./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2ecffe8a5f60817da30887d6b361935e398ff8703e4fd5b17747e558625c4088 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:37:08,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:37:08,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:37:08,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:37:08,292 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:37:08,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:37:08,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:37:08,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:37:08,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:37:08,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:37:08,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:37:08,303 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:37:08,303 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:37:08,305 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:37:08,306 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:37:08,307 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:37:08,309 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:37:08,310 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:37:08,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:37:08,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:37:08,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:37:08,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:37:08,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:37:08,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:37:08,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:37:08,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:37:08,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:37:08,327 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:37:08,327 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:37:08,329 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:37:08,329 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:37:08,330 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:37:08,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:37:08,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:37:08,334 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:37:08,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:37:08,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:37:08,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:37:08,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:37:08,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:37:08,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:37:08,339 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 22:37:08,365 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:37:08,366 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:37:08,366 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:37:08,366 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:37:08,367 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:37:08,367 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:37:08,367 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:37:08,368 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:37:08,368 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:37:08,368 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:37:08,368 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:37:08,369 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:37:08,369 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:37:08,369 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:37:08,369 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:37:08,370 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:37:08,370 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:37:08,370 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:37:08,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:37:08,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:37:08,371 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:37:08,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:37:08,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:37:08,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:37:08,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:37:08,373 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:37:08,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:37:08,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:37:08,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:37:08,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:37:08,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:37:08,374 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:37:08,374 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:37:08,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:37:08,375 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:37:08,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:37:08,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:37:08,376 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:37:08,376 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_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ecffe8a5f60817da30887d6b361935e398ff8703e4fd5b17747e558625c4088 [2022-11-25 22:37:08,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:37:08,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:37:08,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:37:08,684 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:37:08,684 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:37:08,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-11-25 22:37:11,877 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:37:12,533 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:37:12,534 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-11-25 22:37:12,600 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/data/33a9ad659/cc591278c7ac4bfc9374f153ab874c19/FLAG1dbea14ae [2022-11-25 22:37:12,622 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/data/33a9ad659/cc591278c7ac4bfc9374f153ab874c19 [2022-11-25 22:37:12,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:37:12,629 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:37:12,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:37:12,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:37:12,634 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:37:12,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:37:12" (1/1) ... [2022-11-25 22:37:12,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bebe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:12, skipping insertion in model container [2022-11-25 22:37:12,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:37:12" (1/1) ... [2022-11-25 22:37:12,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:37:12,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:37:13,477 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:37:13,775 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 22:37:13,808 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-11-25 22:37:13,837 WARN L623 FunctionHandler]: Unknown extern function __register_chrdev [2022-11-25 22:37:13,842 WARN L623 FunctionHandler]: Unknown extern function __unregister_chrdev [2022-11-25 22:37:13,989 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 22:37:13,990 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 22:37:13,991 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 22:37:13,992 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 22:37:13,997 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 22:37:13,998 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 22:37:14,168 WARN L623 FunctionHandler]: Unknown extern function scsi_normalize_sense [2022-11-25 22:37:14,169 WARN L623 FunctionHandler]: Unknown extern function scsi_get_sense_info_fld [2022-11-25 22:37:14,172 WARN L623 FunctionHandler]: Unknown extern function scsi_sense_desc_find [2022-11-25 22:37:14,182 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,182 WARN L623 FunctionHandler]: Unknown extern function __scsi_print_sense [2022-11-25 22:37:14,183 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,184 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,185 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,194 WARN L623 FunctionHandler]: Unknown extern function complete [2022-11-25 22:37:14,195 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:37:14,196 WARN L623 FunctionHandler]: Unknown extern function blk_rq_unmap_user [2022-11-25 22:37:14,196 WARN L623 FunctionHandler]: Unknown extern function __blk_put_request [2022-11-25 22:37:14,211 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:37:14,219 WARN L623 FunctionHandler]: Unknown extern function blk_get_request [2022-11-25 22:37:14,222 WARN L623 FunctionHandler]: Unknown extern function sg_next [2022-11-25 22:37:14,224 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_user [2022-11-25 22:37:14,225 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:37:14,226 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_kern [2022-11-25 22:37:14,228 WARN L623 FunctionHandler]: Unknown extern function blk_execute_rq_nowait [2022-11-25 22:37:14,229 WARN L623 FunctionHandler]: Unknown extern function blk_put_request [2022-11-25 22:37:14,236 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,238 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,253 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-11-25 22:37:14,258 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-11-25 22:37:14,261 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,286 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:37:14,287 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:37:14,290 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,296 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,304 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-11-25 22:37:14,305 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 22:37:14,306 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 22:37:14,316 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 22:37:14,338 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,340 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 22:37:14,348 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-25 22:37:14,351 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,351 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,368 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,376 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,380 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,383 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,404 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,438 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-25 22:37:14,439 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,443 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,444 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:37:14,447 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,447 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:37:14,451 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 22:37:14,453 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,453 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:37:14,455 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,457 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:37:14,465 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-11-25 22:37:14,474 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-25 22:37:14,477 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,480 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,482 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-11-25 22:37:14,483 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-25 22:37:14,483 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,488 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,491 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,493 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,495 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,498 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,510 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,514 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,551 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,553 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,555 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,557 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,578 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,585 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,592 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-25 22:37:14,593 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,598 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,612 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,612 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,614 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-25 22:37:14,615 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-25 22:37:14,616 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 22:37:14,618 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:37:14,619 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,619 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,621 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-25 22:37:14,622 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,625 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,626 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,626 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,626 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,627 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,627 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,628 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,628 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,629 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,629 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,630 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,630 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,631 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,631 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,632 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,640 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,661 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,661 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,662 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,665 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,667 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,669 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,671 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,678 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,681 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,683 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,687 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,701 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,724 WARN L623 FunctionHandler]: Unknown extern function scsi_ioctl [2022-11-25 22:37:14,737 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-11-25 22:37:14,739 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,740 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,744 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,744 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,745 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,761 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-11-25 22:37:14,764 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,768 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,778 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,779 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,779 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,780 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,852 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,852 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,853 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,853 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,855 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,856 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,859 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,861 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,862 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,863 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,863 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,864 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,866 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,881 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,882 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,907 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-11-25 22:37:14,908 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:14,909 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:14,909 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:14,910 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:14,910 WARN L623 FunctionHandler]: Unknown extern function scsi_device_get [2022-11-25 22:37:14,911 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:14,911 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:14,912 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-11-25 22:37:14,914 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,916 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,925 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,933 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,937 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,938 WARN L623 FunctionHandler]: Unknown extern function scsi_device_put [2022-11-25 22:37:14,954 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,955 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,956 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,956 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,958 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,958 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,965 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-11-25 22:37:14,965 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:14,966 WARN L623 FunctionHandler]: Unknown extern function scsi_device_put [2022-11-25 22:37:14,974 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-11-25 22:37:14,976 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 22:37:14,976 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:14,991 WARN L623 FunctionHandler]: Unknown extern function scsi_ioctl [2022-11-25 22:37:15,002 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,003 