocheck_~ret~2#1 then 1 else 0), 0); srcloc: null [2022-12-14 12:44:08,812 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5367-1: assume -9223372036854775808 <= __copy_to_user_nocheck_#t~ret198#1 && __copy_to_user_nocheck_#t~ret198#1 <= 9223372036854775807;__copy_to_user_nocheck_~tmp___0~8#1 := __copy_to_user_nocheck_#t~ret198#1;havoc __copy_to_user_nocheck_#t~ret198#1; [2022-12-14 12:44:08,812 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5388: assume __copy_to_user_nocheck_#t~switch197#1; [2022-12-14 12:44:08,812 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5388: assume !__copy_to_user_nocheck_#t~switch197#1; [2022-12-14 12:44:08,812 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5347: havoc __copy_to_user_nocheck_#t~switch197#1; [2022-12-14 12:44:08,813 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5380: assume 0 != __copy_to_user_nocheck_~tmp___1~4#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~2#1; [2022-12-14 12:44:08,813 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5380: assume !(0 != __copy_to_user_nocheck_~tmp___1~4#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~2#1; [2022-12-14 12:44:08,813 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5376: assume __copy_to_user_nocheck_#t~switch197#1; [2022-12-14 12:44:08,813 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5376: assume !__copy_to_user_nocheck_#t~switch197#1;__copy_to_user_nocheck_#t~switch197#1 := true; [2022-12-14 12:44:08,813 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5368: assume 0 != __copy_to_user_nocheck_~tmp___0~8#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~2#1; [2022-12-14 12:44:08,813 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5368: assume !(0 != __copy_to_user_nocheck_~tmp___0~8#1);__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~2#1; [2022-12-14 12:44:08,813 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5364: assume __copy_to_user_nocheck_#t~switch197#1; [2022-12-14 12:44:08,813 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5364: assume !__copy_to_user_nocheck_#t~switch197#1;__copy_to_user_nocheck_#t~switch197#1 := __copy_to_user_nocheck_#t~switch197#1 || 16 == __copy_to_user_nocheck_~size#1; [2022-12-14 12:44:08,813 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5360: assume __copy_to_user_nocheck_#t~switch197#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~2#1; [2022-12-14 12:44:08,813 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5360: assume !__copy_to_user_nocheck_#t~switch197#1;__copy_to_user_nocheck_#t~switch197#1 := __copy_to_user_nocheck_#t~switch197#1 || 10 == __copy_to_user_nocheck_~size#1; [2022-12-14 12:44:08,814 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5389: SUMMARY for call __copy_to_user_nocheck_#t~ret200#1 := copy_user_generic(__copy_to_user_nocheck_~dst#1.base, __copy_to_user_nocheck_~dst#1.offset, __copy_to_user_nocheck_~src#1.base, __copy_to_user_nocheck_~src#1.offset, __copy_to_user_nocheck_~size#1); srcloc: null [2022-12-14 12:44:08,814 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5356: assume __copy_to_user_nocheck_#t~switch197#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~2#1; [2022-12-14 12:44:08,814 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5356: assume !__copy_to_user_nocheck_#t~switch197#1;__copy_to_user_nocheck_#t~switch197#1 := __copy_to_user_nocheck_#t~switch197#1 || 8 == __copy_to_user_nocheck_~size#1; [2022-12-14 12:44:08,814 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5389-1: __copy_to_user_nocheck_~tmp___2~4#1 := __copy_to_user_nocheck_#t~ret200#1;havoc __copy_to_user_nocheck_#t~ret200#1;__copy_to_user_nocheck_#res#1 := (if __copy_to_user_nocheck_~tmp___2~4#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_to_user_nocheck_~tmp___2~4#1 % 18446744073709551616 % 4294967296 else __copy_to_user_nocheck_~tmp___2~4#1 % 18446744073709551616 % 4294967296 - 4294967296); [2022-12-14 12:44:08,814 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume __copy_to_user_nocheck_#t~switch197#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~2#1; [2022-12-14 12:44:08,814 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5352: assume __copy_to_user_nocheck_#t~switch197#1;__copy_to_user_nocheck_#res#1 := __copy_to_user_nocheck_~ret~2#1; [2022-12-14 12:44:08,814 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5352: assume !__copy_to_user_nocheck_#t~switch197#1;__copy_to_user_nocheck_#t~switch197#1 := __copy_to_user_nocheck_#t~switch197#1 || 4 == __copy_to_user_nocheck_~size#1; [2022-12-14 12:44:08,814 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !__copy_to_user_nocheck_#t~switch197#1;__copy_to_user_nocheck_#t~switch197#1 := __copy_to_user_nocheck_#t~switch197#1 || 2 == __copy_to_user_nocheck_~size#1; [2022-12-14 12:44:10,616 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5312-1: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret193#1 && __copy_from_user_nocheck_#t~ret193#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___1~3#1 := __copy_from_user_nocheck_#t~ret193#1;havoc __copy_from_user_nocheck_#t~ret193#1; [2022-12-14 12:44:10,616 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5312: SUMMARY for call __copy_from_user_nocheck_#t~ret193#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~1#1 then 1 else 0), 0); srcloc: null [2022-12-14 12:44:10,616 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5308: assume __copy_from_user_nocheck_#t~switch191#1; [2022-12-14 12:44:10,617 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5308: assume !__copy_from_user_nocheck_#t~switch191#1;__copy_from_user_nocheck_#t~switch191#1 := true; [2022-12-14 12:44:10,617 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5300: assume 0 != __copy_from_user_nocheck_~tmp___0~7#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~1#1; [2022-12-14 12:44:10,617 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5300: assume !(0 != __copy_from_user_nocheck_~tmp___0~7#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~1#1; [2022-12-14 12:44:10,617 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5321: assume __copy_from_user_nocheck_#t~switch191#1; [2022-12-14 12:44:10,617 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5321: assume !__copy_from_user_nocheck_#t~switch191#1; [2022-12-14 12:44:10,617 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5313: assume 0 != __copy_from_user_nocheck_~tmp___1~3#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~1#1; [2022-12-14 12:44:10,617 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5313: assume !(0 != __copy_from_user_nocheck_~tmp___1~3#1);__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~1#1; [2022-12-14 12:44:10,617 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5280: assume __copy_from_user_nocheck_#t~switch191#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~1#1; [2022-12-14 12:44:10,617 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5280: assume !__copy_from_user_nocheck_#t~switch191#1;__copy_from_user_nocheck_#t~switch191#1 := __copy_from_user_nocheck_#t~switch191#1 || 4 == __copy_from_user_nocheck_~size#1; [2022-12-14 12:44:10,618 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5322: SUMMARY for call __copy_from_user_nocheck_#t~ret194#1 := copy_user_generic(__copy_from_user_nocheck_~dst#1.base, __copy_from_user_nocheck_~dst#1.offset, __copy_from_user_nocheck_~src#1.base, __copy_from_user_nocheck_~src#1.offset, __copy_from_user_nocheck_~size#1); srcloc: null [2022-12-14 12:44:10,618 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5322-1: __copy_from_user_nocheck_~tmp___2~3#1 := __copy_from_user_nocheck_#t~ret194#1;havoc __copy_from_user_nocheck_#t~ret194#1;__copy_from_user_nocheck_#res#1 := (if __copy_from_user_nocheck_~tmp___2~3#1 % 18446744073709551616 % 4294967296 <= 2147483647 then __copy_from_user_nocheck_~tmp___2~3#1 % 18446744073709551616 % 4294967296 else __copy_from_user_nocheck_~tmp___2~3#1 % 18446744073709551616 % 4294967296 - 4294967296); [2022-12-14 12:44:10,618 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5285: assume __copy_from_user_nocheck_#t~switch191#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~1#1; [2022-12-14 12:44:10,618 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5285: assume !__copy_from_user_nocheck_#t~switch191#1;__copy_from_user_nocheck_#t~switch191#1 := __copy_from_user_nocheck_#t~switch191#1 || 8 == __copy_from_user_nocheck_~size#1; [2022-12-14 12:44:10,618 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5290: assume __copy_from_user_nocheck_#t~switch191#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~1#1; [2022-12-14 12:44:10,618 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5290: assume !__copy_from_user_nocheck_#t~switch191#1;__copy_from_user_nocheck_#t~switch191#1 := __copy_from_user_nocheck_#t~switch191#1 || 10 == __copy_from_user_nocheck_~size#1; [2022-12-14 12:44:10,618 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##1: assume __copy_from_user_nocheck_#t~switch191#1;__copy_from_user_nocheck_#res#1 := __copy_from_user_nocheck_~ret~1#1; [2022-12-14 12:44:10,618 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##2: assume !__copy_from_user_nocheck_#t~switch191#1;__copy_from_user_nocheck_#t~switch191#1 := __copy_from_user_nocheck_#t~switch191#1 || 2 == __copy_from_user_nocheck_~size#1; [2022-12-14 12:44:10,619 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5274: havoc __copy_from_user_nocheck_#t~switch191#1; [2022-12-14 12:44:10,619 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5299: SUMMARY for call __copy_from_user_nocheck_#t~ret192#1 := ldv__builtin_expect((if 0 != __copy_from_user_nocheck_~ret~1#1 then 1 else 0), 0); srcloc: null [2022-12-14 12:44:10,619 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5299-1: assume -9223372036854775808 <= __copy_from_user_nocheck_#t~ret192#1 && __copy_from_user_nocheck_#t~ret192#1 <= 9223372036854775807;__copy_from_user_nocheck_~tmp___0~7#1 := __copy_from_user_nocheck_#t~ret192#1;havoc __copy_from_user_nocheck_#t~ret192#1; [2022-12-14 12:44:10,619 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5295: assume __copy_from_user_nocheck_#t~switch191#1; [2022-12-14 12:44:10,619 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L5295: assume !__copy_from_user_nocheck_#t~switch191#1;__copy_from_user_nocheck_#t~switch191#1 := __copy_from_user_nocheck_#t~switch191#1 || 16 == __copy_from_user_nocheck_~size#1; [2022-12-14 12:44:13,713 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:44:15,618 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:44:15,618 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 12:44:15,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:44:15 BoogieIcfgContainer [2022-12-14 12:44:15,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:44:15,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:44:15,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:44:15,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:44:15,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:44:04" (1/3) ... [2022-12-14 12:44:15,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e3bb8d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:44:15, skipping insertion in model container [2022-12-14 12:44:15,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:06" (2/3) ... [2022-12-14 12:44:15,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e3bb8d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:44:15, skipping insertion in model container [2022-12-14 12:44:15,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:44:15" (3/3) ... [2022-12-14 12:44:15,628 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--sg.ko-entry_point.cil.out.i [2022-12-14 12:44:15,643 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:44:15,643 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 12:44:15,707 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:44:15,712 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;@5f5701d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:44:15,712 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 12:44:15,720 INFO L276 IsEmpty]: Start isEmpty. Operand has 1917 states, 1221 states have (on average 1.4021294021294022) internal successors, (1712), 1266 states have internal predecessors, (1712), 585 states have call successors, (585), 110 states have call predecessors, (585), 109 states have return successors, (568), 566 states have call predecessors, (568), 568 states have call successors, (568) [2022-12-14 12:44:15,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 629 [2022-12-14 12:44:15,748 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:44:15,749 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:44:15,749 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:44:15,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:44:15,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1501237117, now seen corresponding path program 1 times [2022-12-14 12:44:15,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:44:15,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805796176] [2022-12-14 12:44:15,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:44:15,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:44:16,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:44:17,212 INFO L134 CoverageAnalysis]: Checked inductivity of 6946 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6946 trivial. 0 not checked. [2022-12-14 12:44:17,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:44:17,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805796176] [2022-12-14 12:44:17,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805796176] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:44:17,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:44:17,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:44:17,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048874197] [2022-12-14 12:44:17,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:44:17,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:44:17,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:44:17,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:44:17,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:44:17,245 INFO L87 Difference]: Start difference. First operand has 1917 states, 1221 states have (on average 1.4021294021294022) internal successors, (1712), 1266 states have internal predecessors, (1712), 585 states have call successors, (585), 110 states have call predecessors, (585), 109 states have return successors, (568), 566 states have call predecessors, (568), 568 states have call successors, (568) Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2022-12-14 12:44:19,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:44:24,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:44:24,465 INFO L93 Difference]: Finished difference Result 5499 states and 8267 transitions. [2022-12-14 12:44:24,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:44:24,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) Word has length 628 [2022-12-14 12:44:24,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:44:24,492 INFO L225 Difference]: With dead ends: 5499 [2022-12-14 12:44:24,492 INFO L226 Difference]: Without dead ends: 3651 [2022-12-14 12:44:24,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:44:24,503 INFO L413 NwaCegarLoop]: 3055 mSDtfsCounter, 2722 mSDsluCounter, 2368 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2722 SdHoareTripleChecker+Valid, 5423 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-12-14 12:44:24,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2722 Valid, 5423 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 620 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-12-14 12:44:24,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3651 states. [2022-12-14 12:44:24,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3651 to 3647. [2022-12-14 12:44:24,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3647 states, 2362 states have (on average 1.3958509737510585) internal successors, (3297), 2413 states have internal predecessors, (3297), 1070 states have call successors, (1070), 215 states have call predecessors, (1070), 214 states have return successors, (1068), 1063 states have call predecessors, (1068), 1068 states have call successors, (1068) [2022-12-14 12:44:24,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3647 states to 3647 states and 5435 transitions. [2022-12-14 12:44:24,752 INFO L78 Accepts]: Start accepts. Automaton has 3647 states and 5435 transitions. Word has length 628 [2022-12-14 12:44:24,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:44:24,755 INFO L495 AbstractCegarLoop]: Abstraction has 3647 states and 5435 transitions. [2022-12-14 12:44:24,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2022-12-14 12:44:24,756 INFO L276 IsEmpty]: Start isEmpty. Operand 3647 states and 5435 transitions. [2022-12-14 12:44:24,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 662 [2022-12-14 12:44:24,781 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:44:24,782 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:44:24,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:44:24,783 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:44:24,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:44:24,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1549812314, now seen corresponding path program 1 times [2022-12-14 12:44:24,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:44:24,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610881652] [2022-12-14 12:44:24,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:44:24,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:44:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:44:27,134 INFO L134 CoverageAnalysis]: Checked inductivity of 6952 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6952 trivial. 