./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--osst.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_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/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_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/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--osst.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/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_501a9e0b-762a-4ebc-8944-dc6207736937/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 bda3098802797ffc08e15000ad078a436cf195bb22a40ea321a7ea1bbc073e29 --- 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 14:01:16,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:01:16,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:01:16,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:01:16,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:01:16,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:01:16,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:01:16,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:01:16,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:01:16,931 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:01:16,932 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:01:16,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:01:16,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:01:16,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:01:16,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:01:16,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:01:16,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:01:16,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:01:16,940 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:01:16,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:01:16,944 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:01:16,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:01:16,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:01:16,947 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:01:16,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:01:16,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:01:16,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:01:16,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:01:16,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:01:16,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:01:16,954 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:01:16,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:01:16,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:01:16,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:01:16,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:01:16,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:01:16,958 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:01:16,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:01:16,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:01:16,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:01:16,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:01:16,960 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 14:01:16,982 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:01:16,983 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:01:16,983 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:01:16,983 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:01:16,984 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:01:16,984 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:01:16,984 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:01:16,985 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:01:16,985 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:01:16,985 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:01:16,985 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:01:16,985 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:01:16,985 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:01:16,986 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:01:16,986 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:01:16,986 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:01:16,986 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:01:16,986 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:01:16,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:01:16,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:01:16,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:01:16,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:01:16,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:01:16,988 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:01:16,988 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:01:16,988 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:01:16,989 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:01:16,989 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:01:16,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:01:16,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:01:16,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:01:16,990 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:01:16,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:01:16,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:01:16,990 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:01:16,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:01:16,990 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:01:16,991 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:01:16,991 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_501a9e0b-762a-4ebc-8944-dc6207736937/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bda3098802797ffc08e15000ad078a436cf195bb22a40ea321a7ea1bbc073e29 [2022-12-14 14:01:17,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:01:17,193 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:01:17,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:01:17,197 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:01:17,197 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:01:17,198 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--osst.ko-entry_point.cil.out.i [2022-12-14 14:01:19,816 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:01:20,235 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:01:20,235 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--osst.ko-entry_point.cil.out.i [2022-12-14 14:01:20,265 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/data/7e630b851/2641a4fbb97a492991f762d3ef152d60/FLAG1ff575065 [2022-12-14 14:01:20,279 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/data/7e630b851/2641a4fbb97a492991f762d3ef152d60 [2022-12-14 14:01:20,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:01:20,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:01:20,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:01:20,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:01:20,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:01:20,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:01:20" (1/1) ... [2022-12-14 14:01:20,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41eb276d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:01:20, skipping insertion in model container [2022-12-14 14:01:20,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:01:20" (1/1) ... [2022-12-14 14:01:20,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:01:20,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:01:20,854 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 14:01:20,932 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 14:01:20,952 WARN L623 FunctionHandler]: Unknown extern function __msecs_to_jiffies [2022-12-14 14:01:20,960 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-12-14 14:01:21,004 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:01:21,097 WARN L623 FunctionHandler]: Unknown extern function __register_chrdev [2022-12-14 14:01:21,104 WARN L623 FunctionHandler]: Unknown extern function __unregister_chrdev [2022-12-14 14:01:21,181 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 14:01:21,182 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 14:01:21,183 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 14:01:21,188 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 14:01:21,188 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 14:01:21,189 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 14:01:21,338 WARN L623 FunctionHandler]: Unknown extern function scsi_normalize_sense [2022-12-14 14:01:21,339 WARN L623 FunctionHandler]: Unknown extern function scsi_get_sense_info_fld [2022-12-14 14:01:21,342 WARN L623 FunctionHandler]: Unknown extern function scsi_sense_desc_find [2022-12-14 14:01:21,349 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,349 WARN L623 FunctionHandler]: Unknown extern function __scsi_print_sense [2022-12-14 14:01:21,350 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,350 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,351 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,358 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-14 14:01:21,358 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:01:21,359 WARN L623 FunctionHandler]: Unknown extern function blk_rq_unmap_user [2022-12-14 14:01:21,359 WARN L623 FunctionHandler]: Unknown extern function __blk_put_request [2022-12-14 14:01:21,367 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:01:21,371 WARN L623 FunctionHandler]: Unknown extern function blk_get_request [2022-12-14 14:01:21,373 WARN L623 FunctionHandler]: Unknown extern function blk_rq_set_block_pc [2022-12-14 14:01:21,374 WARN L623 FunctionHandler]: Unknown extern function sg_next [2022-12-14 14:01:21,376 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_user [2022-12-14 14:01:21,376 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:01:21,377 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_kern [2022-12-14 14:01:21,378 WARN L623 FunctionHandler]: Unknown extern function blk_execute_rq_nowait [2022-12-14 14:01:21,379 WARN L623 FunctionHandler]: Unknown extern function blk_put_request [2022-12-14 14:01:21,384 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,386 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,392 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-12-14 14:01:21,398 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-12-14 14:01:21,400 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,421 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 14:01:21,421 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 14:01:21,423 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,428 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,435 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 14:01:21,435 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:01:21,436 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:01:21,445 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:01:21,464 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,466 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:01:21,472 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 14:01:21,475 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,475 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,490 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,497 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,500 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,503 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,515 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,537 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-12-14 14:01:21,538 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,540 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,540 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 14:01:21,542 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,543 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 14:01:21,546 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:01:21,547 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,548 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 14:01:21,549 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,550 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 14:01:21,557 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 14:01:21,559 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,559 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,560 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 14:01:21,560 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,564 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,565 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,567 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,568 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,568 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,577 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,578 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,594 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,595 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,597 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,599 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,615 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,621 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,627 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-12-14 14:01:21,628 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,632 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,645 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,645 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,647 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 14:01:21,648 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 14:01:21,649 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 14:01:21,650 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 14:01:21,651 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,651 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,653 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-12-14 14:01:21,653 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,656 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,657 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,657 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,658 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,658 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,658 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,659 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,659 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,660 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,660 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,661 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,661 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,662 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,662 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,663 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,671 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,690 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,691 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,692 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,693 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,696 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,697 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,698 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,705 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,708 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,709 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,713 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,726 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,746 WARN L623 FunctionHandler]: Unknown extern function scsi_set_medium_removal [2022-12-14 14:01:21,757 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-12-14 14:01:21,758 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-14 14:01:21,759 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,760 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,763 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,763 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,764 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,780 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:01:21,784 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-12-14 14:01:21,784 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-14 14:01:21,786 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,787 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,790 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:01:21,794 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,794 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,794 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,795 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,801 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,801 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,802 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,802 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,802 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,803 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,803 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,804 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,804 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,804 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,805 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,805 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,805 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,812 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,813 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,822 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-12-14 14:01:21,822 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:21,823 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:21,823 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:21,823 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:21,824 WARN L623 FunctionHandler]: Unknown extern function scsi_device_get [2022-12-14 14:01:21,824 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:21,824 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:21,824 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-14 14:01:21,825 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,826 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,830 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,833 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,835 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,836 WARN L623 FunctionHandler]: Unknown extern function scsi_device_put [2022-12-14 14:01:21,840 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:01:21,840 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:01:21,847 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,847 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,847 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,848 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,848 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,848 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,853 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-12-14 14:01:21,853 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:21,853 WARN L623 FunctionHandler]: Unknown extern function scsi_device_put [2022-12-14 14:01:21,857 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:01:21,858 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-12-14 14:01:21,858 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:01:21,858 WARN L623 FunctionHandler]: Unknown extern function scsi_ioctl_block_when_processing_errors [2022-12-14 14:01:21,859 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 14:01:21,859 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,867 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:01:21,867 WARN L623 FunctionHandler]: Unknown extern function scsi_ioctl [2022-12-14 14:01:21,867 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:01:21,867 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:01:21,868 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:01:21,876 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,876 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,877 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,878 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,879 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 