./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412f58a4-3898-4c86-9396-d2db36136aa0/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412f58a4-3898-4c86-9396-d2db36136aa0/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_412f58a4-3898-4c86-9396-d2db36136aa0/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412f58a4-3898-4c86-9396-d2db36136aa0/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412f58a4-3898-4c86-9396-d2db36136aa0/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_412f58a4-3898-4c86-9396-d2db36136aa0/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 62515c851d4d8c80398352da8857a26e67ae776a292d33d62b0afdc92addb3ad --- 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 09:34:52,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:34:52,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:34:52,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:34:52,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:34:52,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:34:52,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:34:52,345 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:34:52,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:34:52,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:34:52,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:34:52,349 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:34:52,350 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:34:52,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:34:52,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:34:52,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:34:52,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:34:52,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:34:52,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:34:52,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:34:52,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:34:52,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:34:52,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:34:52,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:34:52,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:34:52,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:34:52,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:34:52,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:34:52,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:34:52,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:34:52,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:34:52,370 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:34:52,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:34:52,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:34:52,372 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:34:52,372 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:34:52,373 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:34:52,373 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:34:52,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:34:52,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:34:52,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:34:52,374 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412f58a4-3898-4c86-9396-d2db36136aa0/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 09:34:52,396 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:34:52,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:34:52,397 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:34:52,397 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:34:52,397 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:34:52,398 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:34:52,398 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:34:52,398 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:34:52,398 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:34:52,398 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:34:52,399 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:34:52,399 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:34:52,399 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:34:52,399 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:34:52,399 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:34:52,400 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:34:52,400 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:34:52,400 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:34:52,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:34:52,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:34:52,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:34:52,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:34:52,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:34:52,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:34:52,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:34:52,402 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:34:52,402 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:34:52,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:34:52,403 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:34:52,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:34:52,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:34:52,403 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:34:52,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:34:52,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:34:52,404 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:34:52,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:34:52,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:34:52,404 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:34:52,404 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_412f58a4-3898-4c86-9396-d2db36136aa0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412f58a4-3898-4c86-9396-d2db36136aa0/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62515c851d4d8c80398352da8857a26e67ae776a292d33d62b0afdc92addb3ad [2022-12-14 09:34:52,601 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:34:52,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:34:52,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:34:52,621 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:34:52,621 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:34:52,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412f58a4-3898-4c86-9396-d2db36136aa0/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2022-12-14 09:34:55,224 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:34:55,556 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:34:55,557 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412f58a4-3898-4c86-9396-d2db36136aa0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2022-12-14 09:34:55,579 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412f58a4-3898-4c86-9396-d2db36136aa0/bin/utaipan-gh47qXpMRh/data/4ce30e7db/c60892dc492e4f0b9f6c89f513cf8c9c/FLAG04bf950bb [2022-12-14 09:34:55,592 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412f58a4-3898-4c86-9396-d2db36136aa0/bin/utaipan-gh47qXpMRh/data/4ce30e7db/c60892dc492e4f0b9f6c89f513cf8c9c [2022-12-14 09:34:55,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:34:55,596 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:34:55,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:34:55,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:34:55,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:34:55,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:34:55" (1/1) ... [2022-12-14 09:34:55,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b8184e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:55, skipping insertion in model container [2022-12-14 09:34:55,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:34:55" (1/1) ... [2022-12-14 09:34:55,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:34:55,668 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:34:56,069 WARN L623 FunctionHandler]: Unknown extern function kstrtoull [2022-12-14 09:34:56,098 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 09:34:56,112 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 09:34:56,322 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-12-14 09:34:56,330 WARN L623 FunctionHandler]: Unknown extern function __kmalloc [2022-12-14 09:34:56,467 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,468 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,469 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,479 WARN L623 FunctionHandler]: Unknown extern function mddev_init [2022-12-14 09:34:56,481 WARN L623 FunctionHandler]: Unknown extern function md_rdev_init [2022-12-14 09:34:56,485 WARN L623 FunctionHandler]: Unknown extern function dm_put_device [2022-12-14 09:34:56,485 WARN L623 FunctionHandler]: Unknown extern function md_rdev_clear [2022-12-14 09:34:56,486 WARN L623 FunctionHandler]: Unknown extern function dm_put_device [2022-12-14 09:34:56,487 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:34:56,491 WARN L623 FunctionHandler]: Unknown extern function dm_table_get_mode [2022-12-14 09:34:56,492 WARN L623 FunctionHandler]: Unknown extern function dm_get_device [2022-12-14 09:34:56,495 WARN L623 FunctionHandler]: Unknown extern function dm_table_get_mode [2022-12-14 09:34:56,496 WARN L623 FunctionHandler]: Unknown extern function dm_get_device [2022-12-14 09:34:56,499 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,504 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,504 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,505 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,522 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,525 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,526 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,528 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,532 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,534 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,536 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,538 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,539 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,540 WARN L623 FunctionHandler]: Unknown extern function raid5_set_cache_size [2022-12-14 09:34:56,541 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,543 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,544 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,545 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,546 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,548 WARN L623 FunctionHandler]: Unknown extern function dm_set_target_max_io_len [2022-12-14 09:34:56,556 WARN L623 FunctionHandler]: Unknown extern function dm_table_event [2022-12-14 09:34:56,560 WARN L623 FunctionHandler]: Unknown extern function mddev_congested [2022-12-14 09:34:56,564 WARN L623 FunctionHandler]: Unknown extern function sync_page_io [2022-12-14 09:34:56,564 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,565 WARN L623 FunctionHandler]: Unknown extern function md_error [2022-12-14 09:34:56,575 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,583 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,583 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,584 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,585 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,585 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,586 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,586 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,587 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,588 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,589 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,589 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,590 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,592 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,603 WARN L623 FunctionHandler]: Unknown extern function dm_put_device [2022-12-14 09:34:56,604 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 09:34:56,604 WARN L623 FunctionHandler]: Unknown extern function dm_put_device [2022-12-14 09:34:56,605 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 09:34:56,612 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,612 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,620 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 09:34:56,620 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 09:34:56,621 WARN L623 FunctionHandler]: Unknown extern function md_run [2022-12-14 09:34:56,621 WARN L623 FunctionHandler]: Unknown extern function mddev_unlock [2022-12-14 09:34:56,622 WARN L623 FunctionHandler]: Unknown extern function dm_table_add_target_callbacks [2022-12-14 09:34:56,623 WARN L623 FunctionHandler]: Unknown extern function mddev_suspend [2022-12-14 09:34:56,623 WARN L623 FunctionHandler]: Unknown extern function md_stop [2022-12-14 09:34:56,626 WARN L623 FunctionHandler]: Unknown extern function md_stop [2022-12-14 09:34:56,643 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:56,646 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:56,647 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:56,648 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:56,649 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:56,650 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:56,651 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:56,653 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:56,655 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:56,656 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:56,657 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:56,658 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:56,659 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:56,660 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:56,661 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:56,662 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:56,663 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:56,664 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:56,665 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:56,666 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:56,667 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:56,668 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:56,669 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:56,670 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:56,671 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:56,676 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,676 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,677 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,678 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,678 