./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-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64229f4-c8a8-4361-9660-a95429b8496e/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64229f4-c8a8-4361-9660-a95429b8496e/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_a64229f4-c8a8-4361-9660-a95429b8496e/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64229f4-c8a8-4361-9660-a95429b8496e/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64229f4-c8a8-4361-9660-a95429b8496e/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_a64229f4-c8a8-4361-9660-a95429b8496e/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 234112184b071eb42f340136dfce6e1a552d788d086baea007a05a3140f2d157 --- 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 08:37:37,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:37:37,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:37:37,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:37:37,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:37:37,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:37:37,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:37:37,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:37:37,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:37:37,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:37:37,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:37:37,275 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:37:37,275 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:37:37,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:37:37,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:37:37,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:37:37,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:37:37,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:37:37,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:37:37,283 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:37:37,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:37:37,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:37:37,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:37:37,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:37:37,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:37:37,291 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:37:37,291 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:37:37,292 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:37:37,292 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:37:37,293 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:37:37,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:37:37,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:37:37,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:37:37,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:37:37,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:37:37,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:37:37,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:37:37,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:37:37,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:37:37,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:37:37,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:37:37,299 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64229f4-c8a8-4361-9660-a95429b8496e/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 08:37:37,327 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:37:37,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:37:37,328 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:37:37,328 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:37:37,328 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:37:37,329 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:37:37,329 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:37:37,329 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:37:37,329 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:37:37,329 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:37:37,330 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:37:37,330 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:37:37,330 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:37:37,330 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:37:37,330 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:37:37,331 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:37:37,331 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:37:37,331 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:37:37,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:37:37,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:37:37,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:37:37,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:37:37,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:37:37,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:37:37,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:37:37,333 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:37:37,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:37:37,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:37:37,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:37:37,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:37:37,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:37:37,334 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:37:37,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:37:37,335 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:37:37,335 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:37:37,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:37:37,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:37:37,335 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:37:37,335 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_a64229f4-c8a8-4361-9660-a95429b8496e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64229f4-c8a8-4361-9660-a95429b8496e/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 234112184b071eb42f340136dfce6e1a552d788d086baea007a05a3140f2d157 [2022-12-14 08:37:37,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:37:37,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:37:37,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:37:37,537 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:37:37,537 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:37:37,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64229f4-c8a8-4361-9660-a95429b8496e/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2022-12-14 08:37:40,060 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:37:40,422 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:37:40,422 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64229f4-c8a8-4361-9660-a95429b8496e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2022-12-14 08:37:40,448 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64229f4-c8a8-4361-9660-a95429b8496e/bin/utaipan-gh47qXpMRh/data/e5ec76da6/c946052800a2478a88ddd641a5d4bfdf/FLAG4a25ea52f [2022-12-14 08:37:40,616 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64229f4-c8a8-4361-9660-a95429b8496e/bin/utaipan-gh47qXpMRh/data/e5ec76da6/c946052800a2478a88ddd641a5d4bfdf [2022-12-14 08:37:40,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:37:40,618 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:37:40,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:37:40,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:37:40,622 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:37:40,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:37:40" (1/1) ... [2022-12-14 08:37:40,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d252adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:37:40, skipping insertion in model container [2022-12-14 08:37:40,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:37:40" (1/1) ... [2022-12-14 08:37:40,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:37:40,723 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:37:41,285 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 08:37:41,322 WARN L623 FunctionHandler]: Unknown extern function __cmpxchg_wrong_size [2022-12-14 08:37:41,387 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 08:37:41,397 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 08:37:41,408 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 08:37:41,418 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 08:37:41,427 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 08:37:41,521 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 08:37:41,522 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 08:37:41,523 WARN L623 FunctionHandler]: Unknown extern function idr_find_slowpath [2022-12-14 08:37:41,600 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 08:37:41,601 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 08:37:41,602 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 08:37:41,606 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 08:37:41,606 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 08:37:41,607 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 08:37:41,620 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-14 08:37:41,642 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-14 08:37:41,687 WARN L623 FunctionHandler]: Unknown extern function tty_insert_flip_string_fixed_flag [2022-12-14 08:37:41,786 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 08:37:41,786 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 08:37:41,849 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 08:37:41,850 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 08:37:41,850 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 08:37:41,851 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 08:37:41,851 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 08:37:41,854 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 08:37:41,854 WARN L623 FunctionHandler]: Unknown extern function idr_alloc [2022-12-14 08:37:41,855 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 08:37:41,857 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 08:37:41,858 WARN L623 FunctionHandler]: Unknown extern function idr_remove [2022-12-14 08:37:41,858 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 08:37:41,861 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-12-14 08:37:41,862 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 08:37:41,864 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:41,865 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 08:37:41,878 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface_async [2022-12-14 08:37:41,882 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:37:41,885 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 08:37:41,894 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 08:37:41,900 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:41,902 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:41,904 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:41,906 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:41,907 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_hangup [2022-12-14 08:37:41,910 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 08:37:41,912 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:41,913 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:37:41,918 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:37:41,925 WARN L623 FunctionHandler]: Unknown extern function tty_flip_buffer_push [2022-12-14 08:37:41,930 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:41,932 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:41,939 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_wakeup [2022-12-14 08:37:41,944 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:41,945 WARN L623 FunctionHandler]: Unknown extern function tty_standard_install [2022-12-14 08:37:41,945 WARN L623 FunctionHandler]: Unknown extern function tty_port_put [2022-12-14 08:37:41,950 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:41,950 WARN L623 FunctionHandler]: Unknown extern function tty_port_open [2022-12-14 08:37:41,954 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:37:41,959 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:41,960 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 08:37:41,960 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-12-14 08:37:41,961 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:37:41,962 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 08:37:41,963 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 08:37:41,963 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 08:37:41,963 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 08:37:41,964 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 08:37:41,964 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 08:37:41,968 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:41,969 WARN L623 FunctionHandler]: Unknown extern function usb_put_intf [2022-12-14 08:37:41,969 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:37:41,969 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:37:41,973 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:41,974 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface_no_resume [2022-12-14 08:37:41,974 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 08:37:41,974 WARN L623 FunctionHandler]: Unknown extern function usb_get_from_anchor [2022-12-14 08:37:41,975 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface_async [2022-12-14 08:37:41,975 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 08:37:41,975 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 08:37:41,976 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 08:37:41,981 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:41,981 