0 not checked. [2022-12-14 12:44:27,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:44:27,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610881652] [2022-12-14 12:44:27,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610881652] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:44:27,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:44:27,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:44:27,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396936769] [2022-12-14 12:44:27,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:44:27,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:44:27,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:44:27,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:44:27,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:44:27,139 INFO L87 Difference]: Start difference. First operand 3647 states and 5435 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-12-14 12:44:29,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:44:35,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:44:37,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:44:39,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:44:39,161 INFO L93 Difference]: Finished difference Result 10646 states and 15912 transitions. [2022-12-14 12:44:39,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:44:39,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) Word has length 661 [2022-12-14 12:44:39,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:44:39,190 INFO L225 Difference]: With dead ends: 10646 [2022-12-14 12:44:39,190 INFO L226 Difference]: Without dead ends: 7122 [2022-12-14 12:44:39,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:44:39,202 INFO L413 NwaCegarLoop]: 2747 mSDtfsCounter, 2981 mSDsluCounter, 4605 mSDsCounter, 0 mSdLazyCounter, 2026 mSolverCounterSat, 673 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3306 SdHoareTripleChecker+Valid, 7352 SdHoareTripleChecker+Invalid, 2702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 673 IncrementalHoareTripleChecker+Valid, 2026 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-12-14 12:44:39,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3306 Valid, 7352 Invalid, 2702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [673 Valid, 2026 Invalid, 3 Unknown, 0 Unchecked, 11.6s Time] [2022-12-14 12:44:39,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7122 states. [2022-12-14 12:44:39,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7122 to 7093. [2022-12-14 12:44:39,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7093 states, 4613 states have (on average 1.402774766962931) internal successors, (6471), 4717 states have internal predecessors, (6471), 2060 states have call successors, (2060), 420 states have call predecessors, (2060), 419 states have return successors, (2094), 2045 states have call predecessors, (2094), 2058 states have call successors, (2094) [2022-12-14 12:44:39,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7093 states to 7093 states and 10625 transitions. [2022-12-14 12:44:39,475 INFO L78 Accepts]: Start accepts. Automaton has 7093 states and 10625 transitions. Word has length 661 [2022-12-14 12:44:39,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:44:39,476 INFO L495 AbstractCegarLoop]: Abstraction has 7093 states and 10625 transitions. [2022-12-14 12:44:39,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-12-14 12:44:39,476 INFO L276 IsEmpty]: Start isEmpty. Operand 7093 states and 10625 transitions. [2022-12-14 12:44:39,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 663 [2022-12-14 12:44:39,482 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:44:39,482 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:44:39,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 12:44:39,482 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:44:39,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:44:39,483 INFO L85 PathProgramCache]: Analyzing trace with hash -982522613, now seen corresponding path program 1 times [2022-12-14 12:44:39,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:44:39,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725269186] [2022-12-14 12:44:39,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:44:39,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:44:39,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:44:41,240 INFO L134 CoverageAnalysis]: Checked inductivity of 6952 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6952 trivial. 0 not checked. [2022-12-14 12:44:41,240 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:44:41,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725269186] [2022-12-14 12:44:41,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725269186] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:44:41,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:44:41,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:44:41,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297392924] [2022-12-14 12:44:41,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:44:41,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:44:41,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:44:41,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:44:41,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:44:41,244 INFO L87 Difference]: Start difference. First operand 7093 states and 10625 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-12-14 12:44:43,280 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 [] [2022-12-14 12:44:48,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:44:52,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:44:54,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:44:54,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:44:54,866 INFO L93 Difference]: Finished difference Result 14588 states and 21740 transitions. [2022-12-14 12:44:54,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:44:54,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) Word has length 662 [2022-12-14 12:44:54,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:44:54,895 INFO L225 Difference]: With dead ends: 14588 [2022-12-14 12:44:54,895 INFO L226 Difference]: Without dead ends: 7618 [2022-12-14 12:44:54,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:44:54,914 INFO L413 NwaCegarLoop]: 2692 mSDtfsCounter, 3007 mSDsluCounter, 4543 mSDsCounter, 0 mSdLazyCounter, 2004 mSolverCounterSat, 668 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3330 SdHoareTripleChecker+Valid, 7235 SdHoareTripleChecker+Invalid, 2674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 2004 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2022-12-14 12:44:54,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3330 Valid, 7235 Invalid, 2674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [668 Valid, 2004 Invalid, 2 Unknown, 0 Unchecked, 13.3s Time] [2022-12-14 12:44:54,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7618 states. [2022-12-14 12:44:55,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7618 to 7585. [2022-12-14 12:44:55,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7585 states, 4919 states have (on average 1.3956088635901607) internal successors, (6865), 5027 states have internal predecessors, (6865), 2182 states have call successors, (2182), 484 states have call predecessors, (2182), 483 states have return successors, (2210), 2167 states have call predecessors, (2210), 2180 states have call successors, (2210) [2022-12-14 12:44:55,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7585 states to 7585 states and 11257 transitions. [2022-12-14 12:44:55,199 INFO L78 Accepts]: Start accepts. Automaton has 7585 states and 11257 transitions. Word has length 662 [2022-12-14 12:44:55,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:44:55,200 INFO L495 AbstractCegarLoop]: Abstraction has 7585 states and 11257 transitions. [2022-12-14 12:44:55,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-12-14 12:44:55,201 INFO L276 IsEmpty]: Start isEmpty. Operand 7585 states and 11257 transitions. [2022-12-14 12:44:55,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 661 [2022-12-14 12:44:55,206 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:44:55,206 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:44:55,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 12:44:55,206 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:44:55,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:44:55,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1051624450, now seen corresponding path program 1 times [2022-12-14 12:44:55,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:44:55,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949055990] [2022-12-14 12:44:55,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:44:55,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:44:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:44:56,589 INFO L134 CoverageAnalysis]: Checked inductivity of 6952 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6952 trivial. 0 not checked. [2022-12-14 12:44:56,589 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:44:56,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949055990] [2022-12-14 12:44:56,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949055990] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:44:56,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:44:56,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:44:56,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64159931] [2022-12-14 12:44:56,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:44:56,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:44:56,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:44:56,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:44:56,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:44:56,593 INFO L87 Difference]: Start difference. First operand 7585 states and 11257 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-12-14 12:44:57,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:44:59,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:45:01,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:45:08,824 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:45:10,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:45:10,915 INFO L93 Difference]: Finished difference Result 15535 states and 22954 transitions. [2022-12-14 12:45:10,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:45:10,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) Word has length 660 [2022-12-14 12:45:10,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:45:10,953 INFO L225 Difference]: With dead ends: 15535 [2022-12-14 12:45:10,953 INFO L226 Difference]: Without dead ends: 8073 [2022-12-14 12:45:10,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:45:10,982 INFO L413 NwaCegarLoop]: 2684 mSDtfsCounter, 3170 mSDsluCounter, 4242 mSDsCounter, 0 mSdLazyCounter, 2107 mSolverCounterSat, 668 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3495 SdHoareTripleChecker+Valid, 6926 SdHoareTripleChecker+Invalid, 2778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 2107 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2022-12-14 12:45:10,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3495 Valid, 6926 Invalid, 2778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [668 Valid, 2107 Invalid, 3 Unknown, 0 Unchecked, 13.9s Time] [2022-12-14 12:45:10,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8073 states. [2022-12-14 12:45:11,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8073 to 7598. [2022-12-14 12:45:11,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7598 states, 4926 states have (on average 1.3948436865611042) internal successors, (6871), 5034 states have internal predecessors, (6871), 2182 states have call successors, (2182), 490 states have call predecessors, (2182), 489 states have return successors, (2208), 2167 states have call predecessors, (2208), 2180 states have call successors, (2208) [2022-12-14 12:45:11,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7598 states to 7598 states and 11261 transitions. [2022-12-14 12:45:11,456 INFO L78 Accepts]: Start accepts. Automaton has 7598 states and 11261 transitions. Word has length 660 [2022-12-14 12:45:11,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:45:11,457 INFO L495 AbstractCegarLoop]: Abstraction has 7598 states and 11261 transitions. [2022-12-14 12:45:11,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-12-14 12:45:11,458 INFO L276 IsEmpty]: Start isEmpty. Operand 7598 states and 11261 transitions. [2022-12-14 12:45:11,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 660 [2022-12-14 12:45:11,467 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:45:11,467 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:45:11,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 12:45:11,467 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:45:11,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:45:11,467 INFO L85 PathProgramCache]: Analyzing trace with hash -262594435, now seen corresponding path program 1 times [2022-12-14 12:45:11,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:45:11,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177684245] [2022-12-14 12:45:11,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:45:11,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:45:11,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:45:12,951 INFO L134 CoverageAnalysis]: Checked inductivity of 6952 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6952 trivial. 0 not checked. [2022-12-14 12:45:12,951 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:45:12,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177684245] [2022-12-14 12:45:12,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177684245] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:45:12,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:45:12,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:45:12,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089099604] [2022-12-14 12:45:12,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:45:12,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:45:12,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:45:12,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:45:12,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:45:12,955 INFO L87 Difference]: Start difference. First operand 7598 states and 11261 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-12-14 12:45:14,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:45:20,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:45:21,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:45:23,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:45:24,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:45:26,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:45:30,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:45:30,075 INFO L93 Difference]: Finished difference Result 15085 states and 22352 transitions. [2022-12-14 12:45:30,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:45:30,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) Word has length 659 [2022-12-14 12:45:30,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:45:30,102 INFO L225 Difference]: With dead ends: 15085 [2022-12-14 12:45:30,102 INFO L226 Difference]: Without dead ends: 7623 [2022-12-14 12:45:30,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:45:30,129 INFO L413 NwaCegarLoop]: 2688 mSDtfsCounter, 1995 mSDsluCounter, 4893 mSDsCounter, 0 mSdLazyCounter, 2826 mSolverCounterSat, 338 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2318 SdHoareTripleChecker+Valid, 7581 SdHoareTripleChecker+Invalid, 3166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 2826 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2022-12-14 12:45:30,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2318 Valid, 7581 Invalid, 3166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 2826 Invalid, 2 Unknown, 0 Unchecked, 16.8s Time] [2022-12-14 12:45:30,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7623 states. [2022-12-14 12:45:30,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7623 to 7594. [2022-12-14 12:45:30,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7594 states, 4924 states have (on average 1.3945978878960195) internal successors, (6867), 5032 states have internal predecessors, (6867), 2180 states have call successors, (2180), 490 states have call predecessors, (2180), 489 states have return successors, (2204), 2165 states have call predecessors, (2204), 2178 states have call successors, (2204) [2022-12-14 12:45:30,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7594 states to 7594 states and 11251 transitions. [2022-12-14 12:45:30,541 INFO L78 Accepts]: Start accepts. Automaton has 7594 states and 11251 transitions. Word has length 659 [2022-12-14 12:45:30,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:45:30,542 INFO L495 AbstractCegarLoop]: Abstraction has 7594 states and 11251 transitions. [2022-12-14 12:45:30,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 2 states have call successors, (72), 2 states have call predecessors, (72), 1 states have return successors, (69), 2 states have call predecessors, (69), 2 states have call successors, (69) [2022-12-14 12:45:30,542 INFO L276 IsEmpty]: Start isEmpty. Operand 7594 states and 11251 transitions. [2022-12-14 12:45:30,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2022-12-14 12:45:30,548 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:45:30,548 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:45:30,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 12:45:30,549 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:45:30,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:45:30,549 INFO L85 PathProgramCache]: Analyzing trace with hash 317786496, now seen corresponding path program 1 times [2022-12-14 12:45:30,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:45:30,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779100836] [2022-12-14 12:45:30,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:45:30,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:45:30,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:45:32,069 INFO L134 CoverageAnalysis]: Checked inductivity of 6997 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6988 trivial. 