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,679 WARN L623 FunctionHandler]: Unknown extern function md_reap_sync_thread [2022-12-14 09:34:56,680 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,680 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,681 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,682 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,683 WARN L623 FunctionHandler]: Unknown extern function md_wakeup_thread [2022-12-14 09:34:56,683 WARN L623 FunctionHandler]: Unknown extern function md_wakeup_thread [2022-12-14 09:34:56,690 WARN L623 FunctionHandler]: Unknown extern function blk_limits_io_min [2022-12-14 09:34:56,691 WARN L623 FunctionHandler]: Unknown extern function blk_limits_io_opt [2022-12-14 09:34:56,694 WARN L623 FunctionHandler]: Unknown extern function md_stop_writes [2022-12-14 09:34:56,696 WARN L623 FunctionHandler]: Unknown extern function mddev_suspend [2022-12-14 09:34:56,700 WARN L623 FunctionHandler]: Unknown extern function sync_page_io [2022-12-14 09:34:56,701 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,707 WARN L623 FunctionHandler]: Unknown extern function bitmap_load [2022-12-14 09:34:56,707 WARN L623 FunctionHandler]: Unknown extern function mddev_resume [2022-12-14 09:34:56,715 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,716 WARN L623 FunctionHandler]: Unknown extern function dm_register_target [2022-12-14 09:34:56,718 WARN L623 FunctionHandler]: Unknown extern function dm_unregister_target [2022-12-14 09:34:56,734 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 09:34:56,740 WARN L623 FunctionHandler]: Unknown extern function ldv_preresume_2 [2022-12-14 09:34:56,742 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 09:34:56,742 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 09:34:56,743 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 09:34:56,743 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 09:34:56,743 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 09:34:56,744 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:34:56,744 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:34:56,744 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:34:56,745 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 09:34:56,745 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:34:56,745 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:34:56,746 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:34:56,746 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-12-14 09:34:56,746 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:34:56,746 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 09:34:56,749 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_412f58a4-3898-4c86-9396-d2db36136aa0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i[217361,217374] [2022-12-14 09:34:56,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:34:56,877 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:34:56,949 WARN L623 FunctionHandler]: Unknown extern function kstrtoull [2022-12-14 09:34:56,950 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 09:34:56,951 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 09:34:56,956 WARN L623 FunctionHandler]: Unknown extern function alloc_pages_current [2022-12-14 09:34:56,956 WARN L623 FunctionHandler]: Unknown extern function __kmalloc [2022-12-14 09:34:56,967 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,968 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,969 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,971 WARN L623 FunctionHandler]: Unknown extern function mddev_init [2022-12-14 09:34:56,972 WARN L623 FunctionHandler]: Unknown extern function md_rdev_init [2022-12-14 09:34:56,973 WARN L623 FunctionHandler]: Unknown extern function dm_put_device [2022-12-14 09:34:56,974 WARN L623 FunctionHandler]: Unknown extern function md_rdev_clear [2022-12-14 09:34:56,974 WARN L623 FunctionHandler]: Unknown extern function dm_put_device [2022-12-14 09:34:56,974 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 09:34:56,979 WARN L623 FunctionHandler]: Unknown extern function dm_table_get_mode [2022-12-14 09:34:56,979 WARN L623 FunctionHandler]: Unknown extern function dm_get_device [2022-12-14 09:34:56,982 WARN L623 FunctionHandler]: Unknown extern function dm_table_get_mode [2022-12-14 09:34:56,982 WARN L623 FunctionHandler]: Unknown extern function dm_get_device [2022-12-14 09:34:56,984 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,986 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,986 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,987 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,994 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:56,996 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,997 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:56,998 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:57,000 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:57,002 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:57,003 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:57,004 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:57,005 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:57,006 WARN L623 FunctionHandler]: Unknown extern function raid5_set_cache_size [2022-12-14 09:34:57,007 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:57,007 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:57,008 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:57,008 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:57,009 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:57,010 WARN L623 FunctionHandler]: Unknown extern function dm_set_target_max_io_len [2022-12-14 09:34:57,013 WARN L623 FunctionHandler]: Unknown extern function dm_table_event [2022-12-14 09:34:57,014 WARN L623 FunctionHandler]: Unknown extern function mddev_congested [2022-12-14 09:34:57,014 WARN L623 FunctionHandler]: Unknown extern function sync_page_io [2022-12-14 09:34:57,014 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:57,015 WARN L623 FunctionHandler]: Unknown extern function md_error [2022-12-14 09:34:57,019 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:57,024 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:57,025 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:57,025 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:57,025 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:57,026 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:57,026 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:57,026 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:57,027 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:57,028 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:57,028 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:57,028 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:57,028 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:57,029 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:57,034 WARN L623 FunctionHandler]: Unknown extern function dm_put_device [2022-12-14 09:34:57,034 WARN L623 FunctionHandler]: Unknown extern function put_page [2022-12-14 09:34:57,034 WARN L623 FunctionHandler]: Unknown extern function dm_put_device [2022-12-14 09:34:57,035 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 09:34:57,037 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:57,037 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:57,041 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 09:34:57,042 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 09:34:57,042 WARN L623 FunctionHandler]: Unknown extern function md_run [2022-12-14 09:34:57,043 WARN L623 FunctionHandler]: Unknown extern function mddev_unlock [2022-12-14 09:34:57,043 WARN L623 FunctionHandler]: Unknown extern function dm_table_add_target_callbacks [2022-12-14 09:34:57,043 WARN L623 FunctionHandler]: Unknown extern function mddev_suspend [2022-12-14 09:34:57,044 WARN L623 FunctionHandler]: Unknown extern function md_stop [2022-12-14 09:34:57,044 WARN L623 FunctionHandler]: Unknown extern function md_stop [2022-12-14 09:34:57,050 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:57,051 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:57,052 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:57,052 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:57,053 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:57,053 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:57,054 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:57,056 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:57,056 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:57,057 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:57,058 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:57,058 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:57,059 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:57,059 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:57,060 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:57,061 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:57,061 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:57,062 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:57,063 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:57,063 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:57,064 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:57,064 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:57,065 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:57,066 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:57,066 WARN L623 FunctionHandler]: Unknown extern function scnprintf [2022-12-14 09:34:57,068 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:57,068 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:57,069 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:57,069 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:57,069 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:57,070 WARN L623 FunctionHandler]: Unknown extern function md_reap_sync_thread [2022-12-14 09:34:57,070 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:57,071 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:57,071 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:57,072 WARN L623 FunctionHandler]: Unknown extern function strcasecmp [2022-12-14 09:34:57,073 WARN L623 FunctionHandler]: Unknown extern function md_wakeup_thread [2022-12-14 09:34:57,075 WARN L623 FunctionHandler]: Unknown extern function md_wakeup_thread [2022-12-14 09:34:57,080 WARN L623 FunctionHandler]: Unknown extern function blk_limits_io_min [2022-12-14 09:34:57,080 WARN L623 FunctionHandler]: Unknown extern function blk_limits_io_opt [2022-12-14 09:34:57,080 WARN L623 FunctionHandler]: Unknown extern function md_stop_writes [2022-12-14 09:34:57,081 WARN L623 FunctionHandler]: Unknown extern function mddev_suspend [2022-12-14 09:34:57,082 WARN L623 FunctionHandler]: Unknown extern function sync_page_io [2022-12-14 09:34:57,082 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:57,085 WARN L623 FunctionHandler]: Unknown extern function bitmap_load [2022-12-14 09:34:57,086 WARN L623 FunctionHandler]: Unknown extern function mddev_resume [2022-12-14 09:34:57,090 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 09:34:57,090 WARN L623 FunctionHandler]: Unknown extern function dm_register_target [2022-12-14 09:34:57,090 WARN L623 FunctionHandler]: Unknown extern function dm_unregister_target [2022-12-14 09:34:57,094 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 09:34:57,099 WARN L623 FunctionHandler]: Unknown extern function ldv_preresume_2 [2022-12-14 09:34:57,100 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 09:34:57,100 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 09:34:57,101 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 09:34:57,101 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 09:34:57,102 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 09:34:57,102 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:34:57,102 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:34:57,102 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:34:57,103 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 09:34:57,103 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:34:57,103 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 09:34:57,103 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:34:57,104 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible [2022-12-14 09:34:57,104 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 09:34:57,105 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 09:34:57,105 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_412f58a4-3898-4c86-9396-d2db36136aa0/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i[217361,217374] [2022-12-14 09:34:57,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:34:57,187 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:34:57,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:57 WrapperNode [2022-12-14 09:34:57,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:34:57,189 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:34:57,189 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:34:57,189 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:34:57,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:57" (1/1) ... [2022-12-14 09:34:57,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:57" (1/1) ... [2022-12-14 09:34:57,335 INFO L138 Inliner]: procedures = 221, calls = 1639, calls flagged for inlining = 84, calls inlined = 76, statements flattened = 4470 [2022-12-14 09:34:57,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:34:57,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:34:57,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:34:57,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:34:57,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:57" (1/1) ... [2022-12-14 09:34:57,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:57" (1/1) ... [2022-12-14 09:34:57,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:57" (1/1) ... [2022-12-14 09:34:57,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:57" (1/1) ... [2022-12-14 09:34:57,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:57" (1/1) ... [2022-12-14 09:34:57,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:57" (1/1) ... [2022-12-14 09:34:57,451 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:57" (1/1) ... [2022-12-14 09:34:57,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:57" (1/1) ... [2022-12-14 