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,005 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,006 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,008 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-25 22:37:15,009 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,011 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,013 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,014 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,016 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,018 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,020 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,023 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,047 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-25 22:37:15,049 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-25 22:37:15,049 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-25 22:37:15,069 WARN L623 FunctionHandler]: Unknown extern function driver_create_file [2022-11-25 22:37:15,075 WARN L623 FunctionHandler]: Unknown extern function driver_remove_file [2022-11-25 22:37:15,080 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 22:37:15,087 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 22:37:15,094 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 22:37:15,100 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 22:37:15,105 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 22:37:15,113 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 22:37:15,122 WARN L623 FunctionHandler]: Unknown extern function __class_create [2022-11-25 22:37:15,124 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,130 WARN L623 FunctionHandler]: Unknown extern function device_destroy [2022-11-25 22:37:15,135 WARN L623 FunctionHandler]: Unknown extern function device_create [2022-11-25 22:37:15,136 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,137 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 22:37:15,138 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 22:37:15,138 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 22:37:15,139 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 22:37:15,139 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 22:37:15,140 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 22:37:15,144 WARN L623 FunctionHandler]: Unknown extern function class_destroy [2022-11-25 22:37:15,146 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-11-25 22:37:15,146 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,147 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-11-25 22:37:15,148 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:15,148 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,149 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:15,149 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,150 WARN L623 FunctionHandler]: Unknown extern function panic [2022-11-25 22:37:15,150 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:15,150 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,151 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:15,152 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,152 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:37:15,152 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 22:37:15,154 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-25 22:37:15,155 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-25 22:37:15,157 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 22:37:15,158 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:15,159 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-11-25 22:37:15,160 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:37:15,160 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-25 22:37:15,161 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-11-25 22:37:15,162 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-25 22:37:15,163 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:15,163 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:37:15,163 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:37:15,164 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:37:15,164 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:15,169 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,170 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,170 WARN L623 FunctionHandler]: Unknown extern function scsi_register_driver [2022-11-25 22:37:15,171 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-11-25 22:37:15,176 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-11-25 22:37:15,178 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:37:15,178 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:37:15,179 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-25 22:37:15,179 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:37:15,179 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:37:15,179 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,206 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 22:37:15,207 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 22:37:15,207 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value_probe [2022-11-25 22:37:15,207 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 22:37:15,208 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 22:37:15,208 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 22:37:15,208 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 22:37:15,209 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 22:37:15,209 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 22:37:15,209 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 22:37:15,210 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 22:37:15,210 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 22:37:15,210 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 22:37:15,211 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 22:37:15,211 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 22:37:15,212 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 22:37:15,212 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 22:37:15,212 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 22:37:15,213 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 22:37:15,213 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 22:37:15,213 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-11-25 22:37:15,214 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 22:37:15,214 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-11-25 22:37:15,214 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 22:37:15,215 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 22:37:15,215 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 22:37:15,215 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 22:37:15,216 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-11-25 22:37:15,216 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 22:37:15,216 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 22:37:15,217 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 22:37:15,217 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 22:37:15,217 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 22:37:15,222 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_578539b7-ae5d-4180-9c33-cbf5a3025f78/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[331724,331737] [2022-11-25 22:37:15,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:37:15,377 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:37:15,480 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:37:15,485 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 22:37:15,486 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-11-25 22:37:15,487 WARN L623 FunctionHandler]: Unknown extern function __register_chrdev [2022-11-25 22:37:15,488 WARN L623 FunctionHandler]: Unknown extern function __unregister_chrdev [2022-11-25 22:37:15,502 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 22:37:15,502 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 22:37:15,503 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 22:37:15,503 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 22:37:15,504 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 22:37:15,504 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 22:37:15,514 WARN L623 FunctionHandler]: Unknown extern function scsi_normalize_sense [2022-11-25 22:37:15,514 WARN L623 FunctionHandler]: Unknown extern function scsi_get_sense_info_fld [2022-11-25 22:37:15,515 WARN L623 FunctionHandler]: Unknown extern function scsi_sense_desc_find [2022-11-25 22:37:15,519 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,519 WARN L623 FunctionHandler]: Unknown extern function __scsi_print_sense [2022-11-25 22:37:15,522 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,522 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,523 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,525 WARN L623 FunctionHandler]: Unknown extern function complete [2022-11-25 22:37:15,569 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:37:15,570 WARN L623 FunctionHandler]: Unknown extern function blk_rq_unmap_user [2022-11-25 22:37:15,570 WARN L623 FunctionHandler]: Unknown extern function __blk_put_request [2022-11-25 22:37:15,574 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:37:15,574 WARN L623 FunctionHandler]: Unknown extern function blk_get_request [2022-11-25 22:37:15,576 WARN L623 FunctionHandler]: Unknown extern function sg_next [2022-11-25 22:37:15,576 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_user [2022-11-25 22:37:15,580 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:37:15,588 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_kern [2022-11-25 22:37:15,591 WARN L623 FunctionHandler]: Unknown extern function blk_execute_rq_nowait [2022-11-25 22:37:15,595 WARN L623 FunctionHandler]: Unknown extern function blk_put_request [2022-11-25 22:37:15,597 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,598 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,605 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-11-25 22:37:15,606 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-11-25 22:37:15,622 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,629 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:37:15,630 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:37:15,631 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,634 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,635 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-11-25 22:37:15,636 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 22:37:15,638 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 22:37:15,644 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 22:37:15,649 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,650 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 22:37:15,652 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-25 22:37:15,654 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,654 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,658 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,660 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,668 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,671 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,677 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,686 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-25 22:37:15,686 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,688 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,688 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:37:15,689 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,690 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:37:15,692 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-25 22:37:15,693 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,694 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:37:15,695 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,696 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:37:15,698 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-11-25 22:37:15,699 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-25 22:37:15,700 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,701 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,701 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-11-25 22:37:15,701 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-25 22:37:15,702 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,707 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,707 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,712 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,714 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,715 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,722 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,723 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,728 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,729 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,730 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,731 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,737 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,739 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,740 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-25 22:37:15,741 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,744 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,747 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,748 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,750 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-25 22:37:15,751 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-25 22:37:15,752 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-25 22:37:15,754 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:37:15,755 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,755 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,756 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-25 22:37:15,756 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,759 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,759 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,760 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,760 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,760 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,761 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,761 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,761 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,762 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,762 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,762 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,763 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,764 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,764 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,765 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,768 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,775 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,775 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,776 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,777 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,779 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,781 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,782 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,784 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,788 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,790 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,793 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,800 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,806 WARN L623 FunctionHandler]: Unknown extern function scsi_ioctl [2022-11-25 22:37:15,808 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-11-25 22:37:15,809 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,810 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,815 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,816 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,816 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,824 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-11-25 22:37:15,825 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,828 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,831 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,832 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,832 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,833 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,837 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,838 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,839 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,839 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,840 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,843 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,844 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,845 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,845 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,845 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,846 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,846 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,847 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,858 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,859 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,933 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-11-25 22:37:15,935 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:15,936 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:15,937 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:15,937 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:15,938 WARN L623 FunctionHandler]: Unknown extern function scsi_device_get [2022-11-25 22:37:15,938 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:15,938 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:15,939 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-11-25 22:37:15,940 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,942 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,956 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,961 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,964 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,965 WARN L623 FunctionHandler]: Unknown extern function scsi_device_put [2022-11-25 22:37:15,971 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,973 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,973 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,974 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,974 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,975 