0 not checked. [2022-12-14 12:45:32,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:45:32,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779100836] [2022-12-14 12:45:32,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779100836] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:45:32,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807424260] [2022-12-14 12:45:32,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:45:32,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:45:32,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:45:32,071 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:45:32,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 12:45:33,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:45:33,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 8887 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 12:45:33,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:45:33,888 INFO L134 CoverageAnalysis]: Checked inductivity of 6997 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 6964 trivial. 0 not checked. [2022-12-14 12:45:33,888 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:45:33,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807424260] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:45:33,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 12:45:33,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2022-12-14 12:45:33,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636269912] [2022-12-14 12:45:33,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:45:33,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 12:45:33,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:45:33,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 12:45:33,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-12-14 12:45:33,890 INFO L87 Difference]: Start difference. First operand 7594 states and 11251 transitions. Second operand has 7 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 4 states have call successors, (82), 5 states have call predecessors, (82), 2 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2022-12-14 12:45:36,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:45:39,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:45:41,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:45:43,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:45:49,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:45:52,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:45:55,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:45:57,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:45:59,426 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:46:00,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:46:02,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:46:02,386 INFO L93 Difference]: Finished difference Result 14994 states and 22287 transitions. [2022-12-14 12:46:02,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 12:46:02,387 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 4 states have call successors, (82), 5 states have call predecessors, (82), 2 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) Word has length 701 [2022-12-14 12:46:02,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:46:02,412 INFO L225 Difference]: With dead ends: 14994 [2022-12-14 12:46:02,413 INFO L226 Difference]: Without dead ends: 7536 [2022-12-14 12:46:02,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 709 GetRequests, 699 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-12-14 12:46:02,428 INFO L413 NwaCegarLoop]: 2495 mSDtfsCounter, 30 mSDsluCounter, 12345 mSDsCounter, 0 mSdLazyCounter, 1985 mSolverCounterSat, 13 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 14840 SdHoareTripleChecker+Invalid, 2003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1985 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:46:02,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 14840 Invalid, 2003 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13 Valid, 1985 Invalid, 5 Unknown, 0 Unchecked, 28.1s Time] [2022-12-14 12:46:02,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7536 states. [2022-12-14 12:46:02,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7536 to 7536. [2022-12-14 12:46:02,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7536 states, 4894 states have (on average 1.3939517776869637) internal successors, (6822), 4992 states have internal predecessors, (6822), 2156 states have call successors, (2156), 486 states have call predecessors, (2156), 485 states have return successors, (2174), 2145 states have call predecessors, (2174), 2154 states have call successors, (2174) [2022-12-14 12:46:02,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7536 states to 7536 states and 11152 transitions. [2022-12-14 12:46:02,687 INFO L78 Accepts]: Start accepts. Automaton has 7536 states and 11152 transitions. Word has length 701 [2022-12-14 12:46:02,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:46:02,687 INFO L495 AbstractCegarLoop]: Abstraction has 7536 states and 11152 transitions. [2022-12-14 12:46:02,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.333333333333332) internal successors, (122), 5 states have internal predecessors, (122), 4 states have call successors, (82), 5 states have call predecessors, (82), 2 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2022-12-14 12:46:02,688 INFO L276 IsEmpty]: Start isEmpty. Operand 7536 states and 11152 transitions. [2022-12-14 12:46:02,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 784 [2022-12-14 12:46:02,697 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:46:02,698 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:46:02,718 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 12:46:02,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:46:02,899 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:46:02,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:46:02,899 INFO L85 PathProgramCache]: Analyzing trace with hash 848426829, now seen corresponding path program 1 times [2022-12-14 12:46:02,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:46:02,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943187515] [2022-12-14 12:46:02,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:46:02,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:46:03,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:46:03,635 INFO L134 CoverageAnalysis]: Checked inductivity of 6993 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6989 trivial. 0 not checked. [2022-12-14 12:46:03,636 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:46:03,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943187515] [2022-12-14 12:46:03,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943187515] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:46:03,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:46:03,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:46:03,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423000721] [2022-12-14 12:46:03,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:46:03,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:46:03,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:46:03,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:46:03,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:46:03,639 INFO L87 Difference]: Start difference. First operand 7536 states and 11152 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (92), 2 states have call predecessors, (92), 1 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) [2022-12-14 12:46:05,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:46:09,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:46:10,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:46:10,978 INFO L93 Difference]: Finished difference Result 18094 states and 26650 transitions. [2022-12-14 12:46:10,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:46:10,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (92), 2 states have call predecessors, (92), 1 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) Word has length 783 [2022-12-14 12:46:10,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:46:11,011 INFO L225 Difference]: With dead ends: 18094 [2022-12-14 12:46:11,011 INFO L226 Difference]: Without dead ends: 10694 [2022-12-14 12:46:11,022 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:46:11,022 INFO L413 NwaCegarLoop]: 2727 mSDtfsCounter, 1169 mSDsluCounter, 2471 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 5198 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:46:11,023 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1169 Valid, 5198 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 656 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-12-14 12:46:11,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10694 states. [2022-12-14 12:46:11,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10694 to 10686. [2022-12-14 12:46:11,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10686 states, 7008 states have (on average 1.3999714611872147) internal successors, (9811), 7150 states have internal predecessors, (9811), 2918 states have call successors, (2918), 760 states have call predecessors, (2918), 759 states have return successors, (2952), 2903 states have call predecessors, (2952), 2916 states have call successors, (2952) [2022-12-14 12:46:11,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10686 states to 10686 states and 15681 transitions. [2022-12-14 12:46:11,367 INFO L78 Accepts]: Start accepts. Automaton has 10686 states and 15681 transitions. Word has length 783 [2022-12-14 12:46:11,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:46:11,367 INFO L495 AbstractCegarLoop]: Abstraction has 10686 states and 15681 transitions. [2022-12-14 12:46:11,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 2 states have call successors, (92), 2 states have call predecessors, (92), 1 states have return successors, (89), 2 states have call predecessors, (89), 2 states have call successors, (89) [2022-12-14 12:46:11,368 INFO L276 IsEmpty]: Start isEmpty. Operand 10686 states and 15681 transitions. [2022-12-14 12:46:11,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 761 [2022-12-14 12:46:11,374 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:46:11,374 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:46:11,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 12:46:11,374 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:46:11,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:46:11,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1300160576, now seen corresponding path program 1 times [2022-12-14 12:46:11,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:46:11,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526290074] [2022-12-14 12:46:11,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:46:11,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:46:11,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:46:12,024 INFO L134 CoverageAnalysis]: Checked inductivity of 6993 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6989 trivial. 0 not checked. [2022-12-14 12:46:12,024 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:46:12,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526290074] [2022-12-14 12:46:12,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526290074] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:46:12,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:46:12,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:46:12,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532938271] [2022-12-14 12:46:12,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:46:12,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:46:12,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:46:12,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:46:12,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:46:12,027 INFO L87 Difference]: Start difference. First operand 10686 states and 15681 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 2 states have call successors, (88), 2 states have call predecessors, (88), 1 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) [2022-12-14 12:46:13,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:46:17,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:46:18,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:46:20,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:46:22,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:46:24,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:46:25,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:46:25,046 INFO L93 Difference]: Finished difference Result 30938 states and 45399 transitions. [2022-12-14 12:46:25,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:46:25,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 2 states have call successors, (88), 2 states have call predecessors, (88), 1 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) Word has length 760 [2022-12-14 12:46:25,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:46:25,093 INFO L225 Difference]: With dead ends: 30938 [2022-12-14 12:46:25,093 INFO L226 Difference]: Without dead ends: 20388 [2022-12-14 12:46:25,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:46:25,140 INFO L413 NwaCegarLoop]: 3780 mSDtfsCounter, 2635 mSDsluCounter, 2323 mSDsCounter, 0 mSdLazyCounter, 763 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2635 SdHoareTripleChecker+Valid, 6103 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2022-12-14 12:46:25,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2635 Valid, 6103 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 763 Invalid, 0 Unknown, 0 Unchecked, 12.5s Time] [2022-12-14 12:46:25,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20388 states. [2022-12-14 12:46:25,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20388 to 20356. [2022-12-14 12:46:25,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20356 states, 13454 states have (on average 1.4059015906050245) internal successors, (18915), 13726 states have internal predecessors, (18915), 5446 states have call successors, (5446), 1456 states have call predecessors, (5446), 1455 states have return successors, (5512), 5413 states have call predecessors, (5512), 5444 states have call successors, (5512) [2022-12-14 12:46:25,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20356 states to 20356 states and 29873 transitions. [2022-12-14 12:46:25,836 INFO L78 Accepts]: Start accepts. Automaton has 20356 states and 29873 transitions. Word has length 760 [2022-12-14 12:46:25,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:46:25,836 INFO L495 AbstractCegarLoop]: Abstraction has 20356 states and 29873 transitions. [2022-12-14 12:46:25,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 2 states have call successors, (88), 2 states have call predecessors, (88), 1 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) [2022-12-14 12:46:25,837 INFO L276 IsEmpty]: Start isEmpty. Operand 20356 states and 29873 transitions. [2022-12-14 12:46:25,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 752 [2022-12-14 12:46:25,842 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:46:25,842 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:46:25,843 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 12:46:25,843 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:46:25,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:46:25,843 INFO L85 PathProgramCache]: Analyzing trace with hash 581358618, now seen corresponding path program 1 times [2022-12-14 12:46:25,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:46:25,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269460172] [2022-12-14 12:46:25,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:46:25,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:46:26,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:46:27,520 INFO L134 CoverageAnalysis]: Checked inductivity of 7005 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7001 trivial. 