09:34:57,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:34:57,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:34:57,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:34:57,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:34:57,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:57" (1/1) ... [2022-12-14 09:34:57,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:34:57,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412f58a4-3898-4c86-9396-d2db36136aa0/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:34:57,500 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412f58a4-3898-4c86-9396-d2db36136aa0/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:34:57,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412f58a4-3898-4c86-9396-d2db36136aa0/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:34:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure dm_table_get_mode [2022-12-14 09:34:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_table_get_mode [2022-12-14 09:34:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure bdev_get_queue [2022-12-14 09:34:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure bdev_get_queue [2022-12-14 09:34:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 09:34:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 09:34:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 09:34:57,537 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 09:34:57,537 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-12-14 09:34:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-12-14 09:34:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure raid10_md_layout_to_format [2022-12-14 09:34:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure raid10_md_layout_to_format [2022-12-14 09:34:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 09:34:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 09:34:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure raid_io_hints [2022-12-14 09:34:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_io_hints [2022-12-14 09:34:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure raid_message [2022-12-14 09:34:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_message [2022-12-14 09:34:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-14 09:34:57,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-14 09:34:57,538 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-12-14 09:34:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-12-14 09:34:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure raid10_md_layout_to_copies [2022-12-14 09:34:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure raid10_md_layout_to_copies [2022-12-14 09:34:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 09:34:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 09:34:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 09:34:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 09:34:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure context_free [2022-12-14 09:34:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure context_free [2022-12-14 09:34:57,539 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-12-14 09:34:57,539 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-12-14 09:34:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-12-14 09:34:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-12-14 09:34:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure super_validate [2022-12-14 09:34:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure super_validate [2022-12-14 09:34:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure do_table_event [2022-12-14 09:34:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure do_table_event [2022-12-14 09:34:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:34:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 09:34:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 09:34:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 09:34:57,540 INFO L130 BoogieDeclarations]: Found specification of procedure sync_page_io [2022-12-14 09:34:57,540 INFO L138 BoogieDeclarations]: Found implementation of procedure sync_page_io [2022-12-14 09:34:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 09:34:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 09:34:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure to_sector [2022-12-14 09:34:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure to_sector [2022-12-14 09:34:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:34:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 09:34:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure raid_iterate_devices [2022-12-14 09:34:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_iterate_devices [2022-12-14 09:34:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure dm_put_device [2022-12-14 09:34:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_put_device [2022-12-14 09:34:57,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_reconfig_mutex_of_mddev [2022-12-14 09:34:57,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_reconfig_mutex_of_mddev [2022-12-14 09:34:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 09:34:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure mddev_suspend [2022-12-14 09:34:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure mddev_suspend [2022-12-14 09:34:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 09:34:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 09:34:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure super_sync [2022-12-14 09:34:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure super_sync [2022-12-14 09:34:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 09:34:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2022-12-14 09:34:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2022-12-14 09:34:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure md_wakeup_thread [2022-12-14 09:34:57,543 INFO L138 BoogieDeclarations]: Found implementation of procedure md_wakeup_thread [2022-12-14 09:34:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-12-14 09:34:57,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-12-14 09:34:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 09:34:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure raid_merge [2022-12-14 09:34:57,543 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_merge [2022-12-14 09:34:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-12-14 09:34:57,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-12-14 09:34:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure raid_map [2022-12-14 09:34:57,543 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_map [2022-12-14 09:34:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:34:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 09:34:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure strcasecmp [2022-12-14 09:34:57,544 INFO L138 BoogieDeclarations]: Found implementation of procedure strcasecmp [2022-12-14 09:34:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure md_stop [2022-12-14 09:34:57,544 INFO L138 BoogieDeclarations]: Found implementation of procedure md_stop [2022-12-14 09:34:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure raid_status [2022-12-14 09:34:57,544 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_status [2022-12-14 09:34:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2022-12-14 09:34:57,544 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2022-12-14 09:34:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-14 09:34:57,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-14 09:34:57,544 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 09:34:57,545 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 09:34:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:34:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure raid_dtr [2022-12-14 09:34:57,545 INFO L138 BoogieDeclarations]: Found implementation of procedure raid_dtr [2022-12-14 09:34:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure dm_get_device [2022-12-14 09:34:57,545 INFO L138 BoogieDeclarations]: Found implementation of procedure dm_get_device [2022-12-14 09:34:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:34:57,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:34:57,545 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-12-14 09:34:57,545 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-12-14 09:34:57,969 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:34:57,972 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:34:58,219 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 09:35:00,735 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:35:01,387 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:35:01,387 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 09:35:01,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:35:01 BoogieIcfgContainer [2022-12-14 09:35:01,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:35:01,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:35:01,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:35:01,397 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:35:01,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:34:55" (1/3) ... [2022-12-14 09:35:01,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d470c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:35:01, skipping insertion in model container [2022-12-14 09:35:01,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:34:57" (2/3) ... [2022-12-14 09:35:01,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d470c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:35:01, skipping insertion in model container [2022-12-14 09:35:01,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:35:01" (3/3) ... [2022-12-14 09:35:01,399 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--md--dm-raid.ko-entry_point.cil.out.i [2022-12-14 09:35:01,420 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:35:01,420 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 09:35:01,487 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:35:01,493 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;@4d596993, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:35:01,494 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 09:35:01,501 INFO L276 IsEmpty]: Start isEmpty. Operand has 874 states, 613 states have (on average 1.468189233278956) internal successors, (900), 634 states have internal predecessors, (900), 216 states have call successors, (216), 44 states have call predecessors, (216), 43 states have return successors, (212), 208 states have call predecessors, (212), 212 states have call successors, (212) [2022-12-14 09:35:01,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-12-14 09:35:01,515 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:35:01,516 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:35:01,517 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:35:01,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:35:01,522 INFO L85 PathProgramCache]: Analyzing trace with hash 991027237, now seen corresponding path program 1 times [2022-12-14 09:35:01,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:35:01,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133953393] [2022-12-14 09:35:01,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:35:01,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:35:01,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:35:02,187 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-12-14 09:35:02,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:35:02,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133953393] [2022-12-14 09:35:02,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133953393] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:35:02,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:35:02,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:35:02,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468970110] [2022-12-14 09:35:02,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:35:02,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:35:02,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:35:02,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:35:02,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:35:02,220 INFO L87 Difference]: Start difference. First operand has 874 states, 613 states have (on average 1.468189233278956) internal successors, (900), 634 states have internal predecessors, (900), 216 states have call successors, (216), 44 states have call predecessors, (216), 43 states have return successors, (212), 208 states have call predecessors, (212), 212 states have call successors, (212) Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-12-14 09:35:04,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:35:07,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:35:09,420 WARN L539 Checker$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 09:35:09,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:35:09,552 INFO L93 Difference]: Finished difference Result 2528 states and 3855 transitions. [2022-12-14 09:35:09,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:35:09,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 170 [2022-12-14 09:35:09,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:35:09,572 INFO L225 Difference]: With dead ends: 2528 [2022-12-14 09:35:09,572 INFO L226 Difference]: Without dead ends: 1675 [2022-12-14 09:35:09,578 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 09:35:09,580 INFO L413 NwaCegarLoop]: 1379 mSDtfsCounter, 1237 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 2562 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-12-14 09:35:09,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1237 Valid, 2562 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 269 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-12-14 09:35:09,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1675 states. [2022-12-14 09:35:09,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1675 to 1672. [2022-12-14 09:35:09,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1672 states, 1190 states have (on average 1.464705882352941) internal successors, (1743), 1216 states have internal predecessors, (1743), 400 states have call successors, (400), 82 states have call predecessors, (400), 81 states have return successors, (395), 387 states have call predecessors, (395), 395 states have call successors, (395) [2022-12-14 09:35:09,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 2538 transitions. [2022-12-14 09:35:09,705 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 2538 transitions. Word has length 170 [2022-12-14 