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,976 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-11-25 22:37:15,976 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:15,977 WARN L623 FunctionHandler]: Unknown extern function scsi_device_put [2022-11-25 22:37:15,979 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-11-25 22:37:15,980 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 22:37:15,981 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:15,998 WARN L623 FunctionHandler]: Unknown extern function scsi_ioctl [2022-11-25 22:37:16,008 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:16,010 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:16,011 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:16,012 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:16,014 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-25 22:37:16,015 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:16,017 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:16,018 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:16,020 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:16,021 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:16,022 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:16,024 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:16,026 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:16,040 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-25 22:37:16,041 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-25 22:37:16,041 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-25 22:37:16,044 WARN L623 FunctionHandler]: Unknown extern function driver_create_file [2022-11-25 22:37:16,044 WARN L623 FunctionHandler]: Unknown extern function driver_remove_file [2022-11-25 22:37:16,045 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 22:37:16,047 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 22:37:16,049 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 22:37:16,050 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 22:37:16,052 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 22:37:16,054 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 22:37:16,055 WARN L623 FunctionHandler]: Unknown extern function __class_create [2022-11-25 22:37:16,056 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:16,057 WARN L623 FunctionHandler]: Unknown extern function device_destroy [2022-11-25 22:37:16,057 WARN L623 FunctionHandler]: Unknown extern function device_create [2022-11-25 22:37:16,058 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:16,058 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 22:37:16,059 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 22:37:16,059 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 22:37:16,059 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 22:37:16,060 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 22:37:16,060 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-25 22:37:16,061 WARN L623 FunctionHandler]: Unknown extern function class_destroy [2022-11-25 22:37:16,062 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-11-25 22:37:16,063 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:16,063 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-11-25 22:37:16,064 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:16,064 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:16,065 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:16,065 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:16,066 WARN L623 FunctionHandler]: Unknown extern function panic [2022-11-25 22:37:16,066 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:16,066 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:16,067 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:16,068 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:16,068 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:37:16,068 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 22:37:16,070 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-25 22:37:16,071 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-25 22:37:16,074 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 22:37:16,074 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:16,075 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-11-25 22:37:16,076 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:37:16,076 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-25 22:37:16,077 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-11-25 22:37:16,078 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-25 22:37:16,079 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:16,079 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:37:16,080 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:37:16,080 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:37:16,080 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-25 22:37:16,081 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:16,081 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:16,082 WARN L623 FunctionHandler]: Unknown extern function scsi_register_driver [2022-11-25 22:37:16,083 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-11-25 22:37:16,084 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-11-25 22:37:16,085 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-25 22:37:16,086 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:37:16,086 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-25 22:37:16,086 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:37:16,086 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:37:16,087 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:37:16,088 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 22:37:16,089 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 22:37:16,089 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value_probe [2022-11-25 22:37:16,089 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 22:37:16,090 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 22:37:16,090 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 22:37:16,090 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 22:37:16,091 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 22:37:16,091 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 22:37:16,091 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-11-25 22:37:16,092 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 22:37:16,092 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 22:37:16,093 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 22:37:16,093 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 22:37:16,093 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-11-25 22:37:16,094 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 22:37:16,094 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 22:37:16,095 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 22:37:16,095 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-11-25 22:37:16,095 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 22:37:16,096 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-11-25 22:37:16,096 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 22:37:16,097 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-11-25 22:37:16,098 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 22:37:16,098 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 22:37:16,098 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 22:37:16,099 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-11-25 22:37:16,099 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-11-25 22:37:16,099 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 22:37:16,100 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 22:37:16,100 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 22:37:16,100 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 22:37:16,101 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 22:37:16,101 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_578539b7-ae5d-4180-9c33-cbf5a3025f78/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[331724,331737] [2022-11-25 22:37:16,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:37:16,236 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:37:16,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:16 WrapperNode [2022-11-25 22:37:16,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:37:16,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:37:16,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:37:16,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:37:16,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:16" (1/1) ... [2022-11-25 22:37:16,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:16" (1/1) ... [2022-11-25 22:37:16,716 INFO L138 Inliner]: procedures = 273, calls = 4082, calls flagged for inlining = 105, calls inlined = 96, statements flattened = 8941 [2022-11-25 22:37:16,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:37:16,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:37:16,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:37:16,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:37:16,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:16" (1/1) ... [2022-11-25 22:37:16,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:16" (1/1) ... [2022-11-25 22:37:16,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:16" (1/1) ... [2022-11-25 22:37:16,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:16" (1/1) ... [2022-11-25 22:37:17,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:16" (1/1) ... [2022-11-25 22:37:17,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:16" (1/1) ... [2022-11-25 22:37:17,157 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:16" (1/1) ... [2022-11-25 22:37:17,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:16" (1/1) ... [2022-11-25 22:37:17,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:37:17,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:37:17,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:37:17,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:37:17,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:16" (1/1) ... [2022-11-25 22:37:17,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:37:17,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:37:17,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:37:17,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:37:17,297 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-25 22:37:17,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-25 22:37:17,298 INFO L130 BoogieDeclarations]: Found specification of procedure osst_log_options [2022-11-25 22:37:17,298 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_log_options [2022-11-25 22:37:17,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-25 22:37:17,298 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-25 22:37:17,298 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-25 22:37:17,298 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-25 22:37:17,299 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-25 22:37:17,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 22:37:17,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 22:37:17,299 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_behind_check [2022-11-25 22:37:17,299 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_behind_check [2022-11-25 22:37:17,299 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-25 22:37:17,299 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-25 22:37:17,299 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2022-11-25 22:37:17,300 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2022-11-25 22:37:17,300 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-25 22:37:17,300 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-25 22:37:17,300 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock [2022-11-25 22:37:17,301 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock [2022-11-25 22:37:17,301 INFO L130 BoogieDeclarations]: Found specification of procedure osst_release_request [2022-11-25 22:37:17,301 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_release_request [2022-11-25 22:37:17,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 22:37:17,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 22:37:17,301 INFO L130 BoogieDeclarations]: Found specification of procedure osst_set_frame_position [2022-11-25 22:37:17,301 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_set_frame_position [2022-11-25 22:37:17,302 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_header [2022-11-25 22:37:17,302 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_header [2022-11-25 22:37:17,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_osst_tape [2022-11-25 22:37:17,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_osst_tape [2022-11-25 22:37:17,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_osst_tape [2022-11-25 22:37:17,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_osst_tape [2022-11-25 22:37:17,302 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-25 22:37:17,302 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-25 22:37:17,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-25 22:37:17,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-25 22:37:17,303 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-11-25 22:37:17,303 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-11-25 22:37:17,303 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_frame [2022-11-25 22:37:17,303 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_frame [2022-11-25 22:37:17,303 INFO L130 BoogieDeclarations]: Found specification of procedure tape_name [2022-11-25 22:37:17,303 INFO L138 BoogieDeclarations]: Found implementation of procedure tape_name [2022-11-25 22:37:17,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-11-25 22:37:17,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-11-25 22:37:17,304 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_put [2022-11-25 22:37:17,304 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_put [2022-11-25 22:37:17,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 22:37:17,304 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 22:37:17,304 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_write_buffer [2022-11-25 22:37:17,305 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_write_buffer [2022-11-25 22:37:17,305 INFO L130 BoogieDeclarations]: Found specification of procedure osst_initiate_read [2022-11-25 22:37:17,305 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_initiate_read [2022-11-25 22:37:17,305 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-25 22:37:17,305 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-25 22:37:17,305 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_ioctl [2022-11-25 22:37:17,305 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_ioctl [2022-11-25 22:37:17,306 INFO L130 BoogieDeclarations]: Found specification of procedure osst_seek_logical_blk [2022-11-25 22:37:17,306 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_seek_logical_blk [2022-11-25 22:37:17,306 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_osst_int_mutex [2022-11-25 22:37:17,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_osst_int_mutex [2022-11-25 22:37:17,306 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_trailer [2022-11-25 22:37:17,306 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_trailer [2022-11-25 22:37:17,306 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_drive_buffer [2022-11-25 22:37:17,306 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_drive_buffer [2022-11-25 22:37:17,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:37:17,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_osst_int_mutex [2022-11-25 22:37:17,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_osst_int_mutex [2022-11-25 22:37:17,307 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-25 22:37:17,307 INFO L130 BoogieDeclarations]: Found specification of procedure osst_int_ioctl [2022-11-25 22:37:17,307 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_int_ioctl [2022-11-25 22:37:17,307 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-11-25 22:37:17,307 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-11-25 22:37:17,308 INFO L130 BoogieDeclarations]: Found specification of procedure do_door_lock [2022-11-25 22:37:17,308 INFO L138 BoogieDeclarations]: Found implementation of procedure do_door_lock [2022-11-25 22:37:17,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:37:17,308 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_to_buffer [2022-11-25 22:37:17,308 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_to_buffer [2022-11-25 22:37:17,308 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_analyze_headers [2022-11-25 22:37:17,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_analyze_headers [2022-11-25 22:37:17,308 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-11-25 22:37:17,309 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-11-25 22:37:17,309 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_logical_frame [2022-11-25 22:37:17,309 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_logical_frame [2022-11-25 22:37:17,309 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-11-25 22:37:17,309 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-11-25 22:37:17,309 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2022-11-25 22:37:17,309 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2022-11-25 22:37:17,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:37:17,310 INFO L130 BoogieDeclarations]: Found specification of procedure osst_position_tape_and_confirm [2022-11-25 22:37:17,310 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_position_tape_and_confirm [2022-11-25 22:37:17,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 22:37:17,310 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-25 22:37:17,310 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-25 22:37:17,310 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-25 22:37:17,310 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-25 22:37:17,311 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-25 22:37:17,311 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-25 22:37:17,311 INFO L130 BoogieDeclarations]: Found specification of procedure osst_verify_frame [2022-11-25 22:37:17,311 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_verify_frame [2022-11-25 22:37:17,311 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-25 22:37:17,311 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-25 