0 not checked. [2022-12-14 12:46:27,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:46:27,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269460172] [2022-12-14 12:46:27,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269460172] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:46:27,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:46:27,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:46:27,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84270017] [2022-12-14 12:46:27,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:46:27,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:46:27,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:46:27,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:46:27,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:46:27,523 INFO L87 Difference]: Start difference. First operand 20356 states and 29873 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2022-12-14 12:46:29,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:46:35,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:46:36,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:46:40,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:46:42,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:46:42,284 INFO L93 Difference]: Finished difference Result 40561 states and 59513 transitions. [2022-12-14 12:46:42,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:46:42,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) Word has length 751 [2022-12-14 12:46:42,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:46:42,324 INFO L225 Difference]: With dead ends: 40561 [2022-12-14 12:46:42,325 INFO L226 Difference]: Without dead ends: 20341 [2022-12-14 12:46:42,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:46:42,351 INFO L413 NwaCegarLoop]: 2164 mSDtfsCounter, 3370 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 2379 mSolverCounterSat, 334 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3703 SdHoareTripleChecker+Valid, 3107 SdHoareTripleChecker+Invalid, 2715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 334 IncrementalHoareTripleChecker+Valid, 2379 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-12-14 12:46:42,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3703 Valid, 3107 Invalid, 2715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [334 Valid, 2379 Invalid, 2 Unknown, 0 Unchecked, 13.8s Time] [2022-12-14 12:46:42,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20341 states. [2022-12-14 12:46:43,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20341 to 20324. [2022-12-14 12:46:43,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20324 states, 13438 states have (on average 1.4051942253311505) internal successors, (18883), 13710 states have internal predecessors, (18883), 5430 states have call successors, (5430), 1456 states have call predecessors, (5430), 1455 states have return successors, (5488), 5397 states have call predecessors, (5488), 5428 states have call successors, (5488) [2022-12-14 12:46:43,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20324 states to 20324 states and 29801 transitions. [2022-12-14 12:46:43,112 INFO L78 Accepts]: Start accepts. Automaton has 20324 states and 29801 transitions. Word has length 751 [2022-12-14 12:46:43,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:46:43,113 INFO L495 AbstractCegarLoop]: Abstraction has 20324 states and 29801 transitions. [2022-12-14 12:46:43,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2022-12-14 12:46:43,113 INFO L276 IsEmpty]: Start isEmpty. Operand 20324 states and 29801 transitions. [2022-12-14 12:46:43,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 754 [2022-12-14 12:46:43,119 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:46:43,119 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:46:43,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 12:46:43,119 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:46:43,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:46:43,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1798568170, now seen corresponding path program 1 times [2022-12-14 12:46:43,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:46:43,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495134574] [2022-12-14 12:46:43,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:46:43,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:46:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:46:44,845 INFO L134 CoverageAnalysis]: Checked inductivity of 7005 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7001 trivial. 0 not checked. [2022-12-14 12:46:44,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:46:44,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495134574] [2022-12-14 12:46:44,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495134574] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:46:44,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:46:44,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:46:44,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540456638] [2022-12-14 12:46:44,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:46:44,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:46:44,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:46:44,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:46:44,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:46:44,847 INFO L87 Difference]: Start difference. First operand 20324 states and 29801 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2022-12-14 12:46:46,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:46:52,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:46:54,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:46:55,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:46:56,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:46:58,218 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 [] [2022-12-14 12:46:59,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:46:59,840 INFO L93 Difference]: Finished difference Result 40497 states and 59369 transitions. [2022-12-14 12:46:59,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:46:59,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) Word has length 753 [2022-12-14 12:46:59,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:46:59,883 INFO L225 Difference]: With dead ends: 40497 [2022-12-14 12:46:59,883 INFO L226 Difference]: Without dead ends: 20309 [2022-12-14 12:46:59,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:46:59,914 INFO L413 NwaCegarLoop]: 2161 mSDtfsCounter, 3362 mSDsluCounter, 943 mSDsCounter, 0 mSdLazyCounter, 2377 mSolverCounterSat, 333 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3694 SdHoareTripleChecker+Valid, 3104 SdHoareTripleChecker+Invalid, 2711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 2377 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-12-14 12:46:59,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3694 Valid, 3104 Invalid, 2711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 2377 Invalid, 1 Unknown, 0 Unchecked, 14.1s Time] [2022-12-14 12:46:59,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20309 states. [2022-12-14 12:47:00,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20309 to 20292. [2022-12-14 12:47:00,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20292 states, 13422 states have (on average 1.4044851735955892) internal successors, (18851), 13694 states have internal predecessors, (18851), 5414 states have call successors, (5414), 1456 states have call predecessors, (5414), 1455 states have return successors, (5464), 5381 states have call predecessors, (5464), 5412 states have call successors, (5464) [2022-12-14 12:47:00,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20292 states to 20292 states and 29729 transitions. [2022-12-14 12:47:00,751 INFO L78 Accepts]: Start accepts. Automaton has 20292 states and 29729 transitions. Word has length 753 [2022-12-14 12:47:00,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:47:00,752 INFO L495 AbstractCegarLoop]: Abstraction has 20292 states and 29729 transitions. [2022-12-14 12:47:00,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2022-12-14 12:47:00,752 INFO L276 IsEmpty]: Start isEmpty. Operand 20292 states and 29729 transitions. [2022-12-14 12:47:00,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 753 [2022-12-14 12:47:00,757 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:47:00,757 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:47:00,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 12:47:00,758 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:47:00,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:47:00,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1693669212, now seen corresponding path program 1 times [2022-12-14 12:47:00,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:47:00,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205737096] [2022-12-14 12:47:00,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:47:00,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:47:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:47:02,228 INFO L134 CoverageAnalysis]: Checked inductivity of 7005 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7001 trivial. 0 not checked. [2022-12-14 12:47:02,228 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:47:02,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205737096] [2022-12-14 12:47:02,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205737096] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:47:02,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:47:02,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:47:02,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640259208] [2022-12-14 12:47:02,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:47:02,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:47:02,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:47:02,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:47:02,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:47:02,231 INFO L87 Difference]: Start difference. First operand 20292 states and 29729 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2022-12-14 12:47:04,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:47:10,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:47:12,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:47:13,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:47:15,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:47:17,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:47:17,096 INFO L93 Difference]: Finished difference Result 40433 states and 59225 transitions. [2022-12-14 12:47:17,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:47:17,097 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) Word has length 752 [2022-12-14 12:47:17,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:47:17,138 INFO L225 Difference]: With dead ends: 40433 [2022-12-14 12:47:17,138 INFO L226 Difference]: Without dead ends: 20277 [2022-12-14 12:47:17,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:47:17,169 INFO L413 NwaCegarLoop]: 2158 mSDtfsCounter, 1956 mSDsluCounter, 1315 mSDsCounter, 0 mSdLazyCounter, 2385 mSolverCounterSat, 332 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2287 SdHoareTripleChecker+Valid, 3473 SdHoareTripleChecker+Invalid, 2719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 2385 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-12-14 12:47:17,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2287 Valid, 3473 Invalid, 2719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 2385 Invalid, 2 Unknown, 0 Unchecked, 13.8s Time] [2022-12-14 12:47:17,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20277 states. [2022-12-14 12:47:18,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20277 to 20260. [2022-12-14 12:47:18,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20260 states, 13406 states have (on average 1.403774429359988) internal successors, (18819), 13678 states have internal predecessors, (18819), 5398 states have call successors, (5398), 1456 states have call predecessors, (5398), 1455 states have return successors, (5440), 5365 states have call predecessors, (5440), 5396 states have call successors, (5440) [2022-12-14 12:47:18,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20260 states to 20260 states and 29657 transitions. [2022-12-14 12:47:18,088 INFO L78 Accepts]: Start accepts. Automaton has 20260 states and 29657 transitions. Word has length 752 [2022-12-14 12:47:18,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:47:18,089 INFO L495 AbstractCegarLoop]: Abstraction has 20260 states and 29657 transitions. [2022-12-14 12:47:18,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2022-12-14 12:47:18,089 INFO L276 IsEmpty]: Start isEmpty. Operand 20260 states and 29657 transitions. [2022-12-14 12:47:18,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 753 [2022-12-14 12:47:18,095 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:47:18,095 INFO L195 NwaCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 26, 26, 26, 26, 26, 26, 26, 26, 26, 7, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:47:18,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 12:47:18,095 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:47:18,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:47:18,096 INFO L85 PathProgramCache]: Analyzing trace with hash -732464312, now seen corresponding path program 1 times [2022-12-14 12:47:18,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:47:18,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917231231] [2022-12-14 12:47:18,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:47:18,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:47:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:47:19,579 INFO L134 CoverageAnalysis]: Checked inductivity of 7005 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7001 trivial. 0 not checked. [2022-12-14 12:47:19,580 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:47:19,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917231231] [2022-12-14 12:47:19,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917231231] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:47:19,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:47:19,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:47:19,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980870740] [2022-12-14 12:47:19,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:47:19,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:47:19,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:47:19,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:47:19,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:47:19,583 INFO L87 Difference]: Start difference. First operand 20260 states and 29657 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2022-12-14 12:47:21,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:47:27,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:47:29,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:47:31,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:47:32,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:47:34,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:47:36,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:47:36,553 INFO L93 Difference]: Finished difference Result 39985 states and 58581 transitions. [2022-12-14 12:47:36,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:47:36,555 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) Word has length 752 [2022-12-14 12:47:36,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:47:36,594 INFO L225 Difference]: With dead ends: 39985 [2022-12-14 12:47:36,594 INFO L226 Difference]: Without dead ends: 19861 [2022-12-14 12:47:36,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:47:36,649 INFO L413 NwaCegarLoop]: 2149 mSDtfsCounter, 1986 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 2364 mSolverCounterSat, 331 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2316 SdHoareTripleChecker+Valid, 3274 SdHoareTripleChecker+Invalid, 2698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 331 IncrementalHoareTripleChecker+Valid, 2364 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-12-14 12:47:36,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2316 Valid, 3274 Invalid, 2698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [331 Valid, 2364 Invalid, 3 Unknown, 0 Unchecked, 15.9s Time] [2022-12-14 12:47:36,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19861 states. [2022-12-14 12:47:37,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19861 to 19844. [2022-12-14 12:47:37,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19844 states, 13164 states have (on average 1.4061835308416895) internal successors, (18511), 13428 states have internal predecessors, (18511), 5276 states have call successors, (5276), 1404 states have call predecessors, (5276), 1403 states have return successors, (5298), 5245 states have call predecessors, (5298), 5274 states have call successors, (5298) [2022-12-14 12:47:37,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19844 states to 19844 states and 29085 transitions. [2022-12-14 12:47:37,609 INFO L78 Accepts]: Start accepts. Automaton has 19844 states and 29085 transitions. Word has length 752 [2022-12-14 12:47:37,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:47:37,609 INFO L495 AbstractCegarLoop]: Abstraction has 19844 states and 29085 transitions. [2022-12-14 12:47:37,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (84), 2 states have call predecessors, (84), 2 states have call successors, (84) [2022-12-14 12:47:37,610 INFO L276 IsEmpty]: Start isEmpty. Operand 19844 states and 29085 transitions. [2022-12-14 12:47:37,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1014 [2022-12-14 12:47:37,628 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:47:37,628 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 44, 44, 44, 44, 44, 44, 33, 33, 33, 33, 33, 33, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:47:37,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 12:47:37,629 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:47:37,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:47:37,629 INFO L85 PathProgramCache]: Analyzing trace with hash 661649855, now seen corresponding path program 1 times [2022-12-14 12:47:37,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:47:37,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359089260] [2022-12-14 12:47:37,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:47:37,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:47:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:47:38,995 INFO L134 CoverageAnalysis]: Checked inductivity of 13213 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13205 trivial. 