14:01:21,880 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,881 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,882 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,883 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,884 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,885 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,886 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,887 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,899 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 14:01:21,900 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 14:01:21,900 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 14:01:21,910 WARN L623 FunctionHandler]: Unknown extern function driver_create_file [2022-12-14 14:01:21,914 WARN L623 FunctionHandler]: Unknown extern function driver_remove_file [2022-12-14 14:01:21,944 WARN L623 FunctionHandler]: Unknown extern function __class_create [2022-12-14 14:01:21,945 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,949 WARN L623 FunctionHandler]: Unknown extern function device_destroy [2022-12-14 14:01:21,952 WARN L623 FunctionHandler]: Unknown extern function device_create [2022-12-14 14:01:21,953 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,953 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 14:01:21,954 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 14:01:21,954 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 14:01:21,954 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 14:01:21,954 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 14:01:21,954 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 14:01:21,958 WARN L623 FunctionHandler]: Unknown extern function class_destroy [2022-12-14 14:01:21,959 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-12-14 14:01:21,959 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,960 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-12-14 14:01:21,960 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:21,960 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,961 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:21,961 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,961 WARN L623 FunctionHandler]: Unknown extern function panic [2022-12-14 14:01:21,961 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:21,962 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,962 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:21,962 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,962 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:01:21,963 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:01:21,964 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 14:01:21,964 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 14:01:21,966 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 14:01:21,966 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:21,967 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 14:01:21,967 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:01:21,967 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-14 14:01:21,968 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-12-14 14:01:21,969 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-14 14:01:21,969 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:21,969 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 14:01:21,970 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:01:21,970 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:01:21,970 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:21,974 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,974 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,975 WARN L623 FunctionHandler]: Unknown extern function scsi_register_driver [2022-12-14 14:01:21,975 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-12-14 14:01:21,979 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-12-14 14:01:21,980 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 14:01:21,980 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:01:21,981 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-14 14:01:21,981 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:01:21,981 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:01:21,981 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:21,994 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 14:01:21,996 WARN L623 FunctionHandler]: Unknown extern function noop_llseek [2022-12-14 14:01:22,003 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_501a9e0b-762a-4ebc-8944-dc6207736937/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--osst.ko-entry_point.cil.out.i[353122,353135] [2022-12-14 14:01:22,032 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:01:22,034 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:01:22,034 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:01:22,034 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:01:22,039 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:01:22,048 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:01:22,048 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:01:22,049 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:01:22,053 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:01:22,070 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:01:22,147 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 14:01:22,149 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 14:01:22,149 WARN L623 FunctionHandler]: Unknown extern function __msecs_to_jiffies [2022-12-14 14:01:22,150 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-12-14 14:01:22,151 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:01:22,154 WARN L623 FunctionHandler]: Unknown extern function __register_chrdev [2022-12-14 14:01:22,155 WARN L623 FunctionHandler]: Unknown extern function __unregister_chrdev [2022-12-14 14:01:22,156 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 14:01:22,156 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 14:01:22,157 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 14:01:22,157 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 14:01:22,157 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 14:01:22,158 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 14:01:22,162 WARN L623 FunctionHandler]: Unknown extern function scsi_normalize_sense [2022-12-14 14:01:22,162 WARN L623 FunctionHandler]: Unknown extern function scsi_get_sense_info_fld [2022-12-14 14:01:22,163 WARN L623 FunctionHandler]: Unknown extern function scsi_sense_desc_find [2022-12-14 14:01:22,165 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,165 WARN L623 FunctionHandler]: Unknown extern function __scsi_print_sense [2022-12-14 14:01:22,166 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,166 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,166 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,168 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-14 14:01:22,168 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:01:22,168 WARN L623 FunctionHandler]: Unknown extern function blk_rq_unmap_user [2022-12-14 14:01:22,169 WARN L623 FunctionHandler]: Unknown extern function __blk_put_request [2022-12-14 14:01:22,171 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:01:22,172 WARN L623 FunctionHandler]: Unknown extern function blk_get_request [2022-12-14 14:01:22,173 WARN L623 FunctionHandler]: Unknown extern function blk_rq_set_block_pc [2022-12-14 14:01:22,173 WARN L623 FunctionHandler]: Unknown extern function sg_next [2022-12-14 14:01:22,174 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_user [2022-12-14 14:01:22,176 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:01:22,176 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_kern [2022-12-14 14:01:22,180 WARN L623 FunctionHandler]: Unknown extern function blk_execute_rq_nowait [2022-12-14 14:01:22,184 WARN L623 FunctionHandler]: Unknown extern function blk_put_request [2022-12-14 14:01:22,185 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,186 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,191 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-12-14 14:01:22,191 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-12-14 14:01:22,201 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,209 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 14:01:22,210 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 14:01:22,211 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,213 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,215 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 14:01:22,215 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:01:22,216 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:01:22,218 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:01:22,222 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,223 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:01:22,225 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 14:01:22,226 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,226 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,230 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,241 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,243 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,244 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,249 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,256 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-12-14 14:01:22,256 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,258 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,258 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 14:01:22,259 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,260 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 14:01:22,262 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 14:01:22,263 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,263 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 14:01:22,264 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,265 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 14:01:22,266 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 14:01:22,268 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,268 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,268 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 14:01:22,269 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,271 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,271 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,272 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,273 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,273 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,276 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,277 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,282 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,282 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,283 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,284 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,287 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,288 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,289 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-12-14 14:01:22,289 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,291 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,293 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,293 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,294 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 14:01:22,294 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 14:01:22,295 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 14:01:22,295 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 14:01:22,296 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,296 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,297 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-12-14 14:01:22,297 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,298 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,299 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,299 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,299 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,299 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,299 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,300 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,300 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,300 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,300 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,301 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,301 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,301 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,301 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,302 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,303 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,307 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,307 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,308 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,308 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,309 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,310 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,311 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,312 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,314 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,314 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,316 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,321 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,325 WARN L623 FunctionHandler]: Unknown extern function scsi_set_medium_removal [2022-12-14 14:01:22,326 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-12-14 14:01:22,327 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-14 14:01:22,327 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,328 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,329 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,330 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,330 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,334 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:01:22,335 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-12-14 14:01:22,335 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-14 14:01:22,336 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,338 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,340 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:01:22,340 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,340 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,341 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,341 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,343 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,344 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,344 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,344 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,345 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,345 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,345 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,346 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,346 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,346 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,346 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,347 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,347 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,353 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,353 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,357 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-12-14 14:01:22,358 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:22,358 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:22,358 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:22,358 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:22,359 WARN L623 FunctionHandler]: Unknown extern function scsi_device_get [2022-12-14 14:01:22,359 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:22,359 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:22,359 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-14 14:01:22,360 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,361 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,364 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,366 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,368 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,368 WARN L623 FunctionHandler]: Unknown extern function scsi_device_put [2022-12-14 14:01:22,369 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:01:22,369 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:01:22,372 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,372 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,372 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,372 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,373 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,373 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,373 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-12-14 14:01:22,374 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:22,374 WARN L623 FunctionHandler]: Unknown extern function scsi_device_put [2022-12-14 14:01:22,374 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 14:01:22,374 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-12-14 14:01:22,375 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:01:22,375 WARN L623 FunctionHandler]: Unknown extern function scsi_ioctl_block_when_processing_errors [2022-12-14 14:01:22,376 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 14:01:22,376 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,393 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:01:22,393 WARN L623 FunctionHandler]: Unknown extern function scsi_ioctl [2022-12-14 14:01:22,393 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:01:22,393 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:01:22,393 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 14:01:22,396 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,397 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,398 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,398 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,399 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 14:01:22,400 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,401 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,401 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,402 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,403 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,404 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,405 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,405 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,408 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 14:01:22,408 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 14:01:22,409 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 14:01:22,410 WARN L623 FunctionHandler]: Unknown extern function driver_create_file [2022-12-14 14:01:22,410 WARN L623 FunctionHandler]: Unknown extern function driver_remove_file [2022-12-14 14:01:22,414 WARN L623 FunctionHandler]: Unknown extern function __class_create [2022-12-14 14:01:22,414 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,415 WARN L623 FunctionHandler]: Unknown extern function device_destroy [2022-12-14 14:01:22,415 WARN L623 FunctionHandler]: Unknown extern function device_create [2022-12-14 14:01:22,415 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,415 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 14:01:22,415 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 14:01:22,416 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 14:01:22,416 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 14:01:22,416 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 14:01:22,416 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 14:01:22,416 WARN L623 FunctionHandler]: Unknown extern function class_destroy [2022-12-14 14:01:22,417 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-12-14 14:01:22,417 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,417 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-12-14 14:01:22,418 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:22,418 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,418 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:22,418 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,418 