./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.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_17008ed7-3e71-40dc-b39d-3b2dceba8172/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17008ed7-3e71-40dc-b39d-3b2dceba8172/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_17008ed7-3e71-40dc-b39d-3b2dceba8172/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17008ed7-3e71-40dc-b39d-3b2dceba8172/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17008ed7-3e71-40dc-b39d-3b2dceba8172/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_17008ed7-3e71-40dc-b39d-3b2dceba8172/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 bf654a6a1eca45ac77a809162568fb8018795c05fa9eb6946186269d2e2c9c25 --- 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 05:45:03,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:45:03,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:45:03,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:45:03,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:45:03,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:45:03,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:45:03,307 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:45:03,308 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:45:03,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:45:03,310 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:45:03,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:45:03,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:45:03,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:45:03,313 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:45:03,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:45:03,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:45:03,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:45:03,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:45:03,319 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:45:03,321 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:45:03,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:45:03,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:45:03,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:45:03,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:45:03,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:45:03,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:45:03,329 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:45:03,330 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:45:03,331 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:45:03,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:45:03,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:45:03,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:45:03,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:45:03,334 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:45:03,334 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:45:03,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:45:03,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:45:03,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:45:03,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:45:03,337 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:45:03,338 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17008ed7-3e71-40dc-b39d-3b2dceba8172/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 05:45:03,357 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:45:03,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:45:03,358 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:45:03,358 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:45:03,359 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:45:03,359 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:45:03,359 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:45:03,359 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:45:03,359 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:45:03,359 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:45:03,360 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:45:03,360 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:45:03,360 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:45:03,360 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:45:03,360 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:45:03,361 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:45:03,361 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:45:03,361 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:45:03,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:45:03,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:45:03,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:45:03,362 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:45:03,362 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:45:03,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:45:03,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:45:03,363 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:45:03,363 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:45:03,363 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:45:03,363 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:45:03,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:45:03,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:45:03,364 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:45:03,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:45:03,364 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:45:03,365 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:45:03,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:45:03,365 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:45:03,365 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:45:03,365 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_17008ed7-3e71-40dc-b39d-3b2dceba8172/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17008ed7-3e71-40dc-b39d-3b2dceba8172/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf654a6a1eca45ac77a809162568fb8018795c05fa9eb6946186269d2e2c9c25 [2022-12-14 05:45:03,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:45:03,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:45:03,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:45:03,561 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:45:03,561 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:45:03,562 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17008ed7-3e71-40dc-b39d-3b2dceba8172/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2022-12-14 05:45:06,145 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:45:06,457 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:45:06,457 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17008ed7-3e71-40dc-b39d-3b2dceba8172/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2022-12-14 05:45:06,479 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17008ed7-3e71-40dc-b39d-3b2dceba8172/bin/utaipan-gh47qXpMRh/data/c48696320/c409f9392fa84288b595447989fb90ca/FLAGb18ccc2fc [2022-12-14 05:45:06,489 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17008ed7-3e71-40dc-b39d-3b2dceba8172/bin/utaipan-gh47qXpMRh/data/c48696320/c409f9392fa84288b595447989fb90ca [2022-12-14 05:45:06,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:45:06,492 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:45:06,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:45:06,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:45:06,496 