22:37:17,311 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_ready [2022-11-25 22:37:17,311 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_ready [2022-11-25 22:37:17,312 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reset_header [2022-11-25 22:37:17,312 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reset_header [2022-11-25 22:37:17,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-11-25 22:37:17,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-11-25 22:37:17,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 22:37:17,312 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-25 22:37:17,312 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-25 22:37:17,313 INFO L130 BoogieDeclarations]: Found specification of procedure osst_do_scsi [2022-11-25 22:37:17,313 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_do_scsi [2022-11-25 22:37:17,313 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-11-25 22:37:17,313 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-11-25 22:37:17,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 22:37:17,313 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2022-11-25 22:37:17,314 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2022-11-25 22:37:17,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:37:17,314 INFO L130 BoogieDeclarations]: Found specification of procedure osst_chk_result [2022-11-25 22:37:17,314 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_chk_result [2022-11-25 22:37:17,315 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_add [2022-11-25 22:37:17,315 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_add [2022-11-25 22:37:17,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 22:37:17,315 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 22:37:17,315 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_backward [2022-11-25 22:37:17,315 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_backward [2022-11-25 22:37:17,315 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_back_buffer_and_rewrite [2022-11-25 22:37:17,315 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_back_buffer_and_rewrite [2022-11-25 22:37:17,316 INFO L130 BoogieDeclarations]: Found specification of procedure cross_eof [2022-11-25 22:37:17,316 INFO L138 BoogieDeclarations]: Found implementation of procedure cross_eof [2022-11-25 22:37:17,316 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_cleanup [2022-11-25 22:37:17,316 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_cleanup [2022-11-25 22:37:17,316 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 22:37:17,316 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 22:37:17,316 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_buffer [2022-11-25 22:37:17,316 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_buffer [2022-11-25 22:37:17,317 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-25 22:37:17,317 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-25 22:37:17,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:37:17,317 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-25 22:37:17,317 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-25 22:37:17,317 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reposition_and_retry [2022-11-25 22:37:17,317 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reposition_and_retry [2022-11-25 22:37:17,317 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_filemark [2022-11-25 22:37:17,318 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_filemark [2022-11-25 22:37:17,318 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_destroy [2022-11-25 22:37:17,318 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_destroy [2022-11-25 22:37:17,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 22:37:17,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 22:37:17,318 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-11-25 22:37:17,318 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-11-25 22:37:17,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:37:17,319 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-11-25 22:37:17,319 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-11-25 22:37:17,319 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock [2022-11-25 22:37:17,319 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock [2022-11-25 22:37:17,319 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-25 22:37:17,319 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-25 22:37:17,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:37:17,319 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_write_header [2022-11-25 22:37:17,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_write_header [2022-11-25 22:37:17,320 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_frame [2022-11-25 22:37:17,320 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_frame [2022-11-25 22:37:17,320 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-11-25 22:37:17,320 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-11-25 22:37:17,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:37:17,320 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-25 22:37:17,320 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_frame_position [2022-11-25 22:37:17,321 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_frame_position [2022-11-25 22:37:17,321 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_buffer [2022-11-25 22:37:17,321 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_buffer [2022-11-25 22:37:17,321 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_from_buffer [2022-11-25 22:37:17,321 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_from_buffer [2022-11-25 22:37:17,321 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-25 22:37:17,321 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-25 22:37:17,321 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-11-25 22:37:17,322 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-11-25 22:37:17,322 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_buffer [2022-11-25 22:37:17,322 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_buffer [2022-11-25 22:37:17,322 INFO L130 BoogieDeclarations]: Found specification of procedure osst_init_aux [2022-11-25 22:37:17,322 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_init_aux [2022-11-25 22:37:17,322 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_error_recovery [2022-11-25 22:37:17,322 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_error_recovery [2022-11-25 22:37:17,322 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_eod [2022-11-25 22:37:17,323 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_eod [2022-11-25 22:37:17,323 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-25 22:37:17,323 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-25 22:37:17,323 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_forward_slow [2022-11-25 22:37:17,323 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_forward_slow [2022-11-25 22:37:17,323 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-11-25 22:37:17,323 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-11-25 22:37:17,323 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2022-11-25 22:37:17,324 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2022-11-25 22:37:17,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:37:17,324 INFO L130 BoogieDeclarations]: Found specification of procedure osst_recover_wait_frame [2022-11-25 22:37:17,324 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_recover_wait_frame [2022-11-25 22:37:17,324 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_frame [2022-11-25 22:37:17,324 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_frame [2022-11-25 22:37:17,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:37:17,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:37:17,325 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-25 22:37:17,325 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-25 22:37:18,603 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:37:18,612 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:37:34,529 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:37:39,810 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:37:39,811 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-25 22:37:39,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:37:39 BoogieIcfgContainer [2022-11-25 22:37:39,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:37:39,818 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:37:39,819 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:37:39,822 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:37:39,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:37:12" (1/3) ... [2022-11-25 22:37:39,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35cca093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:37:39, skipping insertion in model container [2022-11-25 22:37:39,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:16" (2/3) ... [2022-11-25 22:37:39,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35cca093 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:37:39, skipping insertion in model container [2022-11-25 22:37:39,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:37:39" (3/3) ... [2022-11-25 22:37:39,825 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-11-25 22:37:39,847 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:37:39,847 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:37:39,938 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:37:39,945 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;@35c82010, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:37:39,945 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 22:37:39,957 INFO L276 IsEmpty]: Start isEmpty. Operand has 2158 states, 1461 states have (on average 1.4004106776180698) internal successors, (2046), 1487 states have internal predecessors, (2046), 603 states have call successors, (603), 92 states have call predecessors, (603), 92 states have return successors, (603), 600 states have call predecessors, (603), 603 states have call successors, (603) [2022-11-25 22:37:39,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-25 22:37:39,966 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:37:39,967 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:37:39,967 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:37:39,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:37:39,973 INFO L85 PathProgramCache]: Analyzing trace with hash 18015385, now seen corresponding path program 1 times [2022-11-25 22:37:39,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:37:39,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9864634] [2022-11-25 22:37:39,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:39,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:37:40,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:37:40,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:37:40,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:37:40,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9864634] [2022-11-25 22:37:40,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9864634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:37:40,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:37:40,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:37:40,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137282106] [2022-11-25 22:37:40,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:37:40,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:37:40,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:37:40,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:37:40,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:37:40,963 INFO L87 Difference]: Start difference. First operand has 2158 states, 1461 states have (on average 1.4004106776180698) internal successors, (2046), 1487 states have internal predecessors, (2046), 603 states have call successors, (603), 92 states have call predecessors, (603), 92 states have return successors, (603), 600 states have call predecessors, (603), 603 states have call successors, (603) Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 22:37:45,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:37:49,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:37:54,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:37:56,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:37:58,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:38:02,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:02,578 INFO L93 Difference]: Finished difference Result 6492 states and 10176 transitions. [2022-11-25 22:38:02,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:38:02,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 26 [2022-11-25 22:38:02,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:02,643 INFO L225 Difference]: With dead ends: 6492 [2022-11-25 22:38:02,644 INFO L226 Difference]: Without dead ends: 4340 [2022-11-25 22:38:02,669 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:38:02,672 INFO L413 NwaCegarLoop]: 4525 mSDtfsCounter, 2242 mSDsluCounter, 7347 mSDsCounter, 0 mSdLazyCounter, 1319 mSolverCounterSat, 424 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2667 SdHoareTripleChecker+Valid, 11872 SdHoareTripleChecker+Invalid, 1747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 424 IncrementalHoareTripleChecker+Valid, 1319 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:02,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2667 Valid, 11872 Invalid, 1747 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [424 Valid, 1319 Invalid, 4 Unknown, 0 Unchecked, 21.1s Time] [2022-11-25 22:38:02,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4340 states. [2022-11-25 22:38:02,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4340 to 2152. [2022-11-25 22:38:02,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2152 states, 1457 states have (on average 1.39601921757035) internal successors, (2034), 1481 states have internal predecessors, (2034), 603 states have call successors, (603), 92 states have call predecessors, (603), 91 states have return successors, (595), 592 states have call predecessors, (595), 595 states have call successors, (595) [2022-11-25 22:38:02,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2152 states to 2152 states and 3232 transitions. [2022-11-25 22:38:02,989 INFO L78 Accepts]: Start accepts. Automaton has 2152 states and 3232 transitions. Word has length 26 [2022-11-25 22:38:02,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:02,990 INFO L495 AbstractCegarLoop]: Abstraction has 2152 states and 3232 transitions. [2022-11-25 22:38:02,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 22:38:02,991 INFO L276 IsEmpty]: Start isEmpty. Operand 2152 states and 3232 transitions. [2022-11-25 22:38:02,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-25 22:38:02,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:02,994 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:38:02,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:38:02,994 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:38:02,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:02,995 INFO L85 PathProgramCache]: Analyzing trace with hash -839968500, now seen corresponding path program 1 times [2022-11-25 22:38:02,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:02,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982866215] [2022-11-25 22:38:02,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:02,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:03,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:38:03,323 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:38:03,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982866215] [2022-11-25 22:38:03,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982866215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:38:03,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:38:03,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:38:03,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736562860] [2022-11-25 22:38:03,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:38:03,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:38:03,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:38:03,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:38:03,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:38:03,328 INFO L87 Difference]: Start difference. First operand 2152 states and 3232 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-25 22:38:06,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:38:10,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:38:14,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:38:17,275 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 [] [2022-11-25 22:38:20,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:20,268 INFO L93 Difference]: Finished difference Result 4226 states and 6341 transitions. [2022-11-25 22:38:20,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:38:20,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 30 [2022-11-25 22:38:20,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:20,299 INFO L225 Difference]: With dead ends: 4226 [2022-11-25 22:38:20,299 INFO L226 Difference]: Without dead ends: 4223 [2022-11-25 22:38:20,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:38:20,304 INFO L413 NwaCegarLoop]: 3453 mSDtfsCounter, 3130 mSDsluCounter, 2844 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3130 SdHoareTripleChecker+Valid, 6297 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:20,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3130 Valid, 6297 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 685 Invalid, 4 Unknown, 0 Unchecked, 16.7s Time] [2022-11-25 22:38:20,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4223 states. [2022-11-25 22:38:20,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4223 to 4217. [2022-11-25 22:38:20,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4217 states, 2864 states have (on average 1.395600558659218) internal successors, (3997), 2900 states have internal predecessors, (3997), 1172 states have call successors, (1172), 181 states have call predecessors, (1172), 180 states have return successors, (1164), 1160 states have call predecessors, (1164), 1164 states have call successors, (1164) [2022-11-25 22:38:20,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4217 states to 4217 states and 6333 transitions. [2022-11-25 22:38:20,508 INFO L78 Accepts]: Start accepts. Automaton has 4217 