WARN L623 FunctionHandler]: Unknown extern function panic [2022-12-14 14:01:22,419 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:22,419 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,419 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:22,419 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,419 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:01:22,419 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 14:01:22,420 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 14:01:22,420 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 14:01:22,422 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 14:01:22,422 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:22,422 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-12-14 14:01:22,423 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:01:22,423 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-14 14:01:22,423 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-12-14 14:01:22,424 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-14 14:01:22,424 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:22,424 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 14:01:22,424 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:01:22,424 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:01:22,425 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 14:01:22,425 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,425 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,425 WARN L623 FunctionHandler]: Unknown extern function scsi_register_driver [2022-12-14 14:01:22,425 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-12-14 14:01:22,426 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-12-14 14:01:22,426 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 14:01:22,426 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:01:22,427 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-14 14:01:22,427 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:01:22,427 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 14:01:22,427 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 14:01:22,429 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 14:01:22,431 WARN L623 FunctionHandler]: Unknown extern function noop_llseek [2022-12-14 14:01:22,433 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_501a9e0b-762a-4ebc-8944-dc6207736937/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--osst.ko-entry_point.cil.out.i[353122,353135] [2022-12-14 14:01:22,435 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:01:22,436 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:01:22,436 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:01:22,436 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:01:22,437 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:01:22,438 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:01:22,438 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:01:22,438 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 14:01:22,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:01:22,487 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:01:22,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:01:22 WrapperNode [2022-12-14 14:01:22,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:01:22,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:01:22,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:01:22,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:01:22,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:01:22" (1/1) ... [2022-12-14 14:01:22,555 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:01:22" (1/1) ... [2022-12-14 14:01:22,752 INFO L138 Inliner]: procedures = 247, calls = 4082, calls flagged for inlining = 104, calls inlined = 99, statements flattened = 9602 [2022-12-14 14:01:22,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:01:22,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:01:22,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:01:22,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:01:22,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:01:22" (1/1) ... [2022-12-14 14:01:22,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:01:22" (1/1) ... [2022-12-14 14:01:22,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:01:22" (1/1) ... [2022-12-14 14:01:22,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:01:22" (1/1) ... [2022-12-14 14:01:22,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:01:22" (1/1) ... [2022-12-14 14:01:23,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:01:22" (1/1) ... [2022-12-14 14:01:23,025 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:01:22" (1/1) ... [2022-12-14 14:01:23,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:01:22" (1/1) ... [2022-12-14 14:01:23,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:01:23,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:01:23,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:01:23,082 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:01:23,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:01:22" (1/1) ... [2022-12-14 14:01:23,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:01:23,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:01:23,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:01:23,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:01:23,137 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-12-14 14:01:23,137 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-12-14 14:01:23,137 INFO L130 BoogieDeclarations]: Found specification of procedure osst_log_options [2022-12-14 14:01:23,137 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_log_options [2022-12-14 14:01:23,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-12-14 14:01:23,137 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-12-14 14:01:23,137 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-12-14 14:01:23,137 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-12-14 14:01:23,138 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-12-14 14:01:23,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 14:01:23,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 14:01:23,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 14:01:23,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 14:01:23,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 14:01:23,138 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 14:01:23,138 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_behind_check [2022-12-14 14:01:23,138 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_behind_check [2022-12-14 14:01:23,138 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-12-14 14:01:23,138 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-12-14 14:01:23,138 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2022-12-14 14:01:23,138 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2022-12-14 14:01:23,138 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-12-14 14:01:23,138 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-12-14 14:01:23,138 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock [2022-12-14 14:01:23,138 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock [2022-12-14 14:01:23,138 INFO L130 BoogieDeclarations]: Found specification of procedure osst_release_request [2022-12-14 14:01:23,138 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_release_request [2022-12-14 14:01:23,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 14:01:23,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 14:01:23,138 INFO L130 BoogieDeclarations]: Found specification of procedure osst_set_frame_position [2022-12-14 14:01:23,138 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_set_frame_position [2022-12-14 14:01:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_header [2022-12-14 14:01:23,139 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_header [2022-12-14 14:01:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-12-14 14:01:23,139 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-12-14 14:01:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-14 14:01:23,139 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-14 14:01:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-14 14:01:23,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-14 14:01:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-12-14 14:01:23,139 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-12-14 14:01:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_frame [2022-12-14 14:01:23,139 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_frame [2022-12-14 14:01:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure tape_name [2022-12-14 14:01:23,139 INFO L138 BoogieDeclarations]: Found implementation of procedure tape_name [2022-12-14 14:01:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_put [2022-12-14 14:01:23,139 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_put [2022-12-14 14:01:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 14:01:23,140 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 14:01:23,140 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 14:01:23,140 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 14:01:23,140 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_write_buffer [2022-12-14 14:01:23,140 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_write_buffer [2022-12-14 14:01:23,140 INFO L130 BoogieDeclarations]: Found specification of procedure osst_initiate_read [2022-12-14 14:01:23,140 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_initiate_read [2022-12-14 14:01:23,140 INFO L130 BoogieDeclarations]: Found specification of procedure osst_seek_logical_blk [2022-12-14 14:01:23,140 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_seek_logical_blk [2022-12-14 14:01:23,140 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_trailer [2022-12-14 14:01:23,140 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_trailer [2022-12-14 14:01:23,140 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_drive_buffer [2022-12-14 14:01:23,140 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_drive_buffer [2022-12-14 14:01:23,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 14:01:23,140 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 14:01:23,140 INFO L130 BoogieDeclarations]: Found specification of procedure osst_int_ioctl [2022-12-14 14:01:23,140 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_int_ioctl [2022-12-14 14:01:23,140 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-12-14 14:01:23,140 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-12-14 14:01:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure do_door_lock [2022-12-14 14:01:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure do_door_lock [2022-12-14 14:01:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 14:01:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_to_buffer [2022-12-14 14:01:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_to_buffer [2022-12-14 14:01:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_analyze_headers [2022-12-14 14:01:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_analyze_headers [2022-12-14 14:01:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 14:01:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 14:01:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-12-14 14:01:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-12-14 14:01:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_logical_frame [2022-12-14 14:01:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_logical_frame [2022-12-14 14:01:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2022-12-14 14:01:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2022-12-14 14:01:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 14:01:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure osst_position_tape_and_confirm [2022-12-14 14:01:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_position_tape_and_confirm [2022-12-14 14:01:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 14:01:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-12-14 14:01:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-12-14 14:01:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 14:01:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 14:01:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-14 14:01:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-14 14:01:23,142 INFO L130 BoogieDeclarations]: Found specification of procedure osst_verify_frame [2022-12-14 14:01:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_verify_frame [2022-12-14 14:01:23,142 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-12-14 14:01:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-12-14 14:01:23,142 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_ready [2022-12-14 14:01:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_ready [2022-12-14 14:01:23,142 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-12-14 14:01:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-12-14 14:01:23,142 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reset_header [2022-12-14 14:01:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reset_header [2022-12-14 14:01:23,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 14:01:23,142 INFO L130 BoogieDeclarations]: Found specification of procedure osst_do_scsi [2022-12-14 14:01:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_do_scsi [2022-12-14 14:01:23,142 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-12-14 14:01:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-12-14 14:01:23,142 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-12-14 14:01:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-12-14 14:01:23,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 14:01:23,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 14:01:23,143 INFO L130 BoogieDeclarations]: Found specification of procedure osst_chk_result [2022-12-14 14:01:23,143 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_chk_result [2022-12-14 14:01:23,143 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_add [2022-12-14 14:01:23,143 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_add [2022-12-14 14:01:23,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 14:01:23,143 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 14:01:23,143 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_backward [2022-12-14 14:01:23,143 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_backward [2022-12-14 14:01:23,143 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_back_buffer_and_rewrite [2022-12-14 14:01:23,143 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_back_buffer_and_rewrite [2022-12-14 14:01:23,143 INFO L130 BoogieDeclarations]: Found specification of procedure cross_eof [2022-12-14 14:01:23,143 INFO L138 BoogieDeclarations]: Found implementation of procedure cross_eof [2022-12-14 14:01:23,143 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_cleanup [2022-12-14 14:01:23,143 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_cleanup [2022-12-14 14:01:23,143 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 14:01:23,144 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 14:01:23,144 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_buffer [2022-12-14 14:01:23,144 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_buffer [2022-12-14 14:01:23,144 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-12-14 14:01:23,144 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-12-14 14:01:23,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 14:01:23,144 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-12-14 14:01:23,144 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-12-14 14:01:23,144 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reposition_and_retry [2022-12-14 14:01:23,144 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reposition_and_retry [2022-12-14 14:01:23,144 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_filemark [2022-12-14 14:01:23,144 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_filemark [2022-12-14 14:01:23,145 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_destroy [2022-12-14 14:01:23,145 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_destroy [2022-12-14 14:01:23,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 14:01:23,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 14:01:23,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-12-14 14:01:23,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-12-14 14:01:23,145 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-12-14 14:01:23,145 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-12-14 14:01:23,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 14:01:23,145 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-12-14 14:01:23,145 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-12-14 14:01:23,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-12-14 14:01:23,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-12-14 14:01:23,145 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock [2022-12-14 14:01:23,145 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock [2022-12-14 14:01:23,145 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-12-14 14:01:23,145 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-12-14 14:01:23,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 14:01:23,145 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_write_header [2022-12-14 14:01:23,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_write_header [2022-12-14 14:01:23,145 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write [2022-12-14 14:01:23,145 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write [2022-12-14 14:01:23,145 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_frame [2022-12-14 14:01:23,146 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_frame [2022-12-14 14:01:23,146 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-12-14 14:01:23,146 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-12-14 14:01:23,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 14:01:23,146 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 14:01:23,146 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_frame_position [2022-12-14 14:01:23,146 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_frame_position [2022-12-14 14:01:23,146 INFO L130 BoogieDeclarations]: Found specification of procedure os_scsi_tape_flush [2022-12-14 14:01:23,146 INFO L138 BoogieDeclarations]: Found implementation of procedure os_scsi_tape_flush [2022-12-14 14:01:23,146 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_buffer [2022-12-14 14:01:23,146 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_buffer [2022-12-14 14:01:23,146 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_from_buffer [2022-12-14 14:01:23,146 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_from_buffer [2022-12-14 14:01:23,146 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-12-14 14:01:23,146 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-12-14 14:01:23,146 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-12-14 14:01:23,146 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-12-14 14:01:23,146 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_buffer [2022-12-14 14:01:23,146 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_buffer [2022-12-14 14:01:23,146 INFO L130 BoogieDeclarations]: Found specification of procedure osst_init_aux [2022-12-14 14:01:23,146 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_init_aux [2022-12-14 14:01:23,146 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_error_recovery [2022-12-14 14:01:23,146 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_error_recovery [2022-12-14 14:01:23,146 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_eod [2022-12-14 14:01:23,146 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_eod [2022-12-14 14:01:23,147 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-12-14 14:01:23,147 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-12-14 14:01:23,147 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_forward_slow [2022-12-14 14:01:23,147 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_forward_slow [2022-12-14 14:01:23,147 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-12-14 14:01:23,147 