09:35:09,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:35:09,706 INFO L495 AbstractCegarLoop]: Abstraction has 1672 states and 2538 transitions. [2022-12-14 09:35:09,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-12-14 09:35:09,707 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 2538 transitions. [2022-12-14 09:35:09,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-12-14 09:35:09,710 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:35:09,710 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:35:09,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:35:09,710 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:35:09,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:35:09,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1782054980, now seen corresponding path program 1 times [2022-12-14 09:35:09,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:35:09,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859991521] [2022-12-14 09:35:09,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:35:09,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:35:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:35:09,913 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-12-14 09:35:09,913 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:35:09,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859991521] [2022-12-14 09:35:09,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859991521] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:35:09,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:35:09,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:35:09,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082390005] [2022-12-14 09:35:09,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:35:09,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:35:09,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:35:09,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:35:09,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:35:09,917 INFO L87 Difference]: Start difference. First operand 1672 states and 2538 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 09:35:11,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:35:11,461 INFO L93 Difference]: Finished difference Result 1674 states and 2539 transitions. [2022-12-14 09:35:11,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:35:11,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 173 [2022-12-14 09:35:11,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:35:11,471 INFO L225 Difference]: With dead ends: 1674 [2022-12-14 09:35:11,471 INFO L226 Difference]: Without dead ends: 1671 [2022-12-14 09:35:11,472 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 09:35:11,473 INFO L413 NwaCegarLoop]: 1175 mSDtfsCounter, 1266 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:35:11,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1266 Valid, 1175 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-14 09:35:11,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2022-12-14 09:35:11,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1671. [2022-12-14 09:35:11,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1671 states, 1190 states have (on average 1.4638655462184873) internal successors, (1742), 1215 states have internal predecessors, (1742), 399 states have call successors, (399), 82 states have call predecessors, (399), 81 states have return successors, (395), 387 states have call predecessors, (395), 395 states have call successors, (395) [2022-12-14 09:35:11,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1671 states to 1671 states and 2536 transitions. [2022-12-14 09:35:11,528 INFO L78 Accepts]: Start accepts. Automaton has 1671 states and 2536 transitions. Word has length 173 [2022-12-14 09:35:11,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:35:11,529 INFO L495 AbstractCegarLoop]: Abstraction has 1671 states and 2536 transitions. [2022-12-14 09:35:11,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 09:35:11,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1671 states and 2536 transitions. [2022-12-14 09:35:11,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-12-14 09:35:11,531 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:35:11,531 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:35:11,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:35:11,531 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:35:11,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:35:11,532 INFO L85 PathProgramCache]: Analyzing trace with hash 590574442, now seen corresponding path program 1 times [2022-12-14 09:35:11,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:35:11,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816918462] [2022-12-14 09:35:11,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:35:11,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:35:11,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:35:11,724 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-12-14 09:35:11,725 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:35:11,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816918462] [2022-12-14 09:35:11,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816918462] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:35:11,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:35:11,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:35:11,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744182579] [2022-12-14 09:35:11,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:35:11,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:35:11,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:35:11,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:35:11,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:35:11,727 INFO L87 Difference]: Start difference. First operand 1671 states and 2536 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 09:35:14,734 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 09:35:15,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:35:15,998 INFO L93 Difference]: Finished difference Result 3291 states and 4996 transitions. [2022-12-14 09:35:15,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:35:15,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 174 [2022-12-14 09:35:16,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:35:16,013 INFO L225 Difference]: With dead ends: 3291 [2022-12-14 09:35:16,013 INFO L226 Difference]: Without dead ends: 3288 [2022-12-14 09:35:16,015 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 09:35:16,016 INFO L413 NwaCegarLoop]: 1366 mSDtfsCounter, 1251 mSDsluCounter, 1123 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1251 SdHoareTripleChecker+Valid, 2489 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:35:16,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1251 Valid, 2489 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 258 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-12-14 09:35:16,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3288 states. [2022-12-14 09:35:16,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3288 to 3285. [2022-12-14 09:35:16,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3285 states, 2347 states have (on average 1.4669791222837665) internal successors, (3443), 2394 states have internal predecessors, (3443), 776 states have call successors, (776), 162 states have call predecessors, (776), 161 states have return successors, (772), 756 states have call predecessors, (772), 772 states have call successors, (772) [2022-12-14 09:35:16,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3285 states to 3285 states and 4991 transitions. [2022-12-14 09:35:16,131 INFO L78 Accepts]: Start accepts. Automaton has 3285 states and 4991 transitions. Word has length 174 [2022-12-14 09:35:16,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:35:16,132 INFO L495 AbstractCegarLoop]: Abstraction has 3285 states and 4991 transitions. [2022-12-14 09:35:16,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 09:35:16,132 INFO L276 IsEmpty]: Start isEmpty. Operand 3285 states and 4991 transitions. [2022-12-14 09:35:16,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-12-14 09:35:16,134 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:35:16,134 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:35:16,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 09:35:16,135 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:35:16,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:35:16,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1127647359, now seen corresponding path program 1 times [2022-12-14 09:35:16,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:35:16,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036862325] [2022-12-14 09:35:16,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:35:16,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:35:16,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:35:16,315 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-12-14 09:35:16,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:35:16,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036862325] [2022-12-14 09:35:16,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036862325] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:35:16,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:35:16,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:35:16,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260105859] [2022-12-14 09:35:16,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:35:16,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:35:16,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:35:16,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:35:16,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:35:16,318 INFO L87 Difference]: Start difference. First operand 3285 states and 4991 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 09:35:19,428 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 09:35:20,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:35:20,292 INFO L93 Difference]: Finished difference Result 3292 states and 4997 transitions. [2022-12-14 09:35:20,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:35:20,293 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 175 [2022-12-14 09:35:20,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:35:20,303 INFO L225 Difference]: With dead ends: 3292 [2022-12-14 09:35:20,303 INFO L226 Difference]: Without dead ends: 3289 [2022-12-14 09:35:20,305 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 09:35:20,306 INFO L413 NwaCegarLoop]: 1366 mSDtfsCounter, 1248 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1248 SdHoareTripleChecker+Valid, 2492 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:35:20,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1248 Valid, 2492 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 258 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 09:35:20,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3289 states. [2022-12-14 09:35:20,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3289 to 3286. [2022-12-14 09:35:20,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3286 states, 2348 states have (on average 1.4667802385008517) internal successors, (3444), 2395 states have internal predecessors, (3444), 776 states have call successors, (776), 162 states have call predecessors, (776), 161 states have return successors, (772), 756 states have call predecessors, (772), 772 states have call successors, (772) [2022-12-14 09:35:20,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3286 states to 3286 states and 4992 transitions. [2022-12-14 09:35:20,419 INFO L78 Accepts]: Start accepts. Automaton has 3286 states and 4992 transitions. Word has length 175 [2022-12-14 09:35:20,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:35:20,420 INFO L495 AbstractCegarLoop]: Abstraction has 3286 states and 4992 transitions. [2022-12-14 09:35:20,420 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, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 09:35:20,420 INFO L276 IsEmpty]: Start isEmpty. Operand 3286 states and 4992 transitions. [2022-12-14 09:35:20,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-12-14 09:35:20,422 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:35:20,422 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:35:20,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 09:35:20,422 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:35:20,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:35:20,422 INFO L85 PathProgramCache]: Analyzing trace with hash 597043469, now seen corresponding path program 1 times [2022-12-14 09:35:20,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:35:20,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571613911] [2022-12-14 09:35:20,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:35:20,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:35:20,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:35:20,597 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2022-12-14 09:35:20,597 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:35:20,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571613911] [2022-12-14 09:35:20,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571613911] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:35:20,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:35:20,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:35:20,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520077459] [2022-12-14 09:35:20,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:35:20,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:35:20,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:35:20,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:35:20,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:35:20,598 INFO L87 Difference]: Start difference. First operand 3286 states and 4992 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 09:35:25,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 09:35:27,374 WARN L539 Checker$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 09:35:27,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:35:27,466 INFO L93 Difference]: Finished difference Result 6495 states and 9879 transitions. [2022-12-14 09:35:27,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:35:27,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 176 [2022-12-14 09:35:27,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:35:27,487 INFO L225 Difference]: With dead ends: 6495 [2022-12-14 09:35:27,487 INFO L226 