0 not checked. [2022-12-14 12:47:38,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:47:38,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359089260] [2022-12-14 12:47:38,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359089260] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:47:38,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:47:38,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 12:47:38,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070271596] [2022-12-14 12:47:38,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:47:38,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:47:38,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:47:38,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:47:38,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:47:38,997 INFO L87 Difference]: Start difference. First operand 19844 states and 29085 transitions. Second operand has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 2 states have call successors, (110), 2 states have call predecessors, (110), 3 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) [2022-12-14 12:47:41,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:47:45,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:47:47,201 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:47:48,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:47:50,589 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 [] [2022-12-14 12:47:51,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:47:51,601 INFO L93 Difference]: Finished difference Result 39600 states and 58096 transitions. [2022-12-14 12:47:51,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 12:47:51,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 2 states have call successors, (110), 2 states have call predecessors, (110), 3 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) Word has length 1013 [2022-12-14 12:47:51,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:47:51,641 INFO L225 Difference]: With dead ends: 39600 [2022-12-14 12:47:51,641 INFO L226 Difference]: Without dead ends: 19860 [2022-12-14 12:47:51,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 12:47:51,671 INFO L413 NwaCegarLoop]: 2484 mSDtfsCounter, 0 mSDsluCounter, 4953 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7437 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-12-14 12:47:51,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7437 Invalid, 938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 934 Invalid, 2 Unknown, 0 Unchecked, 11.6s Time] [2022-12-14 12:47:51,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19860 states. [2022-12-14 12:47:52,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19860 to 19844. [2022-12-14 12:47:52,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19844 states, 13164 states have (on average 1.4049680948040109) internal successors, (18495), 13428 states have internal predecessors, (18495), 5276 states have call successors, (5276), 1404 states have call predecessors, (5276), 1403 states have return successors, (5298), 5245 states have call predecessors, (5298), 5274 states have call successors, (5298) [2022-12-14 12:47:52,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19844 states to 19844 states and 29069 transitions. [2022-12-14 12:47:52,665 INFO L78 Accepts]: Start accepts. Automaton has 19844 states and 29069 transitions. Word has length 1013 [2022-12-14 12:47:52,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:47:52,666 INFO L495 AbstractCegarLoop]: Abstraction has 19844 states and 29069 transitions. [2022-12-14 12:47:52,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.5) internal successors, (194), 4 states have internal predecessors, (194), 2 states have call successors, (110), 2 states have call predecessors, (110), 3 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) [2022-12-14 12:47:52,666 INFO L276 IsEmpty]: Start isEmpty. Operand 19844 states and 29069 transitions. [2022-12-14 12:47:52,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1017 [2022-12-14 12:47:52,684 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:47:52,684 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 44, 44, 44, 44, 44, 44, 33, 33, 33, 33, 33, 33, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:47:52,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 12:47:52,685 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:47:52,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:47:52,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1068173922, now seen corresponding path program 1 times [2022-12-14 12:47:52,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:47:52,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748776002] [2022-12-14 12:47:52,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:47:52,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:47:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:47:54,212 INFO L134 CoverageAnalysis]: Checked inductivity of 13213 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13205 trivial. 0 not checked. [2022-12-14 12:47:54,212 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:47:54,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748776002] [2022-12-14 12:47:54,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748776002] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:47:54,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:47:54,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:47:54,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924079701] [2022-12-14 12:47:54,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:47:54,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:47:54,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:47:54,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:47:54,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:47:54,215 INFO L87 Difference]: Start difference. First operand 19844 states and 29069 transitions. Second operand has 5 states, 5 states have (on average 39.4) internal successors, (197), 5 states have internal predecessors, (197), 2 states have call successors, (110), 2 states have call predecessors, (110), 3 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) [2022-12-14 12:47:56,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:48:00,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:48:01,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:48:02,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:48:03,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:48:05,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:48:06,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:48:08,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:48:08,703 INFO L93 Difference]: Finished difference Result 39600 states and 58064 transitions. [2022-12-14 12:48:08,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:48:08,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 5 states have internal predecessors, (197), 2 states have call successors, (110), 2 states have call predecessors, (110), 3 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) Word has length 1016 [2022-12-14 12:48:08,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:48:08,743 INFO L225 Difference]: With dead ends: 39600 [2022-12-14 12:48:08,743 INFO L226 Difference]: Without dead ends: 19860 [2022-12-14 12:48:08,769 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 [2022-12-14 12:48:08,770 INFO L413 NwaCegarLoop]: 2479 mSDtfsCounter, 14 mSDsluCounter, 7408 mSDsCounter, 0 mSdLazyCounter, 1259 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 9887 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1259 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-12-14 12:48:08,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 9887 Invalid, 1262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1259 Invalid, 1 Unknown, 0 Unchecked, 13.5s Time] [2022-12-14 12:48:08,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19860 states. [2022-12-14 12:48:09,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19860 to 19844. [2022-12-14 12:48:09,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19844 states, 13164 states have (on average 1.4037526587663325) internal successors, (18479), 13428 states have internal predecessors, (18479), 5276 states have call successors, (5276), 1404 states have call predecessors, (5276), 1403 states have return successors, (5298), 5245 states have call predecessors, (5298), 5274 states have call successors, (5298) [2022-12-14 12:48:09,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19844 states to 19844 states and 29053 transitions. [2022-12-14 12:48:09,752 INFO L78 Accepts]: Start accepts. Automaton has 19844 states and 29053 transitions. Word has length 1016 [2022-12-14 12:48:09,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:48:09,753 INFO L495 AbstractCegarLoop]: Abstraction has 19844 states and 29053 transitions. [2022-12-14 12:48:09,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.4) internal successors, (197), 5 states have internal predecessors, (197), 2 states have call successors, (110), 2 states have call predecessors, (110), 3 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) [2022-12-14 12:48:09,753 INFO L276 IsEmpty]: Start isEmpty. Operand 19844 states and 29053 transitions. [2022-12-14 12:48:09,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1016 [2022-12-14 12:48:09,771 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:48:09,771 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 44, 44, 44, 44, 44, 44, 33, 33, 33, 33, 33, 33, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:48:09,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 12:48:09,771 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:48:09,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:48:09,772 INFO L85 PathProgramCache]: Analyzing trace with hash -914102268, now seen corresponding path program 1 times [2022-12-14 12:48:09,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:48:09,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123280286] [2022-12-14 12:48:09,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:48:09,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:48:10,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:48:11,259 INFO L134 CoverageAnalysis]: Checked inductivity of 13213 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13205 trivial. 0 not checked. [2022-12-14 12:48:11,259 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:48:11,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123280286] [2022-12-14 12:48:11,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123280286] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:48:11,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:48:11,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 12:48:11,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047766558] [2022-12-14 12:48:11,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:48:11,260 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:48:11,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:48:11,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:48:11,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 12:48:11,261 INFO L87 Difference]: Start difference. First operand 19844 states and 29053 transitions. Second operand has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 2 states have call successors, (110), 2 states have call predecessors, (110), 3 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) [2022-12-14 12:48:13,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:48:17,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:48:18,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:48:19,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:48:21,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:48:23,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:48:23,097 INFO L93 Difference]: Finished difference Result 39600 states and 58032 transitions. [2022-12-14 12:48:23,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:48:23,098 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 2 states have call successors, (110), 2 states have call predecessors, (110), 3 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) Word has length 1015 [2022-12-14 12:48:23,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:48:23,134 INFO L225 Difference]: With dead ends: 39600 [2022-12-14 12:48:23,134 INFO L226 Difference]: Without dead ends: 19860 [2022-12-14 12:48:23,160 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 [2022-12-14 12:48:23,161 INFO L413 NwaCegarLoop]: 2478 mSDtfsCounter, 12 mSDsluCounter, 4935 mSDsCounter, 0 mSdLazyCounter, 943 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 7413 SdHoareTripleChecker+Invalid, 946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 943 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2022-12-14 12:48:23,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 7413 Invalid, 946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 943 Invalid, 1 Unknown, 0 Unchecked, 10.8s Time] [2022-12-14 12:48:23,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19860 states. [2022-12-14 12:48:24,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19860 to 19844. [2022-12-14 12:48:24,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19844 states, 13164 states have (on average 1.4025372227286539) internal successors, (18463), 13428 states have internal predecessors, (18463), 5276 states have call successors, (5276), 1404 states have call predecessors, (5276), 1403 states have return successors, (5298), 5245 states have call predecessors, (5298), 5274 states have call successors, (5298) [2022-12-14 12:48:24,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19844 states to 19844 states and 29037 transitions. [2022-12-14 12:48:24,136 INFO L78 Accepts]: Start accepts. Automaton has 19844 states and 29037 transitions. Word has length 1015 [2022-12-14 12:48:24,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:48:24,136 INFO L495 AbstractCegarLoop]: Abstraction has 19844 states and 29037 transitions. [2022-12-14 12:48:24,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 2 states have call successors, (110), 2 states have call predecessors, (110), 3 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) [2022-12-14 12:48:24,137 INFO L276 IsEmpty]: Start isEmpty. Operand 19844 states and 29037 transitions. [2022-12-14 12:48:24,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 992 [2022-12-14 12:48:24,153 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:48:24,153 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 44, 44, 44, 44, 44, 44, 33, 33, 33, 33, 33, 33, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:48:24,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 12:48:24,154 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:48:24,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:48:24,154 INFO L85 PathProgramCache]: Analyzing trace with hash -250085990, now seen corresponding path program 1 times [2022-12-14 12:48:24,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:48:24,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726693729] [2022-12-14 12:48:24,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:48:24,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:48:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:48:28,806 INFO L134 CoverageAnalysis]: Checked inductivity of 13213 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 13192 trivial. 