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-12-14 14:01:23,147 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2022-12-14 14:01:23,147 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2022-12-14 14:01:23,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_6 [2022-12-14 14:01:23,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_6 [2022-12-14 14:01:23,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 14:01:23,147 INFO L130 BoogieDeclarations]: Found specification of procedure osst_recover_wait_frame [2022-12-14 14:01:23,147 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_recover_wait_frame [2022-12-14 14:01:23,147 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_frame [2022-12-14 14:01:23,147 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_frame [2022-12-14 14:01:23,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:01:23,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:01:23,147 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-12-14 14:01:23,147 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-12-14 14:01:23,872 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:01:23,875 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:01:23,962 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 14:01:37,794 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:01:40,744 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:01:40,744 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 14:01:40,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:01:40 BoogieIcfgContainer [2022-12-14 14:01:40,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:01:40,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:01:40,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:01:40,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:01:40,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:01:20" (1/3) ... [2022-12-14 14:01:40,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468638d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:01:40, skipping insertion in model container [2022-12-14 14:01:40,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:01:22" (2/3) ... [2022-12-14 14:01:40,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468638d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:01:40, skipping insertion in model container [2022-12-14 14:01:40,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:01:40" (3/3) ... [2022-12-14 14:01:40,754 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--osst.ko-entry_point.cil.out.i [2022-12-14 14:01:40,767 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:01:40,767 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:01:40,828 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:01:40,834 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;@11c121cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:01:40,834 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:01:40,843 INFO L276 IsEmpty]: Start isEmpty. Operand has 2235 states, 1525 states have (on average 1.4131147540983606) internal successors, (2155), 1555 states have internal predecessors, (2155), 616 states have call successors, (616), 93 states have call predecessors, (616), 92 states have return successors, (605), 602 states have call predecessors, (605), 605 states have call successors, (605) [2022-12-14 14:01:40,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2022-12-14 14:01:40,868 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:01:40,868 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:01:40,869 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:01:40,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:01:40,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1258343641, now seen corresponding path program 1 times [2022-12-14 14:01:40,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:01:40,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308506901] [2022-12-14 14:01:40,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:01:40,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:01:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:01:41,804 INFO L134 CoverageAnalysis]: Checked inductivity of 3196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3196 trivial. 0 not checked. [2022-12-14 14:01:41,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:01:41,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308506901] [2022-12-14 14:01:41,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308506901] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:01:41,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:01:41,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:01:41,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86729264] [2022-12-14 14:01:41,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:01:41,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:01:41,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:01:41,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:01:41,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:01:41,838 INFO L87 Difference]: Start difference. First operand has 2235 states, 1525 states have (on average 1.4131147540983606) internal successors, (2155), 1555 states have internal predecessors, (2155), 616 states have call successors, (616), 93 states have call predecessors, (616), 92 states have return successors, (605), 602 states have call predecessors, (605), 605 states have call successors, (605) Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-12-14 14:01:43,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:01:46,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:01:48,424 WARN L539 Checker$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 14:01:50,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:01:51,988 WARN L539 Checker$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 14:01:54,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:01:57,680 WARN L539 Checker$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 14:01:59,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:01:59,478 INFO L93 Difference]: Finished difference Result 6443 states and 9836 transitions. [2022-12-14 14:01:59,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:01:59,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 401 [2022-12-14 14:01:59,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:01:59,509 INFO L225 Difference]: With dead ends: 6443 [2022-12-14 14:01:59,509 INFO L226 Difference]: Without dead ends: 4243 [2022-12-14 14:01:59,524 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 14:01:59,526 INFO L413 NwaCegarLoop]: 3550 mSDtfsCounter, 3102 mSDsluCounter, 2973 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3102 SdHoareTripleChecker+Valid, 6523 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:01:59,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3102 Valid, 6523 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 725 Invalid, 5 Unknown, 0 Unchecked, 17.3s Time] [2022-12-14 14:01:59,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4243 states. [2022-12-14 14:01:59,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4243 to 4243. [2022-12-14 14:01:59,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4243 states, 2928 states have (on average 1.4064207650273224) internal successors, (4118), 2955 states have internal predecessors, (4118), 1135 states have call successors, (1135), 180 states have call predecessors, (1135), 179 states have return successors, (1134), 1130 states have call predecessors, (1134), 1134 states have call successors, (1134) [2022-12-14 14:01:59,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4243 states to 4243 states and 6387 transitions. [2022-12-14 14:01:59,726 INFO L78 Accepts]: Start accepts. Automaton has 4243 states and 6387 transitions. Word has length 401 [2022-12-14 14:01:59,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:01:59,727 INFO L495 AbstractCegarLoop]: Abstraction has 4243 states and 6387 transitions. [2022-12-14 14:01:59,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-12-14 14:01:59,728 INFO L276 IsEmpty]: Start isEmpty. Operand 4243 states and 6387 transitions. [2022-12-14 14:01:59,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2022-12-14 14:01:59,736 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:01:59,736 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:01:59,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:01:59,736 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:01:59,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:01:59,737 INFO L85 PathProgramCache]: Analyzing trace with hash 565460880, now seen corresponding path program 1 times [2022-12-14 14:01:59,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:01:59,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497138403] [2022-12-14 14:01:59,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:01:59,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:01:59,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:02:00,289 INFO L134 CoverageAnalysis]: Checked inductivity of 3196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3196 trivial. 0 not checked. [2022-12-14 14:02:00,289 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:02:00,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497138403] [2022-12-14 14:02:00,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497138403] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:02:00,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:02:00,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:02:00,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175198698] [2022-12-14 14:02:00,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:02:00,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:02:00,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:02:00,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:02:00,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:02:00,293 INFO L87 Difference]: Start difference. First operand 4243 states and 6387 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2022-12-14 14:02:02,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:02:05,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:02:07,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:02:11,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:02:16,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:02:20,986 WARN L539 Checker$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 14:02:26,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:02:28,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:02:30,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:02:32,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:02:34,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:02:36,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:02:36,472 INFO L93 Difference]: Finished difference Result 12046 states and 18563 transitions. [2022-12-14 14:02:36,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:02:36,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 410 [2022-12-14 14:02:36,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:02:36,511 INFO L225 Difference]: With dead ends: 12046 [2022-12-14 14:02:36,512 INFO L226 Difference]: Without dead ends: 7874 [2022-12-14 14:02:36,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:02:36,533 INFO L413 NwaCegarLoop]: 4488 mSDtfsCounter, 2451 mSDsluCounter, 7876 mSDsCounter, 0 mSdLazyCounter, 1456 mSolverCounterSat, 329 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2781 SdHoareTripleChecker+Valid, 12364 SdHoareTripleChecker+Invalid, 1793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 1456 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.9s IncrementalHoareTripleChecker+Time [2022-12-14 14:02:36,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2781 Valid, 12364 Invalid, 1793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [329 Valid, 1456 Invalid, 8 Unknown, 0 Unchecked, 35.9s Time] [2022-12-14 14:02:36,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7874 states. [2022-12-14 14:02:36,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7874 to 4245. [2022-12-14 14:02:36,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4245 states, 2930 states have (on average 1.4061433447098977) internal successors, (4120), 2957 states have internal predecessors, (4120), 1135 states have call successors, (1135), 180 states have call predecessors, (1135), 179 states have return successors, (1134), 1130 states have call predecessors, (1134), 1134 states have call successors, (1134) [2022-12-14 14:02:36,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4245 states to 4245 states and 6389 transitions. [2022-12-14 14:02:36,735 INFO L78 Accepts]: Start accepts. Automaton has 4245 states and 6389 transitions. Word has length 410 [2022-12-14 14:02:36,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:02:36,736 INFO L495 AbstractCegarLoop]: Abstraction has 4245 states and 6389 transitions. [2022-12-14 14:02:36,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2022-12-14 14:02:36,736 INFO L276 IsEmpty]: Start isEmpty. Operand 4245 states and 6389 transitions. [2022-12-14 14:02:36,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2022-12-14 14:02:36,743 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:02:36,743 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:02:36,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 14:02:36,743 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:02:36,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:02:36,743 INFO L85 PathProgramCache]: Analyzing trace with hash 1747051992, now seen corresponding path program 1 times [2022-12-14 14:02:36,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:02:36,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450181198] [2022-12-14 14:02:36,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:02:36,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:02:36,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:02:37,110 INFO L134 CoverageAnalysis]: Checked inductivity of 3196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3196 trivial. 0 not checked. [2022-12-14 14:02:37,111 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:02:37,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450181198] [2022-12-14 14:02:37,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450181198] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:02:37,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:02:37,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:02:37,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154751626] [2022-12-14 14:02:37,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:02:37,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:02:37,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:02:37,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:02:37,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:02:37,112 INFO L87 Difference]: Start difference. First operand 4245 states and 6389 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-14 14:02:40,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:02:42,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:02:44,707 WARN L539 Checker$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 14:02:48,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:02:51,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:02:53,966 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 14:02:55,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:02:55,692 INFO L93 Difference]: Finished difference Result 8294 states and 12484 transitions. [2022-12-14 14:02:55,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:02:55,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 414 [2022-12-14 14:02:55,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:02:55,730 INFO L225 Difference]: With dead ends: 8294 [2022-12-14 14:02:55,730 INFO L226 Difference]: Without dead ends: 8263 [2022-12-14 14:02:55,737 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 14:02:55,738 INFO L413 NwaCegarLoop]: 3657 mSDtfsCounter, 3091 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3095 SdHoareTripleChecker+Valid, 6532 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:02:55,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3095 Valid, 6532 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 740 Invalid, 4 Unknown, 0 Unchecked, 18.4s Time] [2022-12-14 14:02:55,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8263 states. [2022-12-14 14:02:55,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8263 to 8261. [2022-12-14 14:02:56,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8261 states, 5719 states have (on average 1.408812729498164) internal successors, (8057), 5769 states have internal predecessors, (8057), 2192 states have call successors, (2192), 352 states have call predecessors, (2192), 349 states have return successors, (2191), 2182 states have call predecessors, (2191), 2191 states have call successors, (2191) [2022-12-14 14:02:56,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8261 states to 8261 states and 12440 transitions. [2022-12-14 14:02:56,035 INFO L78 Accepts]: Start accepts. Automaton has 8261 states and 12440 transitions. Word has length 414 [2022-12-14 14:02:56,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:02:56,035 INFO L495 AbstractCegarLoop]: Abstraction has 8261 states and 12440 transitions. [2022-12-14 14:02:56,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-12-14 14:02:56,036 INFO L276 IsEmpty]: Start isEmpty. Operand 8261 states and 12440 transitions. [2022-12-14 14:02:56,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2022-12-14 14:02:56,053 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:02:56,053 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:02:56,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 14:02:56,053 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:02:56,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:02:56,054 INFO L85 PathProgramCache]: Analyzing trace with hash 592396407, now seen corresponding path program 1 times [2022-12-14 14:02:56,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:02:56,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127317141] [2022-12-14 14:02:56,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:02:56,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:02:56,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:02:56,502 INFO L134 CoverageAnalysis]: Checked inductivity of 3221 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3216 trivial. 