states and 6333 transitions. Word has length 30 [2022-11-25 22:38:20,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:20,508 INFO L495 AbstractCegarLoop]: Abstraction has 4217 states and 6333 transitions. [2022-11-25 22:38:20,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-25 22:38:20,509 INFO L276 IsEmpty]: Start isEmpty. Operand 4217 states and 6333 transitions. [2022-11-25 22:38:20,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-25 22:38:20,510 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:20,510 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:38:20,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:38:20,511 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:38:20,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:20,511 INFO L85 PathProgramCache]: Analyzing trace with hash -270343353, now seen corresponding path program 1 times [2022-11-25 22:38:20,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:20,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327199817] [2022-11-25 22:38:20,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:20,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:20,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:20,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:38:20,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:38:20,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327199817] [2022-11-25 22:38:20,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327199817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:38:20,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:38:20,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:38:20,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455534752] [2022-11-25 22:38:20,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:38:20,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:38:20,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:38:20,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:38:20,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:38:20,795 INFO L87 Difference]: Start difference. First operand 4217 states and 6333 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-25 22:38:24,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:38:28,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:38:30,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:38:36,262 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 [] [2022-11-25 22:38:38,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:38,108 INFO L93 Difference]: Finished difference Result 7109 states and 10575 transitions. [2022-11-25 22:38:38,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:38:38,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 31 [2022-11-25 22:38:38,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:38,174 INFO L225 Difference]: With dead ends: 7109 [2022-11-25 22:38:38,174 INFO L226 Difference]: Without dead ends: 7105 [2022-11-25 22:38:38,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:38:38,185 INFO L413 NwaCegarLoop]: 3705 mSDtfsCounter, 2174 mSDsluCounter, 2817 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2174 SdHoareTripleChecker+Valid, 6522 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:38,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2174 Valid, 6522 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 746 Invalid, 4 Unknown, 0 Unchecked, 17.0s Time] [2022-11-25 22:38:38,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7105 states. [2022-11-25 22:38:38,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7105 to 7100. [2022-11-25 22:38:38,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7100 states, 4763 states have (on average 1.377493176569389) internal successors, (6561), 4825 states have internal predecessors, (6561), 2006 states have call successors, (2006), 333 states have call predecessors, (2006), 330 states have return successors, (1998), 1986 states have call predecessors, (1998), 1998 states have call successors, (1998) [2022-11-25 22:38:38,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7100 states to 7100 states and 10565 transitions. [2022-11-25 22:38:38,591 INFO L78 Accepts]: Start accepts. Automaton has 7100 states and 10565 transitions. Word has length 31 [2022-11-25 22:38:38,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:38,592 INFO L495 AbstractCegarLoop]: Abstraction has 7100 states and 10565 transitions. [2022-11-25 22:38:38,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-25 22:38:38,593 INFO L276 IsEmpty]: Start isEmpty. Operand 7100 states and 10565 transitions. [2022-11-25 22:38:38,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-25 22:38:38,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:38,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:38:38,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 22:38:38,596 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:38:38,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:38,598 INFO L85 PathProgramCache]: Analyzing trace with hash 208171887, now seen corresponding path program 1 times [2022-11-25 22:38:38,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:38,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191281928] [2022-11-25 22:38:38,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:38,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:38,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:38,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:38:38,967 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:38:38,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191281928] [2022-11-25 22:38:38,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191281928] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:38:38,968 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:38:38,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:38:38,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913671298] [2022-11-25 22:38:38,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:38:38,969 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:38:38,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:38:38,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:38:38,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:38:38,970 INFO L87 Difference]: Start difference. First operand 7100 states and 10565 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-25 22:38:41,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:38:45,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:38:48,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:38:51,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:38:54,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:38:54,754 INFO L93 Difference]: Finished difference Result 14085 states and 20957 transitions. [2022-11-25 22:38:54,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:38:54,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 32 [2022-11-25 22:38:54,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:38:54,886 INFO L225 Difference]: With dead ends: 14085 [2022-11-25 22:38:54,886 INFO L226 Difference]: Without dead ends: 14082 [2022-11-25 22:38:54,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:38:54,905 INFO L413 NwaCegarLoop]: 3453 mSDtfsCounter, 3106 mSDsluCounter, 2850 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3106 SdHoareTripleChecker+Valid, 6303 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:38:54,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3106 Valid, 6303 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 686 Invalid, 3 Unknown, 0 Unchecked, 15.3s Time] [2022-11-25 22:38:54,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14082 states. [2022-11-25 22:38:55,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14082 to 14074. [2022-11-25 22:38:55,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14074 states, 9448 states have (on average 1.3773285351397122) internal successors, (13013), 9561 states have internal predecessors, (13013), 3971 states have call successors, (3971), 659 states have call predecessors, (3971), 654 states have return successors, (3963), 3940 states have call predecessors, (3963), 3963 states have call successors, (3963) [2022-11-25 22:38:55,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14074 states to 14074 states and 20947 transitions. [2022-11-25 22:38:55,902 INFO L78 Accepts]: Start accepts. Automaton has 14074 states and 20947 transitions. Word has length 32 [2022-11-25 22:38:55,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:38:55,902 INFO L495 AbstractCegarLoop]: Abstraction has 14074 states and 20947 transitions. [2022-11-25 22:38:55,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-25 22:38:55,902 INFO L276 IsEmpty]: Start isEmpty. Operand 14074 states and 20947 transitions. [2022-11-25 22:38:55,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 22:38:55,903 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:38:55,904 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:38:55,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 22:38:55,904 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:38:55,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:38:55,905 INFO L85 PathProgramCache]: Analyzing trace with hash -2137719990, now seen corresponding path program 1 times [2022-11-25 22:38:55,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:38:55,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700843181] [2022-11-25 22:38:55,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:38:55,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:38:55,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:38:56,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:38:56,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:38:56,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700843181] [2022-11-25 22:38:56,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700843181] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:38:56,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:38:56,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:38:56,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219519056] [2022-11-25 22:38:56,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:38:56,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:38:56,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:38:56,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:38:56,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:38:56,104 INFO L87 Difference]: Start difference. First operand 14074 states and 20947 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-25 22:38:58,938 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 [] [2022-11-25 22:39:01,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:39:02,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:39:05,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:39:09,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:39:11,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:39:11,422 INFO L93 Difference]: Finished difference Result 21937 states and 32188 transitions. [2022-11-25 22:39:11,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:39:11,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 33 [2022-11-25 22:39:11,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:39:11,692 INFO L225 Difference]: With dead ends: 21937 [2022-11-25 22:39:11,692 INFO L226 Difference]: Without dead ends: 21906 [2022-11-25 22:39:11,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:39:11,711 INFO L413 NwaCegarLoop]: 3249 mSDtfsCounter, 1994 mSDsluCounter, 2831 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1994 SdHoareTripleChecker+Valid, 6080 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:39:11,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1994 Valid, 6080 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 685 Invalid, 4 Unknown, 0 Unchecked, 14.8s Time] [2022-11-25 22:39:11,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21906 states. [2022-11-25 22:39:12,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21906 to 21899. [2022-11-25 22:39:12,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21899 states, 14591 states have (on average 1.3604961962853814) internal successors, (19851), 14774 states have internal predecessors, (19851), 6139 states have call successors, (6139), 1181 states have call predecessors, (6139), 1168 states have return successors, (6131), 6088 states have call predecessors, (6131), 6131 states have call successors, (6131) [2022-11-25 22:39:12,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21899 states to 21899 states and 32121 transitions. [2022-11-25 22:39:12,867 INFO L78 Accepts]: Start accepts. Automaton has 21899 states and 32121 transitions. Word has length 33 [2022-11-25 22:39:12,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:39:12,869 INFO L495 AbstractCegarLoop]: Abstraction has 21899 states and 32121 transitions. [2022-11-25 22:39:12,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-25 22:39:12,869 INFO L276 IsEmpty]: Start isEmpty. Operand 21899 states and 32121 transitions. [2022-11-25 22:39:12,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-25 22:39:12,881 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:39:12,881 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 22:39:12,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 22:39:12,882 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:39:12,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:39:12,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1426918172, now seen corresponding path program 1 times [2022-11-25 22:39:12,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:39:12,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966939008] [2022-11-25 22:39:12,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:12,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:39:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:13,383 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 22:39:13,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:39:13,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966939008] [2022-11-25 22:39:13,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966939008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:39:13,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:39:13,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:39:13,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766375077] [2022-11-25 22:39:13,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:39:13,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:39:13,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:39:13,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:39:13,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:39:13,386 INFO L87 Difference]: Start difference. First operand 21899 states and 32121 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 22:39:16,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:39:18,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:39:24,256 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 [] [2022-11-25 22:39:26,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:39:26,069 INFO L93 Difference]: Finished difference Result 24907 states and 36327 transitions. [2022-11-25 22:39:26,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:39:26,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 67 [2022-11-25 22:39:26,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:39:26,257 INFO L225 Difference]: With dead ends: 24907 [2022-11-25 22:39:26,257 INFO L226 Difference]: Without dead ends: 24904 [2022-11-25 22:39:26,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:39:26,294 INFO L413 NwaCegarLoop]: 4052 mSDtfsCounter, 2398 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2398 SdHoareTripleChecker+Valid, 5955 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:39:26,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2398 Valid, 5955 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 717 Invalid, 3 Unknown, 0 Unchecked, 12.1s Time] [2022-11-25 22:39:26,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24904 states. [2022-11-25 22:39:27,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24904 to 24900. [2022-11-25 22:39:27,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24900 states, 16530 states have (on average 1.3536600120992135) internal successors, (22376), 16739 states have internal predecessors, (22376), 6973 states have call successors, (6973), 1412 states have call predecessors, (6973), 1396 states have return successors, (6965), 6917 states have call predecessors, (6965), 6965 states have call successors, (6965) [2022-11-25 22:39:27,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24900 states to 24900 states and 36314 transitions. [2022-11-25 22:39:27,666 INFO L78 Accepts]: Start accepts. Automaton has 24900 states and 36314 transitions. Word has length 67 [2022-11-25 22:39:27,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:39:27,666 INFO L495 AbstractCegarLoop]: Abstraction has 24900 states and 36314 transitions. [2022-11-25 22:39:27,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 22:39:27,667 INFO L276 IsEmpty]: Start isEmpty. Operand 24900 states and 36314 transitions. [2022-11-25 22:39:27,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-11-25 22:39:27,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:39:27,671 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:39:27,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 22:39:27,672 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:39:27,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:39:27,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1892735874, now seen corresponding path program 1 times [2022-11-25 22:39:27,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:39:27,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188486368] [2022-11-25 22:39:27,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:27,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:39:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:27,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:39:27,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:39:27,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188486368] [2022-11-25 22:39:27,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188486368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:39:27,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:39:27,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:39:27,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087248322] [2022-11-25 