0 not checked. [2022-12-14 12:48:28,806 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:48:28,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726693729] [2022-12-14 12:48:28,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726693729] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:48:28,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233166994] [2022-12-14 12:48:28,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:48:28,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:48:28,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:48:28,808 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:48:28,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 12:48:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:48:30,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 10602 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 12:48:30,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:48:30,629 INFO L134 CoverageAnalysis]: Checked inductivity of 13213 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13205 trivial. 0 not checked. [2022-12-14 12:48:30,629 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:48:30,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233166994] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:48:30,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 12:48:30,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-12-14 12:48:30,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123111262] [2022-12-14 12:48:30,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:48:30,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:48:30,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:48:30,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:48:30,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-14 12:48:30,632 INFO L87 Difference]: Start difference. First operand 19844 states and 29037 transitions. Second operand has 5 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 2 states have call successors, (106), 2 states have call predecessors, (106), 3 states have return successors, (103), 3 states have call predecessors, (103), 2 states have call successors, (103) [2022-12-14 12:48:32,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:48:39,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:48:41,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:48:43,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:48:45,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:48:47,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:48:49,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:48:49,555 INFO L93 Difference]: Finished difference Result 50648 states and 76194 transitions. [2022-12-14 12:48:49,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:48:49,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 2 states have call successors, (106), 2 states have call predecessors, (106), 3 states have return successors, (103), 3 states have call predecessors, (103), 2 states have call successors, (103) Word has length 991 [2022-12-14 12:48:49,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:48:49,617 INFO L225 Difference]: With dead ends: 50648 [2022-12-14 12:48:49,617 INFO L226 Difference]: Without dead ends: 30940 [2022-12-14 12:48:49,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1008 GetRequests, 999 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-12-14 12:48:49,647 INFO L413 NwaCegarLoop]: 3815 mSDtfsCounter, 1065 mSDsluCounter, 10334 mSDsCounter, 0 mSdLazyCounter, 1509 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 14149 SdHoareTripleChecker+Invalid, 1513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1509 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2022-12-14 12:48:49,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 14149 Invalid, 1513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1509 Invalid, 4 Unknown, 0 Unchecked, 17.4s Time] [2022-12-14 12:48:49,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30940 states. [2022-12-14 12:48:50,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30940 to 19608. [2022-12-14 12:48:50,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19608 states, 13048 states have (on average 1.404429797670141) internal successors, (18325), 13308 states have internal predecessors, (18325), 5180 states have call successors, (5180), 1380 states have call predecessors, (5180), 1379 states have return successors, (5194), 5151 states have call predecessors, (5194), 5178 states have call successors, (5194) [2022-12-14 12:48:50,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19608 states to 19608 states and 28699 transitions. [2022-12-14 12:48:50,963 INFO L78 Accepts]: Start accepts. Automaton has 19608 states and 28699 transitions. Word has length 991 [2022-12-14 12:48:50,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:48:50,964 INFO L495 AbstractCegarLoop]: Abstraction has 19608 states and 28699 transitions. [2022-12-14 12:48:50,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 2 states have call successors, (106), 2 states have call predecessors, (106), 3 states have return successors, (103), 3 states have call predecessors, (103), 2 states have call successors, (103) [2022-12-14 12:48:50,964 INFO L276 IsEmpty]: Start isEmpty. Operand 19608 states and 28699 transitions. [2022-12-14 12:48:50,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1017 [2022-12-14 12:48:50,980 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:48:50,981 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 44, 44, 44, 44, 44, 44, 33, 33, 33, 33, 33, 33, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:48:51,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 12:48:51,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:48:51,183 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:48:51,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:48:51,184 INFO L85 PathProgramCache]: Analyzing trace with hash 907898554, now seen corresponding path program 1 times [2022-12-14 12:48:51,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:48:51,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353514147] [2022-12-14 12:48:51,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:48:51,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:48:51,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:48:55,697 INFO L134 CoverageAnalysis]: Checked inductivity of 13213 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 13192 trivial. 0 not checked. [2022-12-14 12:48:55,697 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:48:55,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353514147] [2022-12-14 12:48:55,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353514147] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:48:55,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800087654] [2022-12-14 12:48:55,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:48:55,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:48:55,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:48:55,699 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:48:55,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 12:48:57,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:48:57,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 10784 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-14 12:48:57,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:48:57,697 INFO L134 CoverageAnalysis]: Checked inductivity of 13213 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 13174 trivial. 0 not checked. [2022-12-14 12:48:57,697 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:48:57,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800087654] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:48:57,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 12:48:57,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2022-12-14 12:48:57,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972465075] [2022-12-14 12:48:57,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:48:57,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 12:48:57,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:48:57,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 12:48:57,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-12-14 12:48:57,699 INFO L87 Difference]: Start difference. First operand 19608 states and 28699 transitions. Second operand has 7 states, 6 states have (on average 34.166666666666664) internal successors, (205), 7 states have internal predecessors, (205), 5 states have call successors, (113), 2 states have call predecessors, (113), 5 states have return successors, (110), 6 states have call predecessors, (110), 5 states have call successors, (110) [2022-12-14 12:48:59,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:49:06,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:49:09,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:49:11,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:49:13,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:49:16,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:49:18,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:49:19,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:49:19,607 INFO L93 Difference]: Finished difference Result 29356 states and 42998 transitions. [2022-12-14 12:49:19,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 12:49:19,608 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 34.166666666666664) internal successors, (205), 7 states have internal predecessors, (205), 5 states have call successors, (113), 2 states have call predecessors, (113), 5 states have return successors, (110), 6 states have call predecessors, (110), 5 states have call successors, (110) Word has length 1016 [2022-12-14 12:49:19,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:49:19,649 INFO L225 Difference]: With dead ends: 29356 [2022-12-14 12:49:19,649 INFO L226 Difference]: Without dead ends: 19560 [2022-12-14 12:49:19,663 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1035 GetRequests, 1022 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-12-14 12:49:19,664 INFO L413 NwaCegarLoop]: 2455 mSDtfsCounter, 8 mSDsluCounter, 12208 mSDsCounter, 0 mSdLazyCounter, 1901 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 14663 SdHoareTripleChecker+Invalid, 1908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1901 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2022-12-14 12:49:19,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 14663 Invalid, 1908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1901 Invalid, 3 Unknown, 0 Unchecked, 20.8s Time] [2022-12-14 12:49:19,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19560 states. [2022-12-14 12:49:20,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19560 to 19560. [2022-12-14 12:49:20,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19560 states, 13030 states have (on average 1.4046815042210283) internal successors, (18303), 13294 states have internal predecessors, (18303), 5156 states have call successors, (5156), 1366 states have call predecessors, (5156), 1373 states have return successors, (5174), 5131 states have call predecessors, (5174), 5154 states have call successors, (5174) [2022-12-14 12:49:20,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19560 states to 19560 states and 28633 transitions. [2022-12-14 12:49:20,751 INFO L78 Accepts]: Start accepts. Automaton has 19560 states and 28633 transitions. Word has length 1016 [2022-12-14 12:49:20,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:49:20,752 INFO L495 AbstractCegarLoop]: Abstraction has 19560 states and 28633 transitions. [2022-12-14 12:49:20,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 34.166666666666664) internal successors, (205), 7 states have internal predecessors, (205), 5 states have call successors, (113), 2 states have call predecessors, (113), 5 states have return successors, (110), 6 states have call predecessors, (110), 5 states have call successors, (110) [2022-12-14 12:49:20,752 INFO L276 IsEmpty]: Start isEmpty. Operand 19560 states and 28633 transitions. [2022-12-14 12:49:20,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 988 [2022-12-14 12:49:20,769 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:49:20,769 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 44, 44, 44, 44, 44, 44, 33, 33, 33, 33, 33, 33, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:49:20,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 12:49:20,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-14 12:49:20,971 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:49:20,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:49:20,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1969345862, now seen corresponding path program 1 times [2022-12-14 12:49:20,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:49:20,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435990349] [2022-12-14 12:49:20,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:49:20,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:49:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:49:22,010 INFO L134 CoverageAnalysis]: Checked inductivity of 13213 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 13199 trivial. 0 not checked. [2022-12-14 12:49:22,010 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:49:22,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435990349] [2022-12-14 12:49:22,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435990349] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:49:22,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:49:22,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:49:22,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965674637] [2022-12-14 12:49:22,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:49:22,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:49:22,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:49:22,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:49:22,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:49:22,012 INFO L87 Difference]: Start difference. First operand 19560 states and 28633 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 3 states have call successors, (104), 2 states have call predecessors, (104), 1 states have return successors, (101), 3 states have call predecessors, (101), 3 states have call successors, (101) [2022-12-14 12:49:24,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:49:27,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:49:30,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:49:32,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:49:33,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:49:33,214 INFO L93 Difference]: Finished difference Result 48512 states and 70585 transitions. [2022-12-14 12:49:33,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:49:33,215 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 3 states have call successors, (104), 2 states have call predecessors, (104), 1 states have return successors, (101), 3 states have call predecessors, (101), 3 states have call successors, (101) Word has length 987 [2022-12-14 12:49:33,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:49:33,280 INFO L225 Difference]: With dead ends: 48512 [2022-12-14 12:49:33,280 INFO L226 Difference]: Without dead ends: 28928 [2022-12-14 12:49:33,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:49:33,309 INFO L413 NwaCegarLoop]: 3436 mSDtfsCounter, 1870 mSDsluCounter, 2154 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 24 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1870 SdHoareTripleChecker+Valid, 5590 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-12-14 12:49:33,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1870 Valid, 5590 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 759 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time] [2022-12-14 12:49:33,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28928 states. [2022-12-14 12:49:35,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28928 to 28920. [2022-12-14 12:49:35,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28920 states, 19362 states have (on average 1.399080673484144) internal successors, (27089), 19718 states have internal predecessors, (27089), 7368 states have call successors, (7368), 2182 states have call predecessors, (7368), 2189 states have return successors, (7386), 7339 states have call predecessors, (7386), 7366 states have call successors, (7386) [2022-12-14 12:49:35,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28920 states to 28920 states and 41843 transitions. [2022-12-14 12:49:35,136 INFO L78 Accepts]: Start accepts. Automaton has 28920 states and 41843 transitions. Word has length 987 [2022-12-14 12:49:35,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:49:35,137 INFO L495 AbstractCegarLoop]: Abstraction has 28920 states and 41843 transitions. [2022-12-14 12:49:35,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 3 states have call successors, (104), 2 states have call predecessors, (104), 1 states have return successors, (101), 3 states have call predecessors, (101), 3 states have call successors, (101) [2022-12-14 12:49:35,137 INFO L276 IsEmpty]: Start isEmpty. Operand 28920 states and 41843 transitions. [2022-12-14 12:49:35,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1002 [2022-12-14 12:49:35,157 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:49:35,158 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 44, 44, 44, 44, 44, 44, 33, 33, 33, 33, 33, 33, 6, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:49:35,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 12:49:35,158 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:49:35,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:49:35,158 INFO L85 PathProgramCache]: Analyzing trace with hash 1706474691, now seen corresponding path program 1 times [2022-12-14 12:49:35,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:49:35,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376663979] [2022-12-14 12:49:35,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:49:35,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:49:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:49:37,789 INFO L134 CoverageAnalysis]: Checked inductivity of 13237 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 13213 trivial. 