Difference]: Without dead ends: 6486 [2022-12-14 09:35:27,489 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 09:35:27,490 INFO L413 NwaCegarLoop]: 1365 mSDtfsCounter, 1244 mSDsluCounter, 1128 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1244 SdHoareTripleChecker+Valid, 2493 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:35:27,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1244 Valid, 2493 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 260 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-12-14 09:35:27,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6486 states. [2022-12-14 09:35:27,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6486 to 6482. [2022-12-14 09:35:27,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6482 states, 4648 states have (on average 1.46815834767642) internal successors, (6824), 4735 states have internal predecessors, (6824), 1520 states have call successors, (1520), 318 states have call predecessors, (1520), 313 states have return successors, (1516), 1480 states have call predecessors, (1516), 1516 states have call successors, (1516) [2022-12-14 09:35:27,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6482 states to 6482 states and 9860 transitions. [2022-12-14 09:35:27,722 INFO L78 Accepts]: Start accepts. Automaton has 6482 states and 9860 transitions. Word has length 176 [2022-12-14 09:35:27,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:35:27,722 INFO L495 AbstractCegarLoop]: Abstraction has 6482 states and 9860 transitions. [2022-12-14 09:35:27,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-14 09:35:27,722 INFO L276 IsEmpty]: Start isEmpty. Operand 6482 states and 9860 transitions. [2022-12-14 09:35:27,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-12-14 09:35:27,729 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:35:27,730 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:35:27,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 09:35:27,730 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:35:27,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:35:27,730 INFO L85 PathProgramCache]: Analyzing trace with hash 545755943, now seen corresponding path program 1 times [2022-12-14 09:35:27,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:35:27,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637685407] [2022-12-14 09:35:27,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:35:27,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:35:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:35:27,975 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2022-12-14 09:35:27,975 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:35:27,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637685407] [2022-12-14 09:35:27,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637685407] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:35:27,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:35:27,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:35:27,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51699094] [2022-12-14 09:35:27,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:35:27,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:35:27,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:35:27,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:35:27,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:35:27,977 INFO L87 Difference]: Start difference. First operand 6482 states and 9860 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 09:35:33,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 09:35:33,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:35:33,216 INFO L93 Difference]: Finished difference Result 13256 states and 20160 transitions. [2022-12-14 09:35:33,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:35:33,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 254 [2022-12-14 09:35:33,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:35:33,235 INFO L225 Difference]: With dead ends: 13256 [2022-12-14 09:35:33,235 INFO L226 Difference]: Without dead ends: 6809 [2022-12-14 09:35:33,247 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 09:35:33,247 INFO L413 NwaCegarLoop]: 1195 mSDtfsCounter, 126 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 2216 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-12-14 09:35:33,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 2216 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-12-14 09:35:33,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6809 states. [2022-12-14 09:35:33,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6809 to 6791. [2022-12-14 09:35:33,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6791 states, 4911 states have (on average 1.4697617593158216) internal successors, (7218), 4998 states have internal predecessors, (7218), 1554 states have call successors, (1554), 330 states have call predecessors, (1554), 325 states have return successors, (1550), 1514 states have call predecessors, (1550), 1550 states have call successors, (1550) [2022-12-14 09:35:33,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6791 states to 6791 states and 10322 transitions. [2022-12-14 09:35:33,489 INFO L78 Accepts]: Start accepts. Automaton has 6791 states and 10322 transitions. Word has length 254 [2022-12-14 09:35:33,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:35:33,489 INFO L495 AbstractCegarLoop]: Abstraction has 6791 states and 10322 transitions. [2022-12-14 09:35:33,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 09:35:33,490 INFO L276 IsEmpty]: Start isEmpty. Operand 6791 states and 10322 transitions. [2022-12-14 09:35:33,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-12-14 09:35:33,498 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:35:33,498 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:35:33,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 09:35:33,498 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:35:33,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:35:33,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1001652738, now seen corresponding path program 1 times [2022-12-14 09:35:33,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:35:33,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034918375] [2022-12-14 09:35:33,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:35:33,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:35:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:35:33,896 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2022-12-14 09:35:33,896 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:35:33,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034918375] [2022-12-14 09:35:33,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034918375] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:35:33,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:35:33,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:35:33,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982643240] [2022-12-14 09:35:33,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:35:33,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:35:33,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:35:33,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:35:33,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:35:33,898 INFO L87 Difference]: Start difference. First operand 6791 states and 10322 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 09:35:35,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:35:40,263 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 09:35:41,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:35:41,213 INFO L93 Difference]: Finished difference Result 18256 states and 28346 transitions. [2022-12-14 09:35:41,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:35:41,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 272 [2022-12-14 09:35:41,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:35:41,253 INFO L225 Difference]: With dead ends: 18256 [2022-12-14 09:35:41,253 INFO L226 Difference]: Without dead ends: 11513 [2022-12-14 09:35:41,266 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 09:35:41,266 INFO L413 NwaCegarLoop]: 1680 mSDtfsCounter, 875 mSDsluCounter, 2999 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 124 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 981 SdHoareTripleChecker+Valid, 4679 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:35:41,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [981 Valid, 4679 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 465 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-12-14 09:35:41,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11513 states. [2022-12-14 09:35:41,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11513 to 6807. [2022-12-14 09:35:41,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6807 states, 4927 states have (on average 1.4682362492388878) internal successors, (7234), 5014 states have internal predecessors, (7234), 1554 states have call successors, (1554), 330 states have call predecessors, (1554), 325 states have return successors, (1550), 1514 states have call predecessors, (1550), 1550 states have call successors, (1550) [2022-12-14 09:35:41,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6807 states to 6807 states and 10338 transitions. [2022-12-14 09:35:41,665 INFO L78 Accepts]: Start accepts. Automaton has 6807 states and 10338 transitions. Word has length 272 [2022-12-14 09:35:41,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:35:41,666 INFO L495 AbstractCegarLoop]: Abstraction has 6807 states and 10338 transitions. [2022-12-14 09:35:41,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 09:35:41,666 INFO L276 IsEmpty]: Start isEmpty. Operand 6807 states and 10338 transitions. [2022-12-14 09:35:41,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-12-14 09:35:41,674 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:35:41,674 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:35:41,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 09:35:41,674 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:35:41,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:35:41,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1896447997, now seen corresponding path program 1 times [2022-12-14 09:35:41,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:35:41,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655224252] [2022-12-14 09:35:41,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:35:41,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:35:41,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:35:41,992 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2022-12-14 09:35:41,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:35:41,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655224252] [2022-12-14 09:35:41,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655224252] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:35:41,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:35:41,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:35:41,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064601353] [2022-12-14 09:35:41,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:35:41,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:35:41,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:35:41,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:35:41,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:35:41,995 INFO L87 Difference]: Start difference. First operand 6807 states and 10338 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 09:35:44,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:35:48,132 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 09:35:48,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:35:48,640 INFO L93 Difference]: Finished difference Result 17542 states and 27144 transitions. [2022-12-14 09:35:48,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:35:48,641 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 285 [2022-12-14 09:35:48,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:35:48,665 INFO L225 Difference]: With dead ends: 17542 [2022-12-14 09:35:48,665 INFO L226 Difference]: Without dead ends: 10783 [2022-12-14 09:35:48,678 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 09:35:48,678 INFO L413 NwaCegarLoop]: 1713 mSDtfsCounter, 548 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 2965 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:35:48,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 2965 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 291 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-12-14 09:35:48,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10783 states. [2022-12-14 09:35:49,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10783 to 6959. [2022-12-14 09:35:49,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6959 states, 5047 states have (on average 1.4681989300574598) internal successors, (7410), 5134 states have internal predecessors, (7410), 1586 states have call successors, (1586), 330 states have call predecessors, (1586), 325 states have return successors, (1582), 1546 states have call predecessors, (1582), 1582 states have call successors, (1582) [2022-12-14 09:35:49,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6959 states to 6959 states and 10578 transitions. [2022-12-14 09:35:49,068 INFO L78 Accepts]: Start accepts. Automaton has 6959 states and 10578 transitions. Word has length 285 [2022-12-14 09:35:49,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:35:49,068 INFO L495 AbstractCegarLoop]: Abstraction has 6959 states and 10578 transitions. [2022-12-14 09:35:49,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 09:35:49,069 INFO L276 IsEmpty]: Start isEmpty. Operand 6959 states and 10578 transitions. [2022-12-14 09:35:49,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-12-14 09:35:49,079 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:35:49,079 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:35:49,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 09:35:49,079 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:35:49,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:35:49,080 INFO L85 PathProgramCache]: Analyzing trace with hash -898551802, now seen corresponding path program 1 times [2022-12-14 09:35:49,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:35:49,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205025459] [2022-12-14 09:35:49,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:35:49,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:35:49,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:35:49,513 