./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--video--console--fbcon.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/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_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--console--fbcon.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/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_8a7a475a-5ce0-4b1f-9b56-61a245408e01/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 037e795cce503850d2c4452c45fcb076e5748c33e58ba9a275ca2db56216e774 --- 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 15:22:13,976 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:22:13,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:22:13,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:22:13,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:22:13,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:22:13,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:22:13,992 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:22:13,993 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:22:13,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:22:13,994 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:22:13,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:22:13,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:22:13,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:22:13,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:22:13,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:22:13,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:22:13,999 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:22:14,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:22:14,001 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:22:14,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:22:14,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:22:14,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:22:14,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:22:14,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:22:14,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:22:14,013 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:22:14,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:22:14,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:22:14,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:22:14,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:22:14,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:22:14,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:22:14,016 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:22:14,017 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:22:14,017 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:22:14,017 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:22:14,017 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:22:14,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:22:14,018 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:22:14,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:22:14,019 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 15:22:14,032 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:22:14,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:22:14,032 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:22:14,032 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:22:14,033 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:22:14,033 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:22:14,033 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:22:14,033 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:22:14,033 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:22:14,033 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:22:14,034 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:22:14,034 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:22:14,034 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:22:14,034 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:22:14,034 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:22:14,034 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:22:14,034 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:22:14,034 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:22:14,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:22:14,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:22:14,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:22:14,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:22:14,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:22:14,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:22:14,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:22:14,035 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:22:14,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:22:14,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:22:14,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:22:14,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:22:14,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:22:14,036 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:22:14,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:22:14,036 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:22:14,036 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:22:14,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:22:14,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:22:14,037 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:22:14,037 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_8a7a475a-5ce0-4b1f-9b56-61a245408e01/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 037e795cce503850d2c4452c45fcb076e5748c33e58ba9a275ca2db56216e774 [2022-12-14 15:22:14,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:22:14,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:22:14,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:22:14,256 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:22:14,257 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:22:14,258 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--console--fbcon.ko-entry_point.cil.out.i [2022-12-14 15:22:16,878 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:22:17,267 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:22:17,267 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--console--fbcon.ko-entry_point.cil.out.i [2022-12-14 15:22:17,298 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/data/010714594/5990faf7fd5849e19945ed5698ee2375/FLAG0c6c3e851 [2022-12-14 15:22:17,311 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/data/010714594/5990faf7fd5849e19945ed5698ee2375 [2022-12-14 15:22:17,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:22:17,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:22:17,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:22:17,316 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:22:17,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:22:17,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:22:17" (1/1) ... [2022-12-14 15:22:17,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fe4c0da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:22:17, skipping insertion in model container [2022-12-14 15:22:17,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:22:17" (1/1) ... [2022-12-14 15:22:17,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:22:17,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:22:18,013 WARN L623 FunctionHandler]: Unknown extern function __msecs_to_jiffies [2022-12-14 15:22:18,093 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:22:18,417 WARN L623 FunctionHandler]: Unknown extern function fb_get_color_depth [2022-12-14 15:22:18,430 WARN L623 FunctionHandler]: Unknown extern function console_trylock [2022-12-14 15:22:18,432 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-12-14 15:22:18,435 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-12-14 15:22:18,444 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 15:22:18,444 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 15:22:18,445 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 15:22:18,461 WARN L623 FunctionHandler]: Unknown extern function do_take_over_console [2022-12-14 15:22:18,469 WARN L623 FunctionHandler]: Unknown extern function fbcon_set_tileops [2022-12-14 15:22:18,469 WARN L623 FunctionHandler]: Unknown extern function fbcon_set_bitops [2022-12-14 15:22:18,476 WARN L623 FunctionHandler]: Unknown extern function try_module_get [2022-12-14 15:22:18,479 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 15:22:18,487 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 15:22:18,487 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:18,488 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:18,488 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:18,488 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:18,489 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:18,489 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 15:22:18,490 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:22:18,497 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:22:18,499 WARN L623 FunctionHandler]: Unknown extern function redraw_screen [2022-12-14 15:22:18,505 WARN L623 FunctionHandler]: Unknown extern function con_is_bound [2022-12-14 15:22:18,511 WARN L623 FunctionHandler]: Unknown extern function fb_match_mode [2022-12-14 15:22:18,515 WARN L623 FunctionHandler]: Unknown extern function fb_videomode_to_var [2022-12-14 15:22:18,519 WARN L623 FunctionHandler]: Unknown extern function try_module_get [2022-12-14 15:22:18,520 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 15:22:18,520 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 15:22:18,521 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:18,522 WARN L623 FunctionHandler]: Unknown extern function get_default_font [2022-12-14 15:22:18,523 WARN L623 FunctionHandler]: Unknown extern function find_font [2022-12-14 15:22:18,524 WARN L623 FunctionHandler]: Unknown extern function get_default_font [2022-12-14 15:22:18,527 WARN L623 FunctionHandler]: Unknown extern function vc_resize [2022-12-14 15:22:18,534 WARN L623 FunctionHandler]: Unknown extern function get_default_font [2022-12-14 15:22:18,535 WARN L623 FunctionHandler]: Unknown extern function find_font [2022-12-14 15:22:18,536 WARN L623 FunctionHandler]: Unknown extern function get_default_font [2022-12-14 15:22:18,538 WARN L623 FunctionHandler]: Unknown extern function fb_get_color_depth [2022-12-14 15:22:18,540 WARN L623 FunctionHandler]: Unknown extern function con_set_default_unimap [2022-12-14 15:22:18,541 WARN L623 FunctionHandler]: Unknown extern function con_copy_unimap [2022-12-14 15:22:18,544 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:22:18,546 WARN L623 FunctionHandler]: Unknown extern function vc_resize [2022-12-14 15:22:18,553 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:18,557 WARN L623 FunctionHandler]: Unknown extern function con_is_bound [2022-12-14 15:22:18,573 WARN L623 FunctionHandler]: Unknown extern function fb_set_var [2022-12-14 15:22:18,576 WARN L623 FunctionHandler]: Unknown extern function fb_get_color_depth [2022-12-14 15:22:18,577 WARN L623 FunctionHandler]: Unknown extern function con_set_default_unimap [2022-12-14 15:22:18,578 WARN L623 FunctionHandler]: Unknown extern function con_copy_unimap [2022-12-14 15:22:18,579 WARN L623 FunctionHandler]: Unknown extern function vc_resize [2022-12-14 15:22:18,580 WARN L623 FunctionHandler]: Unknown extern function redraw_screen [2022-12-14 15:22:18,610 WARN L623 FunctionHandler]: Unknown extern function console_conditional_schedule [2022-12-14 15:22:18,610 WARN L623 FunctionHandler]: Unknown extern function console_conditional_schedule [2022-12-14 15:22:18,616 WARN L623 FunctionHandler]: Unknown extern function console_conditional_schedule [2022-12-14 15:22:18,616 WARN L623 FunctionHandler]: Unknown extern function console_conditional_schedule [2022-12-14 15:22:18,623 WARN L623 FunctionHandler]: Unknown extern function console_conditional_schedule [2022-12-14 15:22:18,623 WARN L623 FunctionHandler]: Unknown extern function console_conditional_schedule [2022-12-14 15:22:18,659 WARN L623 FunctionHandler]: Unknown extern function fb_find_best_mode [2022-12-14 15:22:18,659 WARN L623 FunctionHandler]: Unknown extern function fb_videomode_to_var [2022-12-14 15:22:18,660 WARN L623 FunctionHandler]: Unknown extern function fb_set_var [2022-12-14 15:22:18,665 WARN L623 FunctionHandler]: Unknown extern function fb_set_var [2022-12-14 15:22:18,667 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:22:18,668 WARN L623 FunctionHandler]: Unknown extern function fb_get_color_depth [2022-12-14 15:22:18,671 WARN L623 FunctionHandler]: Unknown extern function fb_show_logo [2022-12-14 15:22:18,671 WARN L623 FunctionHandler]: Unknown extern function update_region [2022-12-14 15:22:18,676 WARN L623 FunctionHandler]: Unknown extern function lock_fb_info [2022-12-14 15:22:18,677 WARN L623 FunctionHandler]: Unknown extern function fb_notifier_call_chain [2022-12-14 15:22:18,678 WARN L623 FunctionHandler]: Unknown extern function fb_set_var [2022-12-14 15:22:18,680 WARN L623 FunctionHandler]: Unknown extern function fb_blank [2022-12-14 15:22:18,680 WARN L623 FunctionHandler]: Unknown extern function redraw_screen [2022-12-14 15:22:18,706 WARN L623 FunctionHandler]: Unknown extern function vc_resize [2022-12-14 15:22:18,706 WARN L623 FunctionHandler]: Unknown extern function redraw_screen [2022-12-14 15:22:18,707 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:18,718 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 15:22:18,720 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 15:22:18,720 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:18,725 WARN L623 FunctionHandler]: Unknown extern function get_default_font [2022-12-14 15:22:18,726 WARN L623 FunctionHandler]: Unknown extern function find_font [2022-12-14 15:22:18,728 WARN L623 FunctionHandler]: Unknown extern function fb_get_color_depth [2022-12-14 15:22:18,730 WARN L623 FunctionHandler]: Unknown extern function fb_default_cmap [2022-12-14 15:22:18,730 WARN L623 FunctionHandler]: Unknown extern function fb_copy_cmap [2022-12-14 15:22:18,730 WARN L623 FunctionHandler]: Unknown extern function fb_set_cmap [2022-12-14 15:22:18,748 WARN L623 FunctionHandler]: Unknown extern function update_region [2022-12-14 15:22:18,758 WARN L623 FunctionHandler]: Unknown extern function redraw_screen [2022-12-14 15:22:18,760 WARN L623 FunctionHandler]: Unknown extern function vc_resize [2022-12-14 15:22:18,761 WARN L623 FunctionHandler]: Unknown extern function redraw_screen [2022-12-14 15:22:18,764 WARN L623 FunctionHandler]: Unknown extern function vc_resize [2022-12-14 15:22:18,769 WARN L623 FunctionHandler]: Unknown extern function fb_mode_is_equal [2022-12-14 15:22:18,774 WARN L623 FunctionHandler]: Unknown extern function do_unbind_con_driver [2022-12-14 15:22:18,784 WARN L623 FunctionHandler]: Unknown extern function do_unregister_con_driver [2022-12-14 15:22:18,789 WARN L623 FunctionHandler]: Unknown extern function con_is_bound [2022-12-14 15:22:18,789 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:22:18,794 WARN L623 FunctionHandler]: Unknown extern function fb_is_primary_device [2022-12-14 15:22:18,794 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:22:18,795 WARN L623 FunctionHandler]: Unknown extern function con_is_bound [2022-12-14 15:22:18,795 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:22:18,804 WARN L623 FunctionHandler]: Unknown extern function do_blank_screen [2022-12-14 15:22:18,804 WARN L623 FunctionHandler]: Unknown extern function do_unblank_screen [2022-12-14 15:22:18,809 WARN L623 FunctionHandler]: Unknown extern function fb_find_nearest_mode [2022-12-14 15:22:18,809 WARN L623 FunctionHandler]: Unknown extern function fb_videomode_to_var [2022-12-14 15:22:18,826 WARN L623 FunctionHandler]: Unknown extern function console_lock [2022-12-14 15:22:18,826 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-12-14 15:22:18,827 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-12-14 15:22:18,831 WARN L623 FunctionHandler]: Unknown extern function console_lock [2022-12-14 15:22:18,832 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-12-14 15:22:18,832 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-12-14 15:22:18,848 WARN L623 FunctionHandler]: Unknown extern function console_lock [2022-12-14 15:22:18,849 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-12-14 15:22:18,854 WARN L623 FunctionHandler]: Unknown extern function console_lock [2022-12-14 15:22:18,855 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-12-14 15:22:18,858 WARN L623 FunctionHandler]: Unknown extern function console_lock [2022-12-14 15:22:18,859 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-12-14 15:22:18,859 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-12-14 15:22:18,864 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 15:22:18,865 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 15:22:18,866 WARN L623 FunctionHandler]: Unknown extern function