./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2ecffe8a5f60817da30887d6b361935e398ff8703e4fd5b17747e558625c4088 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 10:21:17,095 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:21:17,097 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:21:17,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:21:17,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:21:17,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:21:17,111 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:21:17,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:21:17,113 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:21:17,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:21:17,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:21:17,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:21:17,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:21:17,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:21:17,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:21:17,117 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:21:17,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:21:17,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:21:17,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:21:17,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:21:17,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:21:17,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:21:17,123 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:21:17,124 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:21:17,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:21:17,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:21:17,126 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:21:17,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:21:17,127 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:21:17,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:21:17,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:21:17,128 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:21:17,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:21:17,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:21:17,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:21:17,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:21:17,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:21:17,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:21:17,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:21:17,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:21:17,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:21:17,133 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 10:21:17,156 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:21:17,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:21:17,157 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:21:17,157 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:21:17,158 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:21:17,158 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:21:17,158 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:21:17,158 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:21:17,158 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:21:17,158 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:21:17,159 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:21:17,159 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:21:17,159 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:21:17,159 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:21:17,159 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:21:17,159 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:21:17,160 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:21:17,160 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:21:17,160 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:21:17,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:21:17,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:21:17,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:21:17,161 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:21:17,161 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:21:17,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:21:17,161 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:21:17,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:21:17,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:21:17,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:21:17,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:21:17,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:21:17,162 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:21:17,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:21:17,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:21:17,162 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:21:17,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:21:17,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:21:17,163 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:21:17,163 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_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ecffe8a5f60817da30887d6b361935e398ff8703e4fd5b17747e558625c4088 [2022-12-14 10:21:17,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:21:17,380 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:21:17,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:21:17,382 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:21:17,383 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:21:17,383 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-12-14 10:21:19,986 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:21:20,340 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:21:20,341 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-12-14 10:21:20,365 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/data/9fa6d7043/418247fe72434fe8b8bf51df81443712/FLAGbfdc7f0bf [2022-12-14 10:21:20,375 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/data/9fa6d7043/418247fe72434fe8b8bf51df81443712 [2022-12-14 10:21:20,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:21:20,378 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:21:20,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:21:20,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:21:20,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:21:20,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:21:20" (1/1) ... [2022-12-14 10:21:20,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@523ee1f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:21:20, skipping insertion in model container [2022-12-14 10:21:20,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:21:20" (1/1) ... [2022-12-14 10:21:20,391 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:21:20,507 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:21:20,938 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 10:21:21,191 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 10:21:21,227 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-12-14 10:21:21,254 WARN L623 FunctionHandler]: Unknown extern function __register_chrdev [2022-12-14 10:21:21,259 WARN L623 FunctionHandler]: Unknown extern function __unregister_chrdev [2022-12-14 10:21:21,387 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 10:21:21,388 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 10:21:21,389 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 10:21:21,389 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 10:21:21,396 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 10:21:21,396 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 10:21:21,550 WARN L623 FunctionHandler]: Unknown extern function scsi_normalize_sense [2022-12-14 10:21:21,551 WARN L623 FunctionHandler]: Unknown extern function scsi_get_sense_info_fld [2022-12-14 10:21:21,553 WARN L623 FunctionHandler]: Unknown extern function scsi_sense_desc_find [2022-12-14 10:21:21,562 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,563 WARN L623 FunctionHandler]: Unknown extern function __scsi_print_sense [2022-12-14 10:21:21,563 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,564 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,565 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,574 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-14 10:21:21,575 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:21:21,575 WARN L623 FunctionHandler]: Unknown extern function blk_rq_unmap_user [2022-12-14 10:21:21,575 WARN L623 FunctionHandler]: Unknown extern function __blk_put_request [2022-12-14 10:21:21,584 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:21:21,589 WARN L623 FunctionHandler]: Unknown extern function blk_get_request [2022-12-14 10:21:21,591 WARN L623 FunctionHandler]: Unknown extern function sg_next [2022-12-14 10:21:21,592 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_user [2022-12-14 10:21:21,593 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:21:21,593 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_kern [2022-12-14 10:21:21,595 WARN L623 FunctionHandler]: Unknown extern function blk_execute_rq_nowait [2022-12-14 10:21:21,595 WARN L623 FunctionHandler]: Unknown extern function blk_put_request [2022-12-14 10:21:21,601 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,602 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,607 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-12-14 10:21:21,613 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-12-14 10:21:21,615 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,636 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 10:21:21,637 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 10:21:21,639 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,643 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,651 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 10:21:21,651 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 10:21:21,652 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 10:21:21,661 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 10:21:21,679 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,681 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 10:21:21,689 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 10:21:21,691 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,692 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,709 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,715 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,719 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,722 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,738 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,766 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-12-14 10:21:21,767 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,769 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,769 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:21:21,772 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,772 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:21:21,776 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 10:21:21,777 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,778 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:21:21,779 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,781 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:21:21,789 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-12-14 10:21:21,789 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 10:21:21,792 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,792 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,793 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-12-14 10:21:21,793 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 10:21:21,794 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,798 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,799 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,801 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,802 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,803 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,813 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,815 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,834 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,835 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,837 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,839 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,862 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,869 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,877 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-12-14 10:21:21,878 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,900 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,914 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,915 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,916 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 10:21:21,917 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 10:21:21,918 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 10:21:21,920 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 10:21:21,921 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,921 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,922 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-12-14 10:21:21,923 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,926 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,927 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,927 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,928 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,928 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,929 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,929 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,930 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,930 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,930 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,931 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,931 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,932 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,932 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,933 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,941 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,957 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,958 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,959 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,960 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,962 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,963 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,965 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,971 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,974 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,976 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,980 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:21,992 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,007 WARN L623 FunctionHandler]: Unknown extern function scsi_ioctl [2022-12-14 10:21:22,016 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-14 10:21:22,017 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,017 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,019 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,019 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,020 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,029 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-14 10:21:22,030 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,032 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,038 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,038 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,038 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,039 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,045 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,045 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,046 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,046 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,046 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,047 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,047 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,048 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,048 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,048 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,049 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,049 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,049 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,057 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,057 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,067 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-12-14 10:21:22,067 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,067 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,068 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,068 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,068 WARN L623 FunctionHandler]: Unknown extern function scsi_device_get [2022-12-14 10:21:22,068 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,069 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,069 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-14 10:21:22,070 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,071 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,075 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,078 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,080 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,080 WARN L623 FunctionHandler]: Unknown extern function scsi_device_put [2022-12-14 10:21:22,091 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,091 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,092 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,092 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,092 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,092 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,097 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-12-14 10:21:22,097 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,097 WARN L623 FunctionHandler]: Unknown extern function scsi_device_put [2022-12-14 10:21:22,102 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-14 10:21:22,103 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 10:21:22,103 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,111 WARN L623 FunctionHandler]: Unknown extern function scsi_ioctl [2022-12-14 10:21:22,119 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,120 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,121 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,121 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,123 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 10:21:22,124 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,125 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,125 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,126 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,127 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,128 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,129 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,131 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,141 