WARN L623 FunctionHandler]: Unknown extern function tty_port_put [2022-12-14 08:37:41,986 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:41,986 WARN L623 FunctionHandler]: Unknown extern function tty_port_hangup [2022-12-14 08:37:41,990 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:41,991 WARN L623 FunctionHandler]: Unknown extern function tty_port_close [2022-12-14 08:37:41,995 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface_async [2022-12-14 08:37:41,996 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-14 08:37:42,012 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,034 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 08:37:42,034 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 08:37:42,035 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 08:37:42,040 WARN L623 FunctionHandler]: Unknown extern function add_wait_queue [2022-12-14 08:37:42,041 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-14 08:37:42,041 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 08:37:42,041 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-12-14 08:37:42,049 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-12-14 08:37:42,050 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 08:37:42,053 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 08:37:42,055 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,058 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-12-14 08:37:42,062 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-12-14 08:37:42,066 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-12-14 08:37:42,071 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-12-14 08:37:42,072 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-12-14 08:37:42,072 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:37:42,074 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,074 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:37:42,075 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:37:42,075 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:37:42,076 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:37:42,078 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,079 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,080 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-12-14 08:37:42,080 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-12-14 08:37:42,081 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,082 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 08:37:42,082 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-12-14 08:37:42,083 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-12-14 08:37:42,084 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,085 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,086 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 08:37:42,086 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:37:42,089 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,090 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,092 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,094 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,094 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:37:42,101 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:37:42,103 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 08:37:42,104 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 08:37:42,104 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 08:37:42,105 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 08:37:42,105 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 08:37:42,105 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 08:37:42,107 WARN L623 FunctionHandler]: Unknown extern function tty_port_init [2022-12-14 08:37:42,113 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 08:37:42,114 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 08:37:42,115 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:37:42,115 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 08:37:42,116 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 08:37:42,116 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:37:42,117 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 08:37:42,118 WARN L623 FunctionHandler]: Unknown extern function usb_driver_claim_interface [2022-12-14 08:37:42,118 WARN L623 FunctionHandler]: Unknown extern function usb_get_intf [2022-12-14 08:37:42,119 WARN L623 FunctionHandler]: Unknown extern function tty_port_register_device [2022-12-14 08:37:42,119 WARN L623 FunctionHandler]: Unknown extern function usb_clear_halt [2022-12-14 08:37:42,120 WARN L623 FunctionHandler]: Unknown extern function usb_clear_halt [2022-12-14 08:37:42,120 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 08:37:42,121 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 08:37:42,121 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:37:42,121 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 08:37:42,122 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 08:37:42,122 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 08:37:42,123 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 08:37:42,123 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-12-14 08:37:42,123 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:37:42,129 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,130 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 08:37:42,130 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 08:37:42,131 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 08:37:42,136 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,137 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 08:37:42,137 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 08:37:42,138 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 08:37:42,138 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 08:37:42,138 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 08:37:42,139 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 08:37:42,139 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_get [2022-12-14 08:37:42,139 WARN L623 FunctionHandler]: Unknown extern function tty_vhangup [2022-12-14 08:37:42,140 WARN L623 FunctionHandler]: Unknown extern function tty_kref_put [2022-12-14 08:37:42,140 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_device [2022-12-14 08:37:42,140 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 08:37:42,140 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 08:37:42,141 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 08:37:42,141 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-12-14 08:37:42,142 WARN L623 FunctionHandler]: Unknown extern function usb_driver_release_interface [2022-12-14 08:37:42,142 WARN L623 FunctionHandler]: Unknown extern function tty_port_put [2022-12-14 08:37:42,151 WARN L623 FunctionHandler]: Unknown extern function usb_get_from_anchor [2022-12-14 08:37:42,155 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_hangup [2022-12-14 08:37:42,172 WARN L623 FunctionHandler]: Unknown extern function tty_set_operations [2022-12-14 08:37:42,172 WARN L623 FunctionHandler]: Unknown extern function tty_register_driver [2022-12-14 08:37:42,173 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-12-14 08:37:42,173 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_driver [2022-12-14 08:37:42,174 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-12-14 08:37:42,174 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:37:42,177 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_driver [2022-12-14 08:37:42,177 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-12-14 08:37:42,190 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 08:37:42,197 WARN L623 FunctionHandler]: Unknown extern function ldv_check_final_state [2022-12-14 08:37:42,198 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 08:37:42,199 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 08:37:42,199 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 08:37:42,199 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 08:37:42,200 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 08:37:42,201 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 08:37:42,202 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 08:37:42,202 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 08:37:42,205 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_a64229f4-c8a8-4361-9660-a95429b8496e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[254896,254909] [2022-12-14 08:37:42,221 WARN L623 FunctionHandler]: Unknown extern function ldv_some_page [2022-12-14 08:37:42,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:37:42,304 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:37:42,380 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 08:37:42,382 WARN L623 FunctionHandler]: Unknown extern function __cmpxchg_wrong_size [2022-12-14 08:37:42,384 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 08:37:42,385 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 08:37:42,385 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 08:37:42,385 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 08:37:42,386 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 08:37:42,388 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 08:37:42,389 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 08:37:42,390 WARN L623 FunctionHandler]: Unknown extern function idr_find_slowpath [2022-12-14 08:37:42,393 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 08:37:42,394 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-12-14 08:37:42,394 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-12-14 08:37:42,406 WARN L623 FunctionHandler]: Unknown extern function __might_fault [2022-12-14 08:37:42,407 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-12-14 08:37:42,407 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-12-14 08:37:42,408 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-14 08:37:42,409 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-14 08:37:42,410 WARN L623 FunctionHandler]: Unknown extern function tty_insert_flip_string_fixed_flag [2022-12-14 08:37:42,417 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 08:37:42,418 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 08:37:42,425 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 08:37:42,425 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 08:37:42,425 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 08:37:42,426 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 08:37:42,426 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 08:37:42,426 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 08:37:42,427 WARN L623 FunctionHandler]: Unknown extern function idr_alloc [2022-12-14 08:37:42,427 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 08:37:42,427 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 08:37:42,427 WARN L623 FunctionHandler]: Unknown extern function idr_remove [2022-12-14 08:37:42,428 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 08:37:42,428 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-12-14 08:37:42,428 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 08:37:42,430 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,430 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 08:37:42,433 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface_async [2022-12-14 08:37:42,433 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:37:42,434 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 08:37:42,437 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 08:37:42,439 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,440 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,442 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,444 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,444 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_hangup [2022-12-14 08:37:42,446 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 08:37:42,447 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,448 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:37:42,450 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:37:42,451 WARN L623 FunctionHandler]: Unknown extern function tty_flip_buffer_push [2022-12-14 08:37:42,454 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,456 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,458 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_wakeup [2022-12-14 08:37:42,459 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,460 WARN L623 FunctionHandler]: Unknown extern function tty_standard_install [2022-12-14 08:37:42,461 WARN L623 FunctionHandler]: Unknown extern function tty_port_put [2022-12-14 08:37:42,462 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,463 WARN L623 FunctionHandler]: Unknown extern function tty_port_open [2022-12-14 08:37:42,464 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:37:42,465 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,465 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 08:37:42,465 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-12-14 08:37:42,466 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:37:42,466 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 08:37:42,467 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 08:37:42,467 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 08:37:42,467 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 08:37:42,467 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 08:37:42,467 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 08:37:42,468 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,469 WARN L623 FunctionHandler]: Unknown extern function usb_put_intf [2022-12-14 08:37:42,469 