console_lock [2022-12-14 15:22:18,866 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-12-14 15:22:18,867 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:18,868 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 15:22:18,868 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:18,868 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:18,869 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:18,872 WARN L623 FunctionHandler]: Unknown extern function console_lock [2022-12-14 15:22:18,873 WARN L623 FunctionHandler]: Unknown extern function fb_register_client [2022-12-14 15:22:18,873 WARN L623 FunctionHandler]: Unknown extern function device_create [2022-12-14 15:22:18,873 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:22:18,874 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-12-14 15:22:18,877 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 15:22:18,881 WARN L623 FunctionHandler]: Unknown extern function console_lock [2022-12-14 15:22:18,881 WARN L623 FunctionHandler]: Unknown extern function fb_unregister_client [2022-12-14 15:22:18,882 WARN L623 FunctionHandler]: Unknown extern function device_destroy [2022-12-14 15:22:18,882 WARN L623 FunctionHandler]: Unknown extern function do_unregister_con_driver [2022-12-14 15:22:18,882 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-12-14 15:22:18,897 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 15:22:18,903 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 15:22:18,903 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 15:22:18,903 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 15:22:18,904 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 15:22:18,904 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 15:22:18,904 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 15:22:18,905 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:22:18,905 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:22:18,905 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 15:22:18,905 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 15:22:18,906 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 15:22:18,906 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:22:18,906 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 15:22:18,906 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:22:18,907 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:22:18,907 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 15:22:18,907 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 15:22:18,907 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 15:22:18,911 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_8a7a475a-5ce0-4b1f-9b56-61a245408e01/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--console--fbcon.ko-entry_point.cil.out.i[261739,261752] [2022-12-14 15:22:19,080 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:22:19,082 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:22:19,082 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:22:19,082 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:22:19,082 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:22:19,083 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:22:19,084 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:22:19,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:22:19,118 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:22:19,170 WARN L623 FunctionHandler]: Unknown extern function __msecs_to_jiffies [2022-12-14 15:22:19,170 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:22:19,179 WARN L623 FunctionHandler]: Unknown extern function fb_get_color_depth [2022-12-14 15:22:19,181 WARN L623 FunctionHandler]: Unknown extern function console_trylock [2022-12-14 15:22:19,182 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-12-14 15:22:19,182 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-12-14 15:22:19,184 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 15:22:19,184 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 15:22:19,185 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-12-14 15:22:19,187 WARN L623 FunctionHandler]: Unknown extern function do_take_over_console [2022-12-14 15:22:19,188 WARN L623 FunctionHandler]: Unknown extern function fbcon_set_tileops [2022-12-14 15:22:19,188 WARN L623 FunctionHandler]: Unknown extern function fbcon_set_bitops [2022-12-14 15:22:19,190 WARN L623 FunctionHandler]: Unknown extern function try_module_get [2022-12-14 15:22:19,192 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 15:22:19,206 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 15:22:19,207 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:19,207 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:19,207 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:19,207 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:19,207 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:19,208 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 15:22:19,210 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:22:19,213 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:22:19,214 WARN L623 FunctionHandler]: Unknown extern function redraw_screen [2022-12-14 15:22:19,215 WARN L623 FunctionHandler]: Unknown extern function con_is_bound [2022-12-14 15:22:19,217 WARN L623 FunctionHandler]: Unknown extern function fb_match_mode [2022-12-14 15:22:19,217 WARN L623 FunctionHandler]: Unknown extern function fb_videomode_to_var [2022-12-14 15:22:19,220 WARN L623 FunctionHandler]: Unknown extern function try_module_get [2022-12-14 15:22:19,222 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 15:22:19,222 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 15:22:19,223 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:19,224 WARN L623 FunctionHandler]: Unknown extern function get_default_font [2022-12-14 15:22:19,224 WARN L623 FunctionHandler]: Unknown extern function find_font [2022-12-14 15:22:19,224 WARN L623 FunctionHandler]: Unknown extern function get_default_font [2022-12-14 15:22:19,226 WARN L623 FunctionHandler]: Unknown extern function vc_resize [2022-12-14 15:22:19,230 WARN L623 FunctionHandler]: Unknown extern function get_default_font [2022-12-14 15:22:19,230 WARN L623 FunctionHandler]: Unknown extern function find_font [2022-12-14 15:22:19,230 WARN L623 FunctionHandler]: Unknown extern function get_default_font [2022-12-14 15:22:19,231 WARN L623 FunctionHandler]: Unknown extern function fb_get_color_depth [2022-12-14 15:22:19,232 WARN L623 FunctionHandler]: Unknown extern function con_set_default_unimap [2022-12-14 15:22:19,233 WARN L623 FunctionHandler]: Unknown extern function con_copy_unimap [2022-12-14 15:22:19,235 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:22:19,236 WARN L623 FunctionHandler]: Unknown extern function vc_resize [2022-12-14 15:22:19,238 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:19,240 WARN L623 FunctionHandler]: Unknown extern function con_is_bound [2022-12-14 15:22:19,248 WARN L623 FunctionHandler]: Unknown extern function fb_set_var [2022-12-14 15:22:19,250 WARN L623 FunctionHandler]: Unknown extern function fb_get_color_depth [2022-12-14 15:22:19,251 WARN L623 FunctionHandler]: Unknown extern function con_set_default_unimap [2022-12-14 15:22:19,251 WARN L623 FunctionHandler]: Unknown extern function con_copy_unimap [2022-12-14 15:22:19,252 WARN L623 FunctionHandler]: Unknown extern function vc_resize [2022-12-14 15:22:19,252 WARN L623 FunctionHandler]: Unknown extern function redraw_screen [2022-12-14 15:22:19,267 WARN L623 FunctionHandler]: Unknown extern function console_conditional_schedule [2022-12-14 15:22:19,268 WARN L623 FunctionHandler]: Unknown extern function console_conditional_schedule [2022-12-14 15:22:19,269 WARN L623 FunctionHandler]: Unknown extern function console_conditional_schedule [2022-12-14 15:22:19,270 WARN L623 FunctionHandler]: Unknown extern function console_conditional_schedule [2022-12-14 15:22:19,273 WARN L623 FunctionHandler]: Unknown extern function console_conditional_schedule [2022-12-14 15:22:19,273 WARN L623 FunctionHandler]: Unknown extern function console_conditional_schedule [2022-12-14 15:22:19,293 WARN L623 FunctionHandler]: Unknown extern function fb_find_best_mode [2022-12-14 15:22:19,293 WARN L623 FunctionHandler]: Unknown extern function fb_videomode_to_var [2022-12-14 15:22:19,294 WARN L623 FunctionHandler]: Unknown extern function fb_set_var [2022-12-14 15:22:19,297 WARN L623 FunctionHandler]: Unknown extern function fb_set_var [2022-12-14 15:22:19,299 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:22:19,300 WARN L623 FunctionHandler]: Unknown extern function fb_get_color_depth [2022-12-14 15:22:19,301 WARN L623 FunctionHandler]: Unknown extern function fb_show_logo [2022-12-14 15:22:19,301 WARN L623 FunctionHandler]: Unknown extern function update_region [2022-12-14 15:22:19,303 WARN L623 FunctionHandler]: Unknown extern function lock_fb_info [2022-12-14 15:22:19,304 WARN L623 FunctionHandler]: Unknown extern function fb_notifier_call_chain [2022-12-14 15:22:19,305 WARN L623 FunctionHandler]: Unknown extern function fb_set_var [2022-12-14 15:22:19,307 WARN L623 FunctionHandler]: Unknown extern function fb_blank [2022-12-14 15:22:19,307 WARN L623 FunctionHandler]: Unknown extern function redraw_screen [2022-12-14 15:22:19,316 WARN L623 FunctionHandler]: Unknown extern function vc_resize [2022-12-14 15:22:19,317 WARN L623 FunctionHandler]: Unknown extern function redraw_screen [2022-12-14 15:22:19,317 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:19,320 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-12-14 15:22:19,320 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 15:22:19,321 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:19,321 WARN L623 FunctionHandler]: Unknown extern function get_default_font [2022-12-14 15:22:19,322 WARN L623 FunctionHandler]: Unknown extern function find_font [2022-12-14 15:22:19,323 WARN L623 FunctionHandler]: Unknown extern function fb_get_color_depth [2022-12-14 15:22:19,324 WARN L623 FunctionHandler]: Unknown extern function fb_default_cmap [2022-12-14 15:22:19,324 WARN L623 FunctionHandler]: Unknown extern function fb_copy_cmap [2022-12-14 15:22:19,324 WARN L623 FunctionHandler]: Unknown extern function fb_set_cmap [2022-12-14 15:22:19,329 WARN L623 FunctionHandler]: Unknown extern function update_region [2022-12-14 15:22:19,331 WARN L623 FunctionHandler]: Unknown extern function redraw_screen [2022-12-14 15:22:19,332 WARN L623 FunctionHandler]: Unknown extern function vc_resize [2022-12-14 15:22:19,333 WARN L623 FunctionHandler]: Unknown extern function redraw_screen [2022-12-14 15:22:19,335 WARN L623 FunctionHandler]: Unknown extern function vc_resize [2022-12-14 15:22:19,336 WARN L623 FunctionHandler]: Unknown extern function fb_mode_is_equal [2022-12-14 15:22:19,336 WARN L623 FunctionHandler]: Unknown extern function do_unbind_con_driver [2022-12-14 15:22:19,338 WARN L623 FunctionHandler]: Unknown extern function do_unregister_con_driver [2022-12-14 15:22:19,339 WARN L623 FunctionHandler]: Unknown extern function con_is_bound [2022-12-14 15:22:19,339 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:22:19,339 WARN L623 FunctionHandler]: Unknown extern function fb_is_primary_device [2022-12-14 15:22:19,339 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:22:19,340 WARN L623 FunctionHandler]: Unknown extern function con_is_bound [2022-12-14 15:22:19,340 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:22:19,341 WARN L623 FunctionHandler]: Unknown extern function do_blank_screen [2022-12-14 15:22:19,341 WARN L623 FunctionHandler]: Unknown extern function do_unblank_screen [2022-12-14 15:22:19,342 WARN L623 FunctionHandler]: Unknown extern function fb_find_nearest_mode [2022-12-14 15:22:19,342 WARN L623 FunctionHandler]: Unknown extern function fb_videomode_to_var [2022-12-14 15:22:19,346 WARN L623 FunctionHandler]: Unknown extern function console_lock [2022-12-14 15:22:19,347 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-12-14 15:22:19,347 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-12-14 15:22:19,347 WARN L623 FunctionHandler]: Unknown extern function console_lock [2022-12-14 15:22:19,348 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-12-14 15:22:19,348 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-12-14 15:22:19,348 WARN L623 FunctionHandler]: Unknown extern function console_lock [2022-12-14 15:22:19,348 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-12-14 15:22:19,349 WARN L623 FunctionHandler]: Unknown extern function console_lock [2022-12-14 15:22:19,349 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-12-14 15:22:19,350 WARN L623 FunctionHandler]: Unknown extern function console_lock [2022-12-14 15:22:19,350 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-12-14 15:22:19,350 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-12-14 15:22:19,352 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 15:22:19,352 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 15:22:19,353 WARN L623 FunctionHandler]: Unknown extern function console_lock [2022-12-14 15:22:19,353 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-12-14 15:22:19,353 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:19,366 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 15:22:19,366 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:19,366 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:19,367 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 15:22:19,367 WARN L623 FunctionHandler]: Unknown extern function console_lock [2022-12-14 15:22:19,368 WARN L623 FunctionHandler]: Unknown extern function fb_register_client [2022-12-14 15:22:19,368 WARN L623 FunctionHandler]: Unknown extern function device_create [2022-12-14 15:22:19,368 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 15:22:19,369 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-12-14 15:22:19,369 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 15:22:19,370 WARN L623 FunctionHandler]: Unknown extern function console_lock [2022-12-14 15:22:19,370 WARN L623 FunctionHandler]: Unknown extern function fb_unregister_client [2022-12-14 15:22:19,370 WARN L623 FunctionHandler]: Unknown extern function device_destroy [2022-12-14 15:22:19,370 WARN L623 FunctionHandler]: Unknown extern function do_unregister_con_driver [2022-12-14 15:22:19,370 WARN L623 FunctionHandler]: Unknown extern function console_unlock [2022-12-14 15:22:19,376 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 15:22:19,382 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 15:22:19,382 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 15:22:19,383 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 15:22:19,383 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 15:22:19,383 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 15:22:19,384 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 15:22:19,384 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:22:19,384 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:22:19,384 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 15:22:19,384 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 15:22:19,385 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 15:22:19,385 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:22:19,385 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 15:22:19,385 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:22:19,386 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 15:22:19,386 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 15:22:19,386 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 15:22:19,387 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 15:22:19,387 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_8a7a475a-5ce0-4b1f-9b56-61a245408e01/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--console--fbcon.ko-entry_point.cil.out.i[261739,261752] [2022-12-14 15:22:19,397 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:22:19,398 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:22:19,398 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:22:19,399 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:22:19,399 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:22:19,400 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:22:19,400 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 15:22:19,402 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:22:19,480 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:22:19,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:22:19 WrapperNode [2022-12-14 15:22:19,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:22:19,481 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:22:19,481 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:22:19,481 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:22:19,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:22:19" (1/1) ... [2022-12-14 15:22:19,555 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:22:19" (1/1) ... [2022-12-14 15:22:19,681 INFO L138 Inliner]: procedures = 308, calls = 