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:45:06,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:45:06" (1/1) ... [2022-12-14 05:45:06,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@586f16c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:06, skipping insertion in model container [2022-12-14 05:45:06,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:45:06" (1/1) ... [2022-12-14 05:45:06,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:45:06,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:45:06,974 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 05:45:07,023 WARN L623 FunctionHandler]: Unknown extern function __xadd_wrong_size [2022-12-14 05:45:07,378 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 05:45:07,382 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 05:45:07,470 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 05:45:07,472 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 05:45:07,473 WARN L623 FunctionHandler]: Unknown extern function idr_find_slowpath [2022-12-14 05:45:07,482 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:45:07,555 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 05:45:07,561 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 05:45:07,593 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-14 05:45:07,999 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,000 WARN L623 FunctionHandler]: Unknown extern function idr_alloc [2022-12-14 05:45:08,000 WARN L623 FunctionHandler]: Unknown extern function idr_remove [2022-12-14 05:45:08,004 WARN L623 FunctionHandler]: Unknown extern function idr_remove [2022-12-14 05:45:08,010 WARN L623 FunctionHandler]: Unknown extern function put_device [2022-12-14 05:45:08,011 WARN L623 FunctionHandler]: Unknown extern function usb_put_intf [2022-12-14 05:45:08,011 WARN L623 FunctionHandler]: Unknown extern function usb_put_dev [2022-12-14 05:45:08,011 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:45:08,016 WARN L623 FunctionHandler]: Unknown extern function try_module_get [2022-12-14 05:45:08,016 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-12-14 05:45:08,017 WARN L623 FunctionHandler]: Unknown extern function tty_port_install [2022-12-14 05:45:08,018 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 05:45:08,018 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 05:45:08,028 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,028 WARN L623 FunctionHandler]: Unknown extern function tty_port_open [2022-12-14 05:45:08,038 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,039 WARN L623 FunctionHandler]: Unknown extern function tty_port_hangup [2022-12-14 05:45:08,044 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,051 WARN L623 FunctionHandler]: Unknown extern function tty_port_close [2022-12-14 05:45:08,058 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,060 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 05:45:08,061 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 05:45:08,067 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,075 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,082 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,090 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,099 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,107 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,114 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,122 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,123 WARN L623 FunctionHandler]: Unknown extern function tty_termios_copy_hw [2022-12-14 05:45:08,130 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,136 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 05:45:08,137 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 05:45:08,138 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 05:45:08,139 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 05:45:08,139 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 05:45:08,139 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 05:45:08,140 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 05:45:08,140 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 05:45:08,141 WARN L623 FunctionHandler]: Unknown extern function seq_putc [2022-12-14 05:45:08,146 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-12-14 05:45:08,152 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,160 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,166 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,174 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_wakeup [2022-12-14 05:45:08,178 WARN L623 FunctionHandler]: Unknown extern function usb_poison_urb [2022-12-14 05:45:08,179 WARN L623 FunctionHandler]: Unknown extern function usb_poison_urb [2022-12-14 05:45:08,179 WARN L623 FunctionHandler]: Unknown extern function usb_poison_urb [2022-12-14 05:45:08,179 WARN L623 FunctionHandler]: Unknown extern function usb_poison_urb [2022-12-14 05:45:08,184 WARN L623 FunctionHandler]: Unknown extern function usb_unpoison_urb [2022-12-14 05:45:08,185 WARN L623 FunctionHandler]: Unknown extern function usb_unpoison_urb [2022-12-14 05:45:08,185 WARN L623 FunctionHandler]: Unknown extern function usb_unpoison_urb [2022-12-14 05:45:08,185 WARN L623 FunctionHandler]: Unknown extern function usb_unpoison_urb [2022-12-14 05:45:08,191 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,192 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 05:45:08,192 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 05:45:08,192 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 05:45:08,193 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:45:08,193 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 05:45:08,193 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:45:08,194 WARN L623 FunctionHandler]: Unknown extern function __kfifo_free [2022-12-14 05:45:08,194 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:45:08,194 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:45:08,195 WARN L623 FunctionHandler]: Unknown extern function tty_port_destroy [2022-12-14 05:45:08,195 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:45:08,200 WARN L623 FunctionHandler]: Unknown extern function usb_get_dev [2022-12-14 05:45:08,200 WARN L623 FunctionHandler]: Unknown extern function usb_get_intf [2022-12-14 05:45:08,201 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 05:45:08,206 WARN L623 FunctionHandler]: Unknown extern function usb_match_one_id [2022-12-14 05:45:08,211 WARN L623 FunctionHandler]: Unknown extern function usb_match_id [2022-12-14 05:45:08,213 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,214 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,233 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 05:45:08,240 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,240 WARN L623 FunctionHandler]: Unknown extern function try_module_get [2022-12-14 05:45:08,240 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 05:45:08,241 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 05:45:08,242 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,242 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 05:45:08,243 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,245 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,246 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,247 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,249 