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 10:21:22,142 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 10:21:22,142 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 10:21:22,152 WARN L623 FunctionHandler]: Unknown extern function driver_create_file [2022-12-14 10:21:22,155 WARN L623 FunctionHandler]: Unknown extern function driver_remove_file [2022-12-14 10:21:22,159 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:21:22,164 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:21:22,169 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:21:22,174 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:21:22,178 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:21:22,183 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:21:22,187 WARN L623 FunctionHandler]: Unknown extern function __class_create [2022-12-14 10:21:22,188 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,191 WARN L623 FunctionHandler]: Unknown extern function device_destroy [2022-12-14 10:21:22,195 WARN L623 FunctionHandler]: Unknown extern function device_create [2022-12-14 10:21:22,196 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,196 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 10:21:22,196 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 10:21:22,197 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 10:21:22,197 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 10:21:22,197 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 10:21:22,197 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 10:21:22,202 WARN L623 FunctionHandler]: Unknown extern function class_destroy [2022-12-14 10:21:22,203 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-12-14 10:21:22,204 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,204 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-12-14 10:21:22,204 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,205 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,205 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,205 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,206 WARN L623 FunctionHandler]: Unknown extern function panic [2022-12-14 10:21:22,206 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,206 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,207 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,207 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,207 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:21:22,207 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 10:21:22,208 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 10:21:22,208 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 10:21:22,210 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 10:21:22,210 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,211 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 10:21:22,212 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:21:22,212 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-14 10:21:22,213 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-12-14 10:21:22,214 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-14 10:21:22,214 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,214 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:21:22,214 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:21:22,214 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:21:22,215 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,218 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,219 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,220 WARN L623 FunctionHandler]: Unknown extern function scsi_register_driver [2022-12-14 10:21:22,220 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-12-14 10:21:22,224 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-12-14 10:21:22,225 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:21:22,225 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:21:22,225 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-14 10:21:22,225 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:21:22,226 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:21:22,226 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,247 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 10:21:22,247 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-14 10:21:22,248 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value_probe [2022-12-14 10:21:22,248 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 10:21:22,248 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 10:21:22,248 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-14 10:21:22,248 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 10:21:22,249 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-14 10:21:22,249 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 10:21:22,249 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-14 10:21:22,249 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 10:21:22,250 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 10:21:22,250 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 10:21:22,250 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 10:21:22,250 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 10:21:22,251 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 10:21:22,251 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:21:22,251 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 10:21:22,251 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 10:21:22,252 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:21:22,252 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-12-14 10:21:22,252 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:21:22,253 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-12-14 10:21:22,253 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:21:22,253 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 10:21:22,253 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:21:22,254 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 10:21:22,254 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-12-14 10:21:22,254 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:21:22,254 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:21:22,255 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:21:22,255 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:21:22,255 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:21:22,259 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_eb78b195-9ab3-4710-b449-4a32547aaf74/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[331724,331737] [2022-12-14 10:21:22,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:21:22,370 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:21:22,430 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 10:21:22,433 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 10:21:22,433 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-12-14 10:21:22,434 WARN L623 FunctionHandler]: Unknown extern function __register_chrdev [2022-12-14 10:21:22,434 WARN L623 FunctionHandler]: Unknown extern function __unregister_chrdev [2022-12-14 10:21:22,458 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 10:21:22,459 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 10:21:22,459 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 10:21:22,459 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 10:21:22,460 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-12-14 10:21:22,460 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 10:21:22,464 WARN L623 FunctionHandler]: Unknown extern function scsi_normalize_sense [2022-12-14 10:21:22,464 WARN L623 FunctionHandler]: Unknown extern function scsi_get_sense_info_fld [2022-12-14 10:21:22,465 WARN L623 FunctionHandler]: Unknown extern function scsi_sense_desc_find [2022-12-14 10:21:22,466 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,466 WARN L623 FunctionHandler]: Unknown extern function __scsi_print_sense [2022-12-14 10:21:22,467 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,467 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,467 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,468 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-14 10:21:22,469 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:21:22,469 WARN L623 FunctionHandler]: Unknown extern function blk_rq_unmap_user [2022-12-14 10:21:22,469 WARN L623 FunctionHandler]: Unknown extern function __blk_put_request [2022-12-14 10:21:22,472 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:21:22,472 WARN L623 FunctionHandler]: Unknown extern function blk_get_request [2022-12-14 10:21:22,473 WARN L623 FunctionHandler]: Unknown extern function sg_next [2022-12-14 10:21:22,474 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_user [2022-12-14 10:21:22,475 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:21:22,476 WARN L623 FunctionHandler]: Unknown extern function blk_rq_map_kern [2022-12-14 10:21:22,478 WARN L623 FunctionHandler]: Unknown extern function blk_execute_rq_nowait [2022-12-14 10:21:22,480 WARN L623 FunctionHandler]: Unknown extern function blk_put_request [2022-12-14 10:21:22,481 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,481 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,484 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-12-14 10:21:22,485 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-12-14 10:21:22,490 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,494 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 10:21:22,495 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 10:21:22,496 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,497 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,498 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 10:21:22,499 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 10:21:22,499 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 10:21:22,501 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 10:21:22,504 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,504 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 10:21:22,506 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 10:21:22,506 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,507 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,509 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,510 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,511 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,512 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,515 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,520 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-12-14 10:21:22,520 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,521 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,521 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:21:22,522 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,523 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:21:22,524 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-12-14 10:21:22,525 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,525 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:21:22,526 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,526 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:21:22,527 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-12-14 10:21:22,527 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 10:21:22,528 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,529 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,529 WARN L623 FunctionHandler]: Unknown extern function msecs_to_jiffies [2022-12-14 10:21:22,529 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 10:21:22,529 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,531 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,531 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,532 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,532 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,533 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,535 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,535 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,539 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,539 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,540 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,541 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,544 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,545 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,546 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-12-14 10:21:22,546 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,548 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,551 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,551 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,552 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 10:21:22,552 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 10:21:22,553 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-12-14 10:21:22,553 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 10:21:22,554 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,554 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,555 WARN L623 FunctionHandler]: Unknown extern function vmalloc [2022-12-14 10:21:22,555 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,557 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,557 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,557 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,557 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,558 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,558 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,558 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,558 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,559 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,559 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,559 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,560 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,560 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,560 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,561 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,562 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,566 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,566 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,567 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,568 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,569 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,569 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,570 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,572 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,573 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,574 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,576 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,581 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,585 WARN L623 FunctionHandler]: Unknown extern function scsi_ioctl [2022-12-14 10:21:22,586 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-14 10:21:22,587 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,587 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,589 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,589 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,590 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,594 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-14 10:21:22,595 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,597 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,599 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,599 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,600 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,600 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,603 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,603 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,603 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,603 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,604 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,604 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,604 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,605 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,605 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,605 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,606 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,606 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,606 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,613 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,614 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,618 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-12-14 10:21:22,619 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,619 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,619 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,619 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,620 WARN L623 FunctionHandler]: Unknown extern function scsi_device_get [2022-12-14 10:21:22,620 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,620 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,620 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-14 10:21:22,621 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,622 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,625 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,628 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,629 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,630 WARN L623 FunctionHandler]: Unknown extern function scsi_device_put [2022-12-14 10:21:22,649 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,650 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,650 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,650 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,651 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,651 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,652 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-12-14 10:21:22,653 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,653 WARN L623 FunctionHandler]: Unknown extern function scsi_device_put [2022-12-14 10:21:22,655 WARN L623 FunctionHandler]: Unknown extern function scsi_block_when_processing_errors [2022-12-14 10:21:22,656 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 10:21:22,656 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,670 WARN L623 FunctionHandler]: Unknown extern function scsi_ioctl [2022-12-14 10:21:22,677 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,678 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,679 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,680 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,681 WARN L623 FunctionHandler]: Unknown extern function __free_pages [2022-12-14 10:21:22,682 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,684 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,685 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,686 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,687 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,688 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,689 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,690 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,694 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 