2772, calls flagged for inlining = 113, calls inlined = 103, statements flattened = 6302 [2022-12-14 15:22:19,681 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:22:19,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:22:19,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:22:19,682 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:22:19,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:22:19" (1/1) ... [2022-12-14 15:22:19,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:22:19" (1/1) ... [2022-12-14 15:22:19,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:22:19" (1/1) ... [2022-12-14 15:22:19,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:22:19" (1/1) ... [2022-12-14 15:22:19,885 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:22:19" (1/1) ... [2022-12-14 15:22:19,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:22:19" (1/1) ... [2022-12-14 15:22:19,960 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:22:19" (1/1) ... [2022-12-14 15:22:19,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:22:19" (1/1) ... [2022-12-14 15:22:20,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:22:20,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:22:20,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:22:20,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:22:20,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:22:19" (1/1) ... [2022-12-14 15:22:20,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:22:20,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:22:20,064 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:22:20,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:22:20,095 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_origin [2022-12-14 15:22:20,095 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_origin [2022-12-14 15:22:20,095 INFO L130 BoogieDeclarations]: Found specification of procedure con_copy_unimap [2022-12-14 15:22:20,095 INFO L138 BoogieDeclarations]: Found implementation of procedure con_copy_unimap [2022-12-14 15:22:20,095 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_exit [2022-12-14 15:22:20,095 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_exit [2022-12-14 15:22:20,095 INFO L130 BoogieDeclarations]: Found specification of procedure con_is_bound [2022-12-14 15:22:20,095 INFO L138 BoogieDeclarations]: Found implementation of procedure con_is_bound [2022-12-14 15:22:20,095 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_bmove [2022-12-14 15:22:20,095 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_bmove [2022-12-14 15:22:20,095 INFO L130 BoogieDeclarations]: Found specification of procedure var_to_display [2022-12-14 15:22:20,096 INFO L138 BoogieDeclarations]: Found implementation of procedure var_to_display [2022-12-14 15:22:20,096 INFO L130 BoogieDeclarations]: Found specification of procedure do_fbcon_takeover [2022-12-14 15:22:20,096 INFO L138 BoogieDeclarations]: Found implementation of procedure do_fbcon_takeover [2022-12-14 15:22:20,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 15:22:20,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 15:22:20,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 15:22:20,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 15:22:20,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 15:22:20,096 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 15:22:20,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 15:22:20,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 15:22:20,096 INFO L130 BoogieDeclarations]: Found specification of procedure con2fb_release_oldinfo [2022-12-14 15:22:20,096 INFO L138 BoogieDeclarations]: Found implementation of procedure con2fb_release_oldinfo [2022-12-14 15:22:20,096 INFO L130 BoogieDeclarations]: Found specification of procedure scr_memcpyw [2022-12-14 15:22:20,096 INFO L138 BoogieDeclarations]: Found implementation of procedure scr_memcpyw [2022-12-14 15:22:20,097 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_cursor [2022-12-14 15:22:20,097 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_cursor [2022-12-14 15:22:20,097 INFO L130 BoogieDeclarations]: Found specification of procedure get_default_font [2022-12-14 15:22:20,097 INFO L138 BoogieDeclarations]: Found implementation of procedure get_default_font [2022-12-14 15:22:20,097 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-12-14 15:22:20,097 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-12-14 15:22:20,097 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_putcs [2022-12-14 15:22:20,097 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_putcs [2022-12-14 15:22:20,097 INFO L130 BoogieDeclarations]: Found specification of procedure get_color [2022-12-14 15:22:20,097 INFO L138 BoogieDeclarations]: Found implementation of procedure get_color [2022-12-14 15:22:20,097 INFO L130 BoogieDeclarations]: Found specification of procedure scr_memsetw [2022-12-14 15:22:20,097 INFO L138 BoogieDeclarations]: Found implementation of procedure scr_memsetw [2022-12-14 15:22:20,097 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-14 15:22:20,097 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-14 15:22:20,097 INFO L130 BoogieDeclarations]: Found specification of procedure do_unregister_con_driver [2022-12-14 15:22:20,097 INFO L138 BoogieDeclarations]: Found implementation of procedure do_unregister_con_driver [2022-12-14 15:22:20,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-14 15:22:20,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-14 15:22:20,098 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_get_font [2022-12-14 15:22:20,098 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_get_font [2022-12-14 15:22:20,098 INFO L130 BoogieDeclarations]: Found specification of procedure real_y [2022-12-14 15:22:20,098 INFO L138 BoogieDeclarations]: Found implementation of procedure real_y [2022-12-14 15:22:20,098 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_update_softback [2022-12-14 15:22:20,098 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_update_softback [2022-12-14 15:22:20,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 15:22:20,098 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 15:22:20,098 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 15:22:20,098 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 15:22:20,098 INFO L130 BoogieDeclarations]: Found specification of procedure update_region [2022-12-14 15:22:20,099 INFO L138 BoogieDeclarations]: Found implementation of procedure update_region [2022-12-14 15:22:20,099 INFO L130 BoogieDeclarations]: Found specification of procedure fb_flashcursor [2022-12-14 15:22:20,099 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_flashcursor [2022-12-14 15:22:20,099 INFO L130 BoogieDeclarations]: Found specification of procedure find_font [2022-12-14 15:22:20,099 INFO L138 BoogieDeclarations]: Found implementation of procedure find_font [2022-12-14 15:22:20,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:22:20,099 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_scrolldelta [2022-12-14 15:22:20,099 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_scrolldelta [2022-12-14 15:22:20,100 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 15:22:20,100 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_disp [2022-12-14 15:22:20,100 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_disp [2022-12-14 15:22:20,100 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-12-14 15:22:20,100 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-12-14 15:22:20,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 15:22:20,100 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_clear_margins [2022-12-14 15:22:20,100 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_clear_margins [2022-12-14 15:22:20,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 15:22:20,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 15:22:20,100 INFO L130 BoogieDeclarations]: Found specification of procedure display_to_var [2022-12-14 15:22:20,100 INFO L138 BoogieDeclarations]: Found implementation of procedure display_to_var [2022-12-14 15:22:20,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:22:20,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 15:22:20,100 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~X~int~X~int~TO~VOID [2022-12-14 15:22:20,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~X~int~X~int~TO~VOID [2022-12-14 15:22:20,101 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2022-12-14 15:22:20,101 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2022-12-14 15:22:20,101 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 15:22:20,101 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 15:22:20,101 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-12-14 15:22:20,101 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-12-14 15:22:20,101 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-14 15:22:20,101 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-14 15:22:20,101 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_debug_enter [2022-12-14 15:22:20,101 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_debug_enter [2022-12-14 15:22:20,101 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_del_cursor_timer [2022-12-14 15:22:20,101 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_del_cursor_timer [2022-12-14 15:22:20,101 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_redraw_move [2022-12-14 15:22:20,101 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_redraw_move [2022-12-14 15:22:20,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 15:22:20,102 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-12-14 15:22:20,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-12-14 15:22:20,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 15:22:20,102 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_is_inactive [2022-12-14 15:22:20,102 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_is_inactive [2022-12-14 15:22:20,102 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_clear [2022-12-14 15:22:20,102 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_clear [2022-12-14 15:22:20,102 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_add_cursor_timer [2022-12-14 15:22:20,102 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_add_cursor_timer [2022-12-14 15:22:20,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 15:22:20,102 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_var [2022-12-14 15:22:20,102 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_var [2022-12-14 15:22:20,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 15:22:20,102 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 15:22:20,102 INFO L130 BoogieDeclarations]: Found specification of procedure set_blitting_type [2022-12-14 15:22:20,102 INFO L138 BoogieDeclarations]: Found implementation of procedure set_blitting_type [2022-12-14 15:22:20,103 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_bmove_rec [2022-12-14 15:22:20,103 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_bmove_rec [2022-12-14 15:22:20,103 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 15:22:20,103 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 15:22:20,103 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_palette [2022-12-14 15:22:20,103 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_palette [2022-12-14 15:22:20,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 15:22:20,103 INFO L130 BoogieDeclarations]: Found specification of procedure set_con2fb_map [2022-12-14 15:22:20,103 INFO L138 BoogieDeclarations]: Found implementation of procedure set_con2fb_map [2022-12-14 15:22:20,103 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_debug_leave [2022-12-14 15:22:20,103 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_debug_leave [2022-12-14 15:22:20,103 INFO L130 BoogieDeclarations]: Found specification of procedure console_conditional_schedule [2022-12-14 15:22:20,103 INFO L138 BoogieDeclarations]: Found implementation of procedure console_conditional_schedule [2022-12-14 15:22:20,103 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_copy_font [2022-12-14 15:22:20,103 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_copy_font [2022-12-14 15:22:20,103 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_do_set_font [2022-12-14 15:22:20,103 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_do_set_font [2022-12-14 15:22:20,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-12-14 15:22:20,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-12-14 15:22:20,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 15:22:20,104 INFO L130 BoogieDeclarations]: Found specification of procedure con2fb_acquire_newinfo [2022-12-14 15:22:20,104 INFO L138 BoogieDeclarations]: Found implementation of procedure con2fb_acquire_newinfo [2022-12-14 15:22:20,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-12-14 15:22:20,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-12-14 15:22:20,104 INFO L130 BoogieDeclarations]: Found specification of procedure fb_get_color_depth [2022-12-14 15:22:20,104 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_get_color_depth [2022-12-14 15:22:20,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:22:20,104 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_prepare_logo [2022-12-14 15:22:20,104 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_prepare_logo [2022-12-14 15:22:20,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 15:22:20,104 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_redraw_blit [2022-12-14 15:22:20,104 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_redraw_blit [2022-12-14 15:22:20,104 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2022-12-14 15:22:20,104 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2022-12-14 15:22:20,105 INFO L130 BoogieDeclarations]: Found specification of procedure fb_videomode_to_var [2022-12-14 15:22:20,105 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_videomode_to_var [2022-12-14 15:22:20,105 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~TO~VOID [2022-12-14 15:22:20,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~int~TO~VOID [2022-12-14 15:22:20,105 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 15:22:20,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 15:22:20,105 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2022-12-14 15:22:20,105 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2022-12-14 15:22:20,105 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_modechanged [2022-12-14 15:22:20,105 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_modechanged [2022-12-14 15:22:20,105 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2022-12-14 15:22:20,105 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2022-12-14 15:22:20,105 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_invert_region [2022-12-14 15:22:20,105 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_invert_region [2022-12-14 15:22:20,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_fb_info [2022-12-14 15:22:20,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_fb_info [2022-12-14 15:22:20,105 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_set_all_vcs [2022-12-14 15:22:20,106 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_set_all_vcs [2022-12-14 15:22:20,106 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_redraw [2022-12-14 15:22:20,106 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_redraw [2022-12-14 15:22:20,106 INFO L130 BoogieDeclarations]: Found specification of procedure updatescrollmode [2022-12-14 15:22:20,106 INFO L138 BoogieDeclarations]: Found implementation of procedure updatescrollmode [2022-12-14 15:22:20,106 INFO L130 BoogieDeclarations]: Found specification of procedure fbcon_switch [2022-12-14 15:22:20,106 INFO L138 BoogieDeclarations]: Found implementation of procedure fbcon_switch [2022-12-14 15:22:20,106 INFO L130 BoogieDeclarations]: Found specification of procedure vc_resize [2022-12-14 15:22:20,106 INFO L138 BoogieDeclarations]: Found implementation of procedure vc_resize [2022-12-14 15:22:20,106 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-14 15:22:20,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-14 15:22:20,106 INFO L130 BoogieDeclarations]: Found specification of procedure redraw_screen [2022-12-14 15:22:20,106 INFO L138 BoogieDeclarations]: Found implementation of procedure redraw_screen [2022-12-14 15:22:20,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:22:20,106 INFO L130 BoogieDeclarations]: Found specification of procedure search_fb_in_map [2022-12-14 15:22:20,106 INFO L138 BoogieDeclarations]: Found implementation of procedure search_fb_in_map [2022-12-14 15:22:20,106 INFO L130 BoogieDeclarations]: Found specification of procedure con_set_default_unimap [2022-12-14 15:22:20,107 INFO L138 BoogieDeclarations]: Found implementation of procedure con_set_default_unimap [2022-12-14 15:22:20,107 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-12-14 