0 not checked. [2022-12-14 12:49:37,789 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:49:37,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376663979] [2022-12-14 12:49:37,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376663979] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:49:37,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [659473923] [2022-12-14 12:49:37,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:49:37,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:49:37,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:49:37,791 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:49:37,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 12:49:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:49:40,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 10595 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 12:49:40,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:49:40,450 INFO L134 CoverageAnalysis]: Checked inductivity of 13237 backedges. 4696 proven. 0 refuted. 0 times theorem prover too weak. 8541 trivial. 0 not checked. [2022-12-14 12:49:40,450 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:49:40,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [659473923] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:49:40,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 12:49:40,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-12-14 12:49:40,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097974631] [2022-12-14 12:49:40,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:49:40,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:49:40,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:49:40,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:49:40,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-12-14 12:49:40,452 INFO L87 Difference]: Start difference. First operand 28920 states and 41843 transitions. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 2 states have call successors, (106), 2 states have call predecessors, (106), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2022-12-14 12:49:42,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:49:44,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:49:46,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:49:49,397 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:49:51,406 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:49:53,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:49:54,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:49:55,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:49:57,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:50:00,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:50:00,290 INFO L93 Difference]: Finished difference Result 57788 states and 83613 transitions. [2022-12-14 12:50:00,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 12:50:00,290 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 2 states have call successors, (106), 2 states have call predecessors, (106), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) Word has length 1001 [2022-12-14 12:50:00,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:50:00,383 INFO L225 Difference]: With dead ends: 57788 [2022-12-14 12:50:00,383 INFO L226 Difference]: Without dead ends: 28956 [2022-12-14 12:50:00,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1009 GetRequests, 1002 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-12-14 12:50:00,448 INFO L413 NwaCegarLoop]: 2458 mSDtfsCounter, 14 mSDsluCounter, 4913 mSDsCounter, 0 mSdLazyCounter, 918 mSolverCounterSat, 5 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 7371 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 918 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.9s IncrementalHoareTripleChecker+Time [2022-12-14 12:50:00,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 7371 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 918 Invalid, 4 Unknown, 0 Unchecked, 17.9s Time] [2022-12-14 12:50:00,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28956 states. [2022-12-14 12:50:02,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28956 to 28639. [2022-12-14 12:50:02,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28639 states, 19185 states have (on average 1.3997393797237425) internal successors, (26854), 19525 states have internal predecessors, (26854), 7304 states have call successors, (7304), 2142 states have call predecessors, (7304), 2149 states have return successors, (7322), 7267 states have call predecessors, (7322), 7302 states have call successors, (7322) [2022-12-14 12:50:02,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28639 states to 28639 states and 41480 transitions. [2022-12-14 12:50:02,156 INFO L78 Accepts]: Start accepts. Automaton has 28639 states and 41480 transitions. Word has length 1001 [2022-12-14 12:50:02,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:50:02,157 INFO L495 AbstractCegarLoop]: Abstraction has 28639 states and 41480 transitions. [2022-12-14 12:50:02,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 2 states have call successors, (106), 2 states have call predecessors, (106), 2 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2022-12-14 12:50:02,157 INFO L276 IsEmpty]: Start isEmpty. Operand 28639 states and 41480 transitions. [2022-12-14 12:50:02,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1025 [2022-12-14 12:50:02,178 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:50:02,178 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 44, 44, 44, 44, 44, 44, 33, 33, 33, 33, 33, 33, 6, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:50:02,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 12:50:02,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:50:02,380 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:50:02,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:50:02,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1521593134, now seen corresponding path program 1 times [2022-12-14 12:50:02,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:50:02,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740293767] [2022-12-14 12:50:02,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:50:02,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:50:02,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:50:04,628 INFO L134 CoverageAnalysis]: Checked inductivity of 13237 backedges. 20 proven. 4 refuted. 0 times theorem prover too weak. 13213 trivial. 0 not checked. [2022-12-14 12:50:04,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:50:04,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740293767] [2022-12-14 12:50:04,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740293767] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:50:04,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552291035] [2022-12-14 12:50:04,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:50:04,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:50:04,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:50:04,630 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:50:04,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 12:50:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:50:07,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 10725 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 12:50:07,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:50:07,148 INFO L134 CoverageAnalysis]: Checked inductivity of 13237 backedges. 4696 proven. 0 refuted. 0 times theorem prover too weak. 8541 trivial. 0 not checked. [2022-12-14 12:50:07,148 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:50:07,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552291035] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:50:07,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 12:50:07,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2022-12-14 12:50:07,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143727568] [2022-12-14 12:50:07,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:50:07,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:50:07,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:50:07,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:50:07,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-12-14 12:50:07,151 INFO L87 Difference]: Start difference. First operand 28639 states and 41480 transitions. Second operand has 5 states, 5 states have (on average 40.2) internal successors, (201), 5 states have internal predecessors, (201), 3 states have call successors, (111), 2 states have call predecessors, (111), 2 states have return successors, (108), 3 states have call predecessors, (108), 3 states have call successors, (108) [2022-12-14 12:50:09,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:50:11,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:50:12,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:50:14,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:50:18,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:50:19,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:50:20,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:50:22,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:50:24,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:50:27,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:50:27,031 INFO L93 Difference]: Finished difference Result 57183 states and 82818 transitions. [2022-12-14 12:50:27,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:50:27,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.2) internal successors, (201), 5 states have internal predecessors, (201), 3 states have call successors, (111), 2 states have call predecessors, (111), 2 states have return successors, (108), 3 states have call predecessors, (108), 3 states have call successors, (108) Word has length 1024 [2022-12-14 12:50:27,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:50:27,109 INFO L225 Difference]: With dead ends: 57183 [2022-12-14 12:50:27,109 INFO L226 Difference]: Without dead ends: 28652 [2022-12-14 12:50:27,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1033 GetRequests, 1024 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-12-14 12:50:27,167 INFO L413 NwaCegarLoop]: 2460 mSDtfsCounter, 20 mSDsluCounter, 7370 mSDsCounter, 0 mSdLazyCounter, 1227 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 9830 SdHoareTripleChecker+Invalid, 1235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1227 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2022-12-14 12:50:27,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 9830 Invalid, 1235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1227 Invalid, 3 Unknown, 0 Unchecked, 18.3s Time] [2022-12-14 12:50:27,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28652 states. [2022-12-14 12:50:28,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28652 to 28632. [2022-12-14 12:50:28,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28632 states, 19182 states have (on average 1.399176311125013) internal successors, (26839), 19517 states have internal predecessors, (26839), 7304 states have call successors, (7304), 2138 states have call predecessors, (7304), 2145 states have return successors, (7322), 7264 states have call predecessors, (7322), 7302 states have call successors, (7322) [2022-12-14 12:50:28,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28632 states to 28632 states and 41465 transitions. [2022-12-14 12:50:28,715 INFO L78 Accepts]: Start accepts. Automaton has 28632 states and 41465 transitions. Word has length 1024 [2022-12-14 12:50:28,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:50:28,715 INFO L495 AbstractCegarLoop]: Abstraction has 28632 states and 41465 transitions. [2022-12-14 12:50:28,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.2) internal successors, (201), 5 states have internal predecessors, (201), 3 states have call successors, (111), 2 states have call predecessors, (111), 2 states have return successors, (108), 3 states have call predecessors, (108), 3 states have call successors, (108) [2022-12-14 12:50:28,715 INFO L276 IsEmpty]: Start isEmpty. Operand 28632 states and 41465 transitions. [2022-12-14 12:50:28,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1026 [2022-12-14 12:50:28,735 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:50:28,736 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 44, 44, 44, 44, 44, 44, 33, 33, 33, 33, 33, 33, 6, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:50:28,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 12:50:28,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:50:28,938 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:50:28,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:50:28,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1544438500, now seen corresponding path program 1 times [2022-12-14 12:50:28,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:50:28,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502738391] [2022-12-14 12:50:28,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:50:28,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:50:29,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:50:32,845 INFO L134 CoverageAnalysis]: Checked inductivity of 13237 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 13206 trivial. 0 not checked. [2022-12-14 12:50:32,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:50:32,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502738391] [2022-12-14 12:50:32,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502738391] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:50:32,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478288708] [2022-12-14 12:50:32,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:50:32,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:50:32,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:50:32,847 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:50:32,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 12:50:34,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:50:34,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 10734 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 12:50:35,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:50:35,641 INFO L134 CoverageAnalysis]: Checked inductivity of 13237 backedges. 4704 proven. 0 refuted. 0 times theorem prover too weak. 8533 trivial. 