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2022-12-14 09:35:49,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:35:49,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205025459] [2022-12-14 09:35:49,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205025459] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:35:49,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:35:49,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:35:49,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130422534] [2022-12-14 09:35:49,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:35:49,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:35:49,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:35:49,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:35:49,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:35:49,515 INFO L87 Difference]: Start difference. First operand 6959 states and 10578 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 09:35:51,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:35:55,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 09:35:57,777 WARN L539 Checker$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 09:35:58,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:35:58,704 INFO L93 Difference]: Finished difference Result 19440 states and 30282 transitions. [2022-12-14 09:35:58,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:35:58,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 285 [2022-12-14 09:35:58,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:35:58,733 INFO L225 Difference]: With dead ends: 19440 [2022-12-14 09:35:58,733 INFO L226 Difference]: Without dead ends: 12529 [2022-12-14 09:35:58,747 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 09:35:58,747 INFO L413 NwaCegarLoop]: 1830 mSDtfsCounter, 1018 mSDsluCounter, 3194 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 103 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 5024 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:35:58,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1147 Valid, 5024 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 498 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2022-12-14 09:35:58,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12529 states. [2022-12-14 09:35:59,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12529 to 6975. [2022-12-14 09:35:59,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6975 states, 5063 states have (on average 1.4667193363618407) internal successors, (7426), 5150 states have internal predecessors, (7426), 1586 states have call successors, (1586), 330 states have call predecessors, (1586), 325 states have return successors, (1582), 1546 states have call predecessors, (1582), 1582 states have call successors, (1582) [2022-12-14 09:35:59,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6975 states to 6975 states and 10594 transitions. [2022-12-14 09:35:59,092 INFO L78 Accepts]: Start accepts. Automaton has 6975 states and 10594 transitions. Word has length 285 [2022-12-14 09:35:59,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:35:59,093 INFO L495 AbstractCegarLoop]: Abstraction has 6975 states and 10594 transitions. [2022-12-14 09:35:59,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 09:35:59,093 INFO L276 IsEmpty]: Start isEmpty. Operand 6975 states and 10594 transitions. [2022-12-14 09:35:59,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-12-14 09:35:59,102 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:35:59,102 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:35:59,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 09:35:59,102 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:35:59,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:35:59,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1406418932, now seen corresponding path program 1 times [2022-12-14 09:35:59,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:35:59,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729381814] [2022-12-14 09:35:59,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:35:59,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:35:59,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:35:59,804 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2022-12-14 09:35:59,804 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:35:59,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729381814] [2022-12-14 09:35:59,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729381814] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:35:59,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73290907] [2022-12-14 09:35:59,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:35:59,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:35:59,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412f58a4-3898-4c86-9396-d2db36136aa0/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:35:59,806 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412f58a4-3898-4c86-9396-d2db36136aa0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:35:59,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412f58a4-3898-4c86-9396-d2db36136aa0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 09:36:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:36:00,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 3948 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-14 09:36:00,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:36:00,872 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 436 trivial. 0 not checked. [2022-12-14 09:36:00,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:36:00,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73290907] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:36:00,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 09:36:00,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-14 09:36:00,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75569348] [2022-12-14 09:36:00,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:36:00,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:36:00,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:36:00,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:36:00,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-12-14 09:36:00,875 INFO L87 Difference]: Start difference. First operand 6975 states and 10594 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 09:36:09,587 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 09:36:10,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:36:10,840 INFO L93 Difference]: Finished difference Result 13080 states and 19968 transitions. [2022-12-14 09:36:10,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 09:36:10,841 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 286 [2022-12-14 09:36:10,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:36:10,868 INFO L225 Difference]: With dead ends: 13080 [2022-12-14 09:36:10,868 INFO L226 Difference]: Without dead ends: 13072 [2022-12-14 09:36:10,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-12-14 09:36:10,873 INFO L413 NwaCegarLoop]: 2488 mSDtfsCounter, 3131 mSDsluCounter, 3526 mSDsCounter, 0 mSdLazyCounter, 2243 mSolverCounterSat, 341 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3180 SdHoareTripleChecker+Valid, 6014 SdHoareTripleChecker+Invalid, 2585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 2243 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-12-14 09:36:10,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3180 Valid, 6014 Invalid, 2585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [341 Valid, 2243 Invalid, 1 Unknown, 0 Unchecked, 9.4s Time] [2022-12-14 09:36:10,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13072 states. [2022-12-14 09:36:11,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13072 to 12128. [2022-12-14 09:36:11,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12128 states, 8801 states have (on average 1.46846949210317) internal successors, (12924), 8970 states have internal predecessors, (12924), 2759 states have call successors, (2759), 574 states have call predecessors, (2759), 567 states have return successors, (2755), 2675 states have call predecessors, (2755), 2755 states have call successors, (2755) [2022-12-14 09:36:11,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12128 states to 12128 states and 18438 transitions. [2022-12-14 09:36:11,438 INFO L78 Accepts]: Start accepts. Automaton has 12128 states and 18438 transitions. Word has length 286 [2022-12-14 09:36:11,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:36:11,439 INFO L495 AbstractCegarLoop]: Abstraction has 12128 states and 18438 transitions. [2022-12-14 09:36:11,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 3 states have call successors, (32), 3 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 09:36:11,439 INFO L276 IsEmpty]: Start isEmpty. Operand 12128 states and 18438 transitions. [2022-12-14 09:36:11,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-12-14 09:36:11,449 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:36:11,449 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:36:11,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412f58a4-3898-4c86-9396-d2db36136aa0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 09:36:11,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412f58a4-3898-4c86-9396-d2db36136aa0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:36:11,650 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:36:11,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:36:11,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1426695089, now seen corresponding path program 1 times [2022-12-14 09:36:11,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:36:11,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498837849] [2022-12-14 09:36:11,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:36:11,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:36:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:36:12,107 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2022-12-14 09:36:12,108 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:36:12,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498837849] [2022-12-14 09:36:12,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498837849] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:36:12,108 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:36:12,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:36:12,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407684338] [2022-12-14 09:36:12,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:36:12,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 09:36:12,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:36:12,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 09:36:12,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 09:36:12,110 INFO L87 Difference]: Start difference. First operand 12128 states and 18438 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 09:36:17,138 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 09:36:17,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:36:17,779 INFO L93 Difference]: Finished difference Result 31479 states and 48736 transitions. [2022-12-14 09:36:17,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 09:36:17,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 287 [2022-12-14 09:36:17,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:36:17,834 INFO L225 Difference]: With dead ends: 31479 [2022-12-14 09:36:17,834 INFO L226 Difference]: Without dead ends: 19399 [2022-12-14 09:36:17,852 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 09:36:17,853 INFO L413 NwaCegarLoop]: 1532 mSDtfsCounter, 551 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 2755 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:36:17,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [663 Valid, 2755 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-12-14 09:36:17,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19399 states. [2022-12-14 09:36:18,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19399 to 12142. [2022-12-14 09:36:18,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12142 states, 8815 states have (on average 1.467725467952354) internal successors, (12938), 8984 states have internal predecessors, (12938), 2759 states have call successors, (2759), 574 states have call predecessors, (2759), 567 states have return successors, (2755), 2675 states have call predecessors, (2755), 2755 states have call successors, (2755) [2022-12-14 09:36:18,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12142 states to 12142 states and 18452 transitions. [2022-12-14 09:36:18,561 INFO L78 Accepts]: Start accepts. Automaton has 12142 states and 18452 transitions. Word has length 287 [2022-12-14 09:36:18,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:36:18,562 INFO L495 AbstractCegarLoop]: Abstraction has 12142 states and 18452 transitions. [2022-12-14 09:36:18,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 09:36:18,562 INFO L276 IsEmpty]: Start isEmpty. Operand 12142 states and 18452 transitions. [2022-12-14 09:36:18,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-12-14 09:36:18,574 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:36:18,575 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:36:18,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 09:36:18,575 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:36:18,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:36:18,575 INFO L85 PathProgramCache]: Analyzing trace with hash 2019239565, now seen corresponding path program 1 times [2022-12-14 09:36:18,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:36:18,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347635913] [2022-12-14 09:36:18,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:36:18,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:36:19,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:36:21,196 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2022-12-14 09:36:21,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:36:21,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347635913] [2022-12-14 09:36:21,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347635913] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:36:21,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:36:21,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 09:36:21,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059372365] [2022-12-14 