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:37:42,469 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:37:42,470 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,471 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface_no_resume [2022-12-14 08:37:42,471 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 08:37:42,471 WARN L623 FunctionHandler]: Unknown extern function usb_get_from_anchor [2022-12-14 08:37:42,471 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface_async [2022-12-14 08:37:42,472 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 08:37:42,472 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 08:37:42,472 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 08:37:42,473 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,473 WARN L623 FunctionHandler]: Unknown extern function tty_port_put [2022-12-14 08:37:42,474 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,475 WARN L623 FunctionHandler]: Unknown extern function tty_port_hangup [2022-12-14 08:37:42,476 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,476 WARN L623 FunctionHandler]: Unknown extern function tty_port_close [2022-12-14 08:37:42,477 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface_async [2022-12-14 08:37:42,478 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-14 08:37:42,480 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,484 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 08:37:42,484 WARN L623 FunctionHandler]: Unknown extern function capable [2022-12-14 08:37:42,485 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 08:37:42,487 WARN L623 FunctionHandler]: Unknown extern function add_wait_queue [2022-12-14 08:37:42,487 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-12-14 08:37:42,487 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 08:37:42,487 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-12-14 08:37:42,489 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-12-14 08:37:42,490 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 08:37:42,492 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 08:37:42,493 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,494 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-12-14 08:37:42,495 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-12-14 08:37:42,496 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-12-14 08:37:42,498 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-12-14 08:37:42,498 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-12-14 08:37:42,499 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:37:42,500 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,500 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:37:42,500 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:37:42,501 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:37:42,501 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:37:42,502 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,503 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,503 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-12-14 08:37:42,504 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-12-14 08:37:42,504 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,505 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 08:37:42,505 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-12-14 08:37:42,505 WARN L623 FunctionHandler]: Unknown extern function usb_ifnum_to_if [2022-12-14 08:37:42,506 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,507 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,507 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 08:37:42,507 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:37:42,509 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,510 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,511 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,512 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,512 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 08:37:42,513 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:37:42,513 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 08:37:42,514 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 08:37:42,514 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 08:37:42,514 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 08:37:42,514 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 08:37:42,515 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 08:37:42,515 WARN L623 FunctionHandler]: Unknown extern function tty_port_init [2022-12-14 08:37:42,520 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 08:37:42,521 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 08:37:42,521 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:37:42,521 WARN L623 FunctionHandler]: Unknown extern function device_create_file [2022-12-14 08:37:42,521 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 08:37:42,521 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:37:42,522 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 08:37:42,522 WARN L623 FunctionHandler]: Unknown extern function usb_driver_claim_interface [2022-12-14 08:37:42,522 WARN L623 FunctionHandler]: Unknown extern function usb_get_intf [2022-12-14 08:37:42,523 WARN L623 FunctionHandler]: Unknown extern function tty_port_register_device [2022-12-14 08:37:42,523 WARN L623 FunctionHandler]: Unknown extern function usb_clear_halt [2022-12-14 08:37:42,523 WARN L623 FunctionHandler]: Unknown extern function usb_clear_halt [2022-12-14 08:37:42,523 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 08:37:42,524 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 08:37:42,524 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:37:42,524 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 08:37:42,524 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 08:37:42,524 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 08:37:42,525 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 08:37:42,525 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-12-14 08:37:42,525 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 08:37:42,527 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,527 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 08:37:42,527 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 08:37:42,527 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 08:37:42,528 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 08:37:42,529 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 08:37:42,529 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 08:37:42,529 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 08:37:42,529 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 08:37:42,530 WARN L623 FunctionHandler]: Unknown extern function device_remove_file [2022-12-14 08:37:42,530 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 08:37:42,530 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_get [2022-12-14 08:37:42,530 WARN L623 FunctionHandler]: Unknown extern function tty_vhangup [2022-12-14 08:37:42,530 WARN L623 FunctionHandler]: Unknown extern function tty_kref_put [2022-12-14 08:37:42,530 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_device [2022-12-14 08:37:42,530 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 08:37:42,531 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 08:37:42,531 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 08:37:42,531 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-12-14 08:37:42,531 WARN L623 FunctionHandler]: Unknown extern function usb_driver_release_interface [2022-12-14 08:37:42,532 WARN L623 FunctionHandler]: Unknown extern function tty_port_put [2022-12-14 08:37:42,533 WARN L623 FunctionHandler]: Unknown extern function usb_get_from_anchor [2022-12-14 08:37:42,534 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_hangup [2022-12-14 08:37:42,543 WARN L623 FunctionHandler]: Unknown extern function tty_set_operations [2022-12-14 08:37:42,544 WARN L623 FunctionHandler]: Unknown extern function tty_register_driver [2022-12-14 08:37:42,544 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-12-14 08:37:42,544 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_driver [2022-12-14 08:37:42,555 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-12-14 08:37:42,555 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 08:37:42,555 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_driver [2022-12-14 08:37:42,556 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-12-14 08:37:42,559 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 08:37:42,564 WARN L623 FunctionHandler]: Unknown extern function ldv_check_final_state [2022-12-14 08:37:42,565 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 08:37:42,565 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 08:37:42,566 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 08:37:42,566 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 08:37:42,566 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 08:37:42,567 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 08:37:42,568 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 08:37:42,568 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 08:37:42,568 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_a64229f4-c8a8-4361-9660-a95429b8496e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[254896,254909] [2022-12-14 08:37:42,569 WARN L623 FunctionHandler]: Unknown extern function ldv_some_page [2022-12-14 08:37:42,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:37:42,659 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:37:42,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:37:42 WrapperNode [2022-12-14 08:37:42,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:37:42,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:37:42,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:37:42,660 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:37:42,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:37:42" (1/1) ... [2022-12-14 08:37:42,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:37:42" (1/1) ... [2022-12-14 08:37:42,867 INFO L138 Inliner]: procedures = 286, calls = 3934, calls flagged for inlining = 140, calls inlined = 119, statements flattened = 8095 [2022-12-14 08:37:42,867 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:37:42,868 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:37:42,868 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:37:42,868 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:37:42,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:37:42" (1/1) ... [2022-12-14 08:37:42,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:37:42" (1/1) ... [2022-12-14 08:37:42,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:37:42" (1/1) ... [2022-12-14 08:37:42,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:37:42" (1/1) ... [2022-12-14 08:37:43,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:37:42" (1/1) ... [2022-12-14 08:37:43,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:37:42" (1/1) ... [2022-12-14 08:37:43,088 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:37:42" (1/1) ... [2022-12-14 08:37:43,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:37:42" (1/1) ... [2022-12-14 08:37:43,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:37:43,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:37:43,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:37:43,123 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:37:43,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:37:42" (1/1) ... [2022-12-14 08:37:43,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:37:43,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64229f4-c8a8-4361-9660-a95429b8496e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:37:43,145 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64229f4-c8a8-4361-9660-a95429b8496e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:37:43,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64229f4-c8a8-4361-9660-a95429b8496e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:37:43,179 INFO L130 BoogieDeclarations]: Found specification of procedure acm_disconnect [2022-12-14 08:37:43,179 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_disconnect [2022-12-14 08:37:43,179 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2022-12-14 08:37:43,179 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2022-12-14 08:37:43,179 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2022-12-14 08:37:43,179 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-12-14 08:37:43,179 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-12-14 08:37:43,179 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-12-14 08:37:43,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 08:37:43,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 08:37:43,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 08:37:43,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 08:37:43,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 08:37:43,180 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 08:37:43,180 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-12-14 08:37:43,180 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-12-14 08:37:43,180 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_cleanup [2022-12-14 08:37:43,180 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_cleanup [2022-12-14 08:37:43,180 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-12-14 08:37:43,180 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-12-14 08:37:43,180 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-12-14 08:37:43,180 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-12-14 