./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--osst.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/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_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--osst.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/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_48f1ee59-b97c-4612-a712-280f62c50929/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 bda3098802797ffc08e15000ad078a436cf195bb22a40ea321a7ea1bbc073e29 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:32:38,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:32:38,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:32:39,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:32:39,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:32:39,024 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:32:39,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:32:39,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:32:39,032 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:32:39,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:32:39,039 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:32:39,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:32:39,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:32:39,047 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:32:39,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:32:39,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:32:39,052 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:32:39,053 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:32:39,055 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:32:39,062 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:32:39,065 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:32:39,067 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:32:39,068 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:32:39,069 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:32:39,077 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:32:39,078 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:32:39,078 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:32:39,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:32:39,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:32:39,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:32:39,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:32:39,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:32:39,088 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:32:39,089 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:32:39,090 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:32:39,090 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:32:39,091 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:32:39,091 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:32:39,091 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:32:39,092 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:32:39,092 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:32:39,093 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:32:39,127 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:32:39,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:32:39,128 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:32:39,128 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:32:39,129 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:32:39,129 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:32:39,129 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:32:39,130 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:32:39,130 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:32:39,130 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:32:39,131 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:32:39,131 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:32:39,132 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:32:39,132 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:32:39,132 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:32:39,132 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:32:39,132 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:32:39,133 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:32:39,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:32:39,134 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:32:39,134 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:32:39,135 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:32:39,135 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:32:39,135 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:32:39,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:32:39,135 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:32:39,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:32:39,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:32:39,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:32:39,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:32:39,137 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:32:39,137 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:32:39,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:32:39,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:32:39,138 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:32:39,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:32:39,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:32:39,139 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:32:39,139 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_48f1ee59-b97c-4612-a712-280f62c50929/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bda3098802797ffc08e15000ad078a436cf195bb22a40ea321a7ea1bbc073e29 [2022-11-26 00:32:39,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:32:39,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:32:39,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:32:39,498 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:32:39,498 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:32:39,499 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--osst.ko-entry_point.cil.out.i [2022-11-26 00:32:42,548 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:32:43,208 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:32:43,209 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--osst.ko-entry_point.cil.out.i [2022-11-26 00:32:43,258 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/data/106f6649c/e887251760d849a6825512aa7ca90a18/FLAG35457d684 [2022-11-26 00:32:43,277 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/data/106f6649c/e887251760d849a6825512aa7ca90a18 [2022-11-26 00:32:43,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:32:43,284 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:32:43,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:32:43,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:32:43,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:32:43,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:32:43" (1/1) ... [2022-11-26 00:32:43,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5acd9396 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:32:43, skipping insertion in model container [2022-11-26 00:32:43,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:32:43" (1/1) ... [2022-11-26 00:32:43,303 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:32:43,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:32:44,151 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:32:44,281 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-26 00:32:44,316 WARN L623 FunctionHandler]: Unknown extern function __msecs_to_jiffies [2022-11-26 00:32:44,329 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-11-26 00:32:44,392 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:32:44,540 WARN L623 FunctionHandler]: Unknown extern function __register_chrdev [2022-11-26 00:32:44,551 WARN L623 FunctionHandler]: Unknown extern function __unregister_chrdev [2022-11-26 00:32:44,665 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-11-26 00:32:44,667 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-26 00:32:44,668 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-11-26 00:32:44,676 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-11-26 00:32:44,678 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-26 00:32:44,679 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-11-26 00:32:44,913 WARN L623 FunctionHandler]: Unknown extern function scsi_normalize_sense [2022-11-26 00:32:44,917 WARN L623 FunctionHandler]: Unknown extern function scsi_get_sense_info_fld [2022-11-26 00:32:44,921 WARN L623 FunctionHandler]: Unknown extern function scsi_sense_desc_find [2022-11-26 00:32:44,942 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:44,943 WARN L623 FunctionHandler]: Unknown extern function __scsi_print_sense [2022-11-26 00:32:44,945 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:44,946 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:44,948 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:44,964 WARN L623 FunctionHandler]: Unknown extern function complete [2022-11-26 00:32:44,966 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:32:44,967 WARN L623 FunctionHandler]: Unknown extern function blk_rq_unmap_user [2022-11-26 00:32:44,968 WARN L623 FunctionHandler]: Unknown extern function __blk_put_request [2022-11-26 00:32:44,986 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:32:44,993 WARN L623 FunctionHandler]: Unknown extern function blk_get_request [2022-11-26 00:32:44,996 WARN L623 FunctionHandler]: Unknown extern function blk_rq_set_block_pc [2022-11-26 00:32:44,997 WARN L623 FunctionHandler]: Unknown extern function sg_next [2022-11-26 00:32:45,000 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_user [2022-11-26 00:32:45,001 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:32:45,002 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_kern [2022-11-26 00:32:45,006 WARN L623 FunctionHandler]: Unknown extern function blk_execute_rq_nowait [2022-11-26 00:32:45,008 WARN L623 FunctionHandler]: Unknown extern function blk_put_request [2022-11-26 00:32:45,015 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,021 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,034 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-11-26 00:32:45,041 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-11-26 00:32:45,045 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,092 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:32:45,093 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:32:45,098 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,103 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,120 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-11-26 00:32:45,121 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:32:45,122 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:32:45,136 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:32:45,190 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,196 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:32:45,213 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-26 00:32:45,218 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,220 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,246 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,253 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,267 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,273 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,285 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,312 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-26 00:32:45,313 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,316 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,316 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 00:32:45,321 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,322 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 00:32:45,326 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:32:45,328 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,330 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 00:32:45,334 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,336 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 00:32:45,343 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-26 00:32:45,346 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,346 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,347 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-26 00:32:45,349 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,356 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,357 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,360 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,361 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,361 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,372 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,373 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,398 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,399 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,403 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,405 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,428 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,436 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,443 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-26 00:32:45,444 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,452 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,466 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,466 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,469 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-26 00:32:45,471 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-26 00:32:45,474 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:32:45,477 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:32:45,480 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,481 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,482 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-26 00:32:45,483 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,496 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,498 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,498 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,504 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,504 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,505 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,505 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,506 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,507 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,508 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,538 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,539 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,540 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,540 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,541 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,549 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,569 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,569 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,570 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,572 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,575 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,576 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,578 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,584 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,588 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,589 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,593 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,606 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,627 WARN L623 FunctionHandler]: Unknown extern function scsi_set_medium_removal [2022-11-26 00:32:45,679 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-11-26 00:32:45,680 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-11-26 00:32:45,681 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,682 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,686 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,686 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,687 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,694 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:32:45,716 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-11-26 00:32:45,717 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-11-26 00:32:45,719 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,722 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,725 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:32:45,743 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,744 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,744 