0 not checked. [2022-12-14 14:02:56,502 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:02:56,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127317141] [2022-12-14 14:02:56,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127317141] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:02:56,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:02:56,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:02:56,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502414192] [2022-12-14 14:02:56,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:02:56,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:02:56,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:02:56,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:02:56,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:02:56,504 INFO L87 Difference]: Start difference. First operand 8261 states and 12440 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-12-14 14:02:58,539 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 14:03:01,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:03:03,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:03:08,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:03:10,610 WARN L539 Checker$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 14:03:14,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:03:14,495 INFO L93 Difference]: Finished difference Result 24262 states and 36529 transitions. [2022-12-14 14:03:14,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:03:14,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 494 [2022-12-14 14:03:14,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:03:14,582 INFO L225 Difference]: With dead ends: 24262 [2022-12-14 14:03:14,582 INFO L226 Difference]: Without dead ends: 16072 [2022-12-14 14:03:14,610 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 14:03:14,611 INFO L413 NwaCegarLoop]: 3592 mSDtfsCounter, 3007 mSDsluCounter, 2968 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3007 SdHoareTripleChecker+Valid, 6560 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:03:14,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3007 Valid, 6560 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 738 Invalid, 5 Unknown, 0 Unchecked, 17.6s Time] [2022-12-14 14:03:14,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16072 states. [2022-12-14 14:03:15,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16072 to 16066. [2022-12-14 14:03:15,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16066 states, 11145 states have (on average 1.4096904441453566) internal successors, (15711), 11239 states have internal predecessors, (15711), 4237 states have call successors, (4237), 688 states have call predecessors, (4237), 683 states have return successors, (4236), 4218 states have call predecessors, (4236), 4236 states have call successors, (4236) [2022-12-14 14:03:15,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16066 states to 16066 states and 24184 transitions. [2022-12-14 14:03:15,095 INFO L78 Accepts]: Start accepts. Automaton has 16066 states and 24184 transitions. Word has length 494 [2022-12-14 14:03:15,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:03:15,095 INFO L495 AbstractCegarLoop]: Abstraction has 16066 states and 24184 transitions. [2022-12-14 14:03:15,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-12-14 14:03:15,096 INFO L276 IsEmpty]: Start isEmpty. Operand 16066 states and 24184 transitions. [2022-12-14 14:03:15,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2022-12-14 14:03:15,118 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:03:15,118 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 8, 8, 8, 8, 8, 8, 4, 4, 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] [2022-12-14 14:03:15,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 14:03:15,119 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:03:15,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:03:15,119 INFO L85 PathProgramCache]: Analyzing trace with hash 2109865489, now seen corresponding path program 1 times [2022-12-14 14:03:15,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:03:15,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734305255] [2022-12-14 14:03:15,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:03:15,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:03:15,244 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:03:15,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [362719280] [2022-12-14 14:03:15,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:03:15,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:03:15,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:03:15,246 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:03:15,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 14:03:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:03:16,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 5099 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 14:03:16,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:03:16,575 INFO L134 CoverageAnalysis]: Checked inductivity of 3237 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3230 trivial. 0 not checked. [2022-12-14 14:03:16,575 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:03:16,575 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:03:16,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734305255] [2022-12-14 14:03:16,575 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:03:16,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [362719280] [2022-12-14 14:03:16,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [362719280] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:03:16,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:03:16,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:03:16,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762479930] [2022-12-14 14:03:16,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:03:16,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:03:16,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:03:16,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:03:16,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:03:16,578 INFO L87 Difference]: Start difference. First operand 16066 states and 24184 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-12-14 14:03:17,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:03:20,999 WARN L539 Checker$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 14:03:22,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:03:24,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:03:27,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:03:29,450 WARN L539 Checker$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 14:03:31,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:03:34,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:03:34,372 INFO L93 Difference]: Finished difference Result 33589 states and 50537 transitions. [2022-12-14 14:03:34,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:03:34,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 496 [2022-12-14 14:03:34,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:03:34,431 INFO L225 Difference]: With dead ends: 33589 [2022-12-14 14:03:34,431 INFO L226 Difference]: Without dead ends: 17594 [2022-12-14 14:03:34,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 494 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 14:03:34,472 INFO L413 NwaCegarLoop]: 3027 mSDtfsCounter, 501 mSDsluCounter, 2823 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 12 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 5850 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:03:34,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 5850 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 756 Invalid, 4 Unknown, 0 Unchecked, 17.3s Time] [2022-12-14 14:03:34,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17594 states. [2022-12-14 14:03:34,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17594 to 17571. [2022-12-14 14:03:34,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17571 states, 12355 states have (on average 1.4159449615540267) internal successors, (17494), 12449 states have internal predecessors, (17494), 4438 states have call successors, (4438), 782 states have call predecessors, (4438), 777 states have return successors, (4437), 4419 states have call predecessors, (4437), 4437 states have call successors, (4437) [2022-12-14 14:03:34,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17571 states to 17571 states and 26369 transitions. [2022-12-14 14:03:34,984 INFO L78 Accepts]: Start accepts. Automaton has 17571 states and 26369 transitions. Word has length 496 [2022-12-14 14:03:34,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:03:34,985 INFO L495 AbstractCegarLoop]: Abstraction has 17571 states and 26369 transitions. [2022-12-14 14:03:34,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2022-12-14 14:03:34,985 INFO L276 IsEmpty]: Start isEmpty. Operand 17571 states and 26369 transitions. [2022-12-14 14:03:35,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2022-12-14 14:03:35,010 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:03:35,010 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 26, 26, 26, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:03:35,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 14:03:35,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:03:35,211 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:03:35,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:03:35,211 INFO L85 PathProgramCache]: Analyzing trace with hash 813428983, now seen corresponding path program 1 times [2022-12-14 14:03:35,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:03:35,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097720191] [2022-12-14 14:03:35,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:03:35,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:03:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:03:35,873 INFO L134 CoverageAnalysis]: Checked inductivity of 3508 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3491 trivial. 0 not checked. [2022-12-14 14:03:35,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:03:35,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097720191] [2022-12-14 14:03:35,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097720191] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:03:35,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:03:35,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:03:35,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723956968] [2022-12-14 14:03:35,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:03:35,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:03:35,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:03:35,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:03:35,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:03:35,875 INFO L87 Difference]: Start difference. First operand 17571 states and 26369 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-12-14 14:03:37,875 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 14:03:42,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:03:45,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:03:47,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:03:49,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:03:50,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:03:52,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:03:54,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:03:56,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:03:59,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:04:03,694 WARN L539 Checker$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 14:04:05,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:04:08,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:04:14,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:04:14,385 INFO L93 Difference]: Finished difference Result 51398 states and 78981 transitions. [2022-12-14 14:04:14,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:04:14,386 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 544 [2022-12-14 14:04:14,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:04:14,543 INFO L225 Difference]: With dead ends: 51398 [2022-12-14 14:04:14,543 INFO L226 Difference]: Without dead ends: 33901 [2022-12-14 14:04:14,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:04:14,604 INFO L413 NwaCegarLoop]: 4713 mSDtfsCounter, 1992 mSDsluCounter, 7848 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 313 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2307 SdHoareTripleChecker+Valid, 12561 SdHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 313 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:04:14,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2307 Valid, 12561 Invalid, 1758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [313 Valid, 1437 Invalid, 8 Unknown, 0 Unchecked, 37.7s Time] [2022-12-14 14:04:14,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33901 states. [2022-12-14 14:04:15,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33901 to 17587. [2022-12-14 14:04:15,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17587 states, 12371 states have (on average 1.4154070002425025) internal successors, (17510), 12465 states have internal predecessors, (17510), 4438 states have call successors, (4438), 782 states have call predecessors, (4438), 777 states have return successors, (4437), 4419 states have call predecessors, (4437), 4437 states have call successors, (4437) [2022-12-14 14:04:15,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17587 states to 17587 states and 26385 transitions. [2022-12-14 14:04:15,411 INFO L78 Accepts]: Start accepts. Automaton has 17587 states and 26385 transitions. Word has length 544 [2022-12-14 14:04:15,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:04:15,411 INFO L495 AbstractCegarLoop]: Abstraction has 17587 states and 26385 transitions. [2022-12-14 14:04:15,412 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-12-14 14:04:15,412 INFO L276 IsEmpty]: Start isEmpty. Operand 17587 states and 26385 transitions. [2022-12-14 14:04:15,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2022-12-14 14:04:15,434 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:04:15,435 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 26, 26, 26, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:04:15,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 14:04:15,435 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:04:15,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:04:15,435 INFO L85 PathProgramCache]: Analyzing trace with hash -569890085, now seen corresponding path program 1 times [2022-12-14 14:04:15,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:04:15,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335484463] [2022-12-14 14:04:15,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:04:15,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:04:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:04:16,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3508 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3491 trivial. 0 not checked. [2022-12-14 14:04:16,121 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:04:16,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335484463] [2022-12-14 14:04:16,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335484463] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:04:16,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:04:16,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:04:16,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154987808] [2022-12-14 14:04:16,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:04:16,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:04:16,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:04:16,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:04:16,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:04:16,122 INFO L87 Difference]: Start difference. First operand 17587 states and 26385 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-12-14 14:04:20,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:04:22,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:04:25,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:04:28,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:04:29,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:04:32,925 WARN L539 Checker$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 14:04:34,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:04:34,837 INFO L93 Difference]: Finished difference Result 32018 states and 48659 transitions. [2022-12-14 14:04:34,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:04:34,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 547 [2022-12-14 14:04:34,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:04:34,927 INFO L225 Difference]: With dead ends: 32018 [2022-12-14 14:04:34,928 INFO L226 Difference]: Without dead ends: 23127 [2022-12-14 14:04:34,951 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 14:04:34,951 INFO L413 NwaCegarLoop]: 3854 mSDtfsCounter, 657 mSDsluCounter, 3132 mSDsCounter, 0 mSdLazyCounter, 816 mSolverCounterSat, 4 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 6986 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 816 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2022-12-14 14:04:34,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 6986 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 816 Invalid, 5 Unknown, 0 Unchecked, 18.1s Time] [2022-12-14 14:04:34,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23127 states. [2022-12-14 14:04:35,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23127 to 17589. [2022-12-14 14:04:35,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17589 states, 12373 states have (on average 1.4153398529055201) internal successors, (17512), 12467 states have internal predecessors, (17512), 4438 states have call successors, (4438), 782 states have call predecessors, (4438), 777 states have return successors, (4437), 4419 states have call predecessors, (4437), 4437 states have call successors, (4437) [2022-12-14 14:04:35,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17589 states to 17589 states and 26387 transitions. [2022-12-14 14:04:35,718 INFO L78 Accepts]: Start accepts. Automaton has 17589 states and 26387 transitions. Word has length 547 [2022-12-14 14:04:35,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:04:35,719 INFO L495 AbstractCegarLoop]: Abstraction has 17589 states and 26387 transitions. [2022-12-14 14:04:35,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-12-14 14:04:35,719 INFO L276 IsEmpty]: Start isEmpty. Operand 17589 states and 26387 transitions. [2022-12-14 14:04:35,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2022-12-14 14:04:35,751 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:04:35,752 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 26, 26, 26, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 14:04:35,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 14:04:35,752 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:04:35,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:04:35,752 INFO L85 PathProgramCache]: Analyzing trace with hash -230264862, now seen corresponding path program 1 times [2022-12-14 14:04:35,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:04:35,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387883136] [2022-12-14 14:04:35,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:04:35,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:04:35,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:04:36,526 INFO L134 CoverageAnalysis]: Checked inductivity of 3510 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 3492 trivial. 0 not checked. [2022-12-14 14:04:36,526 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:04:36,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387883136] [2022-12-14 14:04:36,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387883136] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 14:04:36,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238610918] [2022-12-14 14:04:36,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:04:36,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:04:36,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:04:36,528 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:04:36,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 14:04:37,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:04:37,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 6386 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:04:37,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:04:38,474 INFO L134 CoverageAnalysis]: Checked inductivity of 3510 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3510 trivial. 