15:22:20,107 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-12-14 15:22:20,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:22:20,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:22:20,107 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-12-14 15:22:20,107 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-12-14 15:22:20,678 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:22:20,681 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:22:23,233 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 15:22:46,482 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:22:48,540 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:22:48,540 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 15:22:48,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:22:48 BoogieIcfgContainer [2022-12-14 15:22:48,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:22:48,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:22:48,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:22:48,550 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:22:48,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:22:17" (1/3) ... [2022-12-14 15:22:48,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f9ef7b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:22:48, skipping insertion in model container [2022-12-14 15:22:48,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:22:19" (2/3) ... [2022-12-14 15:22:48,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f9ef7b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:22:48, skipping insertion in model container [2022-12-14 15:22:48,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:22:48" (3/3) ... [2022-12-14 15:22:48,552 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--video--console--fbcon.ko-entry_point.cil.out.i [2022-12-14 15:22:48,567 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:22:48,567 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 15:22:48,623 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:22:48,628 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;@5434150, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:22:48,628 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 15:22:48,635 INFO L276 IsEmpty]: Start isEmpty. Operand has 1472 states, 986 states have (on average 1.4219066937119675) internal successors, (1402), 1041 states have internal predecessors, (1402), 401 states have call successors, (401), 84 states have call predecessors, (401), 83 states have return successors, (396), 384 states have call predecessors, (396), 396 states have call successors, (396) [2022-12-14 15:22:48,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2022-12-14 15:22:48,662 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:22:48,663 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:22:48,664 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:22:48,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:22:48,667 INFO L85 PathProgramCache]: Analyzing trace with hash -4095199, now seen corresponding path program 1 times [2022-12-14 15:22:48,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:22:48,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080947482] [2022-12-14 15:22:48,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:22:48,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:22:49,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:22:49,669 INFO L134 CoverageAnalysis]: Checked inductivity of 4207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4207 trivial. 0 not checked. [2022-12-14 15:22:49,669 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:22:49,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080947482] [2022-12-14 15:22:49,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080947482] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:22:49,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:22:49,670 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:22:49,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885031594] [2022-12-14 15:22:49,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:22:49,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:22:49,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:22:49,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:22:49,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:22:49,704 INFO L87 Difference]: Start difference. First operand has 1472 states, 986 states have (on average 1.4219066937119675) internal successors, (1402), 1041 states have internal predecessors, (1402), 401 states have call successors, (401), 84 states have call predecessors, (401), 83 states have return successors, (396), 384 states have call predecessors, (396), 396 states have call successors, (396) Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-12-14 15:22:52,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:22:55,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:23:00,929 WARN L539 Checker$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 15:23:03,093 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 15:23:03,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:23:03,272 INFO L93 Difference]: Finished difference Result 4103 states and 6129 transitions. [2022-12-14 15:23:03,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:23:03,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 433 [2022-12-14 15:23:03,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:23:03,304 INFO L225 Difference]: With dead ends: 4103 [2022-12-14 15:23:03,305 INFO L226 Difference]: Without dead ends: 2706 [2022-12-14 15:23:03,314 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 15:23:03,317 INFO L413 NwaCegarLoop]: 2289 mSDtfsCounter, 1880 mSDsluCounter, 1908 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1886 SdHoareTripleChecker+Valid, 4197 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2022-12-14 15:23:03,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1886 Valid, 4197 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 484 Invalid, 4 Unknown, 0 Unchecked, 13.4s Time] [2022-12-14 15:23:03,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2706 states. [2022-12-14 15:23:03,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2706 to 2701. [2022-12-14 15:23:03,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2701 states, 1842 states have (on average 1.4250814332247557) internal successors, (2625), 1927 states have internal predecessors, (2625), 699 states have call successors, (699), 162 states have call predecessors, (699), 159 states have return successors, (695), 668 states have call predecessors, (695), 693 states have call successors, (695) [2022-12-14 15:23:03,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2701 states to 2701 states and 4019 transitions. [2022-12-14 15:23:03,494 INFO L78 Accepts]: Start accepts. Automaton has 2701 states and 4019 transitions. Word has length 433 [2022-12-14 15:23:03,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:23:03,496 INFO L495 AbstractCegarLoop]: Abstraction has 2701 states and 4019 transitions. [2022-12-14 15:23:03,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-12-14 15:23:03,496 INFO L276 IsEmpty]: Start isEmpty. Operand 2701 states and 4019 transitions. [2022-12-14 15:23:03,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-12-14 15:23:03,508 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:23:03,509 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:23:03,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:23:03,509 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:23:03,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:23:03,510 INFO L85 PathProgramCache]: Analyzing trace with hash 265126091, now seen corresponding path program 1 times [2022-12-14 15:23:03,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:23:03,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065267311] [2022-12-14 15:23:03,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:23:03,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:23:03,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:23:04,134 INFO L134 CoverageAnalysis]: Checked inductivity of 4207 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4207 trivial. 0 not checked. [2022-12-14 15:23:04,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:23:04,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065267311] [2022-12-14 15:23:04,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065267311] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:23:04,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:23:04,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:23:04,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687599663] [2022-12-14 15:23:04,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:23:04,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:23:04,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:23:04,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:23:04,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:23:04,137 INFO L87 Difference]: Start difference. First operand 2701 states and 4019 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-12-14 15:23:05,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:23:08,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:23:10,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:23:13,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:23:16,494 WARN L539 Checker$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 15:23:18,606 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 15:23:18,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:23:18,748 INFO L93 Difference]: Finished difference Result 5314 states and 7909 transitions. [2022-12-14 15:23:18,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:23:18,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 438 [2022-12-14 15:23:18,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:23:18,760 INFO L225 Difference]: With dead ends: 5314 [2022-12-14 15:23:18,760 INFO L226 Difference]: Without dead ends: 2702 [2022-12-14 15:23:18,767 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 15:23:18,768 INFO L413 NwaCegarLoop]: 1940 mSDtfsCounter, 0 mSDsluCounter, 1937 mSDsCounter, 0 mSdLazyCounter, 472 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3877 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 472 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2022-12-14 15:23:18,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3877 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 472 Invalid, 4 Unknown, 0 Unchecked, 14.5s Time] [2022-12-14 15:23:18,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2702 states. [2022-12-14 15:23:18,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2702 to 2702. [2022-12-14 15:23:18,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2702 states, 1843 states have (on average 1.4248507867607163) internal successors, (2626), 1928 states have internal predecessors, (2626), 699 states have call successors, (699), 162 states have call predecessors, (699), 159 states have return successors, (695), 668 states have call predecessors, (695), 693 states have call successors, (695) [2022-12-14 15:23:18,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2702 states to 2702 states and 4020 transitions. [2022-12-14 15:23:18,839 INFO L78 Accepts]: Start accepts. Automaton has 2702 states and 4020 transitions. Word has length 438 [2022-12-14 15:23:18,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:23:18,840 INFO L495 AbstractCegarLoop]: Abstraction has 2702 states and 4020 transitions. [2022-12-14 15:23:18,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-12-14 15:23:18,841 INFO L276 IsEmpty]: Start isEmpty. Operand 2702 states and 4020 transitions. [2022-12-14 15:23:18,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2022-12-14 15:23:18,849 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:23:18,849 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:18,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:23:18,849 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:23:18,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:23:18,850 INFO L85 PathProgramCache]: Analyzing trace with hash 928620606, now seen corresponding path program 1 times [2022-12-14 15:23:18,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:23:18,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074625746] [2022-12-14 15:23:18,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:23:18,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:23:19,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:23:19,516 INFO L134 CoverageAnalysis]: Checked inductivity of 4208 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4207 trivial. 0 not checked. [2022-12-14 15:23:19,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:23:19,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074625746] [2022-12-14 15:23:19,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074625746] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:23:19,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417332801] [2022-12-14 15:23:19,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:23:19,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:23:19,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:23:19,519 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:23:19,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:23:20,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:23:20,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 4785 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:23:20,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:23:21,721 INFO L134 CoverageAnalysis]: Checked inductivity of 4208 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4208 trivial. 0 not checked. [2022-12-14 15:23:21,721 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:23:21,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417332801] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:23:21,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:23:21,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-14 15:23:21,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551369664] [2022-12-14 15:23:21,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:23:21,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:23:21,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:23:21,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:23:21,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:23:21,724 INFO L87 Difference]: Start difference. First operand 2702 states and 4020 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2022-12-14 15:23:23,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:23:25,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:23:29,117 WARN L539 Checker$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 15:23:32,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:23:34,530 WARN L539 Checker$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 15:23:36,737 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 15:23:36,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:23:36,896 INFO L93 Difference]: Finished difference Result 5237 states and 7789 transitions. [2022-12-14 15:23:36,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:23:36,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) Word has length 439 [2022-12-14 15:23:36,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:23:36,916 INFO L225 Difference]: With dead ends: 5237 [2022-12-14 15:23:36,916 INFO L226 Difference]: Without dead ends: 5234 [2022-12-14 15:23:36,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:23:36,919 INFO L413 NwaCegarLoop]: 2333 mSDtfsCounter, 1879 mSDsluCounter, 1800 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1886 SdHoareTripleChecker+Valid, 4133 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:23:36,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1886 Valid, 4133 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 478 Invalid, 6 Unknown, 0 Unchecked, 15.0s Time] [2022-12-14 15:23:36,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5234 states. [2022-12-14 15:23:37,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5234 to 5227. [2022-12-14 15:23:37,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5227 states, 3592 states have (on average 1.4304008908685968) internal successors, (5138), 3753 states have internal predecessors, (5138), 1321 states have call successors, (1321), 320 states have call predecessors, (1321), 313 states have return successors, (1321), 1264 states have call predecessors, (1321), 1315 states have call successors, (1321) [2022-12-14 15:23:37,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5227 states to 5227 states and 7780 transitions. [2022-12-14 15:23:37,094 INFO L78 Accepts]: Start accepts. Automaton has 5227 states and 7780 transitions. Word has length 439 [2022-12-14 15:23:37,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:23:37,095 INFO L495 AbstractCegarLoop]: Abstraction has 5227 states and 7780 transitions. [2022-12-14 15:23:37,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2022-12-14 15:23:37,095 INFO L276 IsEmpty]: Start isEmpty. Operand 5227 states and 7780 transitions. [2022-12-14 15:23:37,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2022-12-14 15:23:37,101 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:23:37,102 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:37,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:23:37,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:23:37,302 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:23:37,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:23:37,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1278068502, now seen corresponding path program 1 times [2022-12-14 15:23:37,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:23:37,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678138880] [2022-12-14 15:23:37,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:23:37,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:23:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:23:37,906 INFO L134 CoverageAnalysis]: Checked inductivity of 4208 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4207 trivial. 