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,745 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,757 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,760 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,761 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,761 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,762 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,764 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,764 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,766 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,767 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,767 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,774 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,775 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,776 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,789 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,790 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,807 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-11-26 00:32:45,807 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:45,808 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:45,808 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:45,809 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:45,809 WARN L623 FunctionHandler]: Unknown extern function scsi_device_get [2022-11-26 00:32:45,809 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:45,810 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:45,811 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-11-26 00:32:45,814 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,816 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,823 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,828 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,832 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,833 WARN L623 FunctionHandler]: Unknown extern function scsi_device_put [2022-11-26 00:32:45,839 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-26 00:32:45,839 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:32:45,849 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,850 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,851 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,851 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,851 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,852 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,857 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-11-26 00:32:45,858 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:45,858 WARN L623 FunctionHandler]: Unknown extern function scsi_device_put [2022-11-26 00:32:45,863 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-26 00:32:45,864 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-11-26 00:32:45,864 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:32:45,865 WARN L623 FunctionHandler]: Unknown extern function scsi_ioctl_block_when_processing_errors [2022-11-26 00:32:45,866 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-26 00:32:45,866 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,877 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:32:45,877 WARN L623 FunctionHandler]: Unknown extern function scsi_ioctl [2022-11-26 00:32:45,877 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:32:45,878 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:32:45,878 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:32:45,891 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,892 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,894 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,895 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,896 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-26 00:32:45,898 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,899 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,901 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,902 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,904 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,905 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,908 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,915 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:45,939 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-26 00:32:45,939 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-26 00:32:45,940 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-26 00:32:45,953 WARN L623 FunctionHandler]: Unknown extern function driver_create_file [2022-11-26 00:32:45,958 WARN L623 FunctionHandler]: Unknown extern function driver_remove_file [2022-11-26 00:32:46,000 WARN L623 FunctionHandler]: Unknown extern function __class_create [2022-11-26 00:32:46,000 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,005 WARN L623 FunctionHandler]: Unknown extern function device_destroy [2022-11-26 00:32:46,010 WARN L623 FunctionHandler]: Unknown extern function device_create [2022-11-26 00:32:46,011 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,011 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-26 00:32:46,012 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-26 00:32:46,012 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-26 00:32:46,012 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-26 00:32:46,013 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-26 00:32:46,013 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-26 00:32:46,018 WARN L623 FunctionHandler]: Unknown extern function class_destroy [2022-11-26 00:32:46,020 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-11-26 00:32:46,020 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,021 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-11-26 00:32:46,022 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:46,022 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,023 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:46,023 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,024 WARN L623 FunctionHandler]: Unknown extern function panic [2022-11-26 00:32:46,024 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:46,025 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,025 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:46,026 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,026 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:32:46,026 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:32:46,028 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-26 00:32:46,029 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-26 00:32:46,033 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-26 00:32:46,033 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:46,035 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-11-26 00:32:46,036 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:32:46,036 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 00:32:46,041 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-11-26 00:32:46,042 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 00:32:46,044 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:46,044 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 00:32:46,045 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:32:46,045 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:32:46,045 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:46,050 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,052 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,053 WARN L623 FunctionHandler]: Unknown extern function scsi_register_driver [2022-11-26 00:32:46,054 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-11-26 00:32:46,063 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-11-26 00:32:46,064 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 00:32:46,064 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:32:46,065 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 00:32:46,065 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:32:46,065 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:32:46,066 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,082 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 00:32:46,087 WARN L623 FunctionHandler]: Unknown extern function noop_llseek [2022-11-26 00:32:46,097 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_48f1ee59-b97c-4612-a712-280f62c50929/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--osst.ko-entry_point.cil.out.i[353122,353135] [2022-11-26 00:32:46,138 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:32:46,146 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:32:46,147 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:32:46,148 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:32:46,158 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:32:46,171 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:32:46,172 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:32:46,172 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:32:46,178 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:32:46,218 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:32:46,369 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:32:46,371 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-26 00:32:46,373 WARN L623 FunctionHandler]: Unknown extern function __msecs_to_jiffies [2022-11-26 00:32:46,375 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-11-26 00:32:46,378 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:32:46,382 WARN L623 FunctionHandler]: Unknown extern function __register_chrdev [2022-11-26 00:32:46,382 WARN L623 FunctionHandler]: Unknown extern function __unregister_chrdev [2022-11-26 00:32:46,385 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-11-26 00:32:46,385 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-26 00:32:46,385 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-11-26 00:32:46,386 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-11-26 00:32:46,386 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-26 00:32:46,387 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-11-26 00:32:46,394 WARN L623 FunctionHandler]: Unknown extern function scsi_normalize_sense [2022-11-26 00:32:46,394 WARN L623 FunctionHandler]: Unknown extern function scsi_get_sense_info_fld [2022-11-26 00:32:46,395 WARN L623 FunctionHandler]: Unknown extern function scsi_sense_desc_find [2022-11-26 00:32:46,398 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,398 WARN L623 FunctionHandler]: Unknown extern function __scsi_print_sense [2022-11-26 00:32:46,399 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,399 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,399 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,401 WARN L623 FunctionHandler]: Unknown extern function complete [2022-11-26 00:32:46,402 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:32:46,402 WARN L623 FunctionHandler]: Unknown extern function blk_rq_unmap_user [2022-11-26 00:32:46,402 WARN L623 FunctionHandler]: Unknown extern function __blk_put_request [2022-11-26 00:32:46,405 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:32:46,407 WARN L623 FunctionHandler]: Unknown extern function blk_get_request [2022-11-26 00:32:46,407 WARN L623 FunctionHandler]: Unknown extern function blk_rq_set_block_pc [2022-11-26 00:32:46,408 WARN L623 FunctionHandler]: Unknown extern function sg_next [2022-11-26 00:32:46,409 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_user [2022-11-26 00:32:46,411 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:32:46,412 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_kern [2022-11-26 00:32:46,415 WARN L623 FunctionHandler]: Unknown extern function blk_execute_rq_nowait [2022-11-26 00:32:46,419 WARN L623 FunctionHandler]: Unknown extern function blk_put_request [2022-11-26 00:32:46,420 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,421 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,426 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-11-26 00:32:46,426 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-11-26 00:32:46,435 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,443 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:32:46,444 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:32:46,445 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,448 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,450 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-11-26 00:32:46,451 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:32:46,452 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:32:46,454 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:32:46,458 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,459 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:32:46,461 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-26 00:32:46,462 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,462 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,466 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,467 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,469 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,471 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,476 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,483 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-26 00:32:46,483 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,484 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,485 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 00:32:46,486 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,487 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 00:32:46,489 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:32:46,490 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,490 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 00:32:46,491 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,492 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 00:32:46,494 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-26 00:32:46,495 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,495 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,496 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-11-26 00:32:46,496 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,498 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,499 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,500 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,501 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,501 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,504 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,505 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,552 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,554 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,556 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,557 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,561 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,563 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,564 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-26 00:32:46,564 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,568 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,572 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,572 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,574 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-26 00:32:46,574 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-26 00:32:46,575 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:32:46,576 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-26 00:32:46,576 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,577 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,577 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-11-26 00:32:46,578 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,580 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,580 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,581 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,581 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,582 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,582 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,582 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,583 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,583 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,584 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,584 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,585 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,585 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,585 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,586 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,589 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,594 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,594 