0 not checked. [2022-12-14 14:04:38,475 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:04:38,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238610918] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:04:38,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 14:04:38,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-14 14:04:38,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070628163] [2022-12-14 14:04:38,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:04:38,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:04:38,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:04:38,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:04:38,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:04:38,477 INFO L87 Difference]: Start difference. First operand 17589 states and 26387 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) [2022-12-14 14:04:39,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:04:42,648 WARN L539 Checker$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 14:04:44,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:04:46,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:04:49,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:04:52,850 WARN L539 Checker$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 14:04:54,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:04:56,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:04:57,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:04:57,542 INFO L93 Difference]: Finished difference Result 35085 states and 52637 transitions. [2022-12-14 14:04:57,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:04:57,543 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) Word has length 549 [2022-12-14 14:04:57,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:04:57,693 INFO L225 Difference]: With dead ends: 35085 [2022-12-14 14:04:57,693 INFO L226 Difference]: Without dead ends: 35005 [2022-12-14 14:04:57,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 549 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:04:57,704 INFO L413 NwaCegarLoop]: 3567 mSDtfsCounter, 3065 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3065 SdHoareTripleChecker+Valid, 6442 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2022-12-14 14:04:57,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3065 Valid, 6442 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 717 Invalid, 4 Unknown, 0 Unchecked, 18.2s Time] [2022-12-14 14:04:57,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35005 states. [2022-12-14 14:04:58,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35005 to 35005. [2022-12-14 14:04:58,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35005 states, 24649 states have (on average 1.4159600795164105) internal successors, (34902), 24833 states have internal predecessors, (34902), 8815 states have call successors, (8815), 1549 states have call predecessors, (8815), 1540 states have return successors, (8814), 8779 states have call predecessors, (8814), 8814 states have call successors, (8814) [2022-12-14 14:04:58,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35005 states to 35005 states and 52531 transitions. [2022-12-14 14:04:58,839 INFO L78 Accepts]: Start accepts. Automaton has 35005 states and 52531 transitions. Word has length 549 [2022-12-14 14:04:58,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:04:58,840 INFO L495 AbstractCegarLoop]: Abstraction has 35005 states and 52531 transitions. [2022-12-14 14:04:58,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) [2022-12-14 14:04:58,840 INFO L276 IsEmpty]: Start isEmpty. Operand 35005 states and 52531 transitions. [2022-12-14 14:04:58,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2022-12-14 14:04:58,884 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:04:58,884 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 27, 8, 8, 8, 8, 8, 8, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:04:58,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 14:04:59,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:04:59,086 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:04:59,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:04:59,088 INFO L85 PathProgramCache]: Analyzing trace with hash -558145316, now seen corresponding path program 1 times [2022-12-14 14:04:59,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:04:59,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296479496] [2022-12-14 14:04:59,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:04:59,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:04:59,342 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:04:59,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1208659791] [2022-12-14 14:04:59,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:04:59,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:04:59,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:04:59,344 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:04:59,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 14:05:00,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:05:00,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 5543 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 14:05:00,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:05:00,787 INFO L134 CoverageAnalysis]: Checked inductivity of 3766 backedges. 500 proven. 0 refuted. 0 times theorem prover too weak. 3266 trivial. 0 not checked. [2022-12-14 14:05:00,787 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:05:00,787 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:05:00,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296479496] [2022-12-14 14:05:00,788 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:05:00,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208659791] [2022-12-14 14:05:00,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208659791] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:05:00,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:05:00,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:05:00,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239099004] [2022-12-14 14:05:00,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:05:00,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:05:00,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:05:00,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:05:00,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:05:00,790 INFO L87 Difference]: Start difference. First operand 35005 states and 52531 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 3 states have call successors, (59), 3 states have call predecessors, (59), 3 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-12-14 14:05:03,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:05:06,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:05:09,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:05:10,834 WARN L539 Checker$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 14:05:14,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:05:17,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:05:17,530 INFO L93 Difference]: Finished difference Result 52192 states and 78404 transitions. [2022-12-14 14:05:17,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:05:17,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 3 states have call successors, (59), 3 states have call predecessors, (59), 3 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 557 [2022-12-14 14:05:17,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:05:17,734 INFO L225 Difference]: With dead ends: 52192 [2022-12-14 14:05:17,734 INFO L226 Difference]: Without dead ends: 52088 [2022-12-14 14:05:17,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 556 GetRequests, 555 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 14:05:17,763 INFO L413 NwaCegarLoop]: 3840 mSDtfsCounter, 3088 mSDsluCounter, 2839 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3088 SdHoareTripleChecker+Valid, 6679 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:05:17,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3088 Valid, 6679 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 767 Invalid, 3 Unknown, 0 Unchecked, 15.5s Time] [2022-12-14 14:05:17,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52088 states. [2022-12-14 14:05:19,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52088 to 51764. [2022-12-14 14:05:19,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51764 states, 36422 states have (on average 1.4164515951897205) internal successors, (51590), 36694 states have internal predecessors, (51590), 13090 states have call successors, (13090), 2264 states have call predecessors, (13090), 2251 states have return successors, (13089), 13034 states have call predecessors, (13089), 13089 states have call successors, (13089) [2022-12-14 14:05:19,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51764 states to 51764 states and 77769 transitions. [2022-12-14 14:05:19,507 INFO L78 Accepts]: Start accepts. Automaton has 51764 states and 77769 transitions. Word has length 557 [2022-12-14 14:05:19,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:05:19,507 INFO L495 AbstractCegarLoop]: Abstraction has 51764 states and 77769 transitions. [2022-12-14 14:05:19,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 3 states have call successors, (59), 3 states have call predecessors, (59), 3 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-12-14 14:05:19,508 INFO L276 IsEmpty]: Start isEmpty. Operand 51764 states and 77769 transitions. [2022-12-14 14:05:19,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2022-12-14 14:05:19,576 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:05:19,576 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 8, 8, 8, 8, 8, 8, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:05:19,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-12-14 14:05:19,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:05:19,778 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:05:19,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:05:19,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1626462463, now seen corresponding path program 1 times [2022-12-14 14:05:19,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:05:19,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048069429] [2022-12-14 14:05:19,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:05:19,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:05:19,930 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:05:19,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1406624428] [2022-12-14 14:05:19,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:05:19,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:05:19,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:05:19,931 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:05:19,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 14:05:21,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:05:21,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 5631 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 14:05:21,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:05:21,177 INFO L134 CoverageAnalysis]: Checked inductivity of 4036 backedges. 776 proven. 0 refuted. 0 times theorem prover too weak. 3260 trivial. 0 not checked. [2022-12-14 14:05:21,177 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:05:21,177 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:05:21,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048069429] [2022-12-14 14:05:21,178 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:05:21,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1406624428] [2022-12-14 14:05:21,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1406624428] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:05:21,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:05:21,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:05:21,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893288661] [2022-12-14 14:05:21,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:05:21,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:05:21,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:05:21,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:05:21,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:05:21,180 INFO L87 Difference]: Start difference. First operand 51764 states and 77769 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 3 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-12-14 14:05:24,236 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 14:05:27,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:05:31,503 WARN L539 Checker$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 14:05:34,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:05:36,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:05:36,929 INFO L93 Difference]: Finished difference Result 132885 states and 198155 transitions. [2022-12-14 14:05:36,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:05:36,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 3 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 569 [2022-12-14 14:05:36,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:05:37,317 INFO L225 Difference]: With dead ends: 132885 [2022-12-14 14:05:37,318 INFO L226 Difference]: Without dead ends: 81203 [2022-12-14 14:05:37,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 568 GetRequests, 567 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 14:05:37,476 INFO L413 NwaCegarLoop]: 3300 mSDtfsCounter, 2504 mSDsluCounter, 2350 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 17 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2504 SdHoareTripleChecker+Valid, 5650 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:05:37,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2504 Valid, 5650 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 693 Invalid, 4 Unknown, 0 Unchecked, 13.6s Time] [2022-12-14 14:05:37,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81203 states. [2022-12-14 14:05:39,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81203 to 81172. [2022-12-14 14:05:39,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81172 states, 56766 states have (on average 1.401437480181799) internal successors, (79554), 57218 states have internal predecessors, (79554), 20398 states have call successors, (20398), 4032 states have call predecessors, (20398), 4007 states have return successors, (20397), 20306 states have call predecessors, (20397), 20397 states have call successors, (20397) [2022-12-14 14:05:40,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81172 states to 81172 states and 120349 transitions. [2022-12-14 14:05:40,296 INFO L78 Accepts]: Start accepts. Automaton has 81172 states and 120349 transitions. Word has length 569 [2022-12-14 14:05:40,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:05:40,297 INFO L495 AbstractCegarLoop]: Abstraction has 81172 states and 120349 transitions. [2022-12-14 14:05:40,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 3 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-12-14 14:05:40,297 INFO L276 IsEmpty]: Start isEmpty. Operand 81172 states and 120349 transitions. [2022-12-14 14:05:40,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 609 [2022-12-14 14:05:40,565 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:05:40,565 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:05:40,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 14:05:40,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 14:05:40,767 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:05:40,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:05:40,770 INFO L85 PathProgramCache]: Analyzing trace with hash 233312928, now seen corresponding path program 1 times [2022-12-14 14:05:40,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:05:40,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315156963] [2022-12-14 14:05:40,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:05:40,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:05:40,989 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:05:40,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [472458868] [2022-12-14 14:05:40,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:05:40,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:05:40,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:05:40,990 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:05:40,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 14:05:42,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:05:42,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 5850 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:05:42,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:05:43,256 INFO L134 CoverageAnalysis]: Checked inductivity of 4064 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4064 trivial. 0 not checked. [2022-12-14 14:05:43,256 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:05:43,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:05:43,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315156963] [2022-12-14 14:05:43,257 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:05:43,257 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472458868] [2022-12-14 14:05:43,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472458868] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:05:43,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:05:43,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:05:43,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881279810] [2022-12-14 14:05:43,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:05:43,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:05:43,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:05:43,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:05:43,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:05:43,260 INFO L87 Difference]: Start difference. First operand 81172 states and 120349 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2022-12-14 14:05:47,072 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 14:05:50,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:05:54,143 WARN L539 Checker$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 14:05:57,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:06:01,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:06:01,129 INFO L93 Difference]: Finished difference Result 130020 states and 192305 transitions. [2022-12-14 14:06:01,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:06:01,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 608 [2022-12-14 14:06:01,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:06:01,742 INFO L225 Difference]: With dead ends: 130020 [2022-12-14 14:06:01,742 INFO L226 Difference]: Without dead ends: 129940 [2022-12-14 14:06:01,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 607 GetRequests, 606 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 14:06:01,817 INFO L413 NwaCegarLoop]: 3640 mSDtfsCounter, 2978 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2978 SdHoareTripleChecker+Valid, 6515 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:06:01,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2978 Valid, 6515 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 727 Invalid, 4 Unknown, 0 Unchecked, 14.7s Time] [2022-12-14 14:06:01,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129940 states. [2022-12-14 14:06:06,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129940 to 129832. [2022-12-14 14:06:06,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129832 states, 90430 states have (on average 1.3968594492977995) internal successors, (126318), 91176 states have internal predecessors, (126318), 32854 states have call successors, (32854), 6572 states have call predecessors, (32854), 6547 states have return successors, (32853), 32726 states have call predecessors, (32853), 32853 states have call successors, (32853) [2022-12-14 14:06:07,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129832 states to 129832 states and 192025 transitions. [2022-12-14 14:06:07,541 INFO L78 Accepts]: Start accepts. Automaton has 129832 states and 192025 transitions. Word has length 608 [2022-12-14 14:06:07,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:06:07,541 INFO L495 AbstractCegarLoop]: Abstraction has 129832 states and 192025 transitions. [2022-12-14 14:06:07,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2022-12-14 14:06:07,542 INFO L276 IsEmpty]: Start isEmpty. Operand 129832 states and 192025 transitions. [2022-12-14 14:06:07,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2022-12-14 14:06:07,735 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:06:07,735 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 26, 26, 26, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 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] [2022-12-14 14:06:07,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 14:06:07,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-14 14:06:07,937 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:06:07,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:06:07,939 INFO L85 PathProgramCache]: Analyzing trace with hash 799090157, now seen corresponding path program 1 times [2022-12-14 14:06:07,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:06:07,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110118515] [2022-12-14 14:06:07,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:06:07,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:06:08,138 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:06:08,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [156290408] [2022-12-14 14:06:08,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:06:08,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:06:08,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:06:08,139 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:06:08,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 14:06:09,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:06:09,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 7399 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 14:06:09,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:06:10,208 INFO L134 CoverageAnalysis]: Checked inductivity of 3533 backedges. 