09:36:21,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:36:21,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 09:36:21,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:36:21,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 09:36:21,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:36:21,199 INFO L87 Difference]: Start difference. First operand 12142 states and 18452 transitions. Second operand has 12 states, 7 states have (on average 16.714285714285715) internal successors, (117), 9 states have internal predecessors, (117), 4 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (29), 5 states have call predecessors, (29), 4 states have call successors, (29) [2022-12-14 09:36:23,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:36:25,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:36:28,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:36:37,058 WARN L539 Checker$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 09:36:37,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:36:37,899 INFO L93 Difference]: Finished difference Result 30690 states and 47478 transitions. [2022-12-14 09:36:37,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 09:36:37,900 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 7 states have (on average 16.714285714285715) internal successors, (117), 9 states have internal predecessors, (117), 4 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (29), 5 states have call predecessors, (29), 4 states have call successors, (29) Word has length 288 [2022-12-14 09:36:37,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:36:37,958 INFO L225 Difference]: With dead ends: 30690 [2022-12-14 09:36:37,958 INFO L226 Difference]: Without dead ends: 18596 [2022-12-14 09:36:37,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-12-14 09:36:37,978 INFO L413 NwaCegarLoop]: 1575 mSDtfsCounter, 890 mSDsluCounter, 15208 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 149 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 16783 SdHoareTripleChecker+Invalid, 1871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2022-12-14 09:36:37,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [942 Valid, 16783 Invalid, 1871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1721 Invalid, 1 Unknown, 0 Unchecked, 15.5s Time] [2022-12-14 09:36:37,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18596 states. [2022-12-14 09:36:38,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18596 to 12198. [2022-12-14 09:36:38,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12198 states, 8857 states have (on average 1.465507508185616) internal successors, (12980), 9026 states have internal predecessors, (12980), 2773 states have call successors, (2773), 574 states have call predecessors, (2773), 567 states have return successors, (2769), 2689 states have call predecessors, (2769), 2769 states have call successors, (2769) [2022-12-14 09:36:38,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12198 states to 12198 states and 18522 transitions. [2022-12-14 09:36:38,736 INFO L78 Accepts]: Start accepts. Automaton has 12198 states and 18522 transitions. Word has length 288 [2022-12-14 09:36:38,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:36:38,737 INFO L495 AbstractCegarLoop]: Abstraction has 12198 states and 18522 transitions. [2022-12-14 09:36:38,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 7 states have (on average 16.714285714285715) internal successors, (117), 9 states have internal predecessors, (117), 4 states have call successors, (30), 2 states have call predecessors, (30), 4 states have return successors, (29), 5 states have call predecessors, (29), 4 states have call successors, (29) [2022-12-14 09:36:38,737 INFO L276 IsEmpty]: Start isEmpty. Operand 12198 states and 18522 transitions. [2022-12-14 09:36:38,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2022-12-14 09:36:38,746 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:36:38,746 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:36:38,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 09:36:38,746 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:36:38,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:36:38,747 INFO L85 PathProgramCache]: Analyzing trace with hash -823663522, now seen corresponding path program 1 times [2022-12-14 09:36:38,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:36:38,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637663551] [2022-12-14 09:36:38,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:36:38,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:36:38,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:36:39,802 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2022-12-14 09:36:39,802 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:36:39,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637663551] [2022-12-14 09:36:39,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637663551] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:36:39,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:36:39,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 09:36:39,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144521312] [2022-12-14 09:36:39,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:36:39,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 09:36:39,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:36:39,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 09:36:39,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:36:39,804 INFO L87 Difference]: Start difference. First operand 12198 states and 18522 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 09:36:41,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:36:47,877 WARN L539 Checker$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 09:36:48,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:36:48,619 INFO L93 Difference]: Finished difference Result 31591 states and 48876 transitions. [2022-12-14 09:36:48,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 09:36:48,620 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) Word has length 292 [2022-12-14 09:36:48,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:36:48,660 INFO L225 Difference]: With dead ends: 31591 [2022-12-14 09:36:48,660 INFO L226 Difference]: Without dead ends: 19441 [2022-12-14 09:36:48,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 09:36:48,679 INFO L413 NwaCegarLoop]: 1563 mSDtfsCounter, 546 mSDsluCounter, 4347 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 5910 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-12-14 09:36:48,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 5910 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 574 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2022-12-14 09:36:48,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19441 states. [2022-12-14 09:36:49,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19441 to 12254. [2022-12-14 09:36:49,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12254 states, 8899 states have (on average 1.4633104843240814) internal successors, (13022), 9068 states have internal predecessors, (13022), 2773 states have call successors, (2773), 574 states have call predecessors, (2773), 581 states have return successors, (2811), 2703 states have call predecessors, (2811), 2769 states have call successors, (2811) [2022-12-14 09:36:49,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12254 states to 12254 states and 18606 transitions. [2022-12-14 09:36:49,510 INFO L78 Accepts]: Start accepts. Automaton has 12254 states and 18606 transitions. Word has length 292 [2022-12-14 09:36:49,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:36:49,511 INFO L495 AbstractCegarLoop]: Abstraction has 12254 states and 18606 transitions. [2022-12-14 09:36:49,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (29), 3 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 09:36:49,511 INFO L276 IsEmpty]: Start isEmpty. Operand 12254 states and 18606 transitions. [2022-12-14 09:36:49,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-12-14 09:36:49,519 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:36:49,519 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:36:49,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 09:36:49,519 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:36:49,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:36:49,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1508711519, now seen corresponding path program 1 times [2022-12-14 09:36:49,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:36:49,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841135514] [2022-12-14 09:36:49,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:36:49,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:36:49,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:36:51,414 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 516 trivial. 0 not checked. [2022-12-14 09:36:51,414 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:36:51,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841135514] [2022-12-14 09:36:51,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841135514] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:36:51,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:36:51,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-14 09:36:51,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378298807] [2022-12-14 09:36:51,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:36:51,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 09:36:51,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:36:51,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 09:36:51,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-12-14 09:36:51,416 INFO L87 Difference]: Start difference. First operand 12254 states and 18606 transitions. Second operand has 12 states, 7 states have (on average 17.428571428571427) internal successors, (122), 9 states have internal predecessors, (122), 4 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) [2022-12-14 09:36:54,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:36:56,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:36:57,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:36:58,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:37:03,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:37:04,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 09:37:11,488 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 09:37:12,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:37:12,675 INFO L93 Difference]: Finished difference Result 30914 states and 47786 transitions. [2022-12-14 09:37:12,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-14 09:37:12,676 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 7 states have (on average 17.428571428571427) internal successors, (122), 9 states have internal predecessors, (122), 4 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) Word has length 295 [2022-12-14 09:37:12,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:37:12,718 INFO L225 Difference]: With dead ends: 30914 [2022-12-14 09:37:12,718 INFO L226 Difference]: Without dead ends: 18708 [2022-12-14 09:37:12,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-12-14 09:37:12,739 INFO L413 NwaCegarLoop]: 1583 mSDtfsCounter, 883 mSDsluCounter, 15266 mSDsCounter, 0 mSdLazyCounter, 1757 mSolverCounterSat, 149 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 16849 SdHoareTripleChecker+Invalid, 1908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 149 IncrementalHoareTripleChecker+Valid, 1757 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2022-12-14 09:37:12,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 16849 Invalid, 1908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [149 Valid, 1757 Invalid, 2 Unknown, 0 Unchecked, 19.8s Time] [2022-12-14 09:37:12,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18708 states. [2022-12-14 09:37:13,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18708 to 12254. [2022-12-14 09:37:13,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12254 states, 8899 states have (on average 1.4633104843240814) internal successors, (13022), 9068 states have internal predecessors, (13022), 2773 states have call successors, (2773), 574 states have call predecessors, (2773), 581 states have return successors, (2811), 2703 states have call predecessors, (2811), 2769 states have call successors, (2811) [2022-12-14 09:37:13,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12254 states to 12254 states and 18606 transitions. [2022-12-14 09:37:13,632 INFO L78 Accepts]: Start accepts. Automaton has 12254 states and 18606 transitions. Word has length 295 [2022-12-14 09:37:13,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:37:13,633 INFO L495 AbstractCegarLoop]: Abstraction has 12254 states and 18606 transitions. [2022-12-14 09:37:13,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 7 states have (on average 17.428571428571427) internal successors, (122), 9 states have internal predecessors, (122), 4 states have call successors, (31), 2 states have call predecessors, (31), 4 states have return successors, (30), 5 states have call predecessors, (30), 4 states have call successors, (30) [2022-12-14 09:37:13,633 INFO L276 IsEmpty]: Start isEmpty. Operand 12254 states and 18606 transitions. [2022-12-14 09:37:13,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-12-14 09:37:13,641 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:37:13,641 INFO L195 NwaCegarLoop]: trace histogram [11, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:37:13,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 09:37:13,641 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:37:13,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:37:13,642 INFO L85 PathProgramCache]: Analyzing trace with hash 2028801639, now seen corresponding path program 1 times [2022-12-14 09:37:13,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:37:13,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532203123] [2022-12-14 09:37:13,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:37:13,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:37:14,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:37:15,045 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 560 trivial. 