22:39:27,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:39:27,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:39:27,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:39:27,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:39:27,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:39:27,960 INFO L87 Difference]: Start difference. First operand 24900 states and 36314 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-25 22:39:30,626 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 [] [2022-11-25 22:39:33,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:39:36,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:39:40,863 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 [] [2022-11-25 22:39:41,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:39:41,992 INFO L93 Difference]: Finished difference Result 52249 states and 76649 transitions. [2022-11-25 22:39:41,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:39:41,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 65 [2022-11-25 22:39:41,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:39:42,167 INFO L225 Difference]: With dead ends: 52249 [2022-11-25 22:39:42,167 INFO L226 Difference]: Without dead ends: 27384 [2022-11-25 22:39:42,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:39:42,360 INFO L413 NwaCegarLoop]: 2968 mSDtfsCounter, 520 mSDsluCounter, 2625 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 6 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 5593 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:39:42,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 5593 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 666 Invalid, 4 Unknown, 0 Unchecked, 13.1s Time] [2022-11-25 22:39:42,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27384 states. [2022-11-25 22:39:44,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27384 to 27108. [2022-11-25 22:39:44,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27108 states, 18126 states have (on average 1.3643385192541102) internal successors, (24730), 18359 states have internal predecessors, (24730), 7585 states have call successors, (7585), 1412 states have call predecessors, (7585), 1396 states have return successors, (7577), 7521 states have call predecessors, (7577), 7577 states have call successors, (7577) [2022-11-25 22:39:44,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27108 states to 27108 states and 39892 transitions. [2022-11-25 22:39:44,254 INFO L78 Accepts]: Start accepts. Automaton has 27108 states and 39892 transitions. Word has length 65 [2022-11-25 22:39:44,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:39:44,257 INFO L495 AbstractCegarLoop]: Abstraction has 27108 states and 39892 transitions. [2022-11-25 22:39:44,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-25 22:39:44,257 INFO L276 IsEmpty]: Start isEmpty. Operand 27108 states and 39892 transitions. [2022-11-25 22:39:44,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-25 22:39:44,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:39:44,262 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:39:44,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 22:39:44,262 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:39:44,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:39:44,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1597609509, now seen corresponding path program 1 times [2022-11-25 22:39:44,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:39:44,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031849804] [2022-11-25 22:39:44,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:39:44,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:39:44,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:39:45,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:39:45,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:39:45,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031849804] [2022-11-25 22:39:45,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031849804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:39:45,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:39:45,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 22:39:45,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153317628] [2022-11-25 22:39:45,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:39:45,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:39:45,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:39:45,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:39:45,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:39:45,035 INFO L87 Difference]: Start difference. First operand 27108 states and 39892 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 22:39:48,906 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 [] [2022-11-25 22:39:53,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:39:56,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:40:04,351 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 [] [2022-11-25 22:40:09,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:40:09,469 INFO L93 Difference]: Finished difference Result 31373 states and 46299 transitions. [2022-11-25 22:40:09,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:40:09,470 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 76 [2022-11-25 22:40:09,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:40:09,614 INFO L225 Difference]: With dead ends: 31373 [2022-11-25 22:40:09,615 INFO L226 Difference]: Without dead ends: 31370 [2022-11-25 22:40:09,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:40:09,632 INFO L413 NwaCegarLoop]: 4542 mSDtfsCounter, 4512 mSDsluCounter, 7691 mSDsCounter, 0 mSdLazyCounter, 2162 mSolverCounterSat, 1359 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4642 SdHoareTripleChecker+Valid, 12233 SdHoareTripleChecker+Invalid, 3524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1359 IncrementalHoareTripleChecker+Valid, 2162 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:40:09,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4642 Valid, 12233 Invalid, 3524 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1359 Valid, 2162 Invalid, 3 Unknown, 0 Unchecked, 23.1s Time] [2022-11-25 22:40:09,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31370 states. [2022-11-25 22:40:11,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31370 to 29312. [2022-11-25 22:40:11,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29312 states, 19530 states have (on average 1.359651817716334) internal successors, (26554), 19791 states have internal predecessors, (26554), 8217 states have call successors, (8217), 1580 states have call predecessors, (8217), 1564 states have return successors, (8209), 8149 states have call predecessors, (8209), 8209 states have call successors, (8209) [2022-11-25 22:40:11,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29312 states to 29312 states and 42980 transitions. [2022-11-25 22:40:11,334 INFO L78 Accepts]: Start accepts. Automaton has 29312 states and 42980 transitions. Word has length 76 [2022-11-25 22:40:11,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:40:11,335 INFO L495 AbstractCegarLoop]: Abstraction has 29312 states and 42980 transitions. [2022-11-25 22:40:11,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 22:40:11,335 INFO L276 IsEmpty]: Start isEmpty. Operand 29312 states and 42980 transitions. [2022-11-25 22:40:11,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-25 22:40:11,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:40:11,351 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:40:11,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 22:40:11,352 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:40:11,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:40:11,352 INFO L85 PathProgramCache]: Analyzing trace with hash 142713359, now seen corresponding path program 1 times [2022-11-25 22:40:11,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:40:11,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642813121] [2022-11-25 22:40:11,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:40:11,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:40:11,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:40:12,908 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 22:40:12,908 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:40:12,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642813121] [2022-11-25 22:40:12,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642813121] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:40:12,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:40:12,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 22:40:12,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063266117] [2022-11-25 22:40:12,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:40:12,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 22:40:12,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:40:12,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 22:40:12,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:40:12,911 INFO L87 Difference]: Start difference. First operand 29312 states and 42980 transitions. Second operand has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 22:40:17,787 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 [] [2022-11-25 22:40:21,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:40:24,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:40:28,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:40:47,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:40:47,763 INFO L93 Difference]: Finished difference Result 37930 states and 55525 transitions. [2022-11-25 22:40:47,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 22:40:47,763 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 95 [2022-11-25 22:40:47,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:40:47,987 INFO L225 Difference]: With dead ends: 37930 [2022-11-25 22:40:47,987 INFO L226 Difference]: Without dead ends: 37895 [2022-11-25 22:40:48,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-25 22:40:48,015 INFO L413 NwaCegarLoop]: 1075 mSDtfsCounter, 7546 mSDsluCounter, 2131 mSDsCounter, 0 mSdLazyCounter, 7763 mSolverCounterSat, 4037 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8078 SdHoareTripleChecker+Valid, 3206 SdHoareTripleChecker+Invalid, 11803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4037 IncrementalHoareTripleChecker+Valid, 7763 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:40:48,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8078 Valid, 3206 Invalid, 11803 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4037 Valid, 7763 Invalid, 3 Unknown, 0 Unchecked, 33.0s Time] [2022-11-25 22:40:48,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37895 states. [2022-11-25 22:40:49,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37895 to 37769. [2022-11-25 22:40:49,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37769 states, 25088 states have (on average 1.3564652423469388) internal successors, (34031), 25431 states have internal predecessors, (34031), 10643 states have call successors, (10643), 2053 states have call predecessors, (10643), 2037 states have return successors, (10635), 10556 states have call predecessors, (10635), 10635 states have call successors, (10635) [2022-11-25 22:40:50,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37769 states to 37769 states and 55309 transitions. [2022-11-25 22:40:50,395 INFO L78 Accepts]: Start accepts. Automaton has 37769 states and 55309 transitions. Word has length 95 [2022-11-25 22:40:50,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:40:50,395 INFO L495 AbstractCegarLoop]: Abstraction has 37769 states and 55309 transitions. [2022-11-25 22:40:50,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 22:40:50,396 INFO L276 IsEmpty]: Start isEmpty. Operand 37769 states and 55309 transitions. [2022-11-25 22:40:50,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-25 22:40:50,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:40:50,409 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:40:50,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 22:40:50,410 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:40:50,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:40:50,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1125166746, now seen corresponding path program 1 times [2022-11-25 22:40:50,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:40:50,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685378429] [2022-11-25 22:40:50,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:40:50,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:40:50,802 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:40:50,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1870174199] [2022-11-25 22:40:50,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:40:50,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:40:50,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:40:50,807 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:40:50,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:40:52,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:40:52,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 3188 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:40:52,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:40:52,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:40:52,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:40:52,791 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:40:52,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685378429] [2022-11-25 22:40:52,791 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:40:52,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870174199] [2022-11-25 22:40:52,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870174199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:40:52,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:40:52,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:40:52,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708818828] [2022-11-25 22:40:52,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:40:52,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:40:52,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:40:52,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:40:52,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:40:52,794 INFO L87 Difference]: Start difference. First operand 37769 states and 55309 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-25 22:40:56,176 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 [] [2022-11-25 22:40:59,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:41:02,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:41:05,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:41:08,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:41:14,493 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 [] [2022-11-25 22:41:20,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:20,055 INFO L93 Difference]: Finished difference Result 80398 states and 118481 transitions. [2022-11-25 22:41:20,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:41:20,058 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 95 [2022-11-25 22:41:20,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:20,434 INFO L225 Difference]: With dead ends: 80398 [2022-11-25 22:41:20,434 INFO L226 Difference]: Without dead ends: 42664 [2022-11-25 22:41:20,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:41:20,671 INFO L413 NwaCegarLoop]: 3689 mSDtfsCounter, 558 mSDsluCounter, 10396 mSDsCounter, 0 mSdLazyCounter, 1687 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 14085 SdHoareTripleChecker+Invalid, 1691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1687 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:20,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 14085 Invalid, 1691 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1687 Invalid, 4 Unknown, 0 Unchecked, 25.4s Time] [2022-11-25 22:41:20,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42664 states. [2022-11-25 22:41:23,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42664 to 37793. [2022-11-25 22:41:23,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37793 states, 25108 states have (on average 1.3561812967978333) internal successors, (34051), 25447 states have internal predecessors, (34051), 10643 states have call successors, (10643), 2053 states have call predecessors, (10643), 2041 states have return successors, (10651), 10564 states have call predecessors, (10651), 10635 states have call successors, (10651) [2022-11-25 22:41:23,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37793 states to 37793 states and 55345 transitions. [2022-11-25 22:41:23,941 INFO L78 Accepts]: Start accepts. Automaton has 37793 states and 55345 transitions. Word has length 95 [2022-11-25 22:41:23,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:23,944 INFO L495 AbstractCegarLoop]: Abstraction has 37793 states and 55345 transitions. [2022-11-25 22:41:23,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-25 22:41:23,944 INFO L276 IsEmpty]: Start isEmpty. Operand 37793 states and 55345 transitions. [2022-11-25 22:41:23,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-11-25 22:41:23,961 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:23,961 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:23,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:41:24,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 22:41:24,186 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:41:24,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:24,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1512899635, now seen corresponding path program 1 times [2022-11-25 22:41:24,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:41:24,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658173177] [2022-11-25 22:41:24,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:24,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:41:24,367 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:41:24,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [71393250] [2022-11-25 22:41:24,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:24,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:41:24,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:41:24,369 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:41:24,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:41:26,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:26,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 3192 