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,595 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,596 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,598 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,598 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,600 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,601 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,604 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,605 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,608 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,614 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,620 WARN L623 FunctionHandler]: Unknown extern function scsi_set_medium_removal [2022-11-26 00:32:46,622 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-11-26 00:32:46,622 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-11-26 00:32:46,624 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,624 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,627 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,627 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,628 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,633 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:32:46,635 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-11-26 00:32:46,635 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-11-26 00:32:46,637 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,639 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,641 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:32:46,642 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,643 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,643 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,644 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,647 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,648 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,648 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,649 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,649 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,650 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,650 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,651 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,651 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,652 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,652 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,653 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,653 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,662 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,663 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,670 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-11-26 00:32:46,670 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:46,671 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:46,671 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:46,671 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:46,672 WARN L623 FunctionHandler]: Unknown extern function scsi_device_get [2022-11-26 00:32:46,672 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:46,672 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:46,673 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-11-26 00:32:46,674 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,675 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,680 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,684 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,687 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,688 WARN L623 FunctionHandler]: Unknown extern function scsi_device_put [2022-11-26 00:32:46,689 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-26 00:32:46,689 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:32:46,693 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,694 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,694 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,694 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,695 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,695 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,696 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-11-26 00:32:46,696 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:46,697 WARN L623 FunctionHandler]: Unknown extern function scsi_device_put [2022-11-26 00:32:46,698 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-26 00:32:46,698 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-11-26 00:32:46,698 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:32:46,699 WARN L623 FunctionHandler]: Unknown extern function scsi_ioctl_block_when_processing_errors [2022-11-26 00:32:46,700 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-26 00:32:46,700 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,711 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:32:46,712 WARN L623 FunctionHandler]: Unknown extern function scsi_ioctl [2022-11-26 00:32:46,712 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:32:46,713 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:32:46,713 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-26 00:32:46,717 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,719 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,720 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,720 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,722 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-11-26 00:32:46,723 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,724 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,725 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,727 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,728 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,729 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,730 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,732 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,736 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-26 00:32:46,736 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-26 00:32:46,737 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-26 00:32:46,738 WARN L623 FunctionHandler]: Unknown extern function driver_create_file [2022-11-26 00:32:46,739 WARN L623 FunctionHandler]: Unknown extern function driver_remove_file [2022-11-26 00:32:46,745 WARN L623 FunctionHandler]: Unknown extern function __class_create [2022-11-26 00:32:46,746 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,746 WARN L623 FunctionHandler]: Unknown extern function device_destroy [2022-11-26 00:32:46,747 WARN L623 FunctionHandler]: Unknown extern function device_create [2022-11-26 00:32:46,747 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,748 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-26 00:32:46,748 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-26 00:32:46,748 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-26 00:32:46,748 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-26 00:32:46,749 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-26 00:32:46,749 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-11-26 00:32:46,749 WARN L623 FunctionHandler]: Unknown extern function class_destroy [2022-11-26 00:32:46,751 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-11-26 00:32:46,751 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,751 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-11-26 00:32:46,752 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:46,752 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,752 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:46,753 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,753 WARN L623 FunctionHandler]: Unknown extern function panic [2022-11-26 00:32:46,754 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:46,754 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,754 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:46,755 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,755 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:32:46,755 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-26 00:32:46,756 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-26 00:32:46,757 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-11-26 00:32:46,794 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-26 00:32:46,795 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:46,796 WARN L623 FunctionHandler]: Unknown extern function sdev_prefix_printk [2022-11-26 00:32:46,796 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:32:46,796 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 00:32:46,797 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-11-26 00:32:46,798 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 00:32:46,798 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:46,799 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 00:32:46,799 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:32:46,799 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:32:46,800 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-11-26 00:32:46,800 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,801 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,801 WARN L623 FunctionHandler]: Unknown extern function scsi_register_driver [2022-11-26 00:32:46,802 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-11-26 00:32:46,803 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-11-26 00:32:46,804 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 00:32:46,804 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:32:46,804 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-11-26 00:32:46,805 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:32:46,805 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:32:46,805 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:32:46,809 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 00:32:46,813 WARN L623 FunctionHandler]: Unknown extern function noop_llseek [2022-11-26 00:32:46,817 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_48f1ee59-b97c-4612-a712-280f62c50929/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--osst.ko-entry_point.cil.out.i[353122,353135] [2022-11-26 00:32:46,823 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:32:46,825 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:32:46,826 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:32:46,826 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:32:46,827 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:32:46,840 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:32:46,841 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:32:46,842 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:32:46,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:32:46,930 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:32:46,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:32:46 WrapperNode [2022-11-26 00:32:46,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:32:46,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:32:46,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:32:46,932 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:32:46,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:32:46" (1/1) ... [2022-11-26 00:32:47,075 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:32:46" (1/1) ... [2022-11-26 00:32:47,427 INFO L138 Inliner]: procedures = 247, calls = 4082, calls flagged for inlining = 104, calls inlined = 99, statements flattened = 9602 [2022-11-26 00:32:47,462 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:32:47,463 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:32:47,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:32:47,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:32:47,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:32:46" (1/1) ... [2022-11-26 00:32:47,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:32:46" (1/1) ... [2022-11-26 00:32:47,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:32:46" (1/1) ... [2022-11-26 00:32:47,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:32:46" (1/1) ... [2022-11-26 00:32:47,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:32:46" (1/1) ... [2022-11-26 00:32:47,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:32:46" (1/1) ... [2022-11-26 00:32:47,838 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:32:46" (1/1) ... [2022-11-26 00:32:47,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:32:46" (1/1) ... [2022-11-26 00:32:47,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:32:47,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:32:47,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:32:47,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:32:47,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:32:46" (1/1) ... [2022-11-26 00:32:47,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:32:47,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:32:47,946 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:32:47,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:32:47,998 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-26 00:32:47,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-26 00:32:47,999 INFO L130 BoogieDeclarations]: Found specification of procedure osst_log_options [2022-11-26 00:32:47,999 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_log_options [2022-11-26 00:32:47,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-26 00:32:47,999 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-26 00:32:47,999 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-26 00:32:47,999 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-26 00:32:47,999 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-11-26 00:32:48,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-26 00:32:48,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-26 00:32:48,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-26 00:32:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-26 00:32:48,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-26 00:32:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-26 00:32:48,000 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_behind_check [2022-11-26 00:32:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_behind_check [2022-11-26 00:32:48,001 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-26 00:32:48,001 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-26 00:32:48,001 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2022-11-26 00:32:48,001 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2022-11-26 00:32:48,001 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-26 00:32:48,001 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-26 00:32:48,001 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock [2022-11-26 00:32:48,002 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock [2022-11-26 00:32:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure osst_release_request [2022-11-26 00:32:48,002 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_release_request [2022-11-26 00:32:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-26 00:32:48,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-26 00:32:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure osst_set_frame_position [2022-11-26 00:32:48,002 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_set_frame_position [2022-11-26 00:32:48,002 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_header [2022-11-26 00:32:48,003 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_header [2022-11-26 00:32:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-26 00:32:48,003 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-26 00:32:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-26 00:32:48,003 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-26 00:32:48,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-26 00:32:48,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-26 00:32:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-11-26 00:32:48,004 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-11-26 00:32:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_frame [2022-11-26 00:32:48,004 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_frame [2022-11-26 00:32:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure tape_name [2022-11-26 00:32:48,004 INFO L138 BoogieDeclarations]: Found implementation of procedure tape_name [2022-11-26 00:32:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_put [2022-11-26 00:32:48,004 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_put [2022-11-26 00:32:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-26 00:32:48,005 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-26 