276 proven. 0 refuted. 0 times theorem prover too weak. 3257 trivial. 0 not checked. [2022-12-14 14:06:10,209 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:06:10,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:06:10,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110118515] [2022-12-14 14:06:10,209 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:06:10,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156290408] [2022-12-14 14:06:10,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156290408] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:06:10,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:06:10,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:06:10,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568755847] [2022-12-14 14:06:10,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:06:10,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:06:10,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:06:10,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:06:10,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:06:10,211 INFO L87 Difference]: Start difference. First operand 129832 states and 192025 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 3 states have call successors, (69), 3 states have call predecessors, (69), 3 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2022-12-14 14:06:11,269 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 14:06:14,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:06:17,333 WARN L539 Checker$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 14:06:19,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:06:25,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:06:29,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:06:29,181 INFO L93 Difference]: Finished difference Result 173211 states and 256394 transitions. [2022-12-14 14:06:29,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:06:29,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 3 states have call successors, (69), 3 states have call predecessors, (69), 3 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) Word has length 611 [2022-12-14 14:06:29,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:06:29,883 INFO L225 Difference]: With dead ends: 173211 [2022-12-14 14:06:29,883 INFO L226 Difference]: Without dead ends: 132133 [2022-12-14 14:06:30,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 609 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 14:06:30,107 INFO L413 NwaCegarLoop]: 3033 mSDtfsCounter, 457 mSDsluCounter, 2823 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 12 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 5856 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:06:30,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [457 Valid, 5856 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 748 Invalid, 4 Unknown, 0 Unchecked, 15.3s Time] [2022-12-14 14:06:30,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132133 states. [2022-12-14 14:06:33,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132133 to 131986. [2022-12-14 14:06:33,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131986 states, 92153 states have (on average 1.39830499278374) internal successors, (128858), 92909 states have internal predecessors, (128858), 33160 states have call successors, (33160), 6697 states have call predecessors, (33160), 6672 states have return successors, (33159), 33030 states have call predecessors, (33159), 33159 states have call successors, (33159) [2022-12-14 14:06:34,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131986 states to 131986 states and 195177 transitions. [2022-12-14 14:06:34,509 INFO L78 Accepts]: Start accepts. Automaton has 131986 states and 195177 transitions. Word has length 611 [2022-12-14 14:06:34,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:06:34,510 INFO L495 AbstractCegarLoop]: Abstraction has 131986 states and 195177 transitions. [2022-12-14 14:06:34,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 3 states have call successors, (69), 3 states have call predecessors, (69), 3 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2022-12-14 14:06:34,510 INFO L276 IsEmpty]: Start isEmpty. Operand 131986 states and 195177 transitions. [2022-12-14 14:06:34,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2022-12-14 14:06:34,780 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:06:34,780 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:06:34,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 14:06:34,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:06:34,982 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:06:34,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:06:34,984 INFO L85 PathProgramCache]: Analyzing trace with hash -728131265, now seen corresponding path program 1 times [2022-12-14 14:06:34,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:06:34,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810999082] [2022-12-14 14:06:34,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:06:34,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:06:35,358 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:06:35,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1211088306] [2022-12-14 14:06:35,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:06:35,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:06:35,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:06:35,359 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:06:35,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 14:06:37,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:06:37,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 7652 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 14:06:37,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:06:37,435 INFO L134 CoverageAnalysis]: Checked inductivity of 4061 backedges. 806 proven. 0 refuted. 0 times theorem prover too weak. 3255 trivial. 0 not checked. [2022-12-14 14:06:37,435 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:06:37,435 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:06:37,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810999082] [2022-12-14 14:06:37,436 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:06:37,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211088306] [2022-12-14 14:06:37,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211088306] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:06:37,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:06:37,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:06:37,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206904528] [2022-12-14 14:06:37,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:06:37,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:06:37,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:06:37,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:06:37,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:06:37,438 INFO L87 Difference]: Start difference. First operand 131986 states and 195177 transitions. Second operand has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 3 states have call successors, (71), 3 states have call predecessors, (71), 3 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) [2022-12-14 14:06:38,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:06:41,346 WARN L539 Checker$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 14:06:44,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:06:48,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:06:52,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:06:55,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:06:55,274 INFO L93 Difference]: Finished difference Result 177519 states and 262698 transitions. [2022-12-14 14:06:55,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:06:55,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 3 states have call successors, (71), 3 states have call predecessors, (71), 3 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) Word has length 634 [2022-12-14 14:06:55,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:06:55,962 INFO L225 Difference]: With dead ends: 177519 [2022-12-14 14:06:55,962 INFO L226 Difference]: Without dead ends: 134287 [2022-12-14 14:06:56,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 633 GetRequests, 632 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 14:06:56,114 INFO L413 NwaCegarLoop]: 3314 mSDtfsCounter, 2494 mSDsluCounter, 2350 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2494 SdHoareTripleChecker+Valid, 5664 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-12-14 14:06:56,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2494 Valid, 5664 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 695 Invalid, 2 Unknown, 0 Unchecked, 14.6s Time] [2022-12-14 14:06:56,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134287 states. [2022-12-14 14:06:59,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134287 to 134248. [2022-12-14 14:07:00,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134248 states, 93977 states have (on average 1.4002575098162315) internal successors, (131592), 94743 states have internal predecessors, (131592), 33472 states have call successors, (33472), 6823 states have call predecessors, (33472), 6798 states have return successors, (33471), 33340 states have call predecessors, (33471), 33471 states have call successors, (33471) [2022-12-14 14:07:00,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134248 states to 134248 states and 198535 transitions. [2022-12-14 14:07:00,798 INFO L78 Accepts]: Start accepts. Automaton has 134248 states and 198535 transitions. Word has length 634 [2022-12-14 14:07:00,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:07:00,799 INFO L495 AbstractCegarLoop]: Abstraction has 134248 states and 198535 transitions. [2022-12-14 14:07:00,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 3 states have call successors, (71), 3 states have call predecessors, (71), 3 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) [2022-12-14 14:07:00,799 INFO L276 IsEmpty]: Start isEmpty. Operand 134248 states and 198535 transitions. [2022-12-14 14:07:01,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 662 [2022-12-14 14:07:01,246 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:07:01,246 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 27, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:07:01,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-14 14:07:01,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:07:01,448 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:07:01,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:07:01,450 INFO L85 PathProgramCache]: Analyzing trace with hash -512669285, now seen corresponding path program 1 times [2022-12-14 14:07:01,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:07:01,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107701782] [2022-12-14 14:07:01,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:07:01,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:07:01,670 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:07:01,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1953594506] [2022-12-14 14:07:01,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:07:01,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:07:01,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:07:01,672 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:07:01,672 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 14:07:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:07:03,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 7783 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 14:07:03,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:07:03,995 INFO L134 CoverageAnalysis]: Checked inductivity of 3835 backedges. 555 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2022-12-14 14:07:03,995 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:07:03,995 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:07:03,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107701782] [2022-12-14 14:07:03,995 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:07:03,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953594506] [2022-12-14 14:07:03,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953594506] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:07:03,995 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:07:03,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:07:03,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094408224] [2022-12-14 14:07:03,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:07:03,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:07:03,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:07:03,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:07:03,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:07:03,998 INFO L87 Difference]: Start difference. First operand 134248 states and 198535 transitions. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 3 states have call successors, (76), 3 states have call predecessors, (76), 3 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2022-12-14 14:07:07,407 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 14:07:10,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:07:13,398 WARN L539 Checker$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 14:07:17,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:07:23,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:07:23,175 INFO L93 Difference]: Finished difference Result 258784 states and 383053 transitions. [2022-12-14 14:07:23,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:07:23,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 3 states have call successors, (76), 3 states have call predecessors, (76), 3 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) Word has length 661 [2022-12-14 14:07:23,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:07:24,181 INFO L225 Difference]: With dead ends: 258784 [2022-12-14 14:07:24,181 INFO L226 Difference]: Without dead ends: 215866 [2022-12-14 14:07:24,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 660 GetRequests, 659 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 14:07:24,386 INFO L413 NwaCegarLoop]: 3557 mSDtfsCounter, 2990 mSDsluCounter, 2868 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2990 SdHoareTripleChecker+Valid, 6425 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-12-14 14:07:24,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2990 Valid, 6425 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 739 Invalid, 4 Unknown, 0 Unchecked, 13.8s Time] [2022-12-14 14:07:24,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215866 states. [2022-12-14 14:07:30,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215866 to 215599. [2022-12-14 14:07:30,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215599 states, 150777 states have (on average 1.3996100200959032) internal successors, (211029), 151971 states have internal predecessors, (211029), 54006 states have call successors, (54006), 10858 states have call predecessors, (54006), 10815 states have return successors, (54005), 53802 states have call predecessors, (54005), 54005 states have call successors, (54005) [2022-12-14 14:07:32,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215599 states to 215599 states and 319040 transitions. [2022-12-14 14:07:32,264 INFO L78 Accepts]: Start accepts. Automaton has 215599 states and 319040 transitions. Word has length 661 [2022-12-14 14:07:32,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:07:32,265 INFO L495 AbstractCegarLoop]: Abstraction has 215599 states and 319040 transitions. [2022-12-14 14:07:32,265 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 3 states have call successors, (76), 3 states have call predecessors, (76), 3 states have return successors, (75), 3 states have call predecessors, (75), 3 states have call successors, (75) [2022-12-14 14:07:32,265 INFO L276 IsEmpty]: Start isEmpty. Operand 215599 states and 319040 transitions. [2022-12-14 14:07:32,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2022-12-14 14:07:32,736 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:07:32,736 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 27, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:07:32,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-14 14:07:32,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-14 14:07:32,939 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:07:32,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:07:32,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1764640904, now seen corresponding path program 1 times [2022-12-14 14:07:32,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:07:32,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711242390] [2022-12-14 14:07:32,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:07:32,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:07:33,145 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:07:33,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2016940931] [2022-12-14 14:07:33,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:07:33,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:07:33,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:07:33,147 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:07:33,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 14:07:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:07:34,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 6775 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 14:07:34,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:07:35,294 INFO L134 CoverageAnalysis]: Checked inductivity of 3873 backedges. 500 proven. 0 refuted. 0 times theorem prover too weak. 3373 trivial. 