10:21:22,694 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 10:21:22,695 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 10:21:22,696 WARN L623 FunctionHandler]: Unknown extern function driver_create_file [2022-12-14 10:21:22,696 WARN L623 FunctionHandler]: Unknown extern function driver_remove_file [2022-12-14 10:21:22,696 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:21:22,698 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:21:22,699 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:21:22,700 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:21:22,701 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:21:22,702 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 10:21:22,703 WARN L623 FunctionHandler]: Unknown extern function __class_create [2022-12-14 10:21:22,703 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,703 WARN L623 FunctionHandler]: Unknown extern function device_destroy [2022-12-14 10:21:22,704 WARN L623 FunctionHandler]: Unknown extern function device_create [2022-12-14 10:21:22,704 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,704 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 10:21:22,705 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 10:21:22,705 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 10:21:22,705 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 10:21:22,705 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 10:21:22,705 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 10:21:22,706 WARN L623 FunctionHandler]: Unknown extern function class_destroy [2022-12-14 10:21:22,707 WARN L623 FunctionHandler]: Unknown extern function alloc_disk [2022-12-14 10:21:22,707 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,707 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-12-14 10:21:22,707 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,707 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,708 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,708 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,708 WARN L623 FunctionHandler]: Unknown extern function panic [2022-12-14 10:21:22,709 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,709 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,709 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,709 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,710 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:21:22,710 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 10:21:22,711 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 10:21:22,711 WARN L623 FunctionHandler]: Unknown extern function strncmp [2022-12-14 10:21:22,713 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 10:21:22,713 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,714 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-12-14 10:21:22,714 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:21:22,714 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-14 10:21:22,715 WARN L623 FunctionHandler]: Unknown extern function _raw_write_lock [2022-12-14 10:21:22,716 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-14 10:21:22,716 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,716 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:21:22,716 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:21:22,716 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:21:22,717 WARN L623 FunctionHandler]: Unknown extern function _raw_write_unlock [2022-12-14 10:21:22,717 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,717 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,718 WARN L623 FunctionHandler]: Unknown extern function scsi_register_driver [2022-12-14 10:21:22,718 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-12-14 10:21:22,718 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-12-14 10:21:22,719 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-12-14 10:21:22,719 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:21:22,719 WARN L623 FunctionHandler]: Unknown extern function put_disk [2022-12-14 10:21:22,720 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:21:22,720 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:21:22,720 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:21:22,721 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 10:21:22,721 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-14 10:21:22,721 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value_probe [2022-12-14 10:21:22,721 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 10:21:22,722 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 10:21:22,722 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-14 10:21:22,722 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 10:21:22,722 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-14 10:21:22,722 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 10:21:22,723 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-14 10:21:22,723 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 10:21:22,723 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 10:21:22,723 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 10:21:22,723 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 10:21:22,724 WARN L623 FunctionHandler]: Unknown extern function ldv_handler_precall [2022-12-14 10:21:22,724 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 10:21:22,724 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:21:22,724 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 10:21:22,724 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 10:21:22,725 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:21:22,725 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-12-14 10:21:22,725 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:21:22,725 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-12-14 10:21:22,726 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:21:22,726 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 10:21:22,726 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:21:22,726 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 10:21:22,726 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-12-14 10:21:22,727 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:21:22,727 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:21:22,727 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:21:22,727 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:21:22,727 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:21:22,727 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_eb78b195-9ab3-4710-b449-4a32547aaf74/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[331724,331737] [2022-12-14 10:21:22,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:21:22,782 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:21:22,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:21:22 WrapperNode [2022-12-14 10:21:22,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:21:22,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:21:22,783 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:21:22,783 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:21:22,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:21:22" (1/1) ... [2022-12-14 10:21:22,863 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:21:22" (1/1) ... [2022-12-14 10:21:23,042 INFO L138 Inliner]: procedures = 273, calls = 4082, calls flagged for inlining = 105, calls inlined = 96, statements flattened = 8941 [2022-12-14 10:21:23,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:21:23,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:21:23,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:21:23,043 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:21:23,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:21:22" (1/1) ... [2022-12-14 10:21:23,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:21:22" (1/1) ... [2022-12-14 10:21:23,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:21:22" (1/1) ... [2022-12-14 10:21:23,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:21:22" (1/1) ... [2022-12-14 10:21:23,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:21:22" (1/1) ... [2022-12-14 10:21:23,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:21:22" (1/1) ... [2022-12-14 10:21:23,203 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:21:22" (1/1) ... [2022-12-14 10:21:23,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:21:22" (1/1) ... [2022-12-14 10:21:23,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:21:23,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:21:23,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:21:23,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:21:23,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:21:22" (1/1) ... [2022-12-14 10:21:23,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:21:23,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:21:23,291 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:21:23,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:21:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-12-14 10:21:23,324 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-12-14 10:21:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure osst_log_options [2022-12-14 10:21:23,324 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_log_options [2022-12-14 10:21:23,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-12-14 10:21:23,325 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-12-14 10:21:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-12-14 10:21:23,325 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-12-14 10:21:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-12-14 10:21:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 10:21:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 10:21:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_behind_check [2022-12-14 10:21:23,325 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_behind_check [2022-12-14 10:21:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-12-14 10:21:23,325 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-12-14 10:21:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2022-12-14 10:21:23,325 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2022-12-14 10:21:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-12-14 10:21:23,325 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-12-14 10:21:23,325 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock [2022-12-14 10:21:23,326 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock [2022-12-14 10:21:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure osst_release_request [2022-12-14 10:21:23,326 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_release_request [2022-12-14 10:21:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 10:21:23,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 10:21:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure osst_set_frame_position [2022-12-14 10:21:23,326 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_set_frame_position [2022-12-14 10:21:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_header [2022-12-14 10:21:23,326 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_header [2022-12-14 10:21:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_osst_tape [2022-12-14 10:21:23,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_osst_tape [2022-12-14 10:21:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_osst_tape [2022-12-14 10:21:23,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_osst_tape [2022-12-14 10:21:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-14 10:21:23,326 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-14 10:21:23,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-14 10:21:23,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-14 10:21:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-12-14 10:21:23,327 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-12-14 10:21:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_frame [2022-12-14 10:21:23,327 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_frame [2022-12-14 10:21:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure tape_name [2022-12-14 10:21:23,327 INFO L138 BoogieDeclarations]: Found implementation of procedure tape_name [2022-12-14 10:21:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-12-14 10:21:23,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-12-14 10:21:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_put [2022-12-14 10:21:23,327 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_put [2022-12-14 10:21:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 10:21:23,327 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 10:21:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_write_buffer [2022-12-14 10:21:23,327 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_write_buffer [2022-12-14 10:21:23,327 INFO L130 BoogieDeclarations]: Found specification of procedure osst_initiate_read [2022-12-14 10:21:23,328 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_initiate_read [2022-12-14 10:21:23,328 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-12-14 10:21:23,357 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-12-14 10:21:23,357 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_ioctl [2022-12-14 10:21:23,357 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_ioctl [2022-12-14 10:21:23,357 INFO L130 BoogieDeclarations]: Found specification of procedure osst_seek_logical_blk [2022-12-14 10:21:23,357 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_seek_logical_blk [2022-12-14 10:21:23,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_osst_int_mutex [2022-12-14 10:21:23,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_osst_int_mutex [2022-12-14 10:21:23,357 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_trailer [2022-12-14 10:21:23,357 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_trailer [2022-12-14 10:21:23,357 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_drive_buffer [2022-12-14 10:21:23,357 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_drive_buffer [2022-12-14 10:21:23,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:21:23,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_osst_int_mutex [2022-12-14 10:21:23,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_osst_int_mutex [2022-12-14 10:21:23,358 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 10:21:23,358 INFO L130 BoogieDeclarations]: Found specification of procedure osst_int_ioctl [2022-12-14 10:21:23,358 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_int_ioctl [2022-12-14 10:21:23,358 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2022-12-14 10:21:23,358 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2022-12-14 10:21:23,358 INFO L130 BoogieDeclarations]: Found specification of procedure do_door_lock [2022-12-14 10:21:23,358 INFO L138 BoogieDeclarations]: Found implementation of procedure do_door_lock [2022-12-14 10:21:23,358 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 10:21:23,358 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_to_buffer [2022-12-14 10:21:23,358 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_to_buffer [2022-12-14 10:21:23,358 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_analyze_headers [2022-12-14 10:21:23,358 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_analyze_headers [2022-12-14 10:21:23,358 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-12-14 10:21:23,358 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-12-14 10:21:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_logical_frame [2022-12-14 10:21:23,359 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_logical_frame [2022-12-14 10:21:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-12-14 10:21:23,359 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-12-14 10:21:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2022-12-14 10:21:23,359 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2022-12-14 10:21:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:21:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure osst_position_tape_and_confirm [2022-12-14 10:21:23,359 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_position_tape_and_confirm [2022-12-14 10:21:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 10:21:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-12-14 10:21:23,359 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-12-14 10:21:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 10:21:23,359 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 10:21:23,359 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-14 10:21:23,360 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-14 10:21:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure osst_verify_frame [2022-12-14 10:21:23,360 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_verify_frame [2022-12-14 10:21:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-12-14 10:21:23,360 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-12-14 10:21:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_ready [2022-12-14 10:21:23,360 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_ready [2022-12-14 10:21:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reset_header [2022-12-14 10:21:23,360 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reset_header [2022-12-14 10:21:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-12-14 10:21:23,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-12-14 10:21:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 10:21:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-12-14 10:21:23,360 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-12-14 10:21:23,360 INFO L130 BoogieDeclarations]: Found specification of procedure osst_do_scsi [2022-12-14 10:21:23,361 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_do_scsi [2022-12-14 10:21:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2022-12-14 10:21:23,361 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2022-12-14 10:21:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 10:21:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2022-12-14 10:21:23,361 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2022-12-14 10:21:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 10:21:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure osst_chk_result [2022-12-14 10:21:23,361 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_chk_result [2022-12-14 10:21:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_add [2022-12-14 10:21:23,361 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_add [2022-12-14 10:21:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 10:21:23,361 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 10:21:23,361 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_backward [2022-12-14 10:21:23,361 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_backward [2022-12-14 10:21:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_back_buffer_and_rewrite [2022-12-14 10:21:23,362 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_back_buffer_and_rewrite [2022-12-14 10:21:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure cross_eof [2022-12-14 10:21:23,362 