00:32:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-26 00:32:48,005 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-26 00:32:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_write_buffer [2022-11-26 00:32:48,005 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_write_buffer [2022-11-26 00:32:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure osst_initiate_read [2022-11-26 00:32:48,006 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_initiate_read [2022-11-26 00:32:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure osst_seek_logical_blk [2022-11-26 00:32:48,006 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_seek_logical_blk [2022-11-26 00:32:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_trailer [2022-11-26 00:32:48,006 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_trailer [2022-11-26 00:32:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_drive_buffer [2022-11-26 00:32:48,007 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_drive_buffer [2022-11-26 00:32:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:32:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-26 00:32:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure osst_int_ioctl [2022-11-26 00:32:48,007 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_int_ioctl [2022-11-26 00:32:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-11-26 00:32:48,008 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-11-26 00:32:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure do_door_lock [2022-11-26 00:32:48,008 INFO L138 BoogieDeclarations]: Found implementation of procedure do_door_lock [2022-11-26 00:32:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:32:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_to_buffer [2022-11-26 00:32:48,008 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_to_buffer [2022-11-26 00:32:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_analyze_headers [2022-11-26 00:32:48,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_analyze_headers [2022-11-26 00:32:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-26 00:32:48,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-26 00:32:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-11-26 00:32:48,009 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-11-26 00:32:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_logical_frame [2022-11-26 00:32:48,009 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_logical_frame [2022-11-26 00:32:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2022-11-26 00:32:48,010 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2022-11-26 00:32:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:32:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure osst_position_tape_and_confirm [2022-11-26 00:32:48,010 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_position_tape_and_confirm [2022-11-26 00:32:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:32:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-11-26 00:32:48,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-11-26 00:32:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-26 00:32:48,011 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-26 00:32:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-26 00:32:48,011 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-26 00:32:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure osst_verify_frame [2022-11-26 00:32:48,011 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_verify_frame [2022-11-26 00:32:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-26 00:32:48,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-26 00:32:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_ready [2022-11-26 00:32:48,012 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_ready [2022-11-26 00:32:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-26 00:32:48,012 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-26 00:32:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reset_header [2022-11-26 00:32:48,012 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reset_header [2022-11-26 00:32:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-26 00:32:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure osst_do_scsi [2022-11-26 00:32:48,013 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_do_scsi [2022-11-26 00:32:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-26 00:32:48,015 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-26 00:32:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-11-26 00:32:48,015 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-11-26 00:32:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 00:32:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:32:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure osst_chk_result [2022-11-26 00:32:48,016 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_chk_result [2022-11-26 00:32:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_add [2022-11-26 00:32:48,016 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_add [2022-11-26 00:32:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-26 00:32:48,016 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-26 00:32:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_backward [2022-11-26 00:32:48,017 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_backward [2022-11-26 00:32:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_back_buffer_and_rewrite [2022-11-26 00:32:48,017 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_back_buffer_and_rewrite [2022-11-26 00:32:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure cross_eof [2022-11-26 00:32:48,018 INFO L138 BoogieDeclarations]: Found implementation of procedure cross_eof [2022-11-26 00:32:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_cleanup [2022-11-26 00:32:48,018 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_cleanup [2022-11-26 00:32:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-26 00:32:48,018 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-26 00:32:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_buffer [2022-11-26 00:32:48,018 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_buffer [2022-11-26 00:32:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-26 00:32:48,019 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-26 00:32:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:32:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-26 00:32:48,019 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-26 00:32:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reposition_and_retry [2022-11-26 00:32:48,019 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reposition_and_retry [2022-11-26 00:32:48,019 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_filemark [2022-11-26 00:32:48,020 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_filemark [2022-11-26 00:32:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_destroy [2022-11-26 00:32:48,020 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_destroy [2022-11-26 00:32:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-26 00:32:48,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-26 00:32:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-26 00:32:48,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-26 00:32:48,020 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-11-26 00:32:48,021 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-11-26 00:32:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:32:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-11-26 00:32:48,021 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-11-26 00:32:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-26 00:32:48,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-26 00:32:48,021 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock [2022-11-26 00:32:48,022 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock [2022-11-26 00:32:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-26 00:32:48,022 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-26 00:32:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:32:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_write_header [2022-11-26 00:32:48,022 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_write_header [2022-11-26 00:32:48,022 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write [2022-11-26 00:32:48,023 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write [2022-11-26 00:32:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_frame [2022-11-26 00:32:48,023 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_frame [2022-11-26 00:32:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-11-26 00:32:48,023 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-11-26 00:32:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:32:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-26 00:32:48,023 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_frame_position [2022-11-26 00:32:48,024 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_frame_position [2022-11-26 00:32:48,024 INFO L130 BoogieDeclarations]: Found specification of procedure os_scsi_tape_flush [2022-11-26 00:32:48,024 INFO L138 BoogieDeclarations]: Found implementation of procedure os_scsi_tape_flush [2022-11-26 00:32:48,024 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_buffer [2022-11-26 00:32:48,024 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_buffer [2022-11-26 00:32:48,024 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_from_buffer [2022-11-26 00:32:48,024 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_from_buffer [2022-11-26 00:32:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-26 00:32:48,025 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-26 00:32:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-11-26 00:32:48,025 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-11-26 00:32:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_buffer [2022-11-26 00:32:48,025 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_buffer [2022-11-26 00:32:48,025 INFO L130 BoogieDeclarations]: Found specification of procedure osst_init_aux [2022-11-26 00:32:48,026 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_init_aux [2022-11-26 00:32:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_error_recovery [2022-11-26 00:32:48,026 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_error_recovery [2022-11-26 00:32:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_eod [2022-11-26 00:32:48,026 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_eod [2022-11-26 00:32:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-26 00:32:48,026 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-26 00:32:48,026 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_forward_slow [2022-11-26 00:32:48,027 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_forward_slow [2022-11-26 00:32:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-11-26 00:32:48,027 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-11-26 00:32:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2022-11-26 00:32:48,027 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2022-11-26 00:32:48,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_6 [2022-11-26 00:32:48,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_6 [2022-11-26 00:32:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:32:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure osst_recover_wait_frame [2022-11-26 00:32:48,028 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_recover_wait_frame [2022-11-26 00:32:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_frame [2022-11-26 00:32:48,028 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_frame [2022-11-26 00:32:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:32:48,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:32:48,028 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-26 00:32:48,029 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-26 00:32:49,304 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:32:49,307 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:32:49,485 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-26 00:33:05,749 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:33:11,465 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:33:11,465 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-26 00:33:11,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:33:11 BoogieIcfgContainer [2022-11-26 00:33:11,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:33:11,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:33:11,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:33:11,476 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:33:11,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:32:43" (1/3) ... [2022-11-26 00:33:11,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e758e3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:33:11, skipping insertion in model container [2022-11-26 00:33:11,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:32:46" (2/3) ... [2022-11-26 00:33:11,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e758e3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:33:11, skipping insertion in model container [2022-11-26 00:33:11,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:33:11" (3/3) ... [2022-11-26 00:33:11,479 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--osst.ko-entry_point.cil.out.i [2022-11-26 00:33:11,500 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:33:11,500 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:33:11,597 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:33:11,603 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;@6b5dc79a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:33:11,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:33:11,618 INFO L276 IsEmpty]: Start isEmpty. Operand has 2235 states, 1525 states have (on average 1.4131147540983606) internal successors, (2155), 1555 states have internal predecessors, (2155), 616 states have call successors, (616), 93 states have call predecessors, (616), 92 states have return successors, (605), 602 states have call predecessors, (605), 605 states have call successors, (605) [2022-11-26 00:33:11,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2022-11-26 00:33:11,658 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:11,659 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:33:11,659 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:33:11,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:11,665 INFO L85 PathProgramCache]: Analyzing trace with hash -926489578, now seen corresponding path program 1 times [2022-11-26 00:33:11,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:11,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137953186] [2022-11-26 00:33:11,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:11,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:12,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:13,162 INFO L134 CoverageAnalysis]: Checked inductivity of 3196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3196 trivial. 