08:37:43,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-12-14 08:37:43,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-12-14 08:37:43,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 08:37:43,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 08:37:43,180 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-12-14 08:37:43,180 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-12-14 08:37:43,180 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2022-12-14 08:37:43,180 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2022-12-14 08:37:43,180 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_free [2022-12-14 08:37:43,180 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_free [2022-12-14 08:37:43,180 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-14 08:37:43,180 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-14 08:37:43,180 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-12-14 08:37:43,180 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-12-14 08:37:43,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-14 08:37:43,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-14 08:37:43,181 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-12-14 08:37:43,181 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-12-14 08:37:43,181 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2022-12-14 08:37:43,181 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2022-12-14 08:37:43,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-12-14 08:37:43,181 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-12-14 08:37:43,181 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 08:37:43,181 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 08:37:43,181 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-14 08:37:43,181 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-14 08:37:43,181 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_put [2022-12-14 08:37:43,181 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_put [2022-12-14 08:37:43,181 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_chars_in_buffer [2022-12-14 08:37:43,181 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_chars_in_buffer [2022-12-14 08:37:43,181 INFO L130 BoogieDeclarations]: Found specification of procedure acm_resume [2022-12-14 08:37:43,181 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_resume [2022-12-14 08:37:43,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:37:43,181 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 08:37:43,181 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 08:37:43,181 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 08:37:43,181 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_msg [2022-12-14 08:37:43,181 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_msg [2022-12-14 08:37:43,182 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-12-14 08:37:43,182 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-12-14 08:37:43,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 08:37:43,182 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_hangup [2022-12-14 08:37:43,182 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_hangup [2022-12-14 08:37:43,182 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2022-12-14 08:37:43,182 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2022-12-14 08:37:43,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-12-14 08:37:43,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-12-14 08:37:43,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 08:37:43,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 08:37:43,182 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-12-14 08:37:43,182 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-12-14 08:37:43,182 INFO L130 BoogieDeclarations]: Found specification of procedure acm_softint [2022-12-14 08:37:43,182 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_softint [2022-12-14 08:37:43,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:37:43,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 08:37:43,182 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-12-14 08:37:43,182 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-12-14 08:37:43,182 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-12-14 08:37:43,182 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-12-14 08:37:43,182 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-14 08:37:43,182 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-14 08:37:43,182 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-12-14 08:37:43,183 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-12-14 08:37:43,183 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmget [2022-12-14 08:37:43,183 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmget [2022-12-14 08:37:43,183 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-12-14 08:37:43,183 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-12-14 08:37:43,183 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_set_termios [2022-12-14 08:37:43,183 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_set_termios [2022-12-14 08:37:43,183 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2022-12-14 08:37:43,183 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2022-12-14 08:37:43,183 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_from_anchor [2022-12-14 08:37:43,183 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_from_anchor [2022-12-14 08:37:43,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 08:37:43,183 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_break_ctl [2022-12-14 08:37:43,183 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_break_ctl [2022-12-14 08:37:43,183 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-12-14 08:37:43,183 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-12-14 08:37:43,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 08:37:43,183 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-12-14 08:37:43,183 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-12-14 08:37:43,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 08:37:43,183 INFO L130 BoogieDeclarations]: Found specification of procedure acm_start_wb [2022-12-14 08:37:43,183 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_start_wb [2022-12-14 08:37:43,183 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-12-14 08:37:43,183 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-12-14 08:37:43,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 08:37:43,184 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 08:37:43,184 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-12-14 08:37:43,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-12-14 08:37:43,184 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_throttle [2022-12-14 08:37:43,184 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_throttle [2022-12-14 08:37:43,184 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_is_avail [2022-12-14 08:37:43,184 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_is_avail [2022-12-14 08:37:43,184 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 08:37:43,184 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 08:37:43,184 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-12-14 08:37:43,184 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-12-14 08:37:43,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-12-14 08:37:43,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-12-14 08:37:43,184 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write_room [2022-12-14 08:37:43,184 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write_room [2022-12-14 08:37:43,184 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urb [2022-12-14 08:37:43,184 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urb [2022-12-14 08:37:43,184 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2022-12-14 08:37:43,184 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2022-12-14 08:37:43,184 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 08:37:43,184 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 08:37:43,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:37:43,184 INFO L130 BoogieDeclarations]: Found specification of procedure acm_set_control [2022-12-14 08:37:43,184 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_set_control [2022-12-14 08:37:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-12-14 08:37:43,185 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-12-14 08:37:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_done [2022-12-14 08:37:43,185 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_done [2022-12-14 08:37:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_ioctl [2022-12-14 08:37:43,185 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_ioctl [2022-12-14 08:37:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure acm_release_minor [2022-12-14 08:37:43,185 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_release_minor [2022-12-14 08:37:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-12-14 08:37:43,185 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-12-14 08:37:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 08:37:43,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 08:37:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-12-14 08:37:43,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-12-14 08:37:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2022-12-14 08:37:43,185 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2022-12-14 08:37:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_unthrottle [2022-12-14 08:37:43,185 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_unthrottle [2022-12-14 08:37:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-12-14 08:37:43,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-12-14 08:37:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 08:37:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-12-14 08:37:43,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-12-14 08:37:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:37:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 08:37:43,185 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 08:37:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-12-14 08:37:43,186 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-12-14 08:37:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_dtr_rts [2022-12-14 08:37:43,186 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_dtr_rts [2022-12-14 08:37:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-12-14 08:37:43,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-12-14 08:37:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-12-14 08:37:43,186 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-12-14 08:37:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_buffers_free [2022-12-14 08:37:43,186 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_buffers_free [2022-12-14 08:37:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urbs [2022-12-14 08:37:43,186 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urbs [2022-12-14 08:37:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_install [2022-12-14 08:37:43,186 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_install [2022-12-14 08:37:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure stop_data_traffic [2022-12-14 08:37:43,186 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_data_traffic [2022-12-14 08:37:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-12-14 08:37:43,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-12-14 08:37:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 08:37:43,186 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 08:37:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:37:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-12-14 08:37:43,186 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-12-14 08:37:43,186 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-12-14 08:37:43,186 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-12-14 08:37:43,187 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmset [2022-12-14 08:37:43,187 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmset [2022-12-14 08:37:43,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:37:43,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:37:43,187 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2022-12-14 08:37:43,187 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2022-12-14 08:37:43,187 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-12-14 08:37:43,187 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-12-14 08:37:43,682 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:37:43,685 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:37:43,863 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 08:37:58,852 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:37:59,886 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:37:59,886 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 08:37:59,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:37:59 BoogieIcfgContainer [2022-12-14 08:37:59,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:37:59,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:37:59,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:37:59,895 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:37:59,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:37:40" (1/3) ... [2022-12-14 08:37:59,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632d0bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:37:59, skipping insertion in model container [2022-12-14 08:37:59,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:37:42" (2/3) ... [2022-12-14 