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,249 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 05:45:08,250 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 05:45:08,250 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 05:45:08,250 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 05:45:08,251 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 05:45:08,251 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 05:45:08,251 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 05:45:08,252 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 05:45:08,253 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,254 WARN L623 FunctionHandler]: Unknown extern function tty_port_init [2022-12-14 05:45:08,254 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 05:45:08,254 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 05:45:08,255 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 05:45:08,255 WARN L623 FunctionHandler]: Unknown extern function device_initialize [2022-12-14 05:45:08,257 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 05:45:08,258 WARN L623 FunctionHandler]: Unknown extern function __kfifo_alloc [2022-12-14 05:45:08,259 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 05:45:08,260 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 05:45:08,262 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,262 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 05:45:08,264 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,265 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 05:45:08,265 WARN L623 FunctionHandler]: Unknown extern function dev_set_name [2022-12-14 05:45:08,266 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,266 WARN L623 FunctionHandler]: Unknown extern function device_add [2022-12-14 05:45:08,266 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 05:45:08,267 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 05:45:08,267 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 05:45:08,271 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_get [2022-12-14 05:45:08,272 WARN L623 FunctionHandler]: Unknown extern function tty_vhangup [2022-12-14 05:45:08,272 WARN L623 FunctionHandler]: Unknown extern function tty_kref_put [2022-12-14 05:45:08,272 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 05:45:08,272 WARN L623 FunctionHandler]: Unknown extern function device_del [2022-12-14 05:45:08,273 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 05:45:08,289 WARN L623 FunctionHandler]: Unknown extern function bus_register [2022-12-14 05:45:08,289 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:45:08,291 WARN L623 FunctionHandler]: Unknown extern function tty_set_operations [2022-12-14 05:45:08,291 WARN L623 FunctionHandler]: Unknown extern function tty_register_driver [2022-12-14 05:45:08,291 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:45:08,292 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:45:08,293 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:45:08,293 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_driver [2022-12-14 05:45:08,293 WARN L623 FunctionHandler]: Unknown extern function bus_unregister [2022-12-14 05:45:08,293 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:45:08,294 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-12-14 05:45:08,298 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_driver [2022-12-14 05:45:08,298 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-12-14 05:45:08,299 WARN L623 FunctionHandler]: Unknown extern function bus_unregister [2022-12-14 05:45:08,304 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 05:45:08,305 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 05:45:08,306 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 05:45:08,307 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 05:45:08,308 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 05:45:08,310 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 05:45:08,311 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 05:45:08,312 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 05:45:08,313 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 05:45:08,314 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 05:45:08,317 WARN L623 FunctionHandler]: Unknown extern function usb_disabled [2022-12-14 05:45:08,318 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 05:45:08,319 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:45:08,319 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 05:45:08,320 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:45:08,323 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:45:08,324 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 05:45:08,326 WARN L623 FunctionHandler]: Unknown extern function driver_attach [2022-12-14 05:45:08,327 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:45:08,340 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:45:08,355 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 05:45:08,359 WARN L623 FunctionHandler]: Unknown extern function ldv_destruct_7 [2022-12-14 05:45:08,360 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-12-14 05:45:08,360 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 05:45:08,360 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 05:45:08,363 WARN L623 FunctionHandler]: Unknown extern function ldv_reset_resume_5 [2022-12-14 05:45:08,364 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 05:45:08,364 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 05:45:08,364 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 05:45:08,364 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 05:45:08,365 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 05:45:08,365 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,365 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:08,365 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:08,366 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,366 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:08,366 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 05:45:08,366 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,366 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:08,367 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:08,367 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,367 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,367 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:08,367 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,367 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,368 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:08,368 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,368 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,368 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,368 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:08,368 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,369 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:08,369 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,369 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:08,369 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,369 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,370 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:08,370 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,370 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,370 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,370 