0 not checked. [2022-11-26 00:33:13,162 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:13,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137953186] [2022-11-26 00:33:13,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137953186] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:13,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:13,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:33:13,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532656872] [2022-11-26 00:33:13,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:13,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:33:13,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:13,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:33:13,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:33:13,223 INFO L87 Difference]: Start difference. First operand has 2235 states, 1525 states have (on average 1.4131147540983606) internal successors, (2155), 1555 states have internal predecessors, (2155), 616 states have call successors, (616), 93 states have call predecessors, (616), 92 states have return successors, (605), 602 states have call predecessors, (605), 605 states have call successors, (605) Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-26 00:33:16,438 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 [] [2022-11-26 00:33:18,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:33:26,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:33:27,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:27,903 INFO L93 Difference]: Finished difference Result 6459 states and 9862 transitions. [2022-11-26 00:33:27,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:33:27,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 401 [2022-11-26 00:33:27,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:27,978 INFO L225 Difference]: With dead ends: 6459 [2022-11-26 00:33:27,979 INFO L226 Difference]: Without dead ends: 4259 [2022-11-26 00:33:28,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:33:28,009 INFO L413 NwaCegarLoop]: 3571 mSDtfsCounter, 3130 mSDsluCounter, 2973 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3130 SdHoareTripleChecker+Valid, 6544 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:28,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3130 Valid, 6544 Invalid, 736 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 730 Invalid, 3 Unknown, 0 Unchecked, 14.2s Time] [2022-11-26 00:33:28,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4259 states. [2022-11-26 00:33:28,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4259 to 4259. [2022-11-26 00:33:28,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4259 states, 2940 states have (on average 1.4068027210884353) internal successors, (4136), 2968 states have internal predecessors, (4136), 1139 states have call successors, (1139), 180 states have call predecessors, (1139), 179 states have return successors, (1138), 1133 states have call predecessors, (1138), 1138 states have call successors, (1138) [2022-11-26 00:33:28,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4259 states to 4259 states and 6413 transitions. [2022-11-26 00:33:28,384 INFO L78 Accepts]: Start accepts. Automaton has 4259 states and 6413 transitions. Word has length 401 [2022-11-26 00:33:28,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:28,386 INFO L495 AbstractCegarLoop]: Abstraction has 4259 states and 6413 transitions. [2022-11-26 00:33:28,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-11-26 00:33:28,386 INFO L276 IsEmpty]: Start isEmpty. Operand 4259 states and 6413 transitions. [2022-11-26 00:33:28,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2022-11-26 00:33:28,403 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:28,404 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:33:28,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:33:28,404 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:33:28,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:28,405 INFO L85 PathProgramCache]: Analyzing trace with hash -318101851, now seen corresponding path program 1 times [2022-11-26 00:33:28,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:28,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759048659] [2022-11-26 00:33:28,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:28,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:29,668 INFO L134 CoverageAnalysis]: Checked inductivity of 3196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3196 trivial. 0 not checked. [2022-11-26 00:33:29,668 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:29,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759048659] [2022-11-26 00:33:29,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759048659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:29,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:29,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:33:29,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632544835] [2022-11-26 00:33:29,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:29,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:33:29,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:29,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:33:29,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:33:29,675 INFO L87 Difference]: Start difference. First operand 4259 states and 6413 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2022-11-26 00:33:31,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:33:36,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:33:38,652 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:33:41,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:33:43,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:33:45,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:33:49,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:33:54,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:33:57,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:34:00,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:34:03,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:34:07,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:07,353 INFO L93 Difference]: Finished difference Result 12064 states and 18593 transitions. [2022-11-26 00:34:07,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:34:07,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) Word has length 410 [2022-11-26 00:34:07,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:07,426 INFO L225 Difference]: With dead ends: 12064 [2022-11-26 00:34:07,427 INFO L226 Difference]: Without dead ends: 7876 [2022-11-26 00:34:07,461 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 [2022-11-26 00:34:07,463 INFO L413 NwaCegarLoop]: 4464 mSDtfsCounter, 2472 mSDsluCounter, 7879 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 329 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2798 SdHoareTripleChecker+Valid, 12343 SdHoareTripleChecker+Invalid, 1751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:07,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2798 Valid, 12343 Invalid, 1751 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [329 Valid, 1414 Invalid, 8 Unknown, 0 Unchecked, 37.1s Time] [2022-11-26 00:34:07,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7876 states. [2022-11-26 00:34:07,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7876 to 4261. [2022-11-26 00:34:07,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4261 states, 2942 states have (on average 1.406526172671652) internal successors, (4138), 2970 states have internal predecessors, (4138), 1139 states have call successors, (1139), 180 states have call predecessors, (1139), 179 states have return successors, (1138), 1133 states have call predecessors, (1138), 1138 states have call successors, (1138) [2022-11-26 00:34:07,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4261 states to 4261 states and 6415 transitions. [2022-11-26 00:34:07,844 INFO L78 Accepts]: Start accepts. Automaton has 4261 states and 6415 transitions. Word has length 410 [2022-11-26 00:34:07,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:07,850 INFO L495 AbstractCegarLoop]: Abstraction has 4261 states and 6415 transitions. [2022-11-26 00:34:07,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (39), 1 states have call predecessors, (39), 1 states have call successors, (39) [2022-11-26 00:34:07,851 INFO L276 IsEmpty]: Start isEmpty. Operand 4261 states and 6415 transitions. [2022-11-26 00:34:07,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2022-11-26 00:34:07,862 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:07,862 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:34:07,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:34:07,863 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:34:07,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:07,873 INFO L85 PathProgramCache]: Analyzing trace with hash 2057708074, now seen corresponding path program 1 times [2022-11-26 00:34:07,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:07,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680898343] [2022-11-26 00:34:07,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:07,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:08,552 INFO L134 CoverageAnalysis]: Checked inductivity of 3196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3196 trivial. 0 not checked. [2022-11-26 00:34:08,552 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:08,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680898343] [2022-11-26 00:34:08,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680898343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:08,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:08,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:34:08,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3818843] [2022-11-26 00:34:08,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:08,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:34:08,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:08,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:34:08,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:34:08,557 INFO L87 Difference]: Start difference. First operand 4261 states and 6415 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-26 00:34:10,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:34:13,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:34:15,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:34:18,903 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:34:21,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:34:26,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:26,161 INFO L93 Difference]: Finished difference Result 8367 states and 12595 transitions. [2022-11-26 00:34:26,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:34:26,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 414 [2022-11-26 00:34:26,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:26,237 INFO L225 Difference]: With dead ends: 8367 [2022-11-26 00:34:26,237 INFO L226 Difference]: Without dead ends: 8336 [2022-11-26 00:34:26,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:34:26,249 INFO L413 NwaCegarLoop]: 3573 mSDtfsCounter, 3134 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3134 SdHoareTripleChecker+Valid, 6448 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:26,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3134 Valid, 6448 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 720 Invalid, 5 Unknown, 0 Unchecked, 17.3s Time] [2022-11-26 00:34:26,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8336 states. [2022-11-26 00:34:26,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8336 to 8336. [2022-11-26 00:34:26,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8336 states, 5776 states have (on average 1.4089335180055402) internal successors, (8138), 5826 states have internal predecessors, (8138), 2208 states have call successors, (2208), 352 states have call predecessors, (2208), 351 states have return successors, (2207), 2200 states have call predecessors, (2207), 2207 states have call successors, (2207) [2022-11-26 00:34:26,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8336 states to 8336 states and 12553 transitions. [2022-11-26 00:34:26,803 INFO L78 Accepts]: Start accepts. Automaton has 8336 states and 12553 transitions. Word has length 414 [2022-11-26 00:34:26,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:26,805 INFO L495 AbstractCegarLoop]: Abstraction has 8336 states and 12553 transitions. [2022-11-26 00:34:26,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-26 00:34:26,807 INFO L276 IsEmpty]: Start isEmpty. Operand 8336 states and 12553 transitions. [2022-11-26 00:34:26,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2022-11-26 00:34:26,830 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:26,831 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:34:26,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:34:26,831 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:34:26,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:26,833 INFO L85 PathProgramCache]: Analyzing trace with hash 364183726, now seen corresponding path program 1 times [2022-11-26 00:34:26,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:26,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910447426] [2022-11-26 00:34:26,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:26,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:27,101 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:34:27,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [631003689] [2022-11-26 00:34:27,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:27,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:34:27,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:34:27,111 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:34:27,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:34:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:29,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 5497 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:34:29,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:34:29,529 INFO L134 CoverageAnalysis]: Checked inductivity of 3205 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3198 trivial. 0 not checked. [2022-11-26 00:34:29,530 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:34:29,530 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:29,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910447426] [2022-11-26 00:34:29,530 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:34:29,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631003689] [2022-11-26 00:34:29,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631003689] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:29,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:29,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:34:29,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733776463] [2022-11-26 00:34:29,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:29,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:34:29,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:29,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:34:29,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:34:29,534 INFO L87 Difference]: Start difference. First operand 8336 states and 12553 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-26 00:34:31,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:34:33,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:34:37,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:34:39,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:34:42,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:34:45,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:34:47,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:47,316 INFO L93 Difference]: Finished difference Result 17598 states and 26453 transitions. [2022-11-26 00:34:47,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:34:47,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 463 [2022-11-26 00:34:47,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:47,392 INFO L225 Difference]: With dead ends: 17598 [2022-11-26 00:34:47,393 INFO L226 Difference]: Without dead ends: 9333 [2022-11-26 00:34:47,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 461 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:34:47,453 INFO L413 NwaCegarLoop]: 3019 mSDtfsCounter, 495 mSDsluCounter, 2823 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 12 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 5842 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:47,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 5842 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 746 Invalid, 3 Unknown, 0 Unchecked, 17.5s Time] [2022-11-26 00:34:47,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9333 states. [2022-11-26 00:34:47,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9333 to 9319. [2022-11-26 00:34:47,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9319 states, 6528 states have (on average 1.4134497549019607) internal successors, (9227), 6580 states have internal predecessors, (9227), 2366 states have call successors, (2366), 425 states have call predecessors, (2366), 424 states have return successors, (2365), 2358 states have call predecessors, (2365), 2365 states have call successors, (2365) [2022-11-26 00:34:47,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9319 states to 9319 states and 13958 transitions. [2022-11-26 00:34:47,995 INFO L78 Accepts]: Start accepts. Automaton has 9319 states and 13958 transitions. Word has length 463 [2022-11-26 00:34:47,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:47,996 INFO L495 AbstractCegarLoop]: Abstraction has 9319 states and 13958 transitions. [2022-11-26 00:34:47,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2022-11-26 00:34:47,997 INFO L276 IsEmpty]: Start isEmpty. Operand 9319 states and 13958 transitions. [2022-11-26 00:34:48,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2022-11-26 00:34:48,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:48,016 INFO L195 NwaCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:34:48,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:34:48,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:34:48,235 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:34:48,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:48,235 INFO L85 PathProgramCache]: Analyzing trace with hash 326476458, now seen corresponding path program 1 times [2022-11-26 00:34:48,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:48,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263341612] [2022-11-26 00:34:48,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:48,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:48,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:48,941 INFO L134 CoverageAnalysis]: Checked inductivity of 3221 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3216 trivial. 