INFO L138 BoogieDeclarations]: Found implementation of procedure cross_eof [2022-12-14 10:21:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_cleanup [2022-12-14 10:21:23,362 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_cleanup [2022-12-14 10:21:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 10:21:23,362 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 10:21:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_buffer [2022-12-14 10:21:23,362 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_buffer [2022-12-14 10:21:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-12-14 10:21:23,362 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-12-14 10:21:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 10:21:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-12-14 10:21:23,362 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-12-14 10:21:23,362 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reposition_and_retry [2022-12-14 10:21:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reposition_and_retry [2022-12-14 10:21:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_filemark [2022-12-14 10:21:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_filemark [2022-12-14 10:21:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_destroy [2022-12-14 10:21:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_destroy [2022-12-14 10:21:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 10:21:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 10:21:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-12-14 10:21:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-12-14 10:21:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 10:21:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2022-12-14 10:21:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2022-12-14 10:21:23,363 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock [2022-12-14 10:21:23,363 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock [2022-12-14 10:21:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-12-14 10:21:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-12-14 10:21:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:21:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_write_header [2022-12-14 10:21:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_write_header [2022-12-14 10:21:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_frame [2022-12-14 10:21:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_frame [2022-12-14 10:21:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-12-14 10:21:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-12-14 10:21:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 10:21:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 10:21:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_frame_position [2022-12-14 10:21:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_frame_position [2022-12-14 10:21:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_buffer [2022-12-14 10:21:23,364 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_buffer [2022-12-14 10:21:23,364 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_from_buffer [2022-12-14 10:21:23,365 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_from_buffer [2022-12-14 10:21:23,365 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-12-14 10:21:23,365 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-12-14 10:21:23,365 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-12-14 10:21:23,365 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-12-14 10:21:23,365 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_buffer [2022-12-14 10:21:23,365 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_buffer [2022-12-14 10:21:23,365 INFO L130 BoogieDeclarations]: Found specification of procedure osst_init_aux [2022-12-14 10:21:23,365 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_init_aux [2022-12-14 10:21:23,365 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_error_recovery [2022-12-14 10:21:23,365 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_error_recovery [2022-12-14 10:21:23,365 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_eod [2022-12-14 10:21:23,365 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_eod [2022-12-14 10:21:23,365 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-12-14 10:21:23,365 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-12-14 10:21:23,366 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_forward_slow [2022-12-14 10:21:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_forward_slow [2022-12-14 10:21:23,366 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-12-14 10:21:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-12-14 10:21:23,366 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2022-12-14 10:21:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2022-12-14 10:21:23,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:21:23,366 INFO L130 BoogieDeclarations]: Found specification of procedure osst_recover_wait_frame [2022-12-14 10:21:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_recover_wait_frame [2022-12-14 10:21:23,366 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_frame [2022-12-14 10:21:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_frame [2022-12-14 10:21:23,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:21:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:21:23,366 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-12-14 10:21:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-12-14 10:21:24,000 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:21:24,002 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:21:36,547 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:21:39,573 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:21:39,573 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-14 10:21:39,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:21:39 BoogieIcfgContainer [2022-12-14 10:21:39,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:21:39,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:21:39,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:21:39,583 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:21:39,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:21:20" (1/3) ... [2022-12-14 10:21:39,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b692dd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:21:39, skipping insertion in model container [2022-12-14 10:21:39,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:21:22" (2/3) ... [2022-12-14 10:21:39,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b692dd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:21:39, skipping insertion in model container [2022-12-14 10:21:39,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:21:39" (3/3) ... [2022-12-14 10:21:39,585 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2022-12-14 10:21:39,599 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:21:39,599 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 10:21:39,662 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:21:39,666 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;@4e46520d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:21:39,667 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 10:21:39,675 INFO L276 IsEmpty]: Start isEmpty. Operand has 2158 states, 1461 states have (on average 1.4004106776180698) internal successors, (2046), 1487 states have internal predecessors, (2046), 603 states have call successors, (603), 92 states have call predecessors, (603), 92 states have return successors, (603), 600 states have call predecessors, (603), 603 states have call successors, (603) [2022-12-14 10:21:39,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 10:21:39,681 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:21:39,681 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:21:39,681 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:21:39,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:21:39,685 INFO L85 PathProgramCache]: Analyzing trace with hash -2049300717, now seen corresponding path program 1 times [2022-12-14 10:21:39,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:21:39,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314334490] [2022-12-14 10:21:39,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:21:39,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:21:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:21:40,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:21:40,127 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:21:40,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314334490] [2022-12-14 10:21:40,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314334490] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:21:40,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:21:40,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:21:40,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540707453] [2022-12-14 10:21:40,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:21:40,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:21:40,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:21:40,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:21:40,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:21:40,160 INFO L87 Difference]: Start difference. First operand has 2158 states, 1461 states have (on average 1.4004106776180698) internal successors, (2046), 1487 states have internal predecessors, (2046), 603 states have call successors, (603), 92 states have call predecessors, (603), 92 states have return successors, (603), 600 states have call predecessors, (603), 603 states have call successors, (603) Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-14 10:21:44,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:21:47,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:21:49,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:21:55,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:21:57,077 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 [] [2022-12-14 10:21:59,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:21:59,571 INFO L93 Difference]: Finished difference Result 6450 states and 10110 transitions. [2022-12-14 10:21:59,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:21:59,573 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 26 [2022-12-14 10:21:59,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:21:59,604 INFO L225 Difference]: With dead ends: 6450 [2022-12-14 10:21:59,605 INFO L226 Difference]: Without dead ends: 4298 [2022-12-14 10:21:59,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:21:59,625 INFO L413 NwaCegarLoop]: 4503 mSDtfsCounter, 2182 mSDsluCounter, 7364 mSDsCounter, 0 mSdLazyCounter, 1306 mSolverCounterSat, 420 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2603 SdHoareTripleChecker+Valid, 11867 SdHoareTripleChecker+Invalid, 1730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 420 IncrementalHoareTripleChecker+Valid, 1306 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:21:59,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2603 Valid, 11867 Invalid, 1730 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [420 Valid, 1306 Invalid, 4 Unknown, 0 Unchecked, 19.0s Time] [2022-12-14 10:21:59,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4298 states. [2022-12-14 10:21:59,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4298 to 2152. [2022-12-14 10:21:59,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2152 states, 1457 states have (on average 1.39601921757035) internal successors, (2034), 1481 states have internal predecessors, (2034), 603 states have call successors, (603), 92 states have call predecessors, (603), 91 states have return successors, (595), 592 states have call predecessors, (595), 595 states have call successors, (595) [2022-12-14 10:21:59,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2152 states to 2152 states and 3232 transitions. [2022-12-14 10:21:59,773 INFO L78 Accepts]: Start accepts. Automaton has 2152 states and 3232 transitions. Word has length 26 [2022-12-14 10:21:59,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:21:59,773 INFO L495 AbstractCegarLoop]: Abstraction has 2152 states and 3232 transitions. [2022-12-14 10:21:59,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-12-14 10:21:59,774 INFO L276 IsEmpty]: Start isEmpty. Operand 2152 states and 3232 transitions. [2022-12-14 10:21:59,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 10:21:59,775 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:21:59,775 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:21:59,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:21:59,775 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:21:59,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:21:59,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1774580744, now seen corresponding path program 1 times [2022-12-14 10:21:59,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:21:59,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888215556] [2022-12-14 10:21:59,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:21:59,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:21:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:21:59,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:21:59,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:21:59,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888215556] [2022-12-14 10:21:59,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888215556] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:21:59,915 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:21:59,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:21:59,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735557322] [2022-12-14 10:21:59,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:21:59,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:21:59,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:21:59,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:21:59,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:21:59,918 INFO L87 Difference]: Start difference. First operand 2152 states and 3232 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 10:22:02,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:22:05,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:22:07,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:22:10,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:22:13,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:22:13,222 INFO L93 Difference]: Finished difference Result 4211 states and 6317 transitions. [2022-12-14 10:22:13,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:22:13,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 30 [2022-12-14 10:22:13,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:22:13,240 INFO L225 Difference]: With dead ends: 4211 [2022-12-14 10:22:13,240 INFO L226 Difference]: Without dead ends: 4208 [2022-12-14 10:22:13,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:22:13,243 INFO L413 NwaCegarLoop]: 3450 mSDtfsCounter, 3105 mSDsluCounter, 2844 mSDsCounter, 0 mSdLazyCounter, 684 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3105 SdHoareTripleChecker+Valid, 6294 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 684 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:22:13,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3105 Valid, 6294 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 684 Invalid, 4 Unknown, 0 Unchecked, 13.1s Time] [2022-12-14 10:22:13,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4208 states. [2022-12-14 10:22:13,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4208 to 4202. [2022-12-14 10:22:13,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4202 states, 2852 states have (on average 1.3951612903225807) internal successors, (3979), 2888 states have internal predecessors, (3979), 1169 states have call successors, (1169), 181 states have call predecessors, (1169), 180 states have return successors, (1161), 1157 states have call predecessors, (1161), 1161 states have call successors, (1161) [2022-12-14 10:22:13,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4202 states to 4202 states and 6309 transitions. [2022-12-14 10:22:13,364 INFO L78 Accepts]: Start accepts. Automaton has 4202 states and 6309 transitions. Word has length 30 [2022-12-14 10:22:13,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:22:13,365 INFO L495 AbstractCegarLoop]: Abstraction has 4202 states and 6309 transitions. [2022-12-14 10:22:13,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 10:22:13,365 INFO L276 IsEmpty]: Start isEmpty. Operand 4202 states and 6309 transitions. [2022-12-14 10:22:13,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 10:22:13,365 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:22:13,366 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:22:13,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:22:13,366 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:22:13,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:22:13,366 INFO L85 PathProgramCache]: Analyzing trace with hash -823695413, now seen corresponding path program 1 times [2022-12-14 10:22:13,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:22:13,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633085364] [2022-12-14 10:22:13,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:22:13,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:22:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:22:13,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:22:13,537 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:22:13,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633085364] [2022-12-14 10:22:13,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633085364] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:22:13,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:22:13,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:22:13,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044032413] [2022-12-14 10:22:13,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:22:13,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:22:13,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:22:13,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:22:13,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:22:13,539 INFO L87 Difference]: Start difference. First operand 4202 states and 6309 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 10:22:17,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:22:20,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:22:22,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:22:24,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:22:27,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:22:28,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:22:28,763 INFO L93 Difference]: Finished difference Result 7094 states and 10551 transitions. [2022-12-14 10:22:28,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:22:28,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 31 [2022-12-14 10:22:28,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:22:28,790 INFO L225 Difference]: With dead ends: 7094 [2022-12-14 