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:08,370 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,371 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 05:45:08,371 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 05:45:08,371 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 05:45:08,371 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 05:45:08,372 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:08,372 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,372 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:08,372 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,372 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 05:45:08,373 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 05:45:08,373 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 05:45:08,407 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 05:45:08,446 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 05:45:08,449 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 05:45:08,452 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 05:45:08,504 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-14 05:45:08,520 WARN L623 FunctionHandler]: Unknown extern function tty_insert_flip_string_flags [2022-12-14 05:45:08,524 WARN L623 FunctionHandler]: Unknown extern function tty_insert_flip_string_fixed_flag [2022-12-14 05:45:08,569 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,571 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:08,572 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 05:45:08,573 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:08,573 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 05:45:08,574 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:08,574 WARN L623 FunctionHandler]: Unknown extern function __kfifo_out_r [2022-12-14 05:45:08,574 WARN L623 FunctionHandler]: Unknown extern function __kfifo_out [2022-12-14 05:45:08,575 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:08,576 WARN L623 FunctionHandler]: Unknown extern function find_first_bit [2022-12-14 05:45:08,577 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:08,577 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 05:45:08,577 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 05:45:08,578 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:08,579 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:08,579 WARN L623 FunctionHandler]: Unknown extern function __kfifo_in_r [2022-12-14 05:45:08,580 WARN L623 FunctionHandler]: Unknown extern function __kfifo_in [2022-12-14 05:45:08,581 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:08,581 WARN L623 FunctionHandler]: Unknown extern function __kfifo_max_r [2022-12-14 05:45:08,582 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,582 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:08,583 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,585 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 05:45:08,585 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 05:45:08,585 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,585 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 05:45:08,590 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,590 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 05:45:08,591 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 05:45:08,591 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 05:45:08,593 WARN L623 FunctionHandler]: Unknown extern function tty_flip_buffer_push [2022-12-14 05:45:08,595 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,596 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,596 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 05:45:08,597 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,598 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:08,599 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:08,600 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,601 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 05:45:08,602 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 05:45:08,603 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:08,608 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:08,610 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:08,610 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 05:45:08,611 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 05:45:08,611 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 05:45:08,611 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 05:45:08,613 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:08,615 WARN L623 FunctionHandler]: Unknown extern function handle_sysrq [2022-12-14 05:45:08,617 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:08,617 WARN L623 FunctionHandler]: Unknown extern function tty_ldisc_ref [2022-12-14 05:45:08,618 WARN L623 FunctionHandler]: Unknown extern function tty_ldisc_deref [2022-12-14 05:45:08,618 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 05:45:08,619 WARN L623 FunctionHandler]: Unknown extern function tty_hangup [2022-12-14 05:45:08,638 WARN L623 FunctionHandler]: Unknown extern function ldv_suspend_4 [2022-12-14 05:45:08,639 WARN L623 FunctionHandler]: Unknown extern function ldv_release_4 [2022-12-14 05:45:08,639 WARN L623 FunctionHandler]: Unknown extern function ldv_release_4 [2022-12-14 05:45:08,639 WARN L623 FunctionHandler]: Unknown extern function ldv_probe_4 [2022-12-14 05:45:08,639 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 05:45:08,640 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 05:45:08,640 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 05:45:08,640 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 05:45:08,641 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 05:45:08,641 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,641 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:08,641 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:08,641 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,642 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:08,642 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 05:45:08,642 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,707 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-12-14 05:45:08,708 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 05:45:08,708 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 05:45:08,708 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 05:45:08,712 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-12-14 05:45:08,712 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 05:45:08,713 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 05:45:08,717 WARN L623 FunctionHandler]: Unknown extern function usb_store_new_id [2022-12-14 05:45:08,717 WARN L623 FunctionHandler]: Unknown extern function usb_store_new_id [2022-12-14 05:45:08,722 WARN L623 FunctionHandler]: Unknown extern function usb_show_dynids [2022-12-14 05:45:08,727 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 05:45:08,728 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:45:08,729 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 05:45:08,729 WARN L623 FunctionHandler]: Unknown extern function driver_register [2022-12-14 05:45:08,730 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-12-14 05:45:08,732 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 05:45:08,732 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 05:45:08,733 