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:41:26,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:41:26,562 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:41:26,562 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:41:26,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:41:26,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658173177] [2022-11-25 22:41:26,563 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:41:26,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71393250] [2022-11-25 22:41:26,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71393250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:26,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:41:26,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:41:26,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383729334] [2022-11-25 22:41:26,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:26,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:41:26,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:41:26,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:41:26,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:41:26,567 INFO L87 Difference]: Start difference. First operand 37793 states and 55345 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-25 22:41:29,853 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 [] [2022-11-25 22:41:35,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:41:38,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:41:43,893 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 [] [2022-11-25 22:41:47,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:41:47,040 INFO L93 Difference]: Finished difference Result 75553 states and 110649 transitions. [2022-11-25 22:41:47,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:41:47,041 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 96 [2022-11-25 22:41:47,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:41:47,224 INFO L225 Difference]: With dead ends: 75553 [2022-11-25 22:41:47,224 INFO L226 Difference]: Without dead ends: 37793 [2022-11-25 22:41:47,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:41:47,351 INFO L413 NwaCegarLoop]: 2881 mSDtfsCounter, 1 mSDsluCounter, 5756 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 8637 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:41:47,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 8637 Invalid, 1044 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1041 Invalid, 3 Unknown, 0 Unchecked, 18.6s Time] [2022-11-25 22:41:47,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37793 states. [2022-11-25 22:41:49,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37793 to 37791. [2022-11-25 22:41:49,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37791 states, 25106 states have (on average 1.3561698398789135) internal successors, (34048), 25445 states have internal predecessors, (34048), 10643 states have call successors, (10643), 2053 states have call predecessors, (10643), 2041 states have return successors, (10651), 10564 states have call predecessors, (10651), 10635 states have call successors, (10651) [2022-11-25 22:41:49,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37791 states to 37791 states and 55342 transitions. [2022-11-25 22:41:49,417 INFO L78 Accepts]: Start accepts. Automaton has 37791 states and 55342 transitions. Word has length 96 [2022-11-25 22:41:49,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:41:49,418 INFO L495 AbstractCegarLoop]: Abstraction has 37791 states and 55342 transitions. [2022-11-25 22:41:49,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-25 22:41:49,418 INFO L276 IsEmpty]: Start isEmpty. Operand 37791 states and 55342 transitions. [2022-11-25 22:41:49,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-25 22:41:49,428 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:41:49,428 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:41:49,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:41:49,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 22:41:49,657 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:41:49,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:41:49,657 INFO L85 PathProgramCache]: Analyzing trace with hash -2096310497, now seen corresponding path program 1 times [2022-11-25 22:41:49,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:41:49,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247366229] [2022-11-25 22:41:49,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:49,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:41:49,811 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:41:49,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1315198446] [2022-11-25 22:41:49,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:41:49,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:41:49,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:41:49,813 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:41:49,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 22:41:51,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:41:51,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 3287 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-25 22:41:51,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:41:52,009 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:41:52,009 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:41:52,009 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:41:52,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247366229] [2022-11-25 22:41:52,010 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:41:52,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315198446] [2022-11-25 22:41:52,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1315198446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:41:52,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:41:52,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 22:41:52,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081152635] [2022-11-25 22:41:52,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:41:52,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:41:52,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:41:52,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:41:52,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:41:52,012 INFO L87 Difference]: Start difference. First operand 37791 states and 55342 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 22:41:56,400 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 [] [2022-11-25 22:41:58,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:42:00,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:42:06,250 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:42:08,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:42:12,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:42:22,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:42:25,046 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 [] [2022-11-25 22:42:31,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:42:31,992 INFO L93 Difference]: Finished difference Result 39944 states and 58767 transitions. [2022-11-25 22:42:32,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:42:32,000 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 95 [2022-11-25 22:42:32,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:42:32,164 INFO L225 Difference]: With dead ends: 39944 [2022-11-25 22:42:32,164 INFO L226 Difference]: Without dead ends: 39941 [2022-11-25 22:42:32,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:42:32,182 INFO L413 NwaCegarLoop]: 4540 mSDtfsCounter, 2313 mSDsluCounter, 13098 mSDsCounter, 0 mSdLazyCounter, 5363 mSolverCounterSat, 57 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2443 SdHoareTripleChecker+Valid, 17638 SdHoareTripleChecker+Invalid, 5427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 5363 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:42:32,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2443 Valid, 17638 Invalid, 5427 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [57 Valid, 5363 Invalid, 7 Unknown, 0 Unchecked, 38.2s Time] [2022-11-25 22:42:32,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39941 states. [2022-11-25 22:42:33,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39941 to 37831. [2022-11-25 22:42:33,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37831 states, 25130 states have (on average 1.3559092717867092) internal successors, (34074), 25468 states have internal predecessors, (34074), 10649 states have call successors, (10649), 2064 states have call predecessors, (10649), 2051 states have return successors, (10657), 10570 states have call predecessors, (10657), 10641 states have call successors, (10657) [2022-11-25 22:42:34,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37831 states to 37831 states and 55380 transitions. [2022-11-25 22:42:34,121 INFO L78 Accepts]: Start accepts. Automaton has 37831 states and 55380 transitions. Word has length 95 [2022-11-25 22:42:34,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:42:34,122 INFO L495 AbstractCegarLoop]: Abstraction has 37831 states and 55380 transitions. [2022-11-25 22:42:34,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-25 22:42:34,122 INFO L276 IsEmpty]: Start isEmpty. Operand 37831 states and 55380 transitions. [2022-11-25 22:42:34,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-11-25 22:42:34,134 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:42:34,134 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:42:34,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 22:42:34,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 22:42:34,352 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:42:34,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:42:34,353 INFO L85 PathProgramCache]: Analyzing trace with hash -72740909, now seen corresponding path program 1 times [2022-11-25 22:42:34,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:42:34,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438415322] [2022-11-25 22:42:34,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:42:34,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:42:34,500 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:42:34,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1164956460] [2022-11-25 22:42:34,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:42:34,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:42:34,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:42:34,502 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:42:34,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 22:42:36,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:42:36,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 3323 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:42:36,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:42:36,806 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 22:42:36,807 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:42:36,807 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:42:36,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438415322] [2022-11-25 22:42:36,807 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 22:42:36,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164956460] [2022-11-25 22:42:36,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164956460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:42:36,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:42:36,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:42:36,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843565914] [2022-11-25 22:42:36,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:42:36,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:42:36,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:42:36,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:42:36,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:42:36,809 INFO L87 Difference]: Start difference. First operand 37831 states and 55380 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 22:42:39,646 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 [] [2022-11-25 22:42:41,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:42:43,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:42:46,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:42:50,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:42:52,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:42:52,528 INFO L93 Difference]: Finished difference Result 37868 states and 55415 transitions. [2022-11-25 22:42:52,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:42:52,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 104 [2022-11-25 22:42:52,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:42:52,792 INFO L225 Difference]: With dead ends: 37868 [2022-11-25 22:42:52,792 INFO L226 Difference]: Without dead ends: 37865 [2022-11-25 22:42:52,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:42:52,808 INFO L413 NwaCegarLoop]: 4013 mSDtfsCounter, 2356 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2356 SdHoareTripleChecker+Valid, 5916 SdHoareTripleChecker+Invalid, 707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:42:52,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2356 Valid, 5916 Invalid, 707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 702 Invalid, 4 Unknown, 0 Unchecked, 14.3s Time] [2022-11-25 22:42:52,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37865 states. [2022-11-25 22:42:54,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37865 to 37831. [2022-11-25 22:42:54,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37831 states, 25130 states have (on average 1.3558296856346996) internal successors, (34072), 25468 states have internal predecessors, (34072), 10647 states have call successors, (10647), 2064 states have call predecessors, (10647), 2053 states have return successors, (10656), 10570 states have call predecessors, (10656), 10640 states have call successors, (10656) [2022-11-25 22:42:54,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37831 states to 37831 states and 55375 transitions. [2022-11-25 22:42:54,631 INFO L78 Accepts]: Start accepts. Automaton has 37831 states and 55375 transitions. Word has length 104 [2022-11-25 22:42:54,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:42:54,631 INFO L495 AbstractCegarLoop]: Abstraction has 37831 states and 55375 transitions. [2022-11-25 22:42:54,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-25 22:42:54,632 INFO L276 IsEmpty]: Start isEmpty. Operand 37831 states and 55375 transitions. [2022-11-25 22:42:54,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-25 22:42:54,644 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:42:54,644 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-25 22:42:54,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:42:54,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-25 22:42:54,860 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:42:54,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:42:54,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1337060831, now seen corresponding path program 1 times [2022-11-25 22:42:54,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:42:54,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996911415] [2022-11-25 22:42:54,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:42:54,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:42:54,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:42:55,641 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 22:42:55,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:42:55,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996911415] [2022-11-25 22:42:55,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996911415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:42:55,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:42:55,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 22:42:55,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051334015] [2022-11-25 22:42:55,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:42:55,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:42:55,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:42:55,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:42:55,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:42:55,643 INFO L87 Difference]: Start difference. First operand 37831 states and 55375 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-25 22:42:59,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:43:02,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:43:04,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:43:07,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:43:08,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:43:12,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:43:20,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:43:25,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:43:25,291 INFO L93 Difference]: Finished difference Result 45180 states and 66349 transitions. [2022-11-25 22:43:25,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:43:25,292 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 113 [2022-11-25 22:43:25,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:43:25,505 INFO L225 Difference]: With dead ends: 45180 [2022-11-25 22:43:25,505 INFO L226 Difference]: Without dead ends: 45177 [2022-11-25 22:43:25,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 22:43:25,531 INFO L413 NwaCegarLoop]: 4424 mSDtfsCounter, 2945 mSDsluCounter, 9077 mSDsCounter, 0 mSdLazyCounter, 2366 mSolverCounterSat, 881 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3076 SdHoareTripleChecker+Valid, 13501 SdHoareTripleChecker+Invalid, 3252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 881 IncrementalHoareTripleChecker+Valid, 2366 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:43:25,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3076 Valid, 13501 Invalid, 3252 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [881 Valid, 2366 Invalid, 5 Unknown, 0 Unchecked, 27.9s Time] [2022-11-25 22:43:25,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45177 states. [2022-11-25 22:43:27,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45177 to 42451. [2022-11-25 22:43:27,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42451 states, 28168 states have (on average 1.352811701221244) internal successors, (38106), 28544 states have internal predecessors, (38106), 11915 states have call successors, (11915), 2384 states have call predecessors, (11915), 2367 states have return successors, (11924), 11830 states have call predecessors, (11924), 11908 states have call