0 not checked. [2022-11-26 00:34:48,941 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:48,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263341612] [2022-11-26 00:34:48,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263341612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:48,942 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:48,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:34:48,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739138668] [2022-11-26 00:34:48,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:48,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:34:48,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:48,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:34:48,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:34:48,944 INFO L87 Difference]: Start difference. First operand 9319 states and 13958 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-26 00:34:50,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:34:53,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:34:56,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:34:59,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:35:01,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:35:04,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:35:07,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:35:07,285 INFO L93 Difference]: Finished difference Result 26969 states and 40447 transitions. [2022-11-26 00:35:07,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:35:07,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) Word has length 494 [2022-11-26 00:35:07,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:35:07,394 INFO L225 Difference]: With dead ends: 26969 [2022-11-26 00:35:07,394 INFO L226 Difference]: Without dead ends: 17724 [2022-11-26 00:35:07,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:35:07,444 INFO L413 NwaCegarLoop]: 3656 mSDtfsCounter, 3109 mSDsluCounter, 2868 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3109 SdHoareTripleChecker+Valid, 6524 SdHoareTripleChecker+Invalid, 760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:35:07,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3109 Valid, 6524 Invalid, 760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 755 Invalid, 3 Unknown, 0 Unchecked, 17.8s Time] [2022-11-26 00:35:07,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17724 states. [2022-11-26 00:35:08,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17724 to 17718. [2022-11-26 00:35:08,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17718 states, 12463 states have (on average 1.415710503089144) internal successors, (17644), 12557 states have internal predecessors, (17644), 4470 states have call successors, (4470), 785 states have call predecessors, (4470), 784 states have return successors, (4469), 4455 states have call predecessors, (4469), 4469 states have call successors, (4469) [2022-11-26 00:35:08,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17718 states to 17718 states and 26583 transitions. [2022-11-26 00:35:08,341 INFO L78 Accepts]: Start accepts. Automaton has 17718 states and 26583 transitions. Word has length 494 [2022-11-26 00:35:08,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:35:08,343 INFO L495 AbstractCegarLoop]: Abstraction has 17718 states and 26583 transitions. [2022-11-26 00:35:08,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (53), 2 states have call predecessors, (53), 2 states have call successors, (53) [2022-11-26 00:35:08,344 INFO L276 IsEmpty]: Start isEmpty. Operand 17718 states and 26583 transitions. [2022-11-26 00:35:08,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2022-11-26 00:35:08,386 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:08,386 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 27, 27, 27, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:35:08,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:35:08,386 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:35:08,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:08,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1277874669, now seen corresponding path program 1 times [2022-11-26 00:35:08,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:08,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069686288] [2022-11-26 00:35:08,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:08,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:08,731 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:35:08,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [38573484] [2022-11-26 00:35:08,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:08,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:35:08,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:35:08,735 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:35:08,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:35:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:11,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 5941 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:35:11,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:35:11,608 INFO L134 CoverageAnalysis]: Checked inductivity of 3734 backedges. 500 proven. 0 refuted. 0 times theorem prover too weak. 3234 trivial. 0 not checked. [2022-11-26 00:35:11,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:35:11,608 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:11,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069686288] [2022-11-26 00:35:11,608 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:35:11,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38573484] [2022-11-26 00:35:11,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38573484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:11,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:35:11,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:35:11,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726280682] [2022-11-26 00:35:11,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:11,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:35:11,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:11,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:35:11,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:35:11,612 INFO L87 Difference]: Start difference. First operand 17718 states and 26583 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-26 00:35:13,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:35:16,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:35:19,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:35:22,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:35:24,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:35:28,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:35:28,265 INFO L93 Difference]: Finished difference Result 30694 states and 46104 transitions. [2022-11-26 00:35:28,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:35:28,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 524 [2022-11-26 00:35:28,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:35:28,445 INFO L225 Difference]: With dead ends: 30694 [2022-11-26 00:35:28,445 INFO L226 Difference]: Without dead ends: 30590 [2022-11-26 00:35:28,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 522 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:35:28,467 INFO L413 NwaCegarLoop]: 3927 mSDtfsCounter, 3080 mSDsluCounter, 2839 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3080 SdHoareTripleChecker+Valid, 6766 SdHoareTripleChecker+Invalid, 787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:35:28,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3080 Valid, 6766 Invalid, 787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 780 Invalid, 4 Unknown, 0 Unchecked, 15.9s Time] [2022-11-26 00:35:28,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30590 states. [2022-11-26 00:35:29,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30590 to 30371. [2022-11-26 00:35:29,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30371 states, 21361 states have (on average 1.4165535321380085) internal successors, (30259), 21515 states have internal predecessors, (30259), 7690 states have call successors, (7690), 1320 states have call predecessors, (7690), 1319 states have return successors, (7689), 7669 states have call predecessors, (7689), 7689 states have call successors, (7689) [2022-11-26 00:35:30,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30371 states to 30371 states and 45638 transitions. [2022-11-26 00:35:30,163 INFO L78 Accepts]: Start accepts. Automaton has 30371 states and 45638 transitions. Word has length 524 [2022-11-26 00:35:30,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:35:30,164 INFO L495 AbstractCegarLoop]: Abstraction has 30371 states and 45638 transitions. [2022-11-26 00:35:30,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 3 states have call successors, (56), 3 states have call predecessors, (56), 3 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-26 00:35:30,164 INFO L276 IsEmpty]: Start isEmpty. Operand 30371 states and 45638 transitions. [2022-11-26 00:35:30,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2022-11-26 00:35:30,225 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:35:30,225 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 26, 26, 26, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:35:30,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:35:30,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-26 00:35:30,435 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:35:30,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:35:30,436 INFO L85 PathProgramCache]: Analyzing trace with hash 686258899, now seen corresponding path program 1 times [2022-11-26 00:35:30,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:35:30,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040482712] [2022-11-26 00:35:30,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:35:30,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:35:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:35:31,409 INFO L134 CoverageAnalysis]: Checked inductivity of 3508 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3491 trivial. 0 not checked. [2022-11-26 00:35:31,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:35:31,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040482712] [2022-11-26 00:35:31,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040482712] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:35:31,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:35:31,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:35:31,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816752773] [2022-11-26 00:35:31,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:35:31,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:35:31,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:35:31,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:35:31,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:35:31,413 INFO L87 Difference]: Start difference. First operand 30371 states and 45638 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-11-26 00:35:33,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:35:36,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:35:39,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:35:42,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:35:44,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:35:46,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:35:48,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:35:51,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:35:53,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:35:55,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:35:57,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:35:59,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:36:03,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:36:08,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:08,731 INFO L93 Difference]: Finished difference Result 88153 states and 135579 transitions. [2022-11-26 00:36:08,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:36:08,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 544 [2022-11-26 00:36:08,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:09,272 INFO L225 Difference]: With dead ends: 88153 [2022-11-26 00:36:09,272 INFO L226 Difference]: Without dead ends: 57866 [2022-11-26 00:36:09,413 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 [2022-11-26 00:36:09,414 INFO L413 NwaCegarLoop]: 4520 mSDtfsCounter, 2169 mSDsluCounter, 7801 mSDsCounter, 0 mSdLazyCounter, 1415 mSolverCounterSat, 317 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2485 SdHoareTripleChecker+Valid, 12321 SdHoareTripleChecker+Invalid, 1740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 317 IncrementalHoareTripleChecker+Valid, 1415 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:09,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2485 Valid, 12321 Invalid, 1740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [317 Valid, 1415 Invalid, 8 Unknown, 0 Unchecked, 35.4s Time] [2022-11-26 00:36:09,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57866 states. [2022-11-26 00:36:11,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57866 to 30399. [2022-11-26 00:36:11,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30399 states, 21389 states have (on average 1.416008228528683) internal successors, (30287), 21543 states have internal predecessors, (30287), 7690 states have call successors, (7690), 1320 states have call predecessors, (7690), 1319 states have return successors, (7689), 7669 states have call predecessors, (7689), 7689 states have call successors, (7689) [2022-11-26 00:36:11,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30399 states to 30399 states and 45666 transitions. [2022-11-26 00:36:11,893 INFO L78 Accepts]: Start accepts. Automaton has 30399 states and 45666 transitions. Word has length 544 [2022-11-26 00:36:11,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:11,894 INFO L495 AbstractCegarLoop]: Abstraction has 30399 states and 45666 transitions. [2022-11-26 00:36:11,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-11-26 00:36:11,895 INFO L276 IsEmpty]: Start isEmpty. Operand 30399 states and 45666 transitions. [2022-11-26 00:36:11,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 537 [2022-11-26 00:36:11,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:11,965 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:11,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:36:11,966 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:36:11,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:11,966 INFO L85 PathProgramCache]: Analyzing trace with hash 547740560, now seen corresponding path program 1 times [2022-11-26 00:36:11,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:11,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942303762] [2022-11-26 00:36:11,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:11,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:12,226 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:36:12,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [473359000] [2022-11-26 00:36:12,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:12,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:36:12,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:36:12,235 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:36:12,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:36:14,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:15,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 6029 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:36:15,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:36:15,201 INFO L134 CoverageAnalysis]: Checked inductivity of 4004 backedges. 