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 05:45:08,733 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 05:45:08,733 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 05:45:08,734 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,734 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:08,734 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:08,734 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,734 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:08,735 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 05:45:08,735 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:08,735 WARN L623 FunctionHandler]: Unknown extern function tty_register_device [2022-12-14 05:45:08,736 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_device [2022-12-14 05:45:08,740 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_17008ed7-3e71-40dc-b39d-3b2dceba8172/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[323188,323201] [2022-12-14 05:45:08,907 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:45:08,911 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:45:08,915 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:45:08,916 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:45:08,916 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:45:08,917 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:45:08,917 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:45:08,917 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:45:08,918 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:45:08,923 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:45:08,995 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:45:09,073 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 05:45:09,075 WARN L623 FunctionHandler]: Unknown extern function __xadd_wrong_size [2022-12-14 05:45:09,077 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-12-14 05:45:09,077 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-12-14 05:45:09,079 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 05:45:09,080 WARN L623 FunctionHandler]: Unknown extern function debug_lockdep_rcu_enabled [2022-12-14 05:45:09,080 WARN L623 FunctionHandler]: Unknown extern function idr_find_slowpath [2022-12-14 05:45:09,080 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:45:09,082 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 05:45:09,083 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 05:45:09,084 WARN L623 FunctionHandler]: Unknown extern function __tty_alloc_driver [2022-12-14 05:45:09,110 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,111 WARN L623 FunctionHandler]: Unknown extern function idr_alloc [2022-12-14 05:45:09,112 WARN L623 FunctionHandler]: Unknown extern function idr_remove [2022-12-14 05:45:09,113 WARN L623 FunctionHandler]: Unknown extern function idr_remove [2022-12-14 05:45:09,118 WARN L623 FunctionHandler]: Unknown extern function put_device [2022-12-14 05:45:09,118 WARN L623 FunctionHandler]: Unknown extern function usb_put_intf [2022-12-14 05:45:09,119 WARN L623 FunctionHandler]: Unknown extern function usb_put_dev [2022-12-14 05:45:09,119 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:45:09,122 WARN L623 FunctionHandler]: Unknown extern function try_module_get [2022-12-14 05:45:09,123 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-12-14 05:45:09,123 WARN L623 FunctionHandler]: Unknown extern function tty_port_install [2022-12-14 05:45:09,126 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 05:45:09,126 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 05:45:09,134 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,136 WARN L623 FunctionHandler]: Unknown extern function tty_port_open [2022-12-14 05:45:09,140 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,142 WARN L623 FunctionHandler]: Unknown extern function tty_port_hangup [2022-12-14 05:45:09,143 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,145 WARN L623 FunctionHandler]: Unknown extern function tty_port_close [2022-12-14 05:45:09,146 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,151 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 05:45:09,151 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 05:45:09,153 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,159 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,164 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,169 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,172 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,175 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,179 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,184 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,187 WARN L623 FunctionHandler]: Unknown extern function tty_termios_copy_hw [2022-12-14 05:45:09,189 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,191 WARN L623 FunctionHandler]: Unknown extern function seq_puts [2022-12-14 05:45:09,193 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 05:45:09,194 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 05:45:09,195 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 05:45:09,195 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 05:45:09,195 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 05:45:09,195 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 05:45:09,196 WARN L623 FunctionHandler]: Unknown extern function seq_printf [2022-12-14 05:45:09,196 WARN L623 FunctionHandler]: Unknown extern function seq_putc [2022-12-14 05:45:09,196 WARN L623 FunctionHandler]: Unknown extern function single_open [2022-12-14 05:45:09,198 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,213 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,218 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,224 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_wakeup [2022-12-14 05:45:09,224 WARN L623 FunctionHandler]: Unknown extern function usb_poison_urb [2022-12-14 05:45:09,224 WARN L623 FunctionHandler]: Unknown extern function usb_poison_urb [2022-12-14 05:45:09,225 WARN L623 FunctionHandler]: Unknown extern function usb_poison_urb [2022-12-14 05:45:09,225 WARN L623 FunctionHandler]: Unknown extern function usb_poison_urb [2022-12-14 05:45:09,225 WARN L623 FunctionHandler]: Unknown extern function usb_unpoison_urb [2022-12-14 05:45:09,225 WARN L623 FunctionHandler]: Unknown extern function usb_unpoison_urb [2022-12-14 05:45:09,226 WARN L623 FunctionHandler]: Unknown extern function usb_unpoison_urb [2022-12-14 05:45:09,226 WARN L623 FunctionHandler]: Unknown extern function usb_unpoison_urb [2022-12-14 05:45:09,227 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,227 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 05:45:09,228 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 05:45:09,228 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 05:45:09,228 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:45:09,228 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 05:45:09,229 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:45:09,229 WARN L623 FunctionHandler]: Unknown extern function __kfifo_free [2022-12-14 05:45:09,229 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:45:09,229 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:45:09,229 WARN L623 FunctionHandler]: Unknown extern function tty_port_destroy [2022-12-14 05:45:09,229 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:45:09,230 WARN L623 FunctionHandler]: Unknown extern