0 not checked. [2022-12-14 15:23:37,906 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:23:37,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678138880] [2022-12-14 15:23:37,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678138880] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:23:37,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762661788] [2022-12-14 15:23:37,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:23:37,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:23:37,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:23:37,908 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:23:37,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 15:23:39,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:23:39,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 4787 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:23:39,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:23:40,020 INFO L134 CoverageAnalysis]: Checked inductivity of 4208 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4208 trivial. 0 not checked. [2022-12-14 15:23:40,020 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:23:40,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762661788] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:23:40,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:23:40,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-14 15:23:40,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407896820] [2022-12-14 15:23:40,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:23:40,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:23:40,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:23:40,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:23:40,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:23:40,023 INFO L87 Difference]: Start difference. First operand 5227 states and 7780 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2022-12-14 15:23:42,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:23:44,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:23:45,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:23:48,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:23:51,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:23:53,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:23:56,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:23:58,082 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 15:23:58,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:23:58,240 INFO L93 Difference]: Finished difference Result 5274 states and 7827 transitions. [2022-12-14 15:23:58,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:23:58,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) Word has length 440 [2022-12-14 15:23:58,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:23:58,257 INFO L225 Difference]: With dead ends: 5274 [2022-12-14 15:23:58,257 INFO L226 Difference]: Without dead ends: 5271 [2022-12-14 15:23:58,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:23:58,259 INFO L413 NwaCegarLoop]: 2348 mSDtfsCounter, 1908 mSDsluCounter, 1803 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1912 SdHoareTripleChecker+Valid, 4151 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:23:58,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1912 Valid, 4151 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 481 Invalid, 4 Unknown, 0 Unchecked, 18.1s Time] [2022-12-14 15:23:58,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5271 states. [2022-12-14 15:23:58,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5271 to 5266. [2022-12-14 15:23:58,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5266 states, 3614 states have (on average 1.4288876591034865) internal successors, (5164), 3777 states have internal predecessors, (5164), 1328 states have call successors, (1328), 329 states have call predecessors, (1328), 323 states have return successors, (1328), 1271 states have call predecessors, (1328), 1322 states have call successors, (1328) [2022-12-14 15:23:58,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5266 states to 5266 states and 7820 transitions. [2022-12-14 15:23:58,395 INFO L78 Accepts]: Start accepts. Automaton has 5266 states and 7820 transitions. Word has length 440 [2022-12-14 15:23:58,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:23:58,396 INFO L495 AbstractCegarLoop]: Abstraction has 5266 states and 7820 transitions. [2022-12-14 15:23:58,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2022-12-14 15:23:58,396 INFO L276 IsEmpty]: Start isEmpty. Operand 5266 states and 7820 transitions. [2022-12-14 15:23:58,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2022-12-14 15:23:58,404 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:23:58,404 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:58,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 15:23:58,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:23:58,605 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:23:58,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:23:58,606 INFO L85 PathProgramCache]: Analyzing trace with hash -965949247, now seen corresponding path program 1 times [2022-12-14 15:23:58,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:23:58,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932775881] [2022-12-14 15:23:58,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:23:58,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:23:58,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:23:59,156 INFO L134 CoverageAnalysis]: Checked inductivity of 4208 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4207 trivial. 0 not checked. [2022-12-14 15:23:59,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:23:59,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932775881] [2022-12-14 15:23:59,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932775881] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:23:59,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852947063] [2022-12-14 15:23:59,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:23:59,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:23:59,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:23:59,158 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:23:59,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 15:24:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:00,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 4789 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:24:00,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:24:01,068 INFO L134 CoverageAnalysis]: Checked inductivity of 4208 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4208 trivial. 0 not checked. [2022-12-14 15:24:01,068 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:24:01,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852947063] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:24:01,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:24:01,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-14 15:24:01,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538077439] [2022-12-14 15:24:01,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:24:01,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:24:01,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:24:01,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:24:01,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:24:01,071 INFO L87 Difference]: Start difference. First operand 5266 states and 7820 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2022-12-14 15:24:03,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:24:05,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:24:08,539 WARN L539 Checker$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 15:24:12,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:24:14,240 WARN L539 Checker$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 15:24:16,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:24:17,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:24:17,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:24:17,429 INFO L93 Difference]: Finished difference Result 12973 states and 19289 transitions. [2022-12-14 15:24:17,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:24:17,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) Word has length 441 [2022-12-14 15:24:17,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:24:17,461 INFO L225 Difference]: With dead ends: 12973 [2022-12-14 15:24:17,461 INFO L226 Difference]: Without dead ends: 7796 [2022-12-14 15:24:17,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:24:17,479 INFO L413 NwaCegarLoop]: 2348 mSDtfsCounter, 1905 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 3 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1910 SdHoareTripleChecker+Valid, 4149 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2022-12-14 15:24:17,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1910 Valid, 4149 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 480 Invalid, 5 Unknown, 0 Unchecked, 16.2s Time] [2022-12-14 15:24:17,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7796 states. [2022-12-14 15:24:17,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7796 to 7778. [2022-12-14 15:24:17,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7778 states, 5358 states have (on average 1.4320642030608437) internal successors, (7673), 5598 states have internal predecessors, (7673), 1950 states have call successors, (1950), 480 states have call predecessors, (1950), 469 states have return successors, (1951), 1866 states have call predecessors, (1951), 1943 states have call successors, (1951) [2022-12-14 15:24:17,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7778 states to 7778 states and 11574 transitions. [2022-12-14 15:24:17,702 INFO L78 Accepts]: Start accepts. Automaton has 7778 states and 11574 transitions. Word has length 441 [2022-12-14 15:24:17,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:24:17,703 INFO L495 AbstractCegarLoop]: Abstraction has 7778 states and 11574 transitions. [2022-12-14 15:24:17,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2022-12-14 15:24:17,703 INFO L276 IsEmpty]: Start isEmpty. Operand 7778 states and 11574 transitions. [2022-12-14 15:24:17,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2022-12-14 15:24:17,709 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:24:17,709 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:24:17,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 15:24:17,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:24:17,911 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:24:17,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:24:17,911 INFO L85 PathProgramCache]: Analyzing trace with hash 119817933, now seen corresponding path program 1 times [2022-12-14 15:24:17,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:24:17,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805306043] [2022-12-14 15:24:17,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:17,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:24:18,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:18,403 INFO L134 CoverageAnalysis]: Checked inductivity of 4208 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4207 trivial. 0 not checked. [2022-12-14 15:24:18,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:24:18,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805306043] [2022-12-14 15:24:18,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805306043] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:24:18,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81668486] [2022-12-14 15:24:18,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:18,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:24:18,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:24:18,405 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:24:18,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 15:24:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:19,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 4791 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:24:19,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:24:20,301 INFO L134 CoverageAnalysis]: Checked inductivity of 4208 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4208 trivial. 0 not checked. [2022-12-14 15:24:20,301 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:24:20,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81668486] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:24:20,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:24:20,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-14 15:24:20,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437271749] [2022-12-14 15:24:20,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:24:20,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:24:20,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:24:20,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:24:20,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:24:20,303 INFO L87 Difference]: Start difference. First operand 7778 states and 11574 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2022-12-14 15:24:21,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:24:23,457 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:24:25,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:24:27,869 WARN L539 Checker$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 15:24:31,751 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:24:34,096 WARN L539 Checker$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 15:24:34,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:24:34,332 INFO L93 Difference]: Finished difference Result 7791 states and 11586 transitions. [2022-12-14 15:24:34,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:24:34,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) Word has length 442 [2022-12-14 15:24:34,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:24:34,360 INFO L225 Difference]: With dead ends: 7791 [2022-12-14 15:24:34,360 INFO L226 Difference]: Without dead ends: 7788 [2022-12-14 15:24:34,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 442 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:24:34,363 INFO L413 NwaCegarLoop]: 2339 mSDtfsCounter, 1863 mSDsluCounter, 1809 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1870 SdHoareTripleChecker+Valid, 4148 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-12-14 15:24:34,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1870 Valid, 4148 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 477 Invalid, 5 Unknown, 0 Unchecked, 13.8s Time] [2022-12-14 15:24:34,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7788 states. [2022-12-14 15:24:34,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7788 to 7780. [2022-12-14 15:24:34,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7780 states, 5360 states have (on average 1.4319029850746268) internal successors, (7675), 5600 states have internal predecessors, (7675), 1950 states have call successors, (1950), 480 states have call predecessors, (1950), 469 states have return successors, (1951), 1866 states have call predecessors, (1951), 1943 states have call successors, (1951) [2022-12-14 15:24:34,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7780 states to 7780 states and 11576 transitions. [2022-12-14 15:24:34,614 INFO L78 Accepts]: Start accepts. Automaton has 7780 states and 11576 transitions. Word has length 442 [2022-12-14 15:24:34,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:24:34,614 INFO L495 AbstractCegarLoop]: Abstraction has 7780 states and 11576 transitions. [2022-12-14 15:24:34,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2022-12-14 15:24:34,615 INFO L276 IsEmpty]: Start isEmpty. Operand 7780 states and 11576 transitions. [2022-12-14 15:24:34,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2022-12-14 15:24:34,620 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:24:34,620 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:24:34,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 15:24:34,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:24:34,821 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:24:34,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:24:34,822 INFO L85 PathProgramCache]: Analyzing trace with hash -581132988, now seen corresponding path program 1 times [2022-12-14 15:24:34,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:24:34,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103113358] [2022-12-14 15:24:34,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:34,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:24:35,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:35,419 INFO L134 CoverageAnalysis]: Checked inductivity of 4208 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4207 trivial. 