08:37:59,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632d0bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:37:59, skipping insertion in model container [2022-12-14 08:37:59,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:37:59" (3/3) ... [2022-12-14 08:37:59,898 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2022-12-14 08:37:59,913 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:37:59,913 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 08:37:59,975 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:37:59,981 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;@5fafdf18, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:37:59,981 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 08:37:59,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 1151 states, 721 states have (on average 1.3564493758668517) internal successors, (978), 737 states have internal predecessors, (978), 343 states have call successors, (343), 86 states have call predecessors, (343), 85 states have return successors, (334), 334 states have call predecessors, (334), 334 states have call successors, (334) [2022-12-14 08:38:00,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-12-14 08:38:00,018 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:38:00,019 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 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] [2022-12-14 08:38:00,019 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:38:00,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:38:00,023 INFO L85 PathProgramCache]: Analyzing trace with hash -752369592, now seen corresponding path program 1 times [2022-12-14 08:38:00,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:38:00,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353260261] [2022-12-14 08:38:00,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:38:00,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:38:00,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:38:01,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1106 trivial. 0 not checked. [2022-12-14 08:38:01,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:38:01,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353260261] [2022-12-14 08:38:01,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353260261] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:38:01,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:38:01,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:38:01,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884203052] [2022-12-14 08:38:01,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:38:01,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:38:01,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:38:01,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:38:01,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:38:01,395 INFO L87 Difference]: Start difference. First operand has 1151 states, 721 states have (on average 1.3564493758668517) internal successors, (978), 737 states have internal predecessors, (978), 343 states have call successors, (343), 86 states have call predecessors, (343), 85 states have return successors, (334), 334 states have call predecessors, (334), 334 states have call successors, (334) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 08:38:03,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:38:05,788 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 08:38:09,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:38:09,105 INFO L93 Difference]: Finished difference Result 3253 states and 4710 transitions. [2022-12-14 08:38:09,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:38:09,107 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 274 [2022-12-14 08:38:09,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:38:09,124 INFO L225 Difference]: With dead ends: 3253 [2022-12-14 08:38:09,124 INFO L226 Difference]: Without dead ends: 2116 [2022-12-14 08:38:09,130 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 08:38:09,132 INFO L413 NwaCegarLoop]: 1730 mSDtfsCounter, 1484 mSDsluCounter, 1361 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 3091 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-12-14 08:38:09,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 3091 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 438 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-12-14 08:38:09,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2116 states. [2022-12-14 08:38:09,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2116 to 2112. [2022-12-14 08:38:09,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2112 states, 1344 states have (on average 1.3489583333333333) internal successors, (1813), 1355 states have internal predecessors, (1813), 603 states have call successors, (603), 165 states have call predecessors, (603), 164 states have return successors, (602), 601 states have call predecessors, (602), 602 states have call successors, (602) [2022-12-14 08:38:09,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2112 states to 2112 states and 3018 transitions. [2022-12-14 08:38:09,251 INFO L78 Accepts]: Start accepts. Automaton has 2112 states and 3018 transitions. Word has length 274 [2022-12-14 08:38:09,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:38:09,252 INFO L495 AbstractCegarLoop]: Abstraction has 2112 states and 3018 transitions. [2022-12-14 08:38:09,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-12-14 08:38:09,252 INFO L276 IsEmpty]: Start isEmpty. Operand 2112 states and 3018 transitions. [2022-12-14 08:38:09,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-12-14 08:38:09,258 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:38:09,258 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 8, 8, 8, 8, 8, 8, 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] [2022-12-14 08:38:09,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:38:09,258 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:38:09,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:38:09,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1052704868, now seen corresponding path program 1 times [2022-12-14 08:38:09,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:38:09,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546454731] [2022-12-14 08:38:09,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:38:09,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:38:09,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:38:09,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1110 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1110 trivial. 0 not checked. [2022-12-14 08:38:09,984 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:38:09,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546454731] [2022-12-14 08:38:09,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546454731] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:38:09,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:38:09,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:38:09,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315552249] [2022-12-14 08:38:09,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:38:09,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:38:09,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:38:09,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:38:09,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:38:09,987 INFO L87 Difference]: Start difference. First operand 2112 states and 3018 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 08:38:11,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:38:13,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:38:16,423 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:38:16,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:38:16,962 INFO L93 Difference]: Finished difference Result 5318 states and 7573 transitions. [2022-12-14 08:38:16,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:38:16,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 282 [2022-12-14 08:38:16,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:38:16,977 INFO L225 Difference]: With dead ends: 5318 [2022-12-14 08:38:16,977 INFO L226 Difference]: Without dead ends: 3255 [2022-12-14 08:38:16,982 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 08:38:16,983 INFO L413 NwaCegarLoop]: 1672 mSDtfsCounter, 946 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 3007 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-12-14 08:38:16,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [946 Valid, 3007 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 451 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2022-12-14 08:38:16,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3255 states. [2022-12-14 08:38:17,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3255 to 3252. [2022-12-14 08:38:17,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3252 states, 2103 states have (on average 1.3604374702805515) internal successors, (2861), 2119 states have internal predecessors, (2861), 881 states have call successors, (881), 268 states have call predecessors, (881), 267 states have return successors, (880), 878 states have call predecessors, (880), 880 states have call successors, (880) [2022-12-14 08:38:17,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3252 states to 3252 states and 4622 transitions. [2022-12-14 08:38:17,088 INFO L78 Accepts]: Start accepts. Automaton has 3252 states and 4622 transitions. Word has length 282 [2022-12-14 08:38:17,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:38:17,089 INFO L495 AbstractCegarLoop]: Abstraction has 3252 states and 4622 transitions. [2022-12-14 08:38:17,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-12-14 08:38:17,089 INFO L276 IsEmpty]: Start isEmpty. Operand 3252 states and 4622 transitions. [2022-12-14 08:38:17,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-12-14 08:38:17,094 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:38:17,094 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 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] [2022-12-14 08:38:17,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:38:17,095 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:38:17,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:38:17,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1877616832, now seen corresponding path program 1 times [2022-12-14 08:38:17,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:38:17,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893010152] [2022-12-14 08:38:17,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:38:17,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:38:17,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:38:17,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1106 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1106 trivial. 0 not checked. [2022-12-14 08:38:17,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:38:17,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893010152] [2022-12-14 08:38:17,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893010152] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:38:17,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:38:17,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:38:17,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132295059] [2022-12-14 08:38:17,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:38:17,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:38:17,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:38:17,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:38:17,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:38:17,897 INFO L87 Difference]: Start difference. First operand 3252 states and 4622 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 08:38:19,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:38:21,461 WARN L539 Checker$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 08:38:23,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:38:25,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:38:26,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:38:26,552 INFO L93 Difference]: Finished difference Result 8212 states and 11630 transitions. [2022-12-14 08:38:26,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:38:26,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 274 [2022-12-14 08:38:26,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:38:26,569 INFO L225 Difference]: With dead ends: 8212 [2022-12-14 08:38:26,569 INFO L226 Difference]: Without dead ends: 5009 [2022-12-14 08:38:26,576 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 08:38:26,577 INFO L413 NwaCegarLoop]: 1914 mSDtfsCounter, 1119 mSDsluCounter, 1270 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 3184 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-12-14 08:38:26,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 3184 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 559 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2022-12-14 08:38:26,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5009 states. [2022-12-14 08:38:26,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5009 to 5006. [2022-12-14 08:38:26,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5006 states, 3235 states have (on average 1.355177743431221) internal successors, (4384), 3259 states have internal predecessors, (4384), 1345 states have call successors, (1345), 426 states have call predecessors, (1345), 425 states have return successors, (1344), 1342 states have call predecessors, (1344), 1344 states have call successors, (1344) [2022-12-14 08:38:26,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5006 states to 5006 states and 7073 transitions. [2022-12-14 08:38:26,765 INFO L78 Accepts]: Start accepts. Automaton has 5006 states and 7073 transitions. Word has length 274 [2022-12-14 08:38:26,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:38:26,765 INFO L495 AbstractCegarLoop]: Abstraction has 5006 states and 7073 transitions. [2022-12-14 08:38:26,766 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-12-14 08:38:26,766 INFO L276 IsEmpty]: Start isEmpty. Operand 5006 states and 7073 transitions. [2022-12-14 08:38:26,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2022-12-14 08:38:26,776 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:38:26,776 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 8, 8, 8, 8, 8, 8, 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] [2022-12-14 08:38:26,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 08:38:26,777 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:38:26,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:38:26,777 INFO L85 PathProgramCache]: Analyzing trace with hash -1126289277, now seen corresponding path program 1 times [2022-12-14 08:38:26,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:38:26,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150467295] [2022-12-14 08:38:26,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:38:26,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:38:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:38:27,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1106 trivial. 