function usb_get_dev [2022-12-14 05:45:09,232 WARN L623 FunctionHandler]: Unknown extern function usb_get_intf [2022-12-14 05:45:09,232 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 05:45:09,233 WARN L623 FunctionHandler]: Unknown extern function usb_match_one_id [2022-12-14 05:45:09,234 WARN L623 FunctionHandler]: Unknown extern function usb_match_id [2022-12-14 05:45:09,235 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,235 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,246 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-12-14 05:45:09,249 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,249 WARN L623 FunctionHandler]: Unknown extern function try_module_get [2022-12-14 05:45:09,249 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 05:45:09,250 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 05:45:09,250 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,251 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 05:45:09,251 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,252 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,253 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,253 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,255 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,255 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 05:45:09,256 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 05:45:09,256 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 05:45:09,256 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 05:45:09,256 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 05:45:09,257 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 05:45:09,257 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 05:45:09,257 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 05:45:09,258 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,259 WARN L623 FunctionHandler]: Unknown extern function tty_port_init [2022-12-14 05:45:09,260 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 05:45:09,260 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-12-14 05:45:09,260 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-12-14 05:45:09,262 WARN L623 FunctionHandler]: Unknown extern function device_initialize [2022-12-14 05:45:09,263 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 05:45:09,265 WARN L623 FunctionHandler]: Unknown extern function __kfifo_alloc [2022-12-14 05:45:09,266 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 05:45:09,268 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 05:45:09,270 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,270 WARN L623 FunctionHandler]: Unknown extern function usb_alloc_urb [2022-12-14 05:45:09,273 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,273 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 05:45:09,273 WARN L623 FunctionHandler]: Unknown extern function dev_set_name [2022-12-14 05:45:09,274 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,274 WARN L623 FunctionHandler]: Unknown extern function device_add [2022-12-14 05:45:09,274 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 05:45:09,275 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 05:45:09,275 WARN L623 FunctionHandler]: Unknown extern function module_put [2022-12-14 05:45:09,277 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_get [2022-12-14 05:45:09,277 WARN L623 FunctionHandler]: Unknown extern function tty_vhangup [2022-12-14 05:45:09,277 WARN L623 FunctionHandler]: Unknown extern function tty_kref_put [2022-12-14 05:45:09,277 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 05:45:09,277 WARN L623 FunctionHandler]: Unknown extern function device_del [2022-12-14 05:45:09,279 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 05:45:09,286 WARN L623 FunctionHandler]: Unknown extern function bus_register [2022-12-14 05:45:09,286 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:45:09,288 WARN L623 FunctionHandler]: Unknown extern function tty_set_operations [2022-12-14 05:45:09,288 WARN L623 FunctionHandler]: Unknown extern function tty_register_driver [2022-12-14 05:45:09,288 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:45:09,288 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:45:09,289 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:45:09,289 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_driver [2022-12-14 05:45:09,289 WARN L623 FunctionHandler]: Unknown extern function bus_unregister [2022-12-14 05:45:09,289 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:45:09,289 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-12-14 05:45:09,290 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_driver [2022-12-14 05:45:09,290 WARN L623 FunctionHandler]: Unknown extern function put_tty_driver [2022-12-14 05:45:09,290 WARN L623 FunctionHandler]: Unknown extern function bus_unregister [2022-12-14 05:45:09,292 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 05:45:09,293 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 05:45:09,293 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 05:45:09,294 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 05:45:09,295 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 05:45:09,295 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 05:45:09,296 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 05:45:09,297 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 05:45:09,297 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 05:45:09,298 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 05:45:09,299 WARN L623 FunctionHandler]: Unknown extern function usb_disabled [2022-12-14 05:45:09,299 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-12-14 05:45:09,300 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:45:09,300 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 05:45:09,300 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:45:09,300 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 05:45:09,300 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 05:45:09,302 WARN L623 FunctionHandler]: Unknown extern function driver_attach [2022-12-14 05:45:09,303 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:45:09,304 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:45:09,308 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 05:45:09,312 WARN L623 FunctionHandler]: Unknown extern function ldv_destruct_7 [2022-12-14 05:45:09,312 WARN L623 FunctionHandler]: Unknown extern function single_release [2022-12-14 05:45:09,312 WARN L623 FunctionHandler]: Unknown extern function seq_read [2022-12-14 05:45:09,313 WARN L623 FunctionHandler]: Unknown extern function seq_lseek [2022-12-14 05:45:09,314 WARN L623 FunctionHandler]: Unknown extern function ldv_reset_resume_5 [2022-12-14 05:45:09,316 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 05:45:09,316 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 05:45:09,317 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 05:45:09,317 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 05:45:09,317 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 05:45:09,317 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,318 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:09,318 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:09,318 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,318 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:09,318 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 