0 not checked. [2022-12-14 15:24:35,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:24:35,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103113358] [2022-12-14 15:24:35,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103113358] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:24:35,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625222805] [2022-12-14 15:24:35,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:35,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:24:35,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:24:35,420 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:24:35,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 15:24:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:36,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 4793 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:24:36,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:24:37,372 INFO L134 CoverageAnalysis]: Checked inductivity of 4208 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4208 trivial. 0 not checked. [2022-12-14 15:24:37,372 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:24:37,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625222805] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:24:37,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:24:37,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-14 15:24:37,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59335698] [2022-12-14 15:24:37,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:24:37,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:24:37,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:24:37,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:24:37,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:24:37,374 INFO L87 Difference]: Start difference. First operand 7780 states and 11576 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2022-12-14 15:24:39,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:24:41,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:24:44,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:24:48,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:24:50,665 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:24:52,777 WARN L539 Checker$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 15:24:52,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:24:52,981 INFO L93 Difference]: Finished difference Result 7792 states and 11586 transitions. [2022-12-14 15:24:52,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:24:52,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) Word has length 443 [2022-12-14 15:24:52,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:24:53,004 INFO L225 Difference]: With dead ends: 7792 [2022-12-14 15:24:53,004 INFO L226 Difference]: Without dead ends: 7767 [2022-12-14 15:24:53,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:24:53,009 INFO L413 NwaCegarLoop]: 2342 mSDtfsCounter, 1893 mSDsluCounter, 1812 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1897 SdHoareTripleChecker+Valid, 4154 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-12-14 15:24:53,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1897 Valid, 4154 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 479 Invalid, 5 Unknown, 0 Unchecked, 15.4s Time] [2022-12-14 15:24:53,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7767 states. [2022-12-14 15:24:53,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7767 to 7759. [2022-12-14 15:24:53,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7759 states, 5346 states have (on average 1.4320987654320987) internal successors, (7656), 5586 states have internal predecessors, (7656), 1945 states have call successors, (1945), 478 states have call predecessors, (1945), 467 states have return successors, (1946), 1861 states have call predecessors, (1946), 1938 states have call successors, (1946) [2022-12-14 15:24:53,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7759 states to 7759 states and 11547 transitions. [2022-12-14 15:24:53,240 INFO L78 Accepts]: Start accepts. Automaton has 7759 states and 11547 transitions. Word has length 443 [2022-12-14 15:24:53,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:24:53,241 INFO L495 AbstractCegarLoop]: Abstraction has 7759 states and 11547 transitions. [2022-12-14 15:24:53,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 2 states have internal predecessors, (83), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (49), 1 states have call predecessors, (49), 1 states have call successors, (49) [2022-12-14 15:24:53,241 INFO L276 IsEmpty]: Start isEmpty. Operand 7759 states and 11547 transitions. [2022-12-14 15:24:53,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2022-12-14 15:24:53,247 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:24:53,247 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:24:53,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 15:24:53,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:24:53,448 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:24:53,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:24:53,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1845858483, now seen corresponding path program 1 times [2022-12-14 15:24:53,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:24:53,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511252704] [2022-12-14 15:24:53,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:53,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:24:53,614 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:24:53,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [468426818] [2022-12-14 15:24:53,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:24:53,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:24:53,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:24:53,616 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:24:53,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 15:24:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:24:55,071 INFO L263 TraceCheckSpWp]: Trace formula consists of 5570 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 15:24:55,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:24:55,106 INFO L134 CoverageAnalysis]: Checked inductivity of 4209 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4207 trivial. 0 not checked. [2022-12-14 15:24:55,107 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:24:55,107 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:24:55,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511252704] [2022-12-14 15:24:55,107 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:24:55,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468426818] [2022-12-14 15:24:55,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468426818] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:24:55,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:24:55,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:24:55,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903654824] [2022-12-14 15:24:55,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:24:55,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:24:55,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:24:55,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:24:55,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:24:55,109 INFO L87 Difference]: Start difference. First operand 7759 states and 11547 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-12-14 15:24:57,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:24:59,452 WARN L539 Checker$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 15:25:01,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:25:03,845 WARN L539 Checker$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 15:25:06,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:25:08,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:25:10,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:25:10,159 INFO L93 Difference]: Finished difference Result 19524 states and 28956 transitions. [2022-12-14 15:25:10,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:25:10,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 446 [2022-12-14 15:25:10,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:25:10,197 INFO L225 Difference]: With dead ends: 19524 [2022-12-14 15:25:10,197 INFO L226 Difference]: Without dead ends: 11854 [2022-12-14 15:25:10,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 444 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 15:25:10,219 INFO L413 NwaCegarLoop]: 2135 mSDtfsCounter, 1037 mSDsluCounter, 1875 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 24 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 4010 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2022-12-14 15:25:10,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1043 Valid, 4010 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 563 Invalid, 6 Unknown, 0 Unchecked, 14.8s Time] [2022-12-14 15:25:10,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11854 states. [2022-12-14 15:25:10,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11854 to 11809. [2022-12-14 15:25:10,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11809 states, 8227 states have (on average 1.4332077306430047) internal successors, (11791), 8577 states have internal predecessors, (11791), 2777 states have call successors, (2777), 827 states have call predecessors, (2777), 804 states have return successors, (2790), 2655 states have call predecessors, (2790), 2770 states have call successors, (2790) [2022-12-14 15:25:10,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11809 states to 11809 states and 17358 transitions. [2022-12-14 15:25:10,553 INFO L78 Accepts]: Start accepts. Automaton has 11809 states and 17358 transitions. Word has length 446 [2022-12-14 15:25:10,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:25:10,554 INFO L495 AbstractCegarLoop]: Abstraction has 11809 states and 17358 transitions. [2022-12-14 15:25:10,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (51), 2 states have call predecessors, (51), 2 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-12-14 15:25:10,554 INFO L276 IsEmpty]: Start isEmpty. Operand 11809 states and 17358 transitions. [2022-12-14 15:25:10,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2022-12-14 15:25:10,562 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:25:10,563 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:25:10,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 15:25:10,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:25:10,764 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:25:10,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:25:10,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1686213375, now seen corresponding path program 1 times [2022-12-14 15:25:10,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:25:10,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078379186] [2022-12-14 15:25:10,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:25:10,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:25:10,963 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:25:10,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [786221389] [2022-12-14 15:25:10,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:25:10,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:25:10,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:25:10,964 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:25:10,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 15:25:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:25:12,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 5855 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:25:12,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:25:13,378 INFO L134 CoverageAnalysis]: Checked inductivity of 4392 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4392 trivial. 0 not checked. [2022-12-14 15:25:13,379 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:25:13,379 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:25:13,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078379186] [2022-12-14 15:25:13,379 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:25:13,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786221389] [2022-12-14 15:25:13,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786221389] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:25:13,379 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:25:13,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:25:13,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526346342] [2022-12-14 15:25:13,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:25:13,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:25:13,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:25:13,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:25:13,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:25:13,382 INFO L87 Difference]: Start difference. First operand 11809 states and 17358 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2022-12-14 15:25:15,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:25:17,712 WARN L539 Checker$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 15:25:19,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:25:21,821 WARN L539 Checker$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 15:25:23,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:25:25,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:25:27,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:25:28,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:25:28,703 INFO L93 Difference]: Finished difference Result 12073 states and 17699 transitions. [2022-12-14 15:25:28,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:25:28,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 502 [2022-12-14 15:25:28,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:25:28,733 INFO L225 Difference]: With dead ends: 12073 [2022-12-14 15:25:28,734 INFO L226 Difference]: Without dead ends: 12070 [2022-12-14 15:25:28,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 500 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 15:25:28,738 INFO L413 NwaCegarLoop]: 2046 mSDtfsCounter, 1901 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1906 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2022-12-14 15:25:28,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1906 Valid, 2385 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 296 Invalid, 5 Unknown, 0 Unchecked, 15.1s Time] [2022-12-14 15:25:28,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12070 states. [2022-12-14 15:25:29,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12070 to 12064. [2022-12-14 15:25:29,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12064 states, 8396 states have (on average 1.4308003811338732) internal successors, (12013), 8749 states have internal predecessors, (12013), 2831 states have call successors, (2831), 861 states have call predecessors, (2831), 836 states have return successors, (2845), 2707 states have call predecessors, (2845), 2825 states have call successors, (2845) [2022-12-14 15:25:29,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12064 states to 12064 states and 17689 transitions. [2022-12-14 15:25:29,114 INFO L78 Accepts]: Start accepts. Automaton has 12064 states and 17689 transitions. Word has length 502 [2022-12-14 15:25:29,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:25:29,115 INFO L495 AbstractCegarLoop]: Abstraction has 12064 states and 17689 transitions. [2022-12-14 15:25:29,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2022-12-14 15:25:29,115 INFO L276 IsEmpty]: Start isEmpty. Operand 12064 states and 17689 transitions. [2022-12-14 15:25:29,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2022-12-14 15:25:29,125 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:25:29,125 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:25:29,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 15:25:29,326 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-12-14 15:25:29,326 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:25:29,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:25:29,326 INFO L85 PathProgramCache]: Analyzing trace with hash -733543289, now seen corresponding path program 1 times [2022-12-14 15:25:29,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:25:29,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108444780] [2022-12-14 15:25:29,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:25:29,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:25:29,560 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:25:29,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1945733854] [2022-12-14 15:25:29,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:25:29,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:25:29,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:25:29,561 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:25:29,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-14 15:25:31,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:25:31,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 5857 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:25:31,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:25:31,990 INFO L134 CoverageAnalysis]: Checked inductivity of 4392 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4392 trivial. 