0 not checked. [2022-12-14 08:38:27,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:38:27,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150467295] [2022-12-14 08:38:27,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150467295] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:38:27,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:38:27,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:38:27,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572132604] [2022-12-14 08:38:27,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:38:27,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:38:27,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:38:27,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:38:27,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:38:27,569 INFO L87 Difference]: Start difference. First operand 5006 states and 7073 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 08:38:29,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:38:31,778 WARN L539 Checker$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 08:38:33,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:38:33,428 INFO L93 Difference]: Finished difference Result 10053 states and 14205 transitions. [2022-12-14 08:38:33,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:38:33,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 309 [2022-12-14 08:38:33,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:38:33,443 INFO L225 Difference]: With dead ends: 10053 [2022-12-14 08:38:33,443 INFO L226 Difference]: Without dead ends: 5107 [2022-12-14 08:38:33,452 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 08:38:33,452 INFO L413 NwaCegarLoop]: 1542 mSDtfsCounter, 1532 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1532 SdHoareTripleChecker+Valid, 1750 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2022-12-14 08:38:33,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1532 Valid, 1750 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2022-12-14 08:38:33,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5107 states. [2022-12-14 08:38:33,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5107 to 5083. [2022-12-14 08:38:33,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5083 states, 3288 states have (on average 1.3558394160583942) internal successors, (4458), 3317 states have internal predecessors, (4458), 1360 states have call successors, (1360), 435 states have call predecessors, (1360), 434 states have return successors, (1359), 1352 states have call predecessors, (1359), 1359 states have call successors, (1359) [2022-12-14 08:38:33,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5083 states to 5083 states and 7177 transitions. [2022-12-14 08:38:33,610 INFO L78 Accepts]: Start accepts. Automaton has 5083 states and 7177 transitions. Word has length 309 [2022-12-14 08:38:33,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:38:33,611 INFO L495 AbstractCegarLoop]: Abstraction has 5083 states and 7177 transitions. [2022-12-14 08:38:33,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 08:38:33,611 INFO L276 IsEmpty]: Start isEmpty. Operand 5083 states and 7177 transitions. [2022-12-14 08:38:33,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2022-12-14 08:38:33,617 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:38:33,618 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:38:33,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 08:38:33,618 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:38:33,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:38:33,618 INFO L85 PathProgramCache]: Analyzing trace with hash -82035489, now seen corresponding path program 1 times [2022-12-14 08:38:33,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:38:33,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57883419] [2022-12-14 08:38:33,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:38:33,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:38:33,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:38:34,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1407 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1400 trivial. 0 not checked. [2022-12-14 08:38:34,508 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:38:34,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57883419] [2022-12-14 08:38:34,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57883419] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:38:34,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:38:34,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:38:34,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848214495] [2022-12-14 08:38:34,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:38:34,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:38:34,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:38:34,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:38:34,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:38:34,510 INFO L87 Difference]: Start difference. First operand 5083 states and 7177 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 08:38:36,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:38:38,688 WARN L539 Checker$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 08:38:41,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:38:43,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:38:44,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:38:45,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:38:45,301 INFO L93 Difference]: Finished difference Result 9982 states and 14101 transitions. [2022-12-14 08:38:45,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:38:45,302 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 334 [2022-12-14 08:38:45,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:38:45,316 INFO L225 Difference]: With dead ends: 9982 [2022-12-14 08:38:45,316 INFO L226 Difference]: Without dead ends: 5038 [2022-12-14 08:38:45,324 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:38:45,325 INFO L413 NwaCegarLoop]: 1417 mSDtfsCounter, 1 mSDsluCounter, 2827 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4244 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-12-14 08:38:45,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4244 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 621 Invalid, 2 Unknown, 0 Unchecked, 10.6s Time] [2022-12-14 08:38:45,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5038 states. [2022-12-14 08:38:45,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5038 to 5032. [2022-12-14 08:38:45,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5032 states, 3256 states have (on average 1.3581081081081081) internal successors, (4422), 3286 states have internal predecessors, (4422), 1347 states have call successors, (1347), 429 states have call predecessors, (1347), 428 states have return successors, (1346), 1338 states have call predecessors, (1346), 1346 states have call successors, (1346) [2022-12-14 08:38:45,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5032 states to 5032 states and 7115 transitions. [2022-12-14 08:38:45,488 INFO L78 Accepts]: Start accepts. Automaton has 5032 states and 7115 transitions. Word has length 334 [2022-12-14 08:38:45,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:38:45,489 INFO L495 AbstractCegarLoop]: Abstraction has 5032 states and 7115 transitions. [2022-12-14 08:38:45,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2022-12-14 08:38:45,489 INFO L276 IsEmpty]: Start isEmpty. Operand 5032 states and 7115 transitions. [2022-12-14 08:38:45,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-12-14 08:38:45,495 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:38:45,495 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:38:45,495 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 08:38:45,495 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:38:45,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:38:45,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1123115354, now seen corresponding path program 1 times [2022-12-14 08:38:45,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:38:45,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393705144] [2022-12-14 08:38:45,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:38:45,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:38:45,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:38:46,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1407 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1407 trivial. 0 not checked. [2022-12-14 08:38:46,319 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:38:46,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393705144] [2022-12-14 08:38:46,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393705144] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:38:46,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:38:46,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:38:46,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020498348] [2022-12-14 08:38:46,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:38:46,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:38:46,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:38:46,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:38:46,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:38:46,321 INFO L87 Difference]: Start difference. First operand 5032 states and 7115 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 08:38:48,469 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:38:50,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:38:53,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:38:54,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:38:54,437 INFO L93 Difference]: Finished difference Result 8408 states and 11933 transitions. [2022-12-14 08:38:54,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:38:54,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 339 [2022-12-14 08:38:54,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:38:54,466 INFO L225 Difference]: With dead ends: 8408 [2022-12-14 08:38:54,466 INFO L226 Difference]: Without dead ends: 8405 [2022-12-14 08:38:54,470 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 08:38:54,470 INFO L413 NwaCegarLoop]: 1622 mSDtfsCounter, 1195 mSDsluCounter, 1232 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 2854 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:38:54,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1195 Valid, 2854 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 385 Invalid, 3 Unknown, 0 Unchecked, 8.0s Time] [2022-12-14 08:38:54,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8405 states. [2022-12-14 08:38:54,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8405 to 8237. [2022-12-14 08:38:54,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8237 states, 5442 states have (on average 1.3768834987137082) internal successors, (7493), 5506 states have internal predecessors, (7493), 2081 states have call successors, (2081), 718 states have call predecessors, (2081), 713 states have return successors, (2096), 2042 states have call predecessors, (2096), 2080 states have call successors, (2096) [2022-12-14 08:38:54,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8237 states to 8237 states and 11670 transitions. [2022-12-14 08:38:54,734 INFO L78 Accepts]: Start accepts. Automaton has 8237 states and 11670 transitions. Word has length 339 [2022-12-14 08:38:54,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:38:54,734 INFO L495 AbstractCegarLoop]: Abstraction has 8237 states and 11670 transitions. [2022-12-14 08:38:54,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 08:38:54,735 INFO L276 IsEmpty]: Start isEmpty. Operand 8237 states and 11670 transitions. [2022-12-14 08:38:54,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2022-12-14 08:38:54,741 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:38:54,741 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 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] [2022-12-14 08:38:54,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 08:38:54,742 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:38:54,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:38:54,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1952171478, now seen corresponding path program 1 times [2022-12-14 08:38:54,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:38:54,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103923968] [2022-12-14 08:38:54,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:38:54,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:38:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:38:55,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1403 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1403 trivial. 