776 proven. 0 refuted. 0 times theorem prover too weak. 3228 trivial. 0 not checked. [2022-11-26 00:36:15,202 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:36:15,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:15,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942303762] [2022-11-26 00:36:15,202 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:36:15,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473359000] [2022-11-26 00:36:15,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473359000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:15,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:15,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:36:15,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269584103] [2022-11-26 00:36:15,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:15,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:36:15,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:15,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:36:15,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:36:15,205 INFO L87 Difference]: Start difference. First operand 30399 states and 45666 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2022-11-26 00:36:19,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:36:22,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:36:26,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:36:29,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:36:31,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:31,119 INFO L93 Difference]: Finished difference Result 78094 states and 116451 transitions. [2022-11-26 00:36:31,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:36:31,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 536 [2022-11-26 00:36:31,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:31,383 INFO L225 Difference]: With dead ends: 78094 [2022-11-26 00:36:31,384 INFO L226 Difference]: Without dead ends: 47779 [2022-11-26 00:36:31,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 535 GetRequests, 534 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:36:31,678 INFO L413 NwaCegarLoop]: 3316 mSDtfsCounter, 2498 mSDsluCounter, 2350 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 17 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2498 SdHoareTripleChecker+Valid, 5666 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:31,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2498 Valid, 5666 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 695 Invalid, 4 Unknown, 0 Unchecked, 14.2s Time] [2022-11-26 00:36:31,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47779 states. [2022-11-26 00:36:33,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47779 to 47756. [2022-11-26 00:36:33,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47756 states, 33407 states have (on average 1.401203340617236) internal successors, (46810), 33666 states have internal predecessors, (46810), 11999 states have call successors, (11999), 2350 states have call predecessors, (11999), 2349 states have return successors, (11998), 11964 states have call predecessors, (11998), 11998 states have call successors, (11998) [2022-11-26 00:36:34,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47756 states to 47756 states and 70807 transitions. [2022-11-26 00:36:34,124 INFO L78 Accepts]: Start accepts. Automaton has 47756 states and 70807 transitions. Word has length 536 [2022-11-26 00:36:34,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:36:34,125 INFO L495 AbstractCegarLoop]: Abstraction has 47756 states and 70807 transitions. [2022-11-26 00:36:34,125 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2022-11-26 00:36:34,126 INFO L276 IsEmpty]: Start isEmpty. Operand 47756 states and 70807 transitions. [2022-11-26 00:36:34,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2022-11-26 00:36:34,392 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:36:34,392 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 26, 26, 26, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:36:34,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:36:34,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:36:34,594 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:36:34,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:36:34,594 INFO L85 PathProgramCache]: Analyzing trace with hash 651514774, now seen corresponding path program 1 times [2022-11-26 00:36:34,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:36:34,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860258322] [2022-11-26 00:36:34,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:36:34,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:36:34,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:36:35,749 INFO L134 CoverageAnalysis]: Checked inductivity of 3508 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3491 trivial. 0 not checked. [2022-11-26 00:36:35,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:36:35,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860258322] [2022-11-26 00:36:35,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860258322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:36:35,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:36:35,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:36:35,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524515789] [2022-11-26 00:36:35,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:36:35,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:36:35,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:36:35,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:36:35,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:36:35,754 INFO L87 Difference]: Start difference. First operand 47756 states and 70807 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-11-26 00:36:37,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:36:38,795 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:36:41,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:36:45,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:36:48,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:36:52,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:36:54,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:36:57,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:36:57,114 INFO L93 Difference]: Finished difference Result 86232 states and 129350 transitions. [2022-11-26 00:36:57,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:36:57,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 547 [2022-11-26 00:36:57,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:36:57,647 INFO L225 Difference]: With dead ends: 86232 [2022-11-26 00:36:57,648 INFO L226 Difference]: Without dead ends: 58933 [2022-11-26 00:36:57,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:36:57,809 INFO L413 NwaCegarLoop]: 3855 mSDtfsCounter, 658 mSDsluCounter, 3133 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 6988 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:36:57,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 6988 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 818 Invalid, 3 Unknown, 0 Unchecked, 19.3s Time] [2022-11-26 00:36:57,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58933 states. [2022-11-26 00:36:59,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58933 to 47758. [2022-11-26 00:37:00,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47758 states, 33409 states have (on average 1.4011793229369331) internal successors, (46812), 33668 states have internal predecessors, (46812), 11999 states have call successors, (11999), 2350 states have call predecessors, (11999), 2349 states have return successors, (11998), 11964 states have call predecessors, (11998), 11998 states have call successors, (11998) [2022-11-26 00:37:00,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47758 states to 47758 states and 70809 transitions. [2022-11-26 00:37:00,268 INFO L78 Accepts]: Start accepts. Automaton has 47758 states and 70809 transitions. Word has length 547 [2022-11-26 00:37:00,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:37:00,269 INFO L495 AbstractCegarLoop]: Abstraction has 47758 states and 70809 transitions. [2022-11-26 00:37:00,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-11-26 00:37:00,269 INFO L276 IsEmpty]: Start isEmpty. Operand 47758 states and 70809 transitions. [2022-11-26 00:37:00,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2022-11-26 00:37:00,326 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:37:00,327 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 26, 26, 26, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:37:00,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:37:00,327 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:37:00,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:37:00,328 INFO L85 PathProgramCache]: Analyzing trace with hash -46846849, now seen corresponding path program 1 times [2022-11-26 00:37:00,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:37:00,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421913844] [2022-11-26 00:37:00,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:37:00,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:37:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:37:01,616 INFO L134 CoverageAnalysis]: Checked inductivity of 3510 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 3492 trivial. 0 not checked. [2022-11-26 00:37:01,617 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:37:01,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421913844] [2022-11-26 00:37:01,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421913844] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:37:01,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565021734] [2022-11-26 00:37:01,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:37:01,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:37:01,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:37:01,619 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:37:01,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:37:04,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:37:04,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 6386 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:37:04,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:37:05,926 INFO L134 CoverageAnalysis]: Checked inductivity of 3510 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3510 trivial. 0 not checked. [2022-11-26 00:37:05,926 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:37:05,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565021734] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:37:05,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:37:05,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-26 00:37:05,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227377124] [2022-11-26 00:37:05,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:37:05,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:37:05,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:37:05,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:37:05,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:37:05,930 INFO L87 Difference]: Start difference. First operand 47758 states and 70809 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) [2022-11-26 00:37:07,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:37:09,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:37:12,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:37:16,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:37:19,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:37:24,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:37:24,338 INFO L93 Difference]: Finished difference Result 68371 states and 101371 transitions. [2022-11-26 00:37:24,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:37:24,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) Word has length 549 [2022-11-26 00:37:24,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:37:24,897 INFO L225 Difference]: With dead ends: 68371 [2022-11-26 00:37:24,897 INFO L226 Difference]: Without dead ends: 68291 [2022-11-26 00:37:24,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 549 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:37:24,922 INFO L413 NwaCegarLoop]: 3545 mSDtfsCounter, 3062 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3062 SdHoareTripleChecker+Valid, 6420 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:37:24,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3062 Valid, 6420 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 712 Invalid, 4 Unknown, 0 Unchecked, 16.4s Time] [2022-11-26 00:37:24,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68291 states. [2022-11-26 00:37:27,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68291 to 68183. [2022-11-26 00:37:27,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68183 states, 47701 states have (on average 1.4011865579337959) internal successors, (66838), 48069 states have internal predecessors, (66838), 17127 states have call successors, (17127), 3355 states have call predecessors, (17127), 3354 states have return successors, (17126), 17079 states have call predecessors, (17126), 17126 states have call successors, (17126) [2022-11-26 00:37:28,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68183 states to 68183 states and 101091 transitions. [2022-11-26 00:37:28,099 INFO L78 Accepts]: Start accepts. Automaton has 68183 states and 101091 transitions. Word has length 549 [2022-11-26 00:37:28,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:37:28,100 INFO L495 AbstractCegarLoop]: Abstraction has 68183 states and 101091 transitions. [2022-11-26 00:37:28,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (57), 1 states have call predecessors, (57), 1 states have call successors, (57) [2022-11-26 00:37:28,100 INFO L276 IsEmpty]: Start isEmpty. Operand 68183 states and 101091 transitions. [2022-11-26 00:37:28,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2022-11-26 00:37:28,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:37:28,219 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:37:28,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-26 00:37:28,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-26 00:37:28,420 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:37:28,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:37:28,420 INFO L85 PathProgramCache]: Analyzing trace with hash 43243576, now seen corresponding path program 1 times [2022-11-26 00:37:28,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:37:28,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615520451] [2022-11-26 00:37:28,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:37:28,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:37:28,973 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:37:28,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1397212924] [2022-11-26 00:37:28,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:37:28,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:37:28,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:37:28,975 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:37:28,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-26 00:37:31,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:37:31,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 6248 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:37:31,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:37:33,231 INFO L134 CoverageAnalysis]: Checked inductivity of 4039 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4039 trivial. 