0 not checked. [2022-12-14 09:37:15,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:37:15,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532203123] [2022-12-14 09:37:15,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532203123] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:37:15,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:37:15,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 09:37:15,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493515943] [2022-12-14 09:37:15,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:37:15,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:37:15,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:37:15,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:37:15,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:37:15,047 INFO L87 Difference]: Start difference. First operand 12254 states and 18606 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-12-14 09:37:19,537 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 09:37:20,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:37:20,262 INFO L93 Difference]: Finished difference Result 27985 states and 42944 transitions. [2022-12-14 09:37:20,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:37:20,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 306 [2022-12-14 09:37:20,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:37:20,298 INFO L225 Difference]: With dead ends: 27985 [2022-12-14 09:37:20,298 INFO L226 Difference]: Without dead ends: 15779 [2022-12-14 09:37:20,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:37:20,320 INFO L413 NwaCegarLoop]: 1515 mSDtfsCounter, 549 mSDsluCounter, 1448 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 2963 SdHoareTripleChecker+Invalid, 412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-12-14 09:37:20,321 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 2963 Invalid, 412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 411 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2022-12-14 09:37:20,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15779 states. [2022-12-14 09:37:21,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15779 to 12268. [2022-12-14 09:37:21,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12268 states, 8913 states have (on average 1.4625827443060697) internal successors, (13036), 9082 states have internal predecessors, (13036), 2773 states have call successors, (2773), 574 states have call predecessors, (2773), 581 states have return successors, (2811), 2703 states have call predecessors, (2811), 2769 states have call successors, (2811) [2022-12-14 09:37:21,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12268 states to 12268 states and 18620 transitions. [2022-12-14 09:37:21,426 INFO L78 Accepts]: Start accepts. Automaton has 12268 states and 18620 transitions. Word has length 306 [2022-12-14 09:37:21,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:37:21,426 INFO L495 AbstractCegarLoop]: Abstraction has 12268 states and 18620 transitions. [2022-12-14 09:37:21,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-12-14 09:37:21,426 INFO L276 IsEmpty]: Start isEmpty. Operand 12268 states and 18620 transitions. [2022-12-14 09:37:21,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2022-12-14 09:37:21,434 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:37:21,435 INFO L195 NwaCegarLoop]: trace histogram [11, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:37:21,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 09:37:21,435 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 09:37:21,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:37:21,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1765639997, now seen corresponding path program 1 times [2022-12-14 09:37:21,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:37:21,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112130622] [2022-12-14 09:37:21,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:37:21,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:37:22,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:37:22,698 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2022-12-14 09:37:22,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:37:22,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112130622] [2022-12-14 09:37:22,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112130622] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:37:22,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960231780] [2022-12-14 09:37:22,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:37:22,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 09:37:22,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412f58a4-3898-4c86-9396-d2db36136aa0/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:37:22,700 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412f58a4-3898-4c86-9396-d2db36136aa0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 09:37:22,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_412f58a4-3898-4c86-9396-d2db36136aa0/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 09:37:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:37:23,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 4185 conjuncts, 97 conjunts are in the unsatisfiable core [2022-12-14 09:37:23,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:37:23,938 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 64 [2022-12-14 09:37:24,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:37:24,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 40 treesize of output 36 [2022-12-14 09:37:24,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:37:24,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:37:24,782 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 43 [2022-12-14 09:37:24,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:37:24,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 47 treesize of output 34 [2022-12-14 09:37:25,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:37:25,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:37:25,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:37:25,015 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 52 [2022-12-14 09:37:25,137 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 21 [2022-12-14 09:37:25,175 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2022-12-14 09:37:25,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 09:37:26,085 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3348 Int) (v_ArrVal_3344 (Array Int Int)) (v_ArrVal_3346 Int) (|v_ULTIMATE.start_validate_region_size_~rs#1.offset_10| Int) (v_ArrVal_3345 Int) (v_ArrVal_3351 Int) (v_ArrVal_3352 Int) (v_ArrVal_3350 Int)) (or (< |v_ULTIMATE.start_validate_region_size_~rs#1.offset_10| |c_ULTIMATE.start_parse_raid_params_~rs#1.offset|) (< 0 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_parse_raid_params_~#value~0#1.base| v_ArrVal_3344))) (store .cse0 |c_ULTIMATE.start_parse_raid_params_~rs#1.base| (store (store (store (store (store (store (select .cse0 |c_ULTIMATE.start_parse_raid_params_~rs#1.base|) (+ 406 |c_ULTIMATE.start_parse_raid_params_~rs#1.offset|) v_ArrVal_3346) (+ 526 |c_ULTIMATE.start_parse_raid_params_~rs#1.offset|) v_ArrVal_3345) (+ |v_ULTIMATE.start_validate_region_size_~rs#1.offset_10| 1674) v_ArrVal_3348) (+ 458 |c_ULTIMATE.start_parse_raid_params_~rs#1.offset|) v_ArrVal_3352) (+ 381 |c_ULTIMATE.start_parse_raid_params_~rs#1.offset|) v_ArrVal_3350) (+ 385 |c_ULTIMATE.start_parse_raid_params_~rs#1.offset|) v_ArrVal_3351))) |c_ULTIMATE.start_raid_ctr_~rs~5#1.base|) (+ |c_ULTIMATE.start_raid_ctr_~rs~5#1.offset| 450))))) is different from false [2022-12-14 09:37:26,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960231780] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 09:37:26,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1266134635] [2022-12-14 09:37:26,201 INFO L159 IcfgInterpreter]: Started Sifa with 163 locations of interest [2022-12-14 09:37:26,201 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 09:37:26,203 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 09:37:26,207 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 09:37:26,207 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 09:37:29,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:37:29,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:37:29,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:37:29,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:37:29,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:37:29,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:37:29,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:37:30,049 INFO L217 Elim1Store]: Index analysis took 1095 ms [2022-12-14 09:42:48,858 WARN L233 SmtUtils]: Spent 5.31m on a formula simplification. DAG size of input: 6864 DAG size of output: 2974 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 09:42:48,867 INFO L321 Elim1Store]: treesize reduction 30564, result has 15.1 percent of original size [2022-12-14 09:42:48,870 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 173 select indices, 173 select index equivalence classes, 13709 disjoint index pairs (out of 14878 index pairs), introduced 173 new quantified variables, introduced 1345 case distinctions, treesize of input 974 treesize of output 6061 [2022-12-14 09:43:02,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:02,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:02,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:02,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:02,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:02,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:02,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:43:02,203 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 165 select indices, 165 select index equivalence classes, 14713 disjoint index pairs (out of 13530 index pairs), introduced 165 new quantified variables, introduced 0 case distinctions, treesize of input 850 treesize of output 1356 [2022-12-14 09:43:48,349 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 09:43:48,353 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 09:43:48,358 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 7 treesize of output 6 [2022-12-14 09:44:05,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:05,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:05,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:05,468 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 331 select indices, 331 select index equivalence classes, 2405 disjoint index pairs (out of 54615 index pairs), introduced 331 new quantified variables, introduced 0 case distinctions, treesize of input 2412 treesize of output 994 [2022-12-14 09:44:08,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:08,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:08,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:08,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:08,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:08,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:08,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:08,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 172 select indices, 172 select index equivalence classes, 14713 disjoint index pairs (out of 14706 index pairs), introduced 172 new quantified variables, introduced 0 case distinctions, treesize of input 861 treesize of output 517 [2022-12-14 09:44:09,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:09,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:09,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:09,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:09,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:09,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:09,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:44:09,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 173 select indices, 173 select index equivalence classes, 14878 disjoint index pairs (out of 14878 index pairs), introduced 173 new quantified variables, introduced 0 case distinctions, treesize of input 866 treesize of output 520 [2022-12-14 09:45:04,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:04,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:04,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:04,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:04,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:04,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:04,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:04,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 172 select indices, 172 select index equivalence classes, 14713 disjoint index pairs (out of 14706 index pairs), introduced 172 new quantified variables, introduced 0 case distinctions, treesize of input 861 treesize of output 517 [2022-12-14 09:45:06,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:06,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:06,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:06,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:06,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:06,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:06,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:06,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 173 select indices, 173 select index equivalence classes, 14878 disjoint index pairs (out of 14878 index pairs), introduced 173 new quantified variables, introduced 0 case distinctions, treesize of input 866 treesize of output 520 [2022-12-14 09:45:09,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:09,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:09,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 09:45:09,770 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 331 select indices, 331 select index equivalence classes, 2405 disjoint index pairs (out of 54615 index pairs), introduced 331 new quantified variables, introduced 0 case distinctions, treesize of input 2412 treesize of output 994 [2022-12-14 09:45:41,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-12-14 09:45:42,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 09:45:43,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 09:45:57,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-12-14 09:45:58,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 09:45:58,699 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 09:46:32,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 09:46:32,892 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4 [2022-12-14 09:46:34,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 09:46:49,632 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 09:46:49,924 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 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 5 treesize of output 3 [2022-12-14 09:46:51,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 6 treesize of output 4