0 not checked. [2022-12-14 15:25:31,990 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:25:31,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:25:31,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108444780] [2022-12-14 15:25:31,991 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:25:31,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945733854] [2022-12-14 15:25:31,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945733854] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:25:31,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:25:31,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:25:31,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773453329] [2022-12-14 15:25:31,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:25:31,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:25:31,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:25:31,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:25:31,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:25:31,993 INFO L87 Difference]: Start difference. First operand 12064 states and 17689 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2022-12-14 15:25:33,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:25:36,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:25:38,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:25:40,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:25:43,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:25:44,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:25:44,736 INFO L93 Difference]: Finished difference Result 12072 states and 17696 transitions. [2022-12-14 15:25:44,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:25:44,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 503 [2022-12-14 15:25:44,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:25:44,768 INFO L225 Difference]: With dead ends: 12072 [2022-12-14 15:25:44,768 INFO L226 Difference]: Without dead ends: 12069 [2022-12-14 15:25:44,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 501 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 15:25:44,774 INFO L413 NwaCegarLoop]: 2044 mSDtfsCounter, 1898 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1903 SdHoareTripleChecker+Valid, 2383 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-12-14 15:25:44,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1903 Valid, 2383 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 296 Invalid, 4 Unknown, 0 Unchecked, 12.4s Time] [2022-12-14 15:25:44,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12069 states. [2022-12-14 15:25:45,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12069 to 12063. [2022-12-14 15:25:45,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12063 states, 8396 states have (on average 1.4305621724630777) internal successors, (12011), 8748 states have internal predecessors, (12011), 2830 states have call successors, (2830), 861 states have call predecessors, (2830), 836 states have return successors, (2845), 2707 states have call predecessors, (2845), 2825 states have call successors, (2845) [2022-12-14 15:25:45,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12063 states to 12063 states and 17686 transitions. [2022-12-14 15:25:45,176 INFO L78 Accepts]: Start accepts. Automaton has 12063 states and 17686 transitions. Word has length 503 [2022-12-14 15:25:45,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:25:45,177 INFO L495 AbstractCegarLoop]: Abstraction has 12063 states and 17686 transitions. [2022-12-14 15:25:45,177 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 2 states have internal predecessors, (103), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2022-12-14 15:25:45,177 INFO L276 IsEmpty]: Start isEmpty. Operand 12063 states and 17686 transitions. [2022-12-14 15:25:45,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2022-12-14 15:25:45,187 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:25:45,187 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:25:45,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-14 15:25:45,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:25:45,388 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:25:45,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:25:45,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1265536828, now seen corresponding path program 1 times [2022-12-14 15:25:45,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:25:45,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130928170] [2022-12-14 15:25:45,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:25:45,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:25:45,595 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:25:45,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1309286067] [2022-12-14 15:25:45,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:25:45,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:25:45,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:25:45,597 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:25:45,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-14 15:25:47,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:25:47,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 5859 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:25:47,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:25:48,062 INFO L134 CoverageAnalysis]: Checked inductivity of 4392 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4392 trivial. 0 not checked. [2022-12-14 15:25:48,063 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:25:48,063 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:25:48,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130928170] [2022-12-14 15:25:48,063 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:25:48,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309286067] [2022-12-14 15:25:48,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309286067] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:25:48,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:25:48,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:25:48,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113741623] [2022-12-14 15:25:48,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:25:48,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:25:48,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:25:48,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:25:48,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:25:48,065 INFO L87 Difference]: Start difference. First operand 12063 states and 17686 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2022-12-14 15:25:49,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:25:51,974 WARN L539 Checker$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 15:25:54,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:25:56,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:25:59,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:26:01,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:26:01,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:26:01,821 INFO L93 Difference]: Finished difference Result 16309 states and 23874 transitions. [2022-12-14 15:26:01,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:26:01,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 504 [2022-12-14 15:26:01,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:26:01,847 INFO L225 Difference]: With dead ends: 16309 [2022-12-14 15:26:01,847 INFO L226 Difference]: Without dead ends: 8182 [2022-12-14 15:26:01,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 503 GetRequests, 502 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 15:26:01,870 INFO L413 NwaCegarLoop]: 2037 mSDtfsCounter, 1858 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1865 SdHoareTripleChecker+Valid, 2404 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-12-14 15:26:01,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1865 Valid, 2404 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 301 Invalid, 5 Unknown, 0 Unchecked, 13.5s Time] [2022-12-14 15:26:01,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8182 states. [2022-12-14 15:26:02,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8182 to 8170. [2022-12-14 15:26:02,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8170 states, 5673 states have (on average 1.4274634232328574) internal successors, (8098), 5911 states have internal predecessors, (8098), 1919 states have call successors, (1919), 593 states have call predecessors, (1919), 577 states have return successors, (1931), 1836 states have call predecessors, (1931), 1915 states have call successors, (1931) [2022-12-14 15:26:02,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8170 states to 8170 states and 11948 transitions. [2022-12-14 15:26:02,150 INFO L78 Accepts]: Start accepts. Automaton has 8170 states and 11948 transitions. Word has length 504 [2022-12-14 15:26:02,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:26:02,151 INFO L495 AbstractCegarLoop]: Abstraction has 8170 states and 11948 transitions. [2022-12-14 15:26:02,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2022-12-14 15:26:02,151 INFO L276 IsEmpty]: Start isEmpty. Operand 8170 states and 11948 transitions. [2022-12-14 15:26:02,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2022-12-14 15:26:02,165 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:26:02,166 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:26:02,183 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-14 15:26:02,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:26:02,368 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:26:02,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:26:02,369 INFO L85 PathProgramCache]: Analyzing trace with hash -577462486, now seen corresponding path program 1 times [2022-12-14 15:26:02,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:26:02,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175453219] [2022-12-14 15:26:02,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:26:02,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:26:02,574 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:26:02,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [934160949] [2022-12-14 15:26:02,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:26:02,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:26:02,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:26:02,575 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:26:02,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-14 15:26:03,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:26:04,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 5861 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:26:04,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:26:05,043 INFO L134 CoverageAnalysis]: Checked inductivity of 4392 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4392 trivial. 0 not checked. [2022-12-14 15:26:05,043 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:26:05,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:26:05,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175453219] [2022-12-14 15:26:05,044 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:26:05,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934160949] [2022-12-14 15:26:05,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934160949] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:26:05,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:26:05,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:26:05,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090031991] [2022-12-14 15:26:05,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:26:05,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:26:05,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:26:05,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:26:05,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:26:05,047 INFO L87 Difference]: Start difference. First operand 8170 states and 11948 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2022-12-14 15:26:07,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:26:09,376 WARN L539 Checker$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 15:26:11,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:26:13,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:26:15,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:26:18,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:26:19,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:26:19,227 INFO L93 Difference]: Finished difference Result 8178 states and 11955 transitions. [2022-12-14 15:26:19,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:26:19,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 505 [2022-12-14 15:26:19,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:26:19,247 INFO L225 Difference]: With dead ends: 8178 [2022-12-14 15:26:19,247 INFO L226 Difference]: Without dead ends: 8175 [2022-12-14 15:26:19,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 503 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 15:26:19,251 INFO L413 NwaCegarLoop]: 2036 mSDtfsCounter, 1885 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1890 SdHoareTripleChecker+Valid, 2375 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:26:19,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1890 Valid, 2375 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 294 Invalid, 4 Unknown, 0 Unchecked, 14.0s Time] [2022-12-14 15:26:19,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8175 states. [2022-12-14 15:26:19,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8175 to 8169. [2022-12-14 15:26:19,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8169 states, 5673 states have (on average 1.4272871496562665) internal successors, (8097), 5910 states have internal predecessors, (8097), 1918 states have call successors, (1918), 593 states have call predecessors, (1918), 577 states have return successors, (1931), 1836 states have call predecessors, (1931), 1915 states have call successors, (1931) [2022-12-14 15:26:19,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8169 states to 8169 states and 11946 transitions. [2022-12-14 15:26:19,497 INFO L78 Accepts]: Start accepts. Automaton has 8169 states and 11946 transitions. Word has length 505 [2022-12-14 15:26:19,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:26:19,497 INFO L495 AbstractCegarLoop]: Abstraction has 8169 states and 11946 transitions. [2022-12-14 15:26:19,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2022-12-14 15:26:19,497 INFO L276 IsEmpty]: Start isEmpty. Operand 8169 states and 11946 transitions. [2022-12-14 15:26:19,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 507 [2022-12-14 15:26:19,506 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:26:19,506 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:26:19,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-12-14 15:26:19,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-14 15:26:19,708 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:26:19,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:26:19,709 INFO L85 PathProgramCache]: Analyzing trace with hash -721989497, now seen corresponding path program 1 times [2022-12-14 15:26:19,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:26:19,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991704708] [2022-12-14 15:26:19,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:26:19,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:26:19,920 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:26:19,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [110473909] [2022-12-14 15:26:19,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:26:19,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:26:19,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:26:19,921 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:26:19,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-14 15:26:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:26:21,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 5863 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:26:21,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:26:22,757 INFO L134 CoverageAnalysis]: Checked inductivity of 4392 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4392 trivial. 