10:22:28,790 INFO L226 Difference]: Without dead ends: 7090 [2022-12-14 10:22:28,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:22:28,796 INFO L413 NwaCegarLoop]: 3705 mSDtfsCounter, 2174 mSDsluCounter, 2817 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2174 SdHoareTripleChecker+Valid, 6522 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:22:28,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2174 Valid, 6522 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 745 Invalid, 4 Unknown, 0 Unchecked, 15.0s Time] [2022-12-14 10:22:28,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7090 states. [2022-12-14 10:22:28,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7090 to 7085. [2022-12-14 10:22:28,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7085 states, 4751 states have (on average 1.3771837507893074) internal successors, (6543), 4813 states have internal predecessors, (6543), 2003 states have call successors, (2003), 333 states have call predecessors, (2003), 330 states have return successors, (1995), 1983 states have call predecessors, (1995), 1995 states have call successors, (1995) [2022-12-14 10:22:29,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7085 states to 7085 states and 10541 transitions. [2022-12-14 10:22:29,008 INFO L78 Accepts]: Start accepts. Automaton has 7085 states and 10541 transitions. Word has length 31 [2022-12-14 10:22:29,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:22:29,008 INFO L495 AbstractCegarLoop]: Abstraction has 7085 states and 10541 transitions. [2022-12-14 10:22:29,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 10:22:29,008 INFO L276 IsEmpty]: Start isEmpty. Operand 7085 states and 10541 transitions. [2022-12-14 10:22:29,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 10:22:29,009 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:22:29,009 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:22:29,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 10:22:29,009 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:22:29,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:22:29,010 INFO L85 PathProgramCache]: Analyzing trace with hash 234127211, now seen corresponding path program 1 times [2022-12-14 10:22:29,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:22:29,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740455853] [2022-12-14 10:22:29,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:22:29,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:22:29,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:22:29,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:22:29,128 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:22:29,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740455853] [2022-12-14 10:22:29,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740455853] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:22:29,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:22:29,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:22:29,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703348486] [2022-12-14 10:22:29,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:22:29,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:22:29,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:22:29,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:22:29,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:22:29,131 INFO L87 Difference]: Start difference. First operand 7085 states and 10541 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 10:22:31,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:22:34,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:22:36,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:22:39,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:22:41,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:22:44,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:22:44,027 INFO L93 Difference]: Finished difference Result 10585 states and 15746 transitions. [2022-12-14 10:22:44,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:22:44,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 32 [2022-12-14 10:22:44,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:22:44,073 INFO L225 Difference]: With dead ends: 10585 [2022-12-14 10:22:44,073 INFO L226 Difference]: Without dead ends: 10582 [2022-12-14 10:22:44,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:22:44,082 INFO L413 NwaCegarLoop]: 3450 mSDtfsCounter, 3106 mSDsluCounter, 2850 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3106 SdHoareTripleChecker+Valid, 6300 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:22:44,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3106 Valid, 6300 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 686 Invalid, 3 Unknown, 0 Unchecked, 14.7s Time] [2022-12-14 10:22:44,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10582 states. [2022-12-14 10:22:44,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10582 to 10574. [2022-12-14 10:22:44,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10574 states, 7095 states have (on average 1.377307963354475) internal successors, (9772), 7183 states have internal predecessors, (9772), 2986 states have call successors, (2986), 496 states have call predecessors, (2986), 492 states have return successors, (2978), 2960 states have call predecessors, (2978), 2978 states have call successors, (2978) [2022-12-14 10:22:44,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10574 states to 10574 states and 15736 transitions. [2022-12-14 10:22:44,439 INFO L78 Accepts]: Start accepts. Automaton has 10574 states and 15736 transitions. Word has length 32 [2022-12-14 10:22:44,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:22:44,439 INFO L495 AbstractCegarLoop]: Abstraction has 10574 states and 15736 transitions. [2022-12-14 10:22:44,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 10:22:44,440 INFO L276 IsEmpty]: Start isEmpty. Operand 10574 states and 15736 transitions. [2022-12-14 10:22:44,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 10:22:44,441 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:22:44,441 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:22:44,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 10:22:44,441 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:22:44,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:22:44,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1333104946, now seen corresponding path program 1 times [2022-12-14 10:22:44,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:22:44,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740967594] [2022-12-14 10:22:44,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:22:44,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:22:44,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:22:44,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:22:44,557 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:22:44,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740967594] [2022-12-14 10:22:44,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740967594] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:22:44,558 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:22:44,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:22:44,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294695508] [2022-12-14 10:22:44,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:22:44,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:22:44,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:22:44,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:22:44,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:22:44,559 INFO L87 Difference]: Start difference. First operand 10574 states and 15736 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 10:22:47,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:22:49,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:22:52,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:22:56,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:22:58,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:22:58,063 INFO L93 Difference]: Finished difference Result 16008 states and 23457 transitions. [2022-12-14 10:22:58,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:22:58,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 33 [2022-12-14 10:22:58,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:22:58,132 INFO L225 Difference]: With dead ends: 16008 [2022-12-14 10:22:58,132 INFO L226 Difference]: Without dead ends: 15977 [2022-12-14 10:22:58,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:22:58,146 INFO L413 NwaCegarLoop]: 3246 mSDtfsCounter, 1994 mSDsluCounter, 2831 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1994 SdHoareTripleChecker+Valid, 6077 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:22:58,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1994 Valid, 6077 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 687 Invalid, 3 Unknown, 0 Unchecked, 13.2s Time] [2022-12-14 10:22:58,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15977 states. [2022-12-14 10:22:58,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15977 to 15970. [2022-12-14 10:22:58,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15970 states, 10626 states have (on average 1.3589309241483154) internal successors, (14440), 10761 states have internal predecessors, (14440), 4480 states have call successors, (4480), 872 states have call predecessors, (4480), 863 states have return successors, (4472), 4442 states have call predecessors, (4472), 4472 states have call successors, (4472) [2022-12-14 10:22:58,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15970 states to 15970 states and 23392 transitions. [2022-12-14 10:22:58,657 INFO L78 Accepts]: Start accepts. Automaton has 15970 states and 23392 transitions. Word has length 33 [2022-12-14 10:22:58,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:22:58,657 INFO L495 AbstractCegarLoop]: Abstraction has 15970 states and 23392 transitions. [2022-12-14 10:22:58,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-12-14 10:22:58,658 INFO L276 IsEmpty]: Start isEmpty. Operand 15970 states and 23392 transitions. [2022-12-14 10:22:58,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 10:22:58,660 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:22:58,660 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:22:58,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 10:22:58,661 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:22:58,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:22:58,661 INFO L85 PathProgramCache]: Analyzing trace with hash -827649658, now seen corresponding path program 1 times [2022-12-14 10:22:58,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:22:58,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639614200] [2022-12-14 10:22:58,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:22:58,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:22:58,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:22:58,974 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 10:22:58,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:22:58,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639614200] [2022-12-14 10:22:58,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639614200] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:22:58,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:22:58,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:22:58,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899839789] [2022-12-14 10:22:58,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:22:58,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:22:58,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:22:58,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:22:58,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:22:58,977 INFO L87 Difference]: Start difference. First operand 15970 states and 23392 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 10:23:01,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:23:04,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:23:09,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:23:10,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:23:10,502 INFO L93 Difference]: Finished difference Result 17483 states and 25506 transitions. [2022-12-14 10:23:10,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:23:10,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 67 [2022-12-14 10:23:10,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:23:10,584 INFO L225 Difference]: With dead ends: 17483 [2022-12-14 10:23:10,584 INFO L226 Difference]: Without dead ends: 17480 [2022-12-14 10:23:10,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:23:10,590 INFO L413 NwaCegarLoop]: 4052 mSDtfsCounter, 2398 mSDsluCounter, 1903 mSDsCounter, 0 mSdLazyCounter, 717 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2398 SdHoareTripleChecker+Valid, 5955 SdHoareTripleChecker+Invalid, 721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 717 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:23:10,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2398 Valid, 5955 Invalid, 721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 717 Invalid, 3 Unknown, 0 Unchecked, 11.1s Time] [2022-12-14 10:23:10,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17480 states. [2022-12-14 10:23:11,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17480 to 17476. [2022-12-14 10:23:11,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17476 states, 11599 states have (on average 1.353996034140874) internal successors, (15705), 11747 states have internal predecessors, (15705), 4899 states have call successors, (4899), 988 states have call predecessors, (4899), 977 states have return successors, (4891), 4858 states have call predecessors, (4891), 4891 states have call successors, (4891) [2022-12-14 10:23:11,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17476 states to 17476 states and 25495 transitions. [2022-12-14 10:23:11,157 INFO L78 Accepts]: Start accepts. Automaton has 17476 states and 25495 transitions. Word has length 67 [2022-12-14 10:23:11,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:23:11,157 INFO L495 AbstractCegarLoop]: Abstraction has 17476 states and 25495 transitions. [2022-12-14 10:23:11,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 10:23:11,158 INFO L276 IsEmpty]: Start isEmpty. Operand 17476 states and 25495 transitions. [2022-12-14 10:23:11,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-14 10:23:11,159 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:23:11,160 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:23:11,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 10:23:11,160 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:23:11,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:23:11,160 INFO L85 PathProgramCache]: Analyzing trace with hash 920839990, now seen corresponding path program 1 times [2022-12-14 10:23:11,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:23:11,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927909350] [2022-12-14 10:23:11,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:23:11,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:23:11,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:23:11,326 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 10:23:11,326 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:23:11,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927909350] [2022-12-14 10:23:11,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927909350] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:23:11,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:23:11,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:23:11,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067091906] [2022-12-14 10:23:11,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:23:11,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:23:11,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:23:11,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:23:11,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:23:11,328 INFO L87 Difference]: Start difference. First operand 17476 states and 25495 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-12-14 10:23:13,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:23:15,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:23:17,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:23:20,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:23:23,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:23:26,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:23:27,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:23:27,930 INFO L93 Difference]: Finished difference Result 36634 states and 53755 transitions. [2022-12-14 10:23:27,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:23:27,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 65 [2022-12-14 10:23:27,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:23:28,002 INFO L225 Difference]: With dead ends: 36634 [2022-12-14 10:23:28,003 INFO L226 Difference]: Without dead ends: 19193 [2022-12-14 10:23:28,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:23:28,085 INFO L413 NwaCegarLoop]: 2967 mSDtfsCounter, 522 mSDsluCounter, 2624 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 6 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 5591 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:23:28,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 5591 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 666 Invalid, 4 Unknown, 0 Unchecked, 16.0s Time] [2022-12-14 10:23:28,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19193 states. [2022-12-14 10:23:28,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19193 to 19013. [2022-12-14 10:23:28,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19013 states, 12708 states have (on average 1.3644161158325465) internal successors, (17339), 12873 states have internal predecessors, (17339), 5327 states have call successors, (5327), 988 states have call predecessors, (5327), 977 states have return successors, (5319), 5280 states have call predecessors, (5319), 5319 states have call successors, (5319) [2022-12-14 10:23:28,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19013 states to 19013 states and 27985 transitions. [2022-12-14 10:23:28,664 INFO L78 Accepts]: Start accepts. Automaton has 19013 states and 27985 transitions. Word has length 65 [2022-12-14 10:23:28,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:23:28,665 INFO L495 AbstractCegarLoop]: Abstraction has 19013 states and 27985 transitions. [2022-12-14 10:23:28,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-12-14 10:23:28,665 INFO L276 IsEmpty]: Start isEmpty. Operand 19013 states and 27985 transitions. [2022-12-14 10:23:28,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-14 10:23:28,667 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:23:28,667 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:23:28,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 10:23:28,667 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:23:28,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:23:28,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1452554277, now