0 not checked. [2022-11-26 00:37:33,232 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:37:33,232 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:37:33,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615520451] [2022-11-26 00:37:33,232 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:37:33,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397212924] [2022-11-26 00:37:33,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397212924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:37:33,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:37:33,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:37:33,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436203926] [2022-11-26 00:37:33,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:37:33,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:37:33,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:37:33,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:37:33,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:37:33,236 INFO L87 Difference]: Start difference. First operand 68183 states and 101091 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 2 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2022-11-26 00:37:36,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:37:40,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:37:42,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:37:45,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:37:48,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:37:51,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:37:54,224 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 [] [2022-11-26 00:37:56,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:37:56,941 INFO L93 Difference]: Finished difference Result 88748 states and 131581 transitions. [2022-11-26 00:37:56,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:37:56,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 2 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) Word has length 575 [2022-11-26 00:37:56,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:37:57,331 INFO L225 Difference]: With dead ends: 88748 [2022-11-26 00:37:57,332 INFO L226 Difference]: Without dead ends: 88668 [2022-11-26 00:37:57,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 574 GetRequests, 573 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:37:57,369 INFO L413 NwaCegarLoop]: 3616 mSDtfsCounter, 2977 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 0 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2977 SdHoareTripleChecker+Valid, 6491 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:37:57,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2977 Valid, 6491 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 724 Invalid, 6 Unknown, 0 Unchecked, 21.0s Time] [2022-11-26 00:37:57,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88668 states. [2022-11-26 00:38:00,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88668 to 88560. [2022-11-26 00:38:00,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88560 states, 61963 states have (on average 1.4011910333586173) internal successors, (86822), 62438 states have internal predecessors, (86822), 22240 states have call successors, (22240), 4357 states have call predecessors, (22240), 4356 states have return successors, (22239), 22180 states have call predecessors, (22239), 22239 states have call successors, (22239) [2022-11-26 00:38:01,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88560 states to 88560 states and 131301 transitions. [2022-11-26 00:38:01,135 INFO L78 Accepts]: Start accepts. Automaton has 88560 states and 131301 transitions. Word has length 575 [2022-11-26 00:38:01,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:38:01,136 INFO L495 AbstractCegarLoop]: Abstraction has 88560 states and 131301 transitions. [2022-11-26 00:38:01,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 2 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (60), 1 states have call predecessors, (60), 1 states have call successors, (60) [2022-11-26 00:38:01,136 INFO L276 IsEmpty]: Start isEmpty. Operand 88560 states and 131301 transitions. [2022-11-26 00:38:01,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2022-11-26 00:38:01,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:38:01,596 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:38:01,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-26 00:38:01,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:38:01,797 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:38:01,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:38:01,798 INFO L85 PathProgramCache]: Analyzing trace with hash 47697487, now seen corresponding path program 1 times [2022-11-26 00:38:01,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:38:01,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919526092] [2022-11-26 00:38:01,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:38:01,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:38:02,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:38:02,896 INFO L134 CoverageAnalysis]: Checked inductivity of 4041 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 4015 trivial. 0 not checked. [2022-11-26 00:38:02,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:38:02,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919526092] [2022-11-26 00:38:02,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919526092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:38:02,898 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:38:02,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:38:02,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055871150] [2022-11-26 00:38:02,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:38:02,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:38:02,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:38:02,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:38:02,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:38:02,901 INFO L87 Difference]: Start difference. First operand 88560 states and 131301 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-11-26 00:38:04,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:38:06,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:38:09,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:38:12,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:38:14,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:38:17,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:38:21,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:38:24,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:38:24,587 INFO L93 Difference]: Finished difference Result 177062 states and 262538 transitions. [2022-11-26 00:38:24,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:38:24,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 592 [2022-11-26 00:38:24,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:38:25,038 INFO L225 Difference]: With dead ends: 177062 [2022-11-26 00:38:25,038 INFO L226 Difference]: Without dead ends: 88586 [2022-11-26 00:38:25,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:38:25,484 INFO L413 NwaCegarLoop]: 2977 mSDtfsCounter, 0 mSDsluCounter, 2976 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5953 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:38:25,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5953 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 714 Invalid, 4 Unknown, 0 Unchecked, 18.2s Time] [2022-11-26 00:38:25,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88586 states. [2022-11-26 00:38:28,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88586 to 88586. [2022-11-26 00:38:28,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88586 states, 61989 states have (on average 1.4010227621029538) internal successors, (86848), 62464 states have internal predecessors, (86848), 22240 states have call successors, (22240), 4357 states have call predecessors, (22240), 4356 states have return successors, (22239), 22180 states have call predecessors, (22239), 22239 states have call successors, (22239) [2022-11-26 00:38:29,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88586 states to 88586 states and 131327 transitions. [2022-11-26 00:38:29,359 INFO L78 Accepts]: Start accepts. Automaton has 88586 states and 131327 transitions. Word has length 592 [2022-11-26 00:38:29,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:38:29,360 INFO L495 AbstractCegarLoop]: Abstraction has 88586 states and 131327 transitions. [2022-11-26 00:38:29,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2022-11-26 00:38:29,360 INFO L276 IsEmpty]: Start isEmpty. Operand 88586 states and 131327 transitions. [2022-11-26 00:38:29,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2022-11-26 00:38:29,503 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:38:29,503 INFO L195 NwaCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 28, 28, 28, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:38:29,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-26 00:38:29,503 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:38:29,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:38:29,504 INFO L85 PathProgramCache]: Analyzing trace with hash 232879350, now seen corresponding path program 1 times [2022-11-26 00:38:29,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:38:29,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435997475] [2022-11-26 00:38:29,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:38:29,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:38:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:38:30,715 INFO L134 CoverageAnalysis]: Checked inductivity of 4042 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 4015 trivial. 0 not checked. [2022-11-26 00:38:30,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:38:30,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435997475] [2022-11-26 00:38:30,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435997475] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:38:30,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706955251] [2022-11-26 00:38:30,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:38:30,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:38:30,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:38:30,718 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:38:30,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-26 00:38:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:38:33,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 5954 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 00:38:33,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:38:34,827 INFO L134 CoverageAnalysis]: Checked inductivity of 4042 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4042 trivial. 0 not checked. [2022-11-26 00:38:34,827 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:38:34,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706955251] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:38:34,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:38:34,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-26 00:38:34,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533998540] [2022-11-26 00:38:34,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:38:34,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:38:34,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:38:34,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:38:34,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:38:34,831 INFO L87 Difference]: Start difference. First operand 88586 states and 131327 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2022-11-26 00:38:36,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:38:39,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:38:43,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:38:47,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:38:50,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:38:53,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-26 00:38:56,027 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 [] [2022-11-26 00:38:59,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:38:59,004 INFO L93 Difference]: Finished difference Result 115839 states and 171740 transitions. [2022-11-26 00:38:59,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:38:59,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 593 [2022-11-26 00:38:59,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:38:59,583 INFO L225 Difference]: With dead ends: 115839 [2022-11-26 00:38:59,584 INFO L226 Difference]: Without dead ends: 115759 [2022-11-26 00:38:59,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 596 GetRequests, 593 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:38:59,629 INFO L413 NwaCegarLoop]: 3641 mSDtfsCounter, 2984 mSDsluCounter, 2875 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2984 SdHoareTripleChecker+Valid, 6516 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:38:59,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2984 Valid, 6516 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 727 Invalid, 5 Unknown, 0 Unchecked, 21.0s Time] [2022-11-26 00:38:59,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115759 states. [2022-11-26 00:39:03,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115759 to 115651. [2022-11-26 00:39:03,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115651 states, 80923 states have (on average 1.4009737651841874) internal successors, (113371), 81544 states have internal predecessors, (113371), 29045 states have call successors, (29045), 5683 states have call predecessors, (29045), 5682 states have return successors, (29044), 28965 states have call predecessors, (29044), 29044 states have call successors, (29044) [2022-11-26 00:39:04,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115651 states to 115651 states and 171460 transitions. [2022-11-26 00:39:04,755 INFO L78 Accepts]: Start accepts. Automaton has 115651 states and 171460 transitions. Word has length 593 [2022-11-26 00:39:04,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:39:04,756 INFO L495 AbstractCegarLoop]: Abstraction has 115651 states and 171460 transitions. [2022-11-26 00:39:04,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 2 states have internal predecessors, (151), 2 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2022-11-26 00:39:04,756 INFO L276 IsEmpty]: Start isEmpty. Operand 115651 states and 171460 transitions. [2022-11-26 00:39:04,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2022-11-26 00:39:04,973 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:39:04,973 INFO L195 NwaCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 26, 26, 26, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:39:04,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-26 00:39:05,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:39:05,174 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:39:05,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:39:05,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1622312791, now seen corresponding path program 1 times [2022-11-26 00:39:05,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:39:05,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662662714] [2022-11-26 00:39:05,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:39:05,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:39:05,807 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-26 00:39:05,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1314600138] [2022-11-26 00:39:05,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:39:05,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:39:05,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:39:05,809 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:39:05,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48f1ee59-b97c-4612-a712-280f62c50929/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-26 00:39:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:39:08,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 7399 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 00:39:08,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:39:09,330 INFO L134 CoverageAnalysis]: Checked inductivity of 3533 backedges. 276 proven. 0 refuted. 0 times theorem prover too weak. 3257 trivial. 0 not checked. [2022-11-26 00:39:09,331 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:39:09,331 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:39:09,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662662714] [2022-11-26 00:39:09,331 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-26 00:39:09,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314600138] [2022-11-26 00:39:09,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314600138] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:39:09,332 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:39:09,332 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:39:09,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627269259] [2022-11-26 00:39:09,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:39:09,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:39:09,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:39:09,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:39:09,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:39:09,335 INFO L87 Difference]: Start difference. First operand 115651 states and 171460 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 3 states have call successors, (69), 3 states have call predecessors, (69), 3 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2022-11-26 00:39:13,190 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 []