0 not checked. [2022-12-14 08:38:55,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:38:55,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103923968] [2022-12-14 08:38:55,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103923968] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:38:55,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:38:55,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:38:55,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831823886] [2022-12-14 08:38:55,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:38:55,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:38:55,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:38:55,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:38:55,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:38:55,444 INFO L87 Difference]: Start difference. First operand 8237 states and 11670 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-12-14 08:38:57,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:38:59,580 WARN L539 Checker$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 08:39:02,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:39:04,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:39:06,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:39:06,314 INFO L93 Difference]: Finished difference Result 18915 states and 26778 transitions. [2022-12-14 08:39:06,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:39:06,315 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), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 341 [2022-12-14 08:39:06,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:39:06,352 INFO L225 Difference]: With dead ends: 18915 [2022-12-14 08:39:06,352 INFO L226 Difference]: Without dead ends: 10825 [2022-12-14 08:39:06,366 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 08:39:06,367 INFO L413 NwaCegarLoop]: 1582 mSDtfsCounter, 854 mSDsluCounter, 1400 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 2982 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-12-14 08:39:06,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 2982 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 429 Invalid, 3 Unknown, 0 Unchecked, 10.6s Time] [2022-12-14 08:39:06,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10825 states. [2022-12-14 08:39:06,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10825 to 9224. [2022-12-14 08:39:06,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9224 states, 6093 states have (on average 1.3766617429837518) internal successors, (8388), 6161 states have internal predecessors, (8388), 2327 states have call successors, (2327), 808 states have call predecessors, (2327), 803 states have return successors, (2346), 2287 states have call predecessors, (2346), 2326 states have call successors, (2346) [2022-12-14 08:39:06,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9224 states to 9224 states and 13061 transitions. [2022-12-14 08:39:06,662 INFO L78 Accepts]: Start accepts. Automaton has 9224 states and 13061 transitions. Word has length 341 [2022-12-14 08:39:06,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:39:06,663 INFO L495 AbstractCegarLoop]: Abstraction has 9224 states and 13061 transitions. [2022-12-14 08:39:06,663 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), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-12-14 08:39:06,663 INFO L276 IsEmpty]: Start isEmpty. Operand 9224 states and 13061 transitions. [2022-12-14 08:39:06,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2022-12-14 08:39:06,672 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:39:06,672 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:39:06,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 08:39:06,672 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:39:06,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:39:06,673 INFO L85 PathProgramCache]: Analyzing trace with hash 2046604702, now seen corresponding path program 1 times [2022-12-14 08:39:06,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:39:06,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434929481] [2022-12-14 08:39:06,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:39:06,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:39:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:39:07,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1405 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1400 trivial. 0 not checked. [2022-12-14 08:39:07,542 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:39:07,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434929481] [2022-12-14 08:39:07,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434929481] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:39:07,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:39:07,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:39:07,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156951444] [2022-12-14 08:39:07,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:39:07,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:39:07,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:39:07,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:39:07,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:39:07,544 INFO L87 Difference]: Start difference. First operand 9224 states and 13061 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-12-14 08:39:09,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:39:11,752 WARN L539 Checker$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 08:39:14,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:39:16,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:39:16,516 INFO L93 Difference]: Finished difference Result 23967 states and 33943 transitions. [2022-12-14 08:39:16,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:39:16,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 339 [2022-12-14 08:39:16,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:39:16,554 INFO L225 Difference]: With dead ends: 23967 [2022-12-14 08:39:16,554 INFO L226 Difference]: Without dead ends: 14805 [2022-12-14 08:39:16,573 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 08:39:16,574 INFO L413 NwaCegarLoop]: 2026 mSDtfsCounter, 1396 mSDsluCounter, 1302 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 53 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1396 SdHoareTripleChecker+Valid, 3328 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-12-14 08:39:16,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1396 Valid, 3328 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 553 Invalid, 2 Unknown, 0 Unchecked, 8.6s Time] [2022-12-14 08:39:16,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14805 states. [2022-12-14 08:39:16,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14805 to 14779. [2022-12-14 08:39:16,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14779 states, 9846 states have (on average 1.3640056875888686) internal successors, (13430), 9956 states have internal predecessors, (13430), 3613 states have call successors, (3613), 1326 states have call predecessors, (3613), 1319 states have return successors, (3632), 3549 states have call predecessors, (3632), 3612 states have call successors, (3632) [2022-12-14 08:39:16,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14779 states to 14779 states and 20675 transitions. [2022-12-14 08:39:16,981 INFO L78 Accepts]: Start accepts. Automaton has 14779 states and 20675 transitions. Word has length 339 [2022-12-14 08:39:16,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:39:16,982 INFO L495 AbstractCegarLoop]: Abstraction has 14779 states and 20675 transitions. [2022-12-14 08:39:16,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-12-14 08:39:16,982 INFO L276 IsEmpty]: Start isEmpty. Operand 14779 states and 20675 transitions. [2022-12-14 08:39:16,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2022-12-14 08:39:16,989 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:39:16,989 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 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] [2022-12-14 08:39:16,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 08:39:16,989 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:39:16,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:39:16,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1816809265, now seen corresponding path program 1 times [2022-12-14 08:39:16,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:39:16,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683146603] [2022-12-14 08:39:16,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:39:16,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:39:17,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:39:17,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1563 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1560 trivial. 0 not checked. [2022-12-14 08:39:17,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:39:17,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683146603] [2022-12-14 08:39:17,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683146603] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:39:17,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:39:17,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:39:17,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513491617] [2022-12-14 08:39:17,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:39:17,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:39:17,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:39:17,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:39:17,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:39:17,866 INFO L87 Difference]: Start difference. First operand 14779 states and 20675 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-12-14 08:39:19,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:39:22,022 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 08:39:24,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:39:24,896 INFO L93 Difference]: Finished difference Result 34020 states and 47516 transitions. [2022-12-14 08:39:24,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:39:24,897 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 350 [2022-12-14 08:39:24,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:39:24,937 INFO L225 Difference]: With dead ends: 34020 [2022-12-14 08:39:24,937 INFO L226 Difference]: Without dead ends: 19303 [2022-12-14 08:39:24,957 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 08:39:24,958 INFO L413 NwaCegarLoop]: 2194 mSDtfsCounter, 1348 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1348 SdHoareTripleChecker+Valid, 3212 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-12-14 08:39:24,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1348 Valid, 3212 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 476 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2022-12-14 08:39:24,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19303 states. [2022-12-14 08:39:25,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19303 to 19296. [2022-12-14 08:39:25,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19296 states, 12980 states have (on average 1.3654083204930663) internal successors, (17723), 13118 states have internal predecessors, (17723), 4542 states have call successors, (4542), 1780 states have call predecessors, (4542), 1773 states have return successors, (4569), 4460 states have call predecessors, (4569), 4541 states have call successors, (4569) [2022-12-14 08:39:25,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19296 states to 19296 states and 26834 transitions. [2022-12-14 08:39:25,483 INFO L78 Accepts]: Start accepts. Automaton has 19296 states and 26834 transitions. Word has length 350 [2022-12-14 08:39:25,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:39:25,484 INFO L495 AbstractCegarLoop]: Abstraction has 19296 states and 26834 transitions. [2022-12-14 08:39:25,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-12-14 08:39:25,484 INFO L276 IsEmpty]: Start isEmpty. Operand 19296 states and 26834 transitions. [2022-12-14 08:39:25,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2022-12-14 08:39:25,494 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:39:25,494 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:39:25,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 08:39:25,495 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:39:25,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:39:25,495 INFO L85 PathProgramCache]: Analyzing trace with hash -2061144330, now seen corresponding path program 1 times [2022-12-14 08:39:25,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:39:25,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299896220] [2022-12-14 08:39:25,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:39:25,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:39:26,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:39:29,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 1405 trivial. 