seen corresponding path program 1 times [2022-12-14 10:23:28,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:23:28,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068690716] [2022-12-14 10:23:28,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:23:28,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:23:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:23:29,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 10:23:29,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:23:29,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068690716] [2022-12-14 10:23:29,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068690716] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:23:29,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:23:29,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 10:23:29,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566073781] [2022-12-14 10:23:29,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:23:29,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:23:29,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:23:29,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:23:29,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:23:29,133 INFO L87 Difference]: Start difference. First operand 19013 states and 27985 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 10:23:31,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:23:33,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:23:37,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:23:40,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:23:46,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:23:51,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:23:51,769 INFO L93 Difference]: Finished difference Result 22252 states and 32836 transitions. [2022-12-14 10:23:51,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:23:51,770 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 76 [2022-12-14 10:23:51,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:23:51,848 INFO L225 Difference]: With dead ends: 22252 [2022-12-14 10:23:51,848 INFO L226 Difference]: Without dead ends: 22249 [2022-12-14 10:23:51,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:23:51,856 INFO L413 NwaCegarLoop]: 4540 mSDtfsCounter, 4515 mSDsluCounter, 7697 mSDsCounter, 0 mSdLazyCounter, 2161 mSolverCounterSat, 1359 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4645 SdHoareTripleChecker+Valid, 12237 SdHoareTripleChecker+Invalid, 3523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1359 IncrementalHoareTripleChecker+Valid, 2161 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:23:51,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4645 Valid, 12237 Invalid, 3523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1359 Valid, 2161 Invalid, 3 Unknown, 0 Unchecked, 22.0s Time] [2022-12-14 10:23:51,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22249 states. [2022-12-14 10:23:52,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22249 to 20704. [2022-12-14 10:23:52,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20704 states, 13787 states have (on average 1.3590338724885762) internal successors, (18737), 13970 states have internal predecessors, (18737), 5807 states have call successors, (5807), 1123 states have call predecessors, (5807), 1109 states have return successors, (5799), 5757 states have call predecessors, (5799), 5799 states have call successors, (5799) [2022-12-14 10:23:52,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20704 states to 20704 states and 30343 transitions. [2022-12-14 10:23:52,591 INFO L78 Accepts]: Start accepts. Automaton has 20704 states and 30343 transitions. Word has length 76 [2022-12-14 10:23:52,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:23:52,591 INFO L495 AbstractCegarLoop]: Abstraction has 20704 states and 30343 transitions. [2022-12-14 10:23:52,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 10:23:52,591 INFO L276 IsEmpty]: Start isEmpty. Operand 20704 states and 30343 transitions. [2022-12-14 10:23:52,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-14 10:23:52,596 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:23:52,596 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:23:52,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 10:23:52,596 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:23:52,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:23:52,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1797372742, now seen corresponding path program 1 times [2022-12-14 10:23:52,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:23:52,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244559961] [2022-12-14 10:23:52,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:23:52,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:23:52,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:23:53,197 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 10:23:53,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:23:53,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244559961] [2022-12-14 10:23:53,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244559961] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:23:53,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:23:53,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:23:53,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058670540] [2022-12-14 10:23:53,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:23:53,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:23:53,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:23:53,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:23:53,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:23:53,199 INFO L87 Difference]: Start difference. First operand 20704 states and 30343 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 10:23:56,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:24:00,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:24:02,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:24:06,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:24:08,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:24:08,277 INFO L93 Difference]: Finished difference Result 41375 states and 60645 transitions. [2022-12-14 10:24:08,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:24:08,278 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 95 [2022-12-14 10:24:08,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:24:08,346 INFO L225 Difference]: With dead ends: 41375 [2022-12-14 10:24:08,346 INFO L226 Difference]: Without dead ends: 20704 [2022-12-14 10:24:08,401 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:24:08,402 INFO L413 NwaCegarLoop]: 2881 mSDtfsCounter, 1 mSDsluCounter, 5756 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 8637 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:24:08,402 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 8637 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1041 Invalid, 3 Unknown, 0 Unchecked, 14.2s Time] [2022-12-14 10:24:08,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20704 states. [2022-12-14 10:24:08,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20704 to 20702. [2022-12-14 10:24:08,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20702 states, 13785 states have (on average 1.359013420384476) internal successors, (18734), 13968 states have internal predecessors, (18734), 5807 states have call successors, (5807), 1123 states have call predecessors, (5807), 1109 states have return successors, (5799), 5757 states have call predecessors, (5799), 5799 states have call successors, (5799) [2022-12-14 10:24:08,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20702 states to 20702 states and 30340 transitions. [2022-12-14 10:24:09,002 INFO L78 Accepts]: Start accepts. Automaton has 20702 states and 30340 transitions. Word has length 95 [2022-12-14 10:24:09,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:24:09,002 INFO L495 AbstractCegarLoop]: Abstraction has 20702 states and 30340 transitions. [2022-12-14 10:24:09,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 10:24:09,002 INFO L276 IsEmpty]: Start isEmpty. Operand 20702 states and 30340 transitions. [2022-12-14 10:24:09,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-14 10:24:09,006 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:24:09,006 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:24:09,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 10:24:09,006 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:24:09,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:24:09,006 INFO L85 PathProgramCache]: Analyzing trace with hash -824289243, now seen corresponding path program 1 times [2022-12-14 10:24:09,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:24:09,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869125641] [2022-12-14 10:24:09,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:24:09,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:24:09,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:24:09,850 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 10:24:09,850 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:24:09,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869125641] [2022-12-14 10:24:09,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869125641] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:24:09,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:24:09,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 10:24:09,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916774371] [2022-12-14 10:24:09,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:24:09,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 10:24:09,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:24:09,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 10:24:09,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:24:09,852 INFO L87 Difference]: Start difference. First operand 20702 states and 30340 transitions. Second operand has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 10:24:14,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:24:19,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:24:23,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:24:32,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:24:35,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:24:41,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:24:41,100 INFO L93 Difference]: Finished difference Result 27156 states and 39735 transitions. [2022-12-14 10:24:41,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 10:24:41,101 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 94 [2022-12-14 10:24:41,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:24:41,187 INFO L225 Difference]: With dead ends: 27156 [2022-12-14 10:24:41,187 INFO L226 Difference]: Without dead ends: 27121 [2022-12-14 10:24:41,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-12-14 10:24:41,199 INFO L413 NwaCegarLoop]: 1071 mSDtfsCounter, 8825 mSDsluCounter, 2125 mSDsCounter, 0 mSdLazyCounter, 7761 mSolverCounterSat, 4908 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9359 SdHoareTripleChecker+Valid, 3196 SdHoareTripleChecker+Invalid, 12673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4908 IncrementalHoareTripleChecker+Valid, 7761 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:24:41,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9359 Valid, 3196 Invalid, 12673 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4908 Valid, 7761 Invalid, 4 Unknown, 0 Unchecked, 30.1s Time] [2022-12-14 10:24:41,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27121 states. [2022-12-14 10:24:41,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27121 to 27038. [2022-12-14 10:24:41,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27038 states, 17950 states have (on average 1.3557660167130918) internal successors, (24336), 18194 states have internal predecessors, (24336), 7624 states have call successors, (7624), 1477 states have call predecessors, (7624), 1463 states have return successors, (7616), 7560 states have call predecessors, (7616), 7616 states have call successors, (7616) [2022-12-14 10:24:42,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27038 states to 27038 states and 39576 transitions. [2022-12-14 10:24:42,104 INFO L78 Accepts]: Start accepts. Automaton has 27038 states and 39576 transitions. Word has length 94 [2022-12-14 10:24:42,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:24:42,104 INFO L495 AbstractCegarLoop]: Abstraction has 27038 states and 39576 transitions. [2022-12-14 10:24:42,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 3 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 10:24:42,104 INFO L276 IsEmpty]: Start isEmpty. Operand 27038 states and 39576 transitions. [2022-12-14 10:24:42,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-12-14 10:24:42,110 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:24:42,110 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:24:42,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 10:24:42,110 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:24:42,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:24:42,111 INFO L85 PathProgramCache]: Analyzing trace with hash -666339792, now seen corresponding path program 1 times [2022-12-14 10:24:42,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:24:42,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802750306] [2022-12-14 10:24:42,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:24:42,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:24:42,200 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 10:24:42,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [181075541] [2022-12-14 10:24:42,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:24:42,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:24:42,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:24:42,202 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:24:42,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 10:24:43,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:24:43,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 3319 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-14 10:24:43,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:24:43,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 10:24:43,265 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:24:43,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:24:43,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802750306] [2022-12-14 10:24:43,265 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 10:24:43,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181075541] [2022-12-14 10:24:43,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181075541] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:24:43,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:24:43,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 10:24:43,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244964628] [2022-12-14 10:24:43,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:24:43,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:24:43,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:24:43,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:24:43,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:24:43,267 INFO L87 Difference]: Start difference. First operand 27038 states and 39576 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 10:24:46,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:24:48,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:24:50,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:24:54,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:24:56,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:24:59,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:25:04,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:25:08,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:25:08,390 INFO L93 Difference]: Finished difference Result 57708 states and 85029 transitions. [2022-12-14 10:25:08,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:25:08,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 103 [2022-12-14 10:25:08,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:25:08,500 INFO L225 Difference]: With dead ends: 57708 [2022-12-14 10:25:08,500 INFO L226 Difference]: Without dead ends: 30703 [2022-12-14 10:25:08,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:25:08,578 INFO L413 NwaCegarLoop]: 3688 mSDtfsCounter, 558 mSDsluCounter, 10393 mSDsCounter, 0 mSdLazyCounter, 1686 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 14081 SdHoareTripleChecker+Invalid, 1691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1686 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:25:08,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 14081 Invalid, 1691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1686 Invalid, 5 Unknown, 0 Unchecked, 23.9s Time] [2022-12-14 10:25:08,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30703 states. [2022-12-14 10:25:09,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30703 to 27056. [2022-12-14 10:25:09,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27056 states, 17965 states have (on average 1.3554689674366824) internal successors, (24351), 18206 states have internal predecessors, (24351), 7624 states have call successors, (7624), 1477 states have call predecessors, (7624), 1466 states have return successors, (7628), 7566 states have call predecessors, (7628), 7616 states have call successors, (7628) [2022-12-14 10:25:09,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27056 states to 27056 states and 39603 transitions. [2022-12-14 10:25:09,725 INFO L78 Accepts]: Start accepts. Automaton has 27056 states and 39603 transitions. Word has length 103 [2022-12-14 10:25:09,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:25:09,726 INFO L495 AbstractCegarLoop]: Abstraction has 27056 states and 39603 transitions. [2022-12-14 10:25:09,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 10:25:09,726 INFO L276 IsEmpty]: Start isEmpty. Operand 27056 states and 39603 transitions. [2022-12-14 10:25:09,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-14 10:25:09,738 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:25:09,738 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:25:09,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 10:25:09,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:25:09,939 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:25:09,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:25:09,940 INFO L85 PathProgramCache]: Analyzing trace with hash 382223573, now seen corresponding path program 1 times [2022-12-14 10:25:09,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:25:09,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485401265] [2022-12-14 10:25:09,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:25:09,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:25:10,041 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 10:25:10,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1077411034] [2022-12-14 