0 not checked. [2022-12-14 14:07:35,294 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:07:35,294 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:07:35,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711242390] [2022-12-14 14:07:35,294 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:07:35,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016940931] [2022-12-14 14:07:35,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016940931] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:07:35,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:07:35,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:07:35,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969604061] [2022-12-14 14:07:35,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:07:35,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:07:35,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:07:35,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:07:35,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:07:35,297 INFO L87 Difference]: Start difference. First operand 215599 states and 319040 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 3 states have call successors, (72), 3 states have call predecessors, (72), 3 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) [2022-12-14 14:07:38,977 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 14:07:42,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:07:44,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:07:48,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:07:52,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:07:57,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:07:57,457 INFO L93 Difference]: Finished difference Result 242982 states and 359823 transitions. [2022-12-14 14:07:57,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:07:57,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 3 states have call successors, (72), 3 states have call predecessors, (72), 3 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) Word has length 658 [2022-12-14 14:07:57,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:07:58,692 INFO L225 Difference]: With dead ends: 242982 [2022-12-14 14:07:58,693 INFO L226 Difference]: Without dead ends: 242878 [2022-12-14 14:07:58,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 656 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 14:07:58,803 INFO L413 NwaCegarLoop]: 3611 mSDtfsCounter, 3027 mSDsluCounter, 2839 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3027 SdHoareTripleChecker+Valid, 6450 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:07:58,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3027 Valid, 6450 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 742 Invalid, 4 Unknown, 0 Unchecked, 16.7s Time] [2022-12-14 14:07:58,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242878 states. [2022-12-14 14:08:06,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242878 to 240786. [2022-12-14 14:08:06,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240786 states, 168285 states have (on average 1.3995246159788455) internal successors, (235519), 169615 states have internal predecessors, (235519), 60469 states have call successors, (60469), 12082 states have call predecessors, (60469), 12031 states have return successors, (60468), 60237 states have call predecessors, (60468), 60468 states have call successors, (60468) [2022-12-14 14:08:08,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240786 states to 240786 states and 356456 transitions. [2022-12-14 14:08:08,423 INFO L78 Accepts]: Start accepts. Automaton has 240786 states and 356456 transitions. Word has length 658 [2022-12-14 14:08:08,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:08:08,424 INFO L495 AbstractCegarLoop]: Abstraction has 240786 states and 356456 transitions. [2022-12-14 14:08:08,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 3 states have call successors, (72), 3 states have call predecessors, (72), 3 states have return successors, (71), 3 states have call predecessors, (71), 3 states have call successors, (71) [2022-12-14 14:08:08,424 INFO L276 IsEmpty]: Start isEmpty. Operand 240786 states and 356456 transitions. [2022-12-14 14:08:09,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 674 [2022-12-14 14:08:09,066 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:08:09,066 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:08:09,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-12-14 14:08:09,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-14 14:08:09,268 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:08:09,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:08:09,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1613059892, now seen corresponding path program 1 times [2022-12-14 14:08:09,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:08:09,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953718742] [2022-12-14 14:08:09,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:08:09,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:08:09,580 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:08:09,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1426389838] [2022-12-14 14:08:09,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:08:09,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:08:09,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:08:09,581 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:08:09,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-14 14:08:11,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:08:11,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 7871 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:08:11,620 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:08:12,592 INFO L134 CoverageAnalysis]: Checked inductivity of 4105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4105 trivial. 0 not checked. [2022-12-14 14:08:12,592 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:08:12,592 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:08:12,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953718742] [2022-12-14 14:08:12,592 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:08:12,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426389838] [2022-12-14 14:08:12,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426389838] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:08:12,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:08:12,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:08:12,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963876012] [2022-12-14 14:08:12,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:08:12,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:08:12,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:08:12,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:08:12,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:08:12,594 INFO L87 Difference]: Start difference. First operand 240786 states and 356456 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 2 states have internal predecessors, (179), 2 states have call successors, (74), 2 states have call predecessors, (74), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2022-12-14 14:08:16,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:08:18,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:08:23,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:08:27,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:08:28,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:08:31,888 WARN L539 Checker$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 14:08:37,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:08:37,915 INFO L93 Difference]: Finished difference Result 296066 states and 438498 transitions. [2022-12-14 14:08:37,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:08:37,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 2 states have internal predecessors, (179), 2 states have call successors, (74), 2 states have call predecessors, (74), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) Word has length 673 [2022-12-14 14:08:37,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:08:39,439 INFO L225 Difference]: With dead ends: 296066 [2022-12-14 14:08:39,439 INFO L226 Difference]: Without dead ends: 295986 [2022-12-14 14:08:39,574 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 672 GetRequests, 671 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 14:08:39,575 INFO L413 NwaCegarLoop]: 3547 mSDtfsCounter, 2987 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2987 SdHoareTripleChecker+Valid, 6422 SdHoareTripleChecker+Invalid, 719 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.8s IncrementalHoareTripleChecker+Time [2022-12-14 14:08:39,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2987 Valid, 6422 Invalid, 719 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 714 Invalid, 5 Unknown, 0 Unchecked, 18.8s Time] [2022-12-14 14:08:39,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295986 states. [2022-12-14 14:08:49,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295986 to 295549. [2022-12-14 14:08:49,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295549 states, 206782 states have (on average 1.4004071921153678) internal successors, (289579), 208401 states have internal predecessors, (289579), 74051 states have call successors, (74051), 14766 states have call predecessors, (74051), 14715 states have return successors, (74050), 73778 states have call predecessors, (74050), 74050 states have call successors, (74050) [2022-12-14 14:08:51,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295549 states to 295549 states and 437680 transitions. [2022-12-14 14:08:51,896 INFO L78 Accepts]: Start accepts. Automaton has 295549 states and 437680 transitions. Word has length 673 [2022-12-14 14:08:51,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:08:51,897 INFO L495 AbstractCegarLoop]: Abstraction has 295549 states and 437680 transitions. [2022-12-14 14:08:51,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 2 states have internal predecessors, (179), 2 states have call successors, (74), 2 states have call predecessors, (74), 1 states have return successors, (73), 1 states have call predecessors, (73), 1 states have call successors, (73) [2022-12-14 14:08:51,897 INFO L276 IsEmpty]: Start isEmpty. Operand 295549 states and 437680 transitions. [2022-12-14 14:08:52,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2022-12-14 14:08:52,553 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:08:52,553 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:08:52,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-14 14:08:52,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-14 14:08:52,755 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:08:52,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:08:52,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1805303499, now seen corresponding path program 1 times [2022-12-14 14:08:52,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:08:52,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595140595] [2022-12-14 14:08:52,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:08:52,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:08:53,031 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:08:53,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [661085186] [2022-12-14 14:08:53,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:08:53,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:08:53,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:08:53,033 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:08:53,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-14 14:08:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:08:55,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 6863 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 14:08:55,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:08:56,294 INFO L134 CoverageAnalysis]: Checked inductivity of 4143 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4143 trivial. 0 not checked. [2022-12-14 14:08:56,294 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:08:56,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:08:56,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595140595] [2022-12-14 14:08:56,295 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:08:56,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661085186] [2022-12-14 14:08:56,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661085186] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:08:56,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:08:56,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 14:08:56,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631483806] [2022-12-14 14:08:56,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:08:56,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:08:56,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:08:56,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:08:56,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:08:56,298 INFO L87 Difference]: Start difference. First operand 295549 states and 437680 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 2 states have internal predecessors, (173), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2022-12-14 14:08:59,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:09:02,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:09:05,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:09:07,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:09:10,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:09:13,346 WARN L539 Checker$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 14:09:23,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:09:23,115 INFO L93 Difference]: Finished difference Result 383010 states and 565472 transitions. [2022-12-14 14:09:23,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:09:23,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 2 states have internal predecessors, (173), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) Word has length 670 [2022-12-14 14:09:23,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:09:25,222 INFO L225 Difference]: With dead ends: 383010 [2022-12-14 14:09:25,222 INFO L226 Difference]: Without dead ends: 382930 [2022-12-14 14:09:25,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 669 GetRequests, 668 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 14:09:25,392 INFO L413 NwaCegarLoop]: 3530 mSDtfsCounter, 2948 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2948 SdHoareTripleChecker+Valid, 6405 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2022-12-14 14:09:25,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2948 Valid, 6405 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 716 Invalid, 2 Unknown, 0 Unchecked, 17.4s Time] [2022-12-14 14:09:25,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382930 states. [2022-12-14 14:09:38,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382930 to 382601. [2022-12-14 14:09:38,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382601 states, 266060 states have (on average 1.394027662933173) internal successors, (370895), 268306 states have internal predecessors, (370895), 96969 states have call successors, (96969), 19572 states have call predecessors, (96969), 19571 states have return successors, (96968), 96658 states have call predecessors, (96968), 96968 states have call successors, (96968) [2022-12-14 14:09:41,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382601 states to 382601 states and 564832 transitions. [2022-12-14 14:09:41,068 INFO L78 Accepts]: Start accepts. Automaton has 382601 states and 564832 transitions. Word has length 670 [2022-12-14 14:09:41,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:09:41,069 INFO L495 AbstractCegarLoop]: Abstraction has 382601 states and 564832 transitions. [2022-12-14 14:09:41,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 2 states have internal predecessors, (173), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (70), 1 states have call predecessors, (70), 1 states have call successors, (70) [2022-12-14 14:09:41,069 INFO L276 IsEmpty]: Start isEmpty. Operand 382601 states and 564832 transitions. [2022-12-14 14:09:42,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2022-12-14 14:09:42,026 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:09:42,027 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 27, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-12-14 14:09:42,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-14 14:09:42,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-14 14:09:42,228 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:09:42,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:09:42,228 INFO L85 PathProgramCache]: Analyzing trace with hash -698483412, now seen corresponding path program 1 times [2022-12-14 14:09:42,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:09:42,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446763367] [2022-12-14 14:09:42,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:09:42,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:09:42,473 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 14:09:42,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1353504393] [2022-12-14 14:09:42,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:09:42,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:09:42,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:09:42,475 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:09:42,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_501a9e0b-762a-4ebc-8944-dc6207736937/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-14 14:09:44,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:09:44,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 7385 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 14:09:44,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:09:45,047 INFO L134 CoverageAnalysis]: Checked inductivity of 3860 backedges. 555 proven. 0 refuted. 0 times theorem prover too weak. 3305 trivial. 0 not checked. [2022-12-14 14:09:45,047 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:09:45,048 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 14:09:45,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446763367] [2022-12-14 14:09:45,048 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 14:09:45,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353504393] [2022-12-14 14:09:45,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353504393] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:09:45,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:09:45,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 14:09:45,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384878989] [2022-12-14 14:09:45,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:09:45,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 14:09:45,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 14:09:45,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 14:09:45,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 14:09:45,051 INFO L87 Difference]: Start difference. First operand 382601 states and 564832 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 3 states have call successors, (79), 3 states have call predecessors, (79), 3 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) [2022-12-14 14:09:49,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 14:09:52,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:09:54,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:09:57,551 WARN L539 Checker$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 14:10:01,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 14:10:21,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:10:21,330 INFO L93 Difference]: Finished difference Result 933578 states and 1379538 transitions. [2022-12-14 14:10:21,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 14:10:21,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 3 states have call successors, (79), 3 states have call predecessors, (79), 3 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) Word has length 694 [2022-12-14 14:10:21,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:10:25,515 INFO L225 Difference]: With dead ends: 933578 [2022-12-14 14:10:25,516 INFO L226 Difference]: Without dead ends: 667182 [2022-12-14 14:10:26,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 693 GetRequests, 692 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 14:10:26,883 INFO L413 NwaCegarLoop]: 3556 mSDtfsCounter, 2995 mSDsluCounter, 2868 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2995 SdHoareTripleChecker+Valid, 6424 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2022-12-14 14:10:26,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2995 Valid, 6424 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 739 Invalid, 4 Unknown, 0 Unchecked, 16.7s Time] [2022-12-14 14:10:27,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667182 states. [2022-12-14 14:10:48,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667182 to 666565. [2022-12-14 14:10:48,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 666565 states, 463437 states have (on average 1.3938960419647115) internal successors, (645983), 467227 states have internal predecessors, (645983), 169298 states have call successors, (169298), 33830 states have call predecessors, (169298), 33829 states have return successors, (169297), 168785 states have call predecessors, (169297), 169297 states have call successors, (169297) [2022-12-14 14:10:53,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 666565 states to 666565 states and 984578 transitions. [2022-12-14 14:10:53,571 INFO L78 Accepts]: Start accepts. Automaton has 666565 states and 984578 transitions. Word has length 694 [2022-12-14 14:10:53,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:10:53,572 INFO L495 AbstractCegarLoop]: Abstraction has 666565 states and 984578 transitions. [2022-12-14 14:10:53,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 3 states have call successors, (79), 3 states have call predecessors, (79), 3 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) [2022-12-14 14:10:53,572 INFO L276 IsEmpty]: Start isEmpty. Operand 666565 states and 984578 transitions.