0 not checked. [2022-12-14 08:39:29,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:39:29,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299896220] [2022-12-14 08:39:29,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299896220] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:39:29,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186088693] [2022-12-14 08:39:29,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:39:29,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:39:29,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64229f4-c8a8-4361-9660-a95429b8496e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:39:29,271 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64229f4-c8a8-4361-9660-a95429b8496e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:39:29,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64229f4-c8a8-4361-9660-a95429b8496e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 08:39:31,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:39:31,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 10712 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 08:39:31,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:39:31,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1417 backedges. 294 proven. 0 refuted. 0 times theorem prover too weak. 1123 trivial. 0 not checked. [2022-12-14 08:39:31,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:39:31,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186088693] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:39:31,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 08:39:31,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2022-12-14 08:39:31,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68664913] [2022-12-14 08:39:31,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:39:31,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 08:39:31,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:39:31,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 08:39:31,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 08:39:31,191 INFO L87 Difference]: Start difference. First operand 19296 states and 26834 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-12-14 08:39:33,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:39:35,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:39:38,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:39:40,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:39:41,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:39:42,800 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:39:44,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:39:44,440 INFO L93 Difference]: Finished difference Result 36565 states and 50857 transitions. [2022-12-14 08:39:44,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 08:39:44,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 357 [2022-12-14 08:39:44,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:39:44,481 INFO L225 Difference]: With dead ends: 36565 [2022-12-14 08:39:44,481 INFO L226 Difference]: Without dead ends: 17287 [2022-12-14 08:39:44,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-12-14 08:39:44,513 INFO L413 NwaCegarLoop]: 1414 mSDtfsCounter, 5 mSDsluCounter, 4231 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5645 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-12-14 08:39:44,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5645 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 828 Invalid, 3 Unknown, 0 Unchecked, 12.7s Time] [2022-12-14 08:39:44,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17287 states. [2022-12-14 08:39:44,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17287 to 17281. [2022-12-14 08:39:45,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17281 states, 11621 states have (on average 1.3658893382669306) internal successors, (15873), 11748 states have internal predecessors, (15873), 4077 states have call successors, (4077), 1589 states have call predecessors, (4077), 1582 states have return successors, (4100), 4001 states have call predecessors, (4100), 4076 states have call successors, (4100) [2022-12-14 08:39:45,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17281 states to 17281 states and 24050 transitions. [2022-12-14 08:39:45,036 INFO L78 Accepts]: Start accepts. Automaton has 17281 states and 24050 transitions. Word has length 357 [2022-12-14 08:39:45,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:39:45,036 INFO L495 AbstractCegarLoop]: Abstraction has 17281 states and 24050 transitions. [2022-12-14 08:39:45,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 3 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-12-14 08:39:45,036 INFO L276 IsEmpty]: Start isEmpty. Operand 17281 states and 24050 transitions. [2022-12-14 08:39:45,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2022-12-14 08:39:45,042 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:39:45,042 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:39:45,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64229f4-c8a8-4361-9660-a95429b8496e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 08:39:45,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64229f4-c8a8-4361-9660-a95429b8496e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-14 08:39:45,245 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:39:45,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:39:45,246 INFO L85 PathProgramCache]: Analyzing trace with hash 492155134, now seen corresponding path program 1 times [2022-12-14 08:39:45,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:39:45,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609895574] [2022-12-14 08:39:45,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:39:45,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:39:45,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:39:46,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1571 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1565 trivial. 0 not checked. [2022-12-14 08:39:46,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:39:46,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609895574] [2022-12-14 08:39:46,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609895574] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:39:46,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:39:46,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 08:39:46,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097666049] [2022-12-14 08:39:46,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:39:46,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 08:39:46,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:39:46,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 08:39:46,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:39:46,810 INFO L87 Difference]: Start difference. First operand 17281 states and 24050 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-12-14 08:39:48,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:39:51,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:39:56,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:39:57,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:39:57,668 INFO L93 Difference]: Finished difference Result 38820 states and 54076 transitions. [2022-12-14 08:39:57,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 08:39:57,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 362 [2022-12-14 08:39:57,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:39:57,711 INFO L225 Difference]: With dead ends: 38820 [2022-12-14 08:39:57,711 INFO L226 Difference]: Without dead ends: 21601 [2022-12-14 08:39:57,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 08:39:57,737 INFO L413 NwaCegarLoop]: 2039 mSDtfsCounter, 1640 mSDsluCounter, 2139 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 21 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1714 SdHoareTripleChecker+Valid, 4178 SdHoareTripleChecker+Invalid, 1346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-12-14 08:39:57,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1714 Valid, 4178 Invalid, 1346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1323 Invalid, 2 Unknown, 0 Unchecked, 10.3s Time] [2022-12-14 08:39:57,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21601 states. [2022-12-14 08:39:58,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21601 to 21521. [2022-12-14 08:39:58,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21521 states, 14604 states have (on average 1.3693508627773212) internal successors, (19998), 14756 states have internal predecessors, (19998), 4954 states have call successors, (4954), 1969 states have call predecessors, (4954), 1962 states have return successors, (4985), 4863 states have call predecessors, (4985), 4953 states have call successors, (4985) [2022-12-14 08:39:58,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21521 states to 21521 states and 29937 transitions. [2022-12-14 08:39:58,289 INFO L78 Accepts]: Start accepts. Automaton has 21521 states and 29937 transitions. Word has length 362 [2022-12-14 08:39:58,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:39:58,289 INFO L495 AbstractCegarLoop]: Abstraction has 21521 states and 29937 transitions. [2022-12-14 08:39:58,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-12-14 08:39:58,289 INFO L276 IsEmpty]: Start isEmpty. Operand 21521 states and 29937 transitions. [2022-12-14 08:39:58,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2022-12-14 08:39:58,296 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:39:58,296 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:39:58,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 08:39:58,296 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:39:58,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:39:58,297 INFO L85 PathProgramCache]: Analyzing trace with hash 2108069373, now seen corresponding path program 1 times [2022-12-14 08:39:58,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:39:58,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083214693] [2022-12-14 08:39:58,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:39:58,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:39:59,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:40:01,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 1565 trivial. 0 not checked. [2022-12-14 08:40:01,886 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:40:01,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083214693] [2022-12-14 08:40:01,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083214693] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 08:40:01,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149387383] [2022-12-14 08:40:01,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:40:01,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 08:40:01,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64229f4-c8a8-4361-9660-a95429b8496e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:40:01,887 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64229f4-c8a8-4361-9660-a95429b8496e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 08:40:01,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a64229f4-c8a8-4361-9660-a95429b8496e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 08:40:05,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:40:05,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 10839 conjuncts, 31 conjunts are in the unsatisfiable core [2022-12-14 08:40:05,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:40:05,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 434 proven. 7 refuted. 0 times theorem prover too weak. 1136 trivial. 0 not checked. [2022-12-14 08:40:05,454 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 08:40:05,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1577 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 1565 trivial. 0 not checked. [2022-12-14 08:40:05,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149387383] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 08:40:05,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1568856420] [2022-12-14 08:40:05,956 INFO L159 IcfgInterpreter]: Started Sifa with 142 locations of interest [2022-12-14 08:40:05,956 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 08:40:05,960 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 08:40:05,964 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 08:40:05,965 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 08:40:30,219 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5151 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 511 [2022-12-14 08:40:32,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5151 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 511 [2022-12-14 08:40:33,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5151 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 511 [2022-12-14 08:40:36,554 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5151 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 511 [2022-12-14 08:40:38,190 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5151 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 511 [2022-12-14 08:40:41,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:40:42,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:40:43,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:40:43,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:40:43,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:40:43,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:40:43,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:40:43,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 08:40:46,642 INFO L217 Elim1Store]: Index analysis took 5750 ms