0 not checked. [2022-12-14 12:50:35,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:50:35,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478288708] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:50:35,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 12:50:35,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2022-12-14 12:50:35,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935385172] [2022-12-14 12:50:35,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:50:35,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 12:50:35,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:50:35,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 12:50:35,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-14 12:50:35,644 INFO L87 Difference]: Start difference. First operand 28632 states and 41465 transitions. Second operand has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 3 states have call successors, (111), 3 states have call predecessors, (111), 3 states have return successors, (108), 3 states have call predecessors, (108), 3 states have call successors, (108) [2022-12-14 12:50:37,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:50:42,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:50:43,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:50:49,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:50:50,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:50:52,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:50:52,493 INFO L93 Difference]: Finished difference Result 66520 states and 97009 transitions. [2022-12-14 12:50:52,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 12:50:52,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 3 states have call successors, (111), 3 states have call predecessors, (111), 3 states have return successors, (108), 3 states have call predecessors, (108), 3 states have call successors, (108) Word has length 1025 [2022-12-14 12:50:52,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:50:52,584 INFO L225 Difference]: With dead ends: 66520 [2022-12-14 12:50:52,585 INFO L226 Difference]: Without dead ends: 37904 [2022-12-14 12:50:52,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1040 GetRequests, 1033 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-14 12:50:52,637 INFO L413 NwaCegarLoop]: 3950 mSDtfsCounter, 2431 mSDsluCounter, 4748 mSDsCounter, 0 mSdLazyCounter, 2213 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2574 SdHoareTripleChecker+Valid, 8698 SdHoareTripleChecker+Invalid, 2263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 2213 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2022-12-14 12:50:52,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2574 Valid, 8698 Invalid, 2263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 2213 Invalid, 1 Unknown, 0 Unchecked, 14.5s Time] [2022-12-14 12:50:52,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37904 states. [2022-12-14 12:50:54,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37904 to 33792. [2022-12-14 12:50:54,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33792 states, 22834 states have (on average 1.405666987825173) internal successors, (32097), 23225 states have internal predecessors, (32097), 8424 states have call successors, (8424), 2526 states have call predecessors, (8424), 2533 states have return successors, (8442), 8380 states have call predecessors, (8442), 8422 states have call successors, (8442) [2022-12-14 12:50:54,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33792 states to 33792 states and 48963 transitions. [2022-12-14 12:50:54,562 INFO L78 Accepts]: Start accepts. Automaton has 33792 states and 48963 transitions. Word has length 1025 [2022-12-14 12:50:54,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:50:54,563 INFO L495 AbstractCegarLoop]: Abstraction has 33792 states and 48963 transitions. [2022-12-14 12:50:54,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.25) internal successors, (205), 4 states have internal predecessors, (205), 3 states have call successors, (111), 3 states have call predecessors, (111), 3 states have return successors, (108), 3 states have call predecessors, (108), 3 states have call successors, (108) [2022-12-14 12:50:54,563 INFO L276 IsEmpty]: Start isEmpty. Operand 33792 states and 48963 transitions. [2022-12-14 12:50:54,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1085 [2022-12-14 12:50:54,586 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:50:54,586 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 44, 44, 44, 44, 44, 44, 33, 33, 33, 33, 33, 33, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:50:54,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 12:50:54,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:50:54,788 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:50:54,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:50:54,790 INFO L85 PathProgramCache]: Analyzing trace with hash 743270848, now seen corresponding path program 1 times [2022-12-14 12:50:54,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:50:54,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060020366] [2022-12-14 12:50:54,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:50:54,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:50:55,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:50:55,995 INFO L134 CoverageAnalysis]: Checked inductivity of 13284 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 13264 trivial. 0 not checked. [2022-12-14 12:50:55,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:50:55,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060020366] [2022-12-14 12:50:55,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060020366] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:50:55,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:50:55,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 12:50:55,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367276191] [2022-12-14 12:50:55,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:50:55,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:50:55,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:50:55,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:50:55,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:50:55,999 INFO L87 Difference]: Start difference. First operand 33792 states and 48963 transitions. Second operand has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 3 states have call successors, (123), 2 states have call predecessors, (123), 1 states have return successors, (122), 2 states have call predecessors, (122), 2 states have call successors, (122) [2022-12-14 12:50:58,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:51:00,634 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 [] [2022-12-14 12:51:03,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:51:03,608 INFO L93 Difference]: Finished difference Result 67287 states and 97431 transitions. [2022-12-14 12:51:03,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:51:03,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 3 states have call successors, (123), 2 states have call predecessors, (123), 1 states have return successors, (122), 2 states have call predecessors, (122), 2 states have call successors, (122) Word has length 1084 [2022-12-14 12:51:03,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:51:03,675 INFO L225 Difference]: With dead ends: 67287 [2022-12-14 12:51:03,675 INFO L226 Difference]: Without dead ends: 32523 [2022-12-14 12:51:03,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:51:03,721 INFO L413 NwaCegarLoop]: 3117 mSDtfsCounter, 2427 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2427 SdHoareTripleChecker+Valid, 3986 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-12-14 12:51:03,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2427 Valid, 3986 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 477 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-12-14 12:51:03,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32523 states. [2022-12-14 12:51:05,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32523 to 32476. [2022-12-14 12:51:05,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32476 states, 21978 states have (on average 1.404040404040404) internal successors, (30858), 22330 states have internal predecessors, (30858), 8028 states have call successors, (8028), 2462 states have call predecessors, (8028), 2469 states have return successors, (8046), 8014 states have call predecessors, (8046), 8026 states have call successors, (8046) [2022-12-14 12:51:05,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32476 states to 32476 states and 46932 transitions. [2022-12-14 12:51:05,585 INFO L78 Accepts]: Start accepts. Automaton has 32476 states and 46932 transitions. Word has length 1084 [2022-12-14 12:51:05,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:51:05,586 INFO L495 AbstractCegarLoop]: Abstraction has 32476 states and 46932 transitions. [2022-12-14 12:51:05,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 3 states have call successors, (123), 2 states have call predecessors, (123), 1 states have return successors, (122), 2 states have call predecessors, (122), 2 states have call successors, (122) [2022-12-14 12:51:05,586 INFO L276 IsEmpty]: Start isEmpty. Operand 32476 states and 46932 transitions. [2022-12-14 12:51:05,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1090 [2022-12-14 12:51:05,609 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:51:05,609 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 44, 44, 44, 44, 44, 44, 33, 33, 33, 33, 33, 33, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:51:05,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 12:51:05,609 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:51:05,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:51:05,610 INFO L85 PathProgramCache]: Analyzing trace with hash -366433345, now seen corresponding path program 1 times [2022-12-14 12:51:05,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:51:05,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003096373] [2022-12-14 12:51:05,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:51:05,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:51:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:51:07,534 INFO L134 CoverageAnalysis]: Checked inductivity of 13280 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 13266 trivial. 0 not checked. [2022-12-14 12:51:07,534 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:51:07,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003096373] [2022-12-14 12:51:07,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003096373] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:51:07,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932868132] [2022-12-14 12:51:07,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:51:07,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:51:07,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:51:07,536 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:51:07,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 12:51:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:51:09,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 10953 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 12:51:09,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:51:09,727 INFO L134 CoverageAnalysis]: Checked inductivity of 13280 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 13212 trivial. 0 not checked. [2022-12-14 12:51:09,728 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:51:09,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932868132] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:51:09,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 12:51:09,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2022-12-14 12:51:09,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509410731] [2022-12-14 12:51:09,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:51:09,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 12:51:09,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:51:09,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 12:51:09,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-12-14 12:51:09,731 INFO L87 Difference]: Start difference. First operand 32476 states and 46932 transitions. Second operand has 5 states, 5 states have (on average 47.2) internal successors, (236), 4 states have internal predecessors, (236), 2 states have call successors, (126), 2 states have call predecessors, (126), 3 states have return successors, (125), 3 states have call predecessors, (125), 2 states have call successors, (125) [2022-12-14 12:51:11,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:51:14,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:51:15,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:51:16,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:51:18,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:51:20,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 12:51:25,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:51:25,067 INFO L93 Difference]: Finished difference Result 64475 states and 93194 transitions. [2022-12-14 12:51:25,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 12:51:25,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 47.2) internal successors, (236), 4 states have internal predecessors, (236), 2 states have call successors, (126), 2 states have call predecessors, (126), 3 states have return successors, (125), 3 states have call predecessors, (125), 2 states have call successors, (125) Word has length 1089 [2022-12-14 12:51:25,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:51:25,147 INFO L225 Difference]: With dead ends: 64475 [2022-12-14 12:51:25,148 INFO L226 Difference]: Without dead ends: 32700 [2022-12-14 12:51:25,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1095 GetRequests, 1087 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-14 12:51:25,212 INFO L413 NwaCegarLoop]: 2457 mSDtfsCounter, 6 mSDsluCounter, 7361 mSDsCounter, 0 mSdLazyCounter, 1229 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 9818 SdHoareTripleChecker+Invalid, 1232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1229 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-12-14 12:51:25,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 9818 Invalid, 1232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1229 Invalid, 3 Unknown, 0 Unchecked, 13.5s Time] [2022-12-14 12:51:25,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32700 states. [2022-12-14 12:51:26,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32700 to 32540. [2022-12-14 12:51:27,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32540 states, 22026 states have (on average 1.403159901934078) internal successors, (30906), 22378 states have internal predecessors, (30906), 8028 states have call successors, (8028), 2462 states have call predecessors, (8028), 2485 states have return successors, (8078), 8030 states have call predecessors, (8078), 8026 states have call successors, (8078) [2022-12-14 12:51:27,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32540 states to 32540 states and 47012 transitions. [2022-12-14 12:51:27,108 INFO L78 Accepts]: Start accepts. Automaton has 32540 states and 47012 transitions. Word has length 1089 [2022-12-14 12:51:27,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:51:27,109 INFO L495 AbstractCegarLoop]: Abstraction has 32540 states and 47012 transitions. [2022-12-14 12:51:27,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.2) internal successors, (236), 4 states have internal predecessors, (236), 2 states have call successors, (126), 2 states have call predecessors, (126), 3 states have return successors, (125), 3 states have call predecessors, (125), 2 states have call successors, (125) [2022-12-14 12:51:27,109 INFO L276 IsEmpty]: Start isEmpty. Operand 32540 states and 47012 transitions. [2022-12-14 12:51:27,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1078 [2022-12-14 12:51:27,131 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:51:27,132 INFO L195 NwaCegarLoop]: trace histogram [44, 44, 44, 44, 44, 44, 44, 44, 44, 33, 33, 33, 33, 33, 33, 6, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:51:27,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 12:51:27,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-12-14 12:51:27,332 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 12:51:27,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:51:27,333 INFO L85 PathProgramCache]: Analyzing trace with hash -1315054721, now seen corresponding path program 1 times [2022-12-14 12:51:27,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:51:27,333 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354463513] [2022-12-14 12:51:27,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:51:27,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:51:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:51:31,764 INFO L134 CoverageAnalysis]: Checked inductivity of 13249 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 13218 trivial. 0 not checked. [2022-12-14 12:51:31,764 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:51:31,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354463513] [2022-12-14 12:51:31,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354463513] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 12:51:31,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104924978] [2022-12-14 12:51:31,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:51:31,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 12:51:31,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:51:31,766 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 12:51:31,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5be47f9c-f308-4434-889e-baf1ead8e460/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 12:51:34,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:51:34,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 11075 conjuncts, 51 conjunts are in the unsatisfiable core [2022-12-14 12:51:34,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:51:37,037 INFO L134 CoverageAnalysis]: Checked inductivity of 13249 backedges. 4711 proven. 16 refuted. 0 times theorem prover too weak. 8522 trivial. 0 not checked. [2022-12-14 12:51:37,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 12:51:37,826 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 14299 disjunctions. This might take some time... [2022-12-14 12:51:50,059 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 14299 disjunctions.