10:25:10,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:25:10,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:25:10,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:25:10,043 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:25:10,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 10:25:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:25:10,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 3323 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 10:25:11,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:25:11,097 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 10:25:11,098 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:25:11,098 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:25:11,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485401265] [2022-12-14 10:25:11,098 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 10:25:11,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077411034] [2022-12-14 10:25:11,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077411034] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:25:11,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:25:11,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:25:11,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793638782] [2022-12-14 10:25:11,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:25:11,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:25:11,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:25:11,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:25:11,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:25:11,099 INFO L87 Difference]: Start difference. First operand 27056 states and 39603 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 10:25:13,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:25:18,042 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:25:21,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:25:23,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:25:23,106 INFO L93 Difference]: Finished difference Result 27066 states and 39609 transitions. [2022-12-14 10:25:23,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:25:23,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 104 [2022-12-14 10:25:23,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:25:23,193 INFO L225 Difference]: With dead ends: 27066 [2022-12-14 10:25:23,193 INFO L226 Difference]: Without dead ends: 27063 [2022-12-14 10:25:23,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:25:23,206 INFO L413 NwaCegarLoop]: 4011 mSDtfsCounter, 2361 mSDsluCounter, 1884 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2361 SdHoareTripleChecker+Valid, 5895 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:25:23,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2361 Valid, 5895 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 702 Invalid, 3 Unknown, 0 Unchecked, 11.1s Time] [2022-12-14 10:25:23,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27063 states. [2022-12-14 10:25:24,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27063 to 27053. [2022-12-14 10:25:24,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27053 states, 17963 states have (on average 1.3554528753548962) internal successors, (24348), 18205 states have internal predecessors, (24348), 7621 states have call successors, (7621), 1477 states have call predecessors, (7621), 1468 states have return successors, (7626), 7564 states have call predecessors, (7626), 7614 states have call successors, (7626) [2022-12-14 10:25:24,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27053 states to 27053 states and 39595 transitions. [2022-12-14 10:25:24,152 INFO L78 Accepts]: Start accepts. Automaton has 27053 states and 39595 transitions. Word has length 104 [2022-12-14 10:25:24,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:25:24,153 INFO L495 AbstractCegarLoop]: Abstraction has 27053 states and 39595 transitions. [2022-12-14 10:25:24,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-14 10:25:24,153 INFO L276 IsEmpty]: Start isEmpty. Operand 27053 states and 39595 transitions. [2022-12-14 10:25:24,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-12-14 10:25:24,159 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:25:24,159 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:25:24,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 10:25:24,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-14 10:25:24,360 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:25:24,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:25:24,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1404779674, now seen corresponding path program 1 times [2022-12-14 10:25:24,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:25:24,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556398435] [2022-12-14 10:25:24,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:25:24,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:25:24,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:25:24,747 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-14 10:25:24,747 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:25:24,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556398435] [2022-12-14 10:25:24,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556398435] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:25:24,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:25:24,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 10:25:24,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552578709] [2022-12-14 10:25:24,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:25:24,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:25:24,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:25:24,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:25:24,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:25:24,749 INFO L87 Difference]: Start difference. First operand 27053 states and 39595 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 10:25:28,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:25:31,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:25:34,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:25:36,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:25:40,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:25:50,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:25:50,007 INFO L93 Difference]: Finished difference Result 32000 states and 46991 transitions. [2022-12-14 10:25:50,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 10:25:50,008 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) Word has length 113 [2022-12-14 10:25:50,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:25:50,111 INFO L225 Difference]: With dead ends: 32000 [2022-12-14 10:25:50,111 INFO L226 Difference]: Without dead ends: 31997 [2022-12-14 10:25:50,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:25:50,125 INFO L413 NwaCegarLoop]: 4420 mSDtfsCounter, 1546 mSDsluCounter, 12048 mSDsCounter, 0 mSdLazyCounter, 3013 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1677 SdHoareTripleChecker+Valid, 16468 SdHoareTripleChecker+Invalid, 3018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3013 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:25:50,125 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1677 Valid, 16468 Invalid, 3018 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3013 Invalid, 4 Unknown, 0 Unchecked, 24.2s Time] [2022-12-14 10:25:50,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31997 states. [2022-12-14 10:25:51,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31997 to 30105. [2022-12-14 10:25:51,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30105 states, 19967 states have (on average 1.3526318425401913) internal successors, (27008), 20233 states have internal predecessors, (27008), 8461 states have call successors, (8461), 1689 states have call predecessors, (8461), 1676 states have return successors, (8466), 8400 states have call predecessors, (8466), 8454 states have call successors, (8466) [2022-12-14 10:25:51,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30105 states to 30105 states and 43935 transitions. [2022-12-14 10:25:51,381 INFO L78 Accepts]: Start accepts. Automaton has 30105 states and 43935 transitions. Word has length 113 [2022-12-14 10:25:51,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:25:51,382 INFO L495 AbstractCegarLoop]: Abstraction has 30105 states and 43935 transitions. [2022-12-14 10:25:51,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (21), 3 states have call predecessors, (21), 2 states have return successors, (19), 3 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 10:25:51,382 INFO L276 IsEmpty]: Start isEmpty. Operand 30105 states and 43935 transitions. [2022-12-14 10:25:51,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-12-14 10:25:51,387 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:25:51,388 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:25:51,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 10:25:51,388 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:25:51,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:25:51,388 INFO L85 PathProgramCache]: Analyzing trace with hash 98484950, now seen corresponding path program 1 times [2022-12-14 10:25:51,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:25:51,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469932211] [2022-12-14 10:25:51,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:25:51,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:25:51,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:25:51,655 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-14 10:25:51,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:25:51,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469932211] [2022-12-14 10:25:51,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469932211] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:25:51,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312966884] [2022-12-14 10:25:51,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:25:51,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:25:51,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:25:51,657 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:25:51,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 10:25:52,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:25:52,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 2757 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 10:25:52,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:25:52,715 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 10:25:52,715 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:25:52,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312966884] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:25:52,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 10:25:52,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2022-12-14 10:25:52,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102645766] [2022-12-14 10:25:52,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:25:52,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 10:25:52,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:25:52,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 10:25:52,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-14 10:25:52,717 INFO L87 Difference]: Start difference. First operand 30105 states and 43935 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 4 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2022-12-14 10:25:56,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:26:00,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:26:02,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:26:04,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:26:06,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:26:09,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:26:14,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:26:17,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:26:17,470 INFO L93 Difference]: Finished difference Result 60400 states and 88189 transitions. [2022-12-14 10:26:17,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:26:17,471 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 4 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 114 [2022-12-14 10:26:17,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:26:17,579 INFO L225 Difference]: With dead ends: 60400 [2022-12-14 10:26:17,579 INFO L226 Difference]: Without dead ends: 30296 [2022-12-14 10:26:17,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-12-14 10:26:17,655 INFO L413 NwaCegarLoop]: 2921 mSDtfsCounter, 72 mSDsluCounter, 8655 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 39 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 11576 SdHoareTripleChecker+Invalid, 1441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2022-12-14 10:26:17,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 11576 Invalid, 1441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1396 Invalid, 6 Unknown, 0 Unchecked, 23.6s Time] [2022-12-14 10:26:17,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30296 states. [2022-12-14 10:26:18,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30296 to 30127. [2022-12-14 10:26:18,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30127 states, 19978 states have (on average 1.351837020722795) internal successors, (27007), 20244 states have internal predecessors, (27007), 8472 states have call successors, (8472), 1689 states have call predecessors, (8472), 1676 states have return successors, (8477), 8411 states have call predecessors, (8477), 8465 states have call successors, (8477) [2022-12-14 10:26:18,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30127 states to 30127 states and 43956 transitions. [2022-12-14 10:26:18,956 INFO L78 Accepts]: Start accepts. Automaton has 30127 states and 43956 transitions. Word has length 114 [2022-12-14 10:26:18,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:26:18,956 INFO L495 AbstractCegarLoop]: Abstraction has 30127 states and 43956 transitions. [2022-12-14 10:26:18,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 4 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2022-12-14 10:26:18,957 INFO L276 IsEmpty]: Start isEmpty. Operand 30127 states and 43956 transitions. [2022-12-14 10:26:18,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-12-14 10:26:18,963 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:26:18,963 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:26:18,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 10:26:19,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:26:19,164 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:26:19,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:26:19,165 INFO L85 PathProgramCache]: Analyzing trace with hash -984916527, now seen corresponding path program 1 times [2022-12-14 10:26:19,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:26:19,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514836952] [2022-12-14 10:26:19,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:26:19,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:26:19,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:26:19,567 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-14 10:26:19,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:26:19,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514836952] [2022-12-14 10:26:19,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514836952] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:26:19,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:26:19,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:26:19,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214271109] [2022-12-14 10:26:19,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:26:19,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:26:19,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:26:19,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:26:19,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:26:19,570 INFO L87 Difference]: Start difference. First operand 30127 states and 43956 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 10:26:23,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:26:25,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:26:30,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:26:32,442 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:26:35,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:26:40,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:26:44,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:26:46,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:26:49,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:26:53,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:26:53,532 INFO L93 Difference]: Finished difference Result 78650 states and 117487 transitions. [2022-12-14 10:26:53,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:26:53,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 128 [2022-12-14 10:26:53,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:26:53,701 INFO L225 Difference]: With dead ends: 78650 [2022-12-14 10:26:53,701 INFO L226 Difference]: Without dead ends: 48556 [2022-12-14 10:26:53,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:26:53,810 INFO L413 NwaCegarLoop]: 4638 mSDtfsCounter, 2387 mSDsluCounter, 7901 mSDsCounter, 0 mSdLazyCounter, 1429 mSolverCounterSat, 397 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2783 SdHoareTripleChecker+Valid, 12539 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 397 IncrementalHoareTripleChecker+Valid, 1429 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:26:53,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2783 Valid, 12539 Invalid, 1833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [397 Valid, 1429 Invalid, 7 Unknown, 0 Unchecked, 31.9s Time] [2022-12-14 10:26:53,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48556 states. [2022-12-14 10:26:55,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48556 to 30171. [2022-12-14 10:26:55,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30171 states, 20022 states have (on average 1.351063829787234) internal successors, (27051), 20288 states have internal predecessors, (27051), 8472 states have call successors, (8472), 1689 states have call predecessors, (8472), 1676 states have return successors, (8477), 8411 states have call predecessors, (8477), 8465 states have call successors, (8477) [2022-12-14 10:26:55,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30171 states to 30171 states and 44000 transitions. [2022-12-14 10:26:55,559 INFO L78 Accepts]: Start accepts. Automaton has 30171 states and 44000 transitions. Word has length 128 [2022-12-14 10:26:55,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:26:55,560 INFO L495 AbstractCegarLoop]: Abstraction has 30171 states and 44000 transitions. [2022-12-14 10:26:55,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 10:26:55,560 INFO L276 IsEmpty]: Start isEmpty. Operand 30171 states and 44000 transitions. [2022-12-14 10:26:55,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-12-14 10:26:55,569 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:26:55,569 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 