successors, (11924) [2022-11-25 22:43:27,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42451 states to 42451 states and 61945 transitions. [2022-11-25 22:43:27,633 INFO L78 Accepts]: Start accepts. Automaton has 42451 states and 61945 transitions. Word has length 113 [2022-11-25 22:43:27,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:43:27,634 INFO L495 AbstractCegarLoop]: Abstraction has 42451 states and 61945 transitions. [2022-11-25 22:43:27,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-25 22:43:27,634 INFO L276 IsEmpty]: Start isEmpty. Operand 42451 states and 61945 transitions. [2022-11-25 22:43:27,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-11-25 22:43:27,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:43:27,645 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-25 22:43:27,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 22:43:27,646 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:43:27,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:43:27,646 INFO L85 PathProgramCache]: Analyzing trace with hash -2064377040, now seen corresponding path program 1 times [2022-11-25 22:43:27,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:43:27,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743096211] [2022-11-25 22:43:27,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:43:27,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:43:27,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:43:28,004 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 22:43:28,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:43:28,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743096211] [2022-11-25 22:43:28,004 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743096211] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:43:28,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198221011] [2022-11-25 22:43:28,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:43:28,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:43:28,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:43:28,006 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:43:28,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 22:43:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:43:30,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 2757 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:43:30,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:43:30,349 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-25 22:43:30,350 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:43:30,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198221011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:43:30,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:43:30,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-11-25 22:43:30,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301686101] [2022-11-25 22:43:30,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:43:30,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:43:30,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:43:30,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:43:30,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:43:30,352 INFO L87 Difference]: Start difference. First operand 42451 states and 61945 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 4 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2022-11-25 22:43:33,694 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 [] [2022-11-25 22:43:36,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:43:40,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:43:43,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:43:49,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:43:51,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:43:54,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:43:54,376 INFO L93 Difference]: Finished difference Result 85179 states and 124350 transitions. [2022-11-25 22:43:54,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:43:54,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 4 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 114 [2022-11-25 22:43:54,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:43:54,602 INFO L225 Difference]: With dead ends: 85179 [2022-11-25 22:43:54,602 INFO L226 Difference]: Without dead ends: 42729 [2022-11-25 22:43:54,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-25 22:43:54,859 INFO L413 NwaCegarLoop]: 2921 mSDtfsCounter, 72 mSDsluCounter, 8655 mSDsCounter, 0 mSdLazyCounter, 1399 mSolverCounterSat, 39 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 11576 SdHoareTripleChecker+Invalid, 1441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1399 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:43:54,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 11576 Invalid, 1441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1399 Invalid, 3 Unknown, 0 Unchecked, 22.0s Time] [2022-11-25 22:43:54,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42729 states. [2022-11-25 22:43:56,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42729 to 42491. [2022-11-25 22:43:56,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42491 states, 28188 states have (on average 1.3521356605647794) internal successors, (38114), 28564 states have internal predecessors, (38114), 11935 states have call successors, (11935), 2384 states have call predecessors, (11935), 2367 states have return successors, (11944), 11850 states have call predecessors, (11944), 11928 states have call successors, (11944) [2022-11-25 22:43:57,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42491 states to 42491 states and 61993 transitions. [2022-11-25 22:43:57,116 INFO L78 Accepts]: Start accepts. Automaton has 42491 states and 61993 transitions. Word has length 114 [2022-11-25 22:43:57,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:43:57,117 INFO L495 AbstractCegarLoop]: Abstraction has 42491 states and 61993 transitions. [2022-11-25 22:43:57,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 4 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2022-11-25 22:43:57,117 INFO L276 IsEmpty]: Start isEmpty. Operand 42491 states and 61993 transitions. [2022-11-25 22:43:57,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-11-25 22:43:57,125 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:43:57,125 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-25 22:43:57,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 22:43:57,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-25 22:43:57,345 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:43:57,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:43:57,346 INFO L85 PathProgramCache]: Analyzing trace with hash -188262145, now seen corresponding path program 1 times [2022-11-25 22:43:57,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:43:57,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163442305] [2022-11-25 22:43:57,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:43:57,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:43:57,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:43:58,113 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 22:43:58,114 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:43:58,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163442305] [2022-11-25 22:43:58,114 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163442305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:43:58,114 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:43:58,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:43:58,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775499616] [2022-11-25 22:43:58,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:43:58,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:43:58,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:43:58,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:43:58,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:43:58,117 INFO L87 Difference]: Start difference. First operand 42491 states and 61993 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-25 22:43:59,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:44:03,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:44:08,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:44:12,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:44:18,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:44:23,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:44:26,187 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:44:32,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:44:32,492 INFO L93 Difference]: Finished difference Result 110806 states and 165533 transitions. [2022-11-25 22:44:32,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:44:32,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 128 [2022-11-25 22:44:32,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:44:32,840 INFO L225 Difference]: With dead ends: 110806 [2022-11-25 22:44:32,840 INFO L226 Difference]: Without dead ends: 68348 [2022-11-25 22:44:33,000 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 [2022-11-25 22:44:33,000 INFO L413 NwaCegarLoop]: 4589 mSDtfsCounter, 2434 mSDsluCounter, 7871 mSDsCounter, 0 mSdLazyCounter, 1409 mSolverCounterSat, 395 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2828 SdHoareTripleChecker+Valid, 12460 SdHoareTripleChecker+Invalid, 1809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 395 IncrementalHoareTripleChecker+Valid, 1409 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:44:33,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2828 Valid, 12460 Invalid, 1809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [395 Valid, 1409 Invalid, 5 Unknown, 0 Unchecked, 29.8s Time] [2022-11-25 22:44:33,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68348 states. [2022-11-25 22:44:35,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68348 to 42555. [2022-11-25 22:44:35,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42555 states, 28252 states have (on average 1.3513379583746283) internal successors, (38178), 28628 states have internal predecessors, (38178), 11935 states have call successors, (11935), 2384 states have call predecessors, (11935), 2367 states have return successors, (11944), 11850 states have call predecessors, (11944), 11928 states have call successors, (11944) [2022-11-25 22:44:36,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42555 states to 42555 states and 62057 transitions. [2022-11-25 22:44:36,302 INFO L78 Accepts]: Start accepts. Automaton has 42555 states and 62057 transitions. Word has length 128 [2022-11-25 22:44:36,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:44:36,304 INFO L495 AbstractCegarLoop]: Abstraction has 42555 states and 62057 transitions. [2022-11-25 22:44:36,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-25 22:44:36,305 INFO L276 IsEmpty]: Start isEmpty. Operand 42555 states and 62057 transitions. [2022-11-25 22:44:36,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-25 22:44:36,313 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:44:36,313 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-25 22:44:36,313 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 22:44:36,314 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:44:36,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:44:36,314 INFO L85 PathProgramCache]: Analyzing trace with hash 92730699, now seen corresponding path program 1 times [2022-11-25 22:44:36,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:44:36,315 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76926764] [2022-11-25 22:44:36,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:44:36,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:44:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:44:36,865 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-11-25 22:44:36,865 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:44:36,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76926764] [2022-11-25 22:44:36,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76926764] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:44:36,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:44:36,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:44:36,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804960504] [2022-11-25 22:44:36,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:44:36,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:44:36,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:44:36,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:44:36,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:44:36,869 INFO L87 Difference]: Start difference. First operand 42555 states and 62057 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-25 22:44:39,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-25 22:44:42,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:44:45,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:44:47,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:44:52,465 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 [] [2022-11-25 22:44:56,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:44:56,457 INFO L93 Difference]: Finished difference Result 64031 states and 94722 transitions. [2022-11-25 22:44:56,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:44:56,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 131 [2022-11-25 22:44:56,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:44:56,701 INFO L225 Difference]: With dead ends: 64031 [2022-11-25 22:44:56,702 INFO L226 Difference]: Without dead ends: 51560 [2022-11-25 22:44:56,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:44:56,770 INFO L413 NwaCegarLoop]: 3861 mSDtfsCounter, 691 mSDsluCounter, 3076 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 6937 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:44:56,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 6937 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 800 Invalid, 4 Unknown, 0 Unchecked, 17.0s Time] [2022-11-25 22:44:56,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51560 states. [2022-11-25 22:44:59,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51560 to 42557. [2022-11-25 22:44:59,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42557 states, 28254 states have (on average 1.3513130884122602) internal successors, (38180), 28630 states have internal predecessors, (38180), 11935 states have call successors, (11935), 2384 states have call predecessors, (11935), 2367 states have return successors, (11944), 11850 states have call predecessors, (11944), 11928 states have call successors, (11944) [2022-11-25 22:44:59,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42557 states to 42557 states and 62059 transitions. [2022-11-25 22:44:59,616 INFO L78 Accepts]: Start accepts. Automaton has 42557 states and 62059 transitions. Word has length 131 [2022-11-25 22:44:59,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:44:59,617 INFO L495 AbstractCegarLoop]: Abstraction has 42557 states and 62059 transitions. [2022-11-25 22:44:59,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-25 22:44:59,618 INFO L276 IsEmpty]: Start isEmpty. Operand 42557 states and 62059 transitions. [2022-11-25 22:44:59,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-25 22:44:59,631 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:44:59,631 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-25 22:44:59,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 22:44:59,631 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:44:59,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:44:59,632 INFO L85 PathProgramCache]: Analyzing trace with hash -245519403, now seen corresponding path program 1 times [2022-11-25 22:44:59,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:44:59,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223372695] [2022-11-25 22:44:59,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:44:59,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:44:59,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:45:00,224 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-25 22:45:00,225 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:45:00,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223372695] [2022-11-25 22:45:00,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223372695] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:45:00,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519484313] [2022-11-25 22:45:00,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:45:00,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:45:00,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:45:00,231 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:45:00,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_578539b7-ae5d-4180-9c33-cbf5a3025f78/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 22:45:02,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:45:02,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 3920 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:45:02,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:45:02,476 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-25 22:45:02,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:45:02,623 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-25 22:45:02,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519484313] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:45:02,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [775831603] [2022-11-25 22:45:02,649 INFO L159 IcfgInterpreter]: Started Sifa with 107 locations of interest [2022-11-25 22:45:02,649 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 22:45:02,654 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 22:45:02,659 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 22:45:02,660 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 22:45:32,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 22:45:33,577 INFO L217 Elim1Store]: Index analysis took 771 ms [2022-11-25 22:46:01,348 WARN L233 SmtUtils]: Spent 27.68s on a formula simplification. DAG size of input: 1992 DAG size of output: 1317 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-25 22:46:01,353 INFO L321 Elim1Store]: treesize reduction 2234, result has 46.8 percent of original size [2022-11-25 22:46:01,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 222 select indices, 222 select index equivalence classes, 24533 disjoint index pairs (out of 24531 index pairs), introduced 222 new quantified variables, introduced 221 case distinctions, treesize of input 1117 treesize of output 2642