0 not checked. [2022-12-14 15:26:22,758 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:26:22,758 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:26:22,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991704708] [2022-12-14 15:26:22,758 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:26:22,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110473909] [2022-12-14 15:26:22,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110473909] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:26:22,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:26:22,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:26:22,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190018888] [2022-12-14 15:26:22,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:26:22,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:26:22,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:26:22,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:26:22,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:26:22,760 INFO L87 Difference]: Start difference. First operand 8169 states and 11946 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2022-12-14 15:26:24,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:26:27,040 WARN L539 Checker$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 15:26:29,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:26:31,394 WARN L539 Checker$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 15:26:33,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:26:36,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 15:26:38,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:26:39,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:26:39,556 INFO L93 Difference]: Finished difference Result 8177 states and 11953 transitions. [2022-12-14 15:26:39,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:26:39,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) Word has length 506 [2022-12-14 15:26:39,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:26:39,580 INFO L225 Difference]: With dead ends: 8177 [2022-12-14 15:26:39,580 INFO L226 Difference]: Without dead ends: 8109 [2022-12-14 15:26:39,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 504 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 15:26:39,584 INFO L413 NwaCegarLoop]: 2035 mSDtfsCounter, 1882 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1887 SdHoareTripleChecker+Valid, 2374 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2022-12-14 15:26:39,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1887 Valid, 2374 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 5 Unknown, 0 Unchecked, 16.6s Time] [2022-12-14 15:26:39,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8109 states. [2022-12-14 15:26:39,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8109 to 8103. [2022-12-14 15:26:39,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8103 states, 5630 states have (on average 1.42753108348135) internal successors, (8037), 5865 states have internal predecessors, (8037), 1900 states have call successors, (1900), 588 states have call predecessors, (1900), 572 states have return successors, (1914), 1820 states have call predecessors, (1914), 1898 states have call successors, (1914) [2022-12-14 15:26:39,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8103 states to 8103 states and 11851 transitions. [2022-12-14 15:26:39,861 INFO L78 Accepts]: Start accepts. Automaton has 8103 states and 11851 transitions. Word has length 506 [2022-12-14 15:26:39,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:26:39,861 INFO L495 AbstractCegarLoop]: Abstraction has 8103 states and 11851 transitions. [2022-12-14 15:26:39,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 2 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (56), 1 states have call predecessors, (56), 1 states have call successors, (56) [2022-12-14 15:26:39,861 INFO L276 IsEmpty]: Start isEmpty. Operand 8103 states and 11851 transitions. [2022-12-14 15:26:39,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2022-12-14 15:26:39,871 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:26:39,871 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:26:39,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-14 15:26:40,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-14 15:26:40,073 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 15:26:40,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:26:40,074 INFO L85 PathProgramCache]: Analyzing trace with hash 462692887, now seen corresponding path program 1 times [2022-12-14 15:26:40,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:26:40,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929199896] [2022-12-14 15:26:40,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:26:40,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:26:40,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:26:40,950 INFO L134 CoverageAnalysis]: Checked inductivity of 4382 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 4379 trivial. 0 not checked. [2022-12-14 15:26:40,950 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:26:40,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929199896] [2022-12-14 15:26:40,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929199896] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 15:26:40,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271546526] [2022-12-14 15:26:40,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:26:40,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:26:40,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:26:40,952 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:26:40,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a7a475a-5ce0-4b1f-9b56-61a245408e01/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-14 15:26:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:26:42,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 5363 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 15:26:42,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:26:42,692 INFO L134 CoverageAnalysis]: Checked inductivity of 4382 backedges. 162 proven. 1 refuted. 0 times theorem prover too weak. 4219 trivial. 0 not checked. [2022-12-14 15:26:42,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:26:43,017 INFO L134 CoverageAnalysis]: Checked inductivity of 4382 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 4379 trivial. 0 not checked. [2022-12-14 15:26:43,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271546526] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:26:43,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1689618584] [2022-12-14 15:26:43,043 INFO L159 IcfgInterpreter]: Started Sifa with 185 locations of interest [2022-12-14 15:26:43,043 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:26:43,047 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:26:43,052 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:26:43,052 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:26:46,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:46,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:46,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:46,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:46,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:47,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:47,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:47,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:47,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:47,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:47,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:47,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:48,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:48,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:48,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:48,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:48,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:48,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:48,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:48,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:48,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:48,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:48,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:49,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:49,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:49,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:49,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:49,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:49,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:49,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:49,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:49,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:49,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:49,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:26:49,259 INFO L217 Elim1Store]: Index analysis took 3047 ms [2022-12-14 15:33:33,222 WARN L233 SmtUtils]: Spent 6.73m on a formula simplification. DAG size of input: 7551 DAG size of output: 1975 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 15:33:33,229 INFO L321 Elim1Store]: treesize reduction 88578, result has 4.1 percent of original size [2022-12-14 15:33:33,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 62 select indices, 62 select index equivalence classes, 446 disjoint index pairs (out of 1891 index pairs), introduced 62 new quantified variables, introduced 1537 case distinctions, treesize of input 2660 treesize of output 6277 [2022-12-14 15:33:43,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:43,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:43,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:43,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:43,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:43,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:43,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:43,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:43,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:43,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:43,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:43,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:43,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:43,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:43,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:43,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:43,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:43,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:43,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:43,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:43,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:43,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:43,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:43,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:43,267 INFO L217 Elim1Store]: Index analysis took 188 ms [2022-12-14 15:33:43,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 45 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 133 [2022-12-14 15:33:44,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:33:44,330 INFO L217 Elim1Store]: Index analysis took 258 ms [2022-12-14 15:33:44,356 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 27 select indices, 27 select index equivalence classes, 1864 disjoint index pairs (out of 351 index pairs), introduced 27 new quantified variables, introduced 0 case distinctions, treesize of input 241 treesize of output 387 [2022-12-14 15:33:45,178 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 15:33:45,404 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 15:34:29,748 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 15:34:29,753 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 15:34:29,761 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 15:34:45,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:45,465 INFO L217 Elim1Store]: Index analysis took 240 ms [2022-12-14 15:34:45,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 61 select indices, 61 select index equivalence classes, 1864 disjoint index pairs (out of 1830 index pairs), introduced 61 new quantified variables, introduced 0 case distinctions, treesize of input 306 treesize of output 184 [2022-12-14 15:34:46,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:47,199 INFO L217 Elim1Store]: Index analysis took 207 ms [2022-12-14 15:34:47,209 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 62 select indices, 62 select index equivalence classes, 1891 disjoint index pairs (out of 1891 index pairs), introduced 62 new quantified variables, introduced 0 case distinctions, treesize of input 311 treesize of output 187 [2022-12-14 15:34:49,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:49,497 INFO L217 Elim1Store]: Index analysis took 205 ms [2022-12-14 15:34:49,505 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 78 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 443 treesize of output 333 [2022-12-14 15:34:49,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 30 select indices, 30 select index equivalence classes, 435 disjoint index pairs (out of 435 index pairs), introduced 30 new quantified variables, introduced 0 case distinctions, treesize of input 211 treesize of output 91 [2022-12-14 15:34:50,183 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 treesize of output 3 [2022-12-14 15:34:50,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:34:50,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2022-12-14 15:35:53,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:53,327 INFO L217 Elim1Store]: Index analysis took 181 ms [2022-12-14 15:35:53,336 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 61 select indices, 61 select index equivalence classes, 1864 disjoint index pairs (out of 1830 index pairs), introduced 61 new quantified variables, introduced 0 case distinctions, treesize of input 306 treesize of output 184 [2022-12-14 15:35:56,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,222 INFO L217 Elim1Store]: Index analysis took 205 ms [2022-12-14 15:35:56,233 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 62 select indices, 62 select index equivalence classes, 1891 disjoint index pairs (out of 1891 index pairs), introduced 62 new quantified variables, introduced 0 case distinctions, treesize of input 311 treesize of output 187 [2022-12-14 15:35:56,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:56,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:57,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:57,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:57,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:57,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:57,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:57,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:57,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:57,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:57,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:57,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:57,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:57,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:57,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:57,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:57,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:57,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:57,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:57,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:57,107 INFO L217 Elim1Store]: Index analysis took 201 ms [2022-12-14 15:35:57,115 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 78 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 443 treesize of output 333 [2022-12-14 15:35:57,360 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 7 treesize of output 3 [2022-12-14 15:35:57,678 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 30 select indices, 30 select index equivalence classes, 435 disjoint index pairs (out of 435 index pairs), introduced 30 new quantified variables, introduced 0 case distinctions, treesize of input 211 treesize of output 91 [2022-12-14 15:35:58,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:35:58,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7