10:26:55,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 10:26:55,569 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:26:55,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:26:55,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1922673506, now seen corresponding path program 1 times [2022-12-14 10:26:55,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:26:55,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782674116] [2022-12-14 10:26:55,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:26:55,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:26:55,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:26:55,829 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 10:26:55,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:26:55,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782674116] [2022-12-14 10:26:55,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782674116] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:26:55,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:26:55,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:26:55,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004573425] [2022-12-14 10:26:55,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:26:55,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:26:55,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:26:55,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:26:55,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:26:55,831 INFO L87 Difference]: Start difference. First operand 30171 states and 44000 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 10:26:58,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:27:00,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:27:05,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:27:07,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:27:10,681 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:27:12,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:27:12,137 INFO L93 Difference]: Finished difference Result 60315 states and 87972 transitions. [2022-12-14 10:27:12,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:27:12,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 120 [2022-12-14 10:27:12,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:27:12,264 INFO L225 Difference]: With dead ends: 60315 [2022-12-14 10:27:12,264 INFO L226 Difference]: Without dead ends: 30177 [2022-12-14 10:27:12,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:27:12,362 INFO L413 NwaCegarLoop]: 2878 mSDtfsCounter, 0 mSDsluCounter, 2877 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5755 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-12-14 10:27:12,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5755 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 691 Invalid, 3 Unknown, 0 Unchecked, 14.7s Time] [2022-12-14 10:27:12,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30177 states. [2022-12-14 10:27:13,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30177 to 30177. [2022-12-14 10:27:13,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30177 states, 20028 states have (on average 1.3509586578789694) internal successors, (27057), 20294 states have internal predecessors, (27057), 8472 states have call successors, (8472), 1689 states have call predecessors, (8472), 1676 states have return successors, (8477), 8411 states have call predecessors, (8477), 8465 states have call successors, (8477) [2022-12-14 10:27:13,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30177 states to 30177 states and 44006 transitions. [2022-12-14 10:27:13,670 INFO L78 Accepts]: Start accepts. Automaton has 30177 states and 44006 transitions. Word has length 120 [2022-12-14 10:27:13,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:27:13,670 INFO L495 AbstractCegarLoop]: Abstraction has 30177 states and 44006 transitions. [2022-12-14 10:27:13,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-12-14 10:27:13,670 INFO L276 IsEmpty]: Start isEmpty. Operand 30177 states and 44006 transitions. [2022-12-14 10:27:13,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-12-14 10:27:13,677 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:27:13,677 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:27:13,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 10:27:13,677 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:27:13,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:27:13,677 INFO L85 PathProgramCache]: Analyzing trace with hash -393671012, now seen corresponding path program 1 times [2022-12-14 10:27:13,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:27:13,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090141175] [2022-12-14 10:27:13,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:27:13,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:27:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:27:13,932 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-12-14 10:27:13,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:27:13,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090141175] [2022-12-14 10:27:13,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090141175] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:27:13,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:27:13,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:27:13,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922723533] [2022-12-14 10:27:13,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:27:13,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:27:13,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:27:13,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:27:13,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:27:13,933 INFO L87 Difference]: Start difference. First operand 30177 states and 44006 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 10:27:16,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:27:18,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:27:20,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:27:22,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:27:27,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 10:27:30,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 10:27:32,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:27:32,395 INFO L93 Difference]: Finished difference Result 49055 states and 72479 transitions. [2022-12-14 10:27:32,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:27:32,396 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 131 [2022-12-14 10:27:32,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:27:32,540 INFO L225 Difference]: With dead ends: 49055 [2022-12-14 10:27:32,540 INFO L226 Difference]: Without dead ends: 36586 [2022-12-14 10:27:32,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:27:32,594 INFO L413 NwaCegarLoop]: 3860 mSDtfsCounter, 691 mSDsluCounter, 3076 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 6936 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:27:32,594 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 6936 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 802 Invalid, 4 Unknown, 0 Unchecked, 16.9s Time] [2022-12-14 10:27:32,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36586 states. [2022-12-14 10:27:33,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36586 to 30179. [2022-12-14 10:27:33,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30179 states, 20030 states have (on average 1.3509236145781327) internal successors, (27059), 20296 states have internal predecessors, (27059), 8472 states have call successors, (8472), 1689 states have call predecessors, (8472), 1676 states have return successors, (8477), 8411 states have call predecessors, (8477), 8465 states have call successors, (8477) [2022-12-14 10:27:33,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30179 states to 30179 states and 44008 transitions. [2022-12-14 10:27:33,964 INFO L78 Accepts]: Start accepts. Automaton has 30179 states and 44008 transitions. Word has length 131 [2022-12-14 10:27:33,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:27:33,965 INFO L495 AbstractCegarLoop]: Abstraction has 30179 states and 44008 transitions. [2022-12-14 10:27:33,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-12-14 10:27:33,965 INFO L276 IsEmpty]: Start isEmpty. Operand 30179 states and 44008 transitions. [2022-12-14 10:27:33,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-12-14 10:27:33,972 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:27:33,972 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 10:27:33,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 10:27:33,972 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:27:33,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:27:33,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1635748413, now seen corresponding path program 1 times [2022-12-14 10:27:33,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:27:33,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763316910] [2022-12-14 10:27:33,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:27:33,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:27:34,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:27:34,230 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 10:27:34,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:27:34,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763316910] [2022-12-14 10:27:34,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763316910] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 10:27:34,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236317261] [2022-12-14 10:27:34,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:27:34,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:27:34,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:27:34,231 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:27:34,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb78b195-9ab3-4710-b449-4a32547aaf74/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 10:27:35,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:27:35,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 3018 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 10:27:35,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:27:35,296 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 10:27:35,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 10:27:35,347 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 10:27:35,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236317261] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 10:27:35,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1957833001] [2022-12-14 10:27:35,363 INFO L159 IcfgInterpreter]: Started Sifa with 115 locations of interest [2022-12-14 10:27:35,364 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 10:27:35,366 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 10:27:35,370 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 10:27:35,370 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 10:27:58,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:27:58,810 INFO L217 Elim1Store]: Index analysis took 466 ms [2022-12-14 10:28:23,843 WARN L233 SmtUtils]: Spent 24.98s on a formula simplification. DAG size of input: 2436 DAG size of output: 1329 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 10:28:23,847 INFO L321 Elim1Store]: treesize reduction 3978, result has 33.3 percent of original size [2022-12-14 10:28:23,850 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 224 select indices, 224 select index equivalence classes, 24755 disjoint index pairs (out of 24976 index pairs), introduced 224 new quantified variables, introduced 442 case distinctions, treesize of input 1127 treesize of output 2677 [2022-12-14 10:28:27,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:28:27,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 222 select indices, 222 select index equivalence classes, 24754 disjoint index pairs (out of 24531 index pairs), introduced 222 new quantified variables, introduced 0 case distinctions, treesize of input 1117 treesize of output 1782 [2022-12-14 10:28:41,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 10:28:41,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 10:28:47,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:28:47,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 223 select indices, 223 select index equivalence classes, 24754 disjoint index pairs (out of 24753 index pairs), introduced 223 new quantified variables, introduced 0 case distinctions, treesize of input 1116 treesize of output 670 [2022-12-14 10:28:49,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:28:49,522 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 224 select indices, 224 select index equivalence classes, 24976 disjoint index pairs (out of 24976 index pairs), introduced 224 new quantified variables, introduced 0 case distinctions, treesize of input 1121 treesize of output 673 [2022-12-14 10:29:07,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:29:07,796 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 223 select indices, 223 select index equivalence classes, 24754 disjoint index pairs (out of 24753 index pairs), introduced 223 new quantified variables, introduced 0 case distinctions, treesize of input 1116 treesize of output 670 [2022-12-14 10:29:08,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:29:09,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 224 select indices, 224 select index equivalence classes, 24976 disjoint index pairs (out of 24976 index pairs), introduced 224 new quantified variables, introduced 0 case distinctions, treesize of input 1121 treesize of output 673 [2022-12-14 10:29:13,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 10:29:22,242 INFO L321 Elim1Store]: treesize reduction 75, result has 31.2 percent of original size [2022-12-14 10:29:22,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 15 treesize of output 39 [2022-12-14 10:29:22,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 10:29:22,701 INFO L321 Elim1Store]: treesize reduction 265, result has 30.4 percent of original size [2022-12-14 10:29:22,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 23 case distinctions, treesize of input 778 treesize of output 871 [2022-12-14 10:30:22,925 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 10:30:23,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 10:30:48,755 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-12-14 10:30:49,122 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2022-12-14 10:30:52,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 10:30:52,361 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 10:30:52,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 10:30:52,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:52,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:52,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-12-14 10:30:52,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2022-12-14 10:30:52,991 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 10:30:53,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:53,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:53,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:53,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:53,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:53,202 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2022-12-14 10:30:53,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:53,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:53,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:53,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:53,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:53,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:53,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:53,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:53,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:53,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:53,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:53,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 22 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 69 [2022-12-14 10:30:54,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:54,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:54,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-12-14 10:30:54,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2022-12-14 10:30:54,777 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 10:30:54,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:54,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:54,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:54,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:54,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:54,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:54,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:54,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:54,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:54,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:54,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:30:55,844 INFO L321 Elim1Store]: treesize reduction 1584, result has 19.0 percent of original size [2022-12-14 10:30:55,844 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 174 treesize of output 527 [2022-12-14 10:31:00,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:00,543 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 10:31:00,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 28 [2022-12-14 10:31:01,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:01,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:01,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:01,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:01,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:01,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2022-12-14 10:31:01,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:01,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:01,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:01,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:01,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:01,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 57 [2022-12-14 10:31:01,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:01,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 10:31:02,011 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 17 [2022-12-14 10:31:02,070 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2022-12-14 10:31:02,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 10:31:02,547 INFO L321 Elim1Store]: treesize reduction 39, result has 39.1 percent of original size [2022-12-14 10:31:02,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 130 treesize of output 106 [2022-12-14 10:31:02,610 INFO L321 Elim1Store]: treesize reduction 27, result has 41.3 percent of original size [2022-12-14 10:31:02,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 70 [2022-12-14 10:31:02,643 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 10:31:03,838 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 10 [2022-12-14 10:31:07,137 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 59049 conjuctions. This might take some time...