05:45:09,318 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,319 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:09,319 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:09,319 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,319 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,319 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:09,319 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,320 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,320 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:09,320 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,320 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,320 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,320 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:09,320 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,321 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:09,321 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,321 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:09,321 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,321 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,321 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:09,322 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,322 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,322 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,322 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:09,322 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,323 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-12-14 05:45:09,323 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 05:45:09,323 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 05:45:09,323 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 05:45:09,323 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:09,324 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,324 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:09,324 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,324 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 05:45:09,325 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 05:45:09,325 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 05:45:09,326 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 05:45:09,327 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-12-14 05:45:09,327 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-12-14 05:45:09,327 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 05:45:09,329 WARN L623 FunctionHandler]: Unknown extern function tty_termios_baud_rate [2022-12-14 05:45:09,330 WARN L623 FunctionHandler]: Unknown extern function tty_insert_flip_string_flags [2022-12-14 05:45:09,330 WARN L623 FunctionHandler]: Unknown extern function tty_insert_flip_string_fixed_flag [2022-12-14 05:45:09,331 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,333 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:09,334 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 05:45:09,334 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:09,334 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 05:45:09,335 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:09,335 WARN L623 FunctionHandler]: Unknown extern function __kfifo_out_r [2022-12-14 05:45:09,336 WARN L623 FunctionHandler]: Unknown extern function __kfifo_out [2022-12-14 05:45:09,336 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:09,337 WARN L623 FunctionHandler]: Unknown extern function find_first_bit [2022-12-14 05:45:09,343 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:09,344 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 05:45:09,344 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 05:45:09,344 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:09,345 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:09,346 WARN L623 FunctionHandler]: Unknown extern function __kfifo_in_r [2022-12-14 05:45:09,346 WARN L623 FunctionHandler]: Unknown extern function __kfifo_in [2022-12-14 05:45:09,347 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:09,347 WARN L623 FunctionHandler]: Unknown extern function __kfifo_max_r [2022-12-14 05:45:09,348 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,349 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:09,349 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,351 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 05:45:09,351 WARN L623 FunctionHandler]: Unknown extern function jiffies_to_msecs [2022-12-14 05:45:09,351 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,351 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout_interruptible [2022-12-14 05:45:09,354 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,354 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 05:45:09,354 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 05:45:09,355 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 05:45:09,356 WARN L623 FunctionHandler]: Unknown extern function tty_flip_buffer_push [2022-12-14 05:45:09,358 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,358 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,359 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 05:45:09,359 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,360 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:09,362 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:09,362 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,363 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 05:45:09,363 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 05:45:09,364 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:09,365 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:09,367 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:09,367 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-12-14 05:45:09,368 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 05:45:09,368 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 05:45:09,368 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 05:45:09,369 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-12-14 05:45:09,371 WARN L623 FunctionHandler]: Unknown extern function handle_sysrq [2022-12-14 05:45:09,372 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-12-14 05:45:09,372 WARN L623 FunctionHandler]: Unknown extern function tty_ldisc_ref [2022-12-14 05:45:09,374 WARN L623 FunctionHandler]: Unknown extern function tty_ldisc_deref [2022-12-14 05:45:09,374 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-12-14 05:45:09,375 WARN L623 FunctionHandler]: Unknown extern function tty_hangup [2022-12-14 05:45:09,377 WARN L623 FunctionHandler]: Unknown extern function ldv_suspend_4 [2022-12-14 05:45:09,377 WARN L623 FunctionHandler]: Unknown extern function ldv_release_4 [2022-12-14 05:45:09,377 WARN L623 FunctionHandler]: Unknown extern function ldv_release_4 [2022-12-14 05:45:09,377 WARN L623 FunctionHandler]: Unknown extern function ldv_probe_4 [2022-12-14 05:45:09,378 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 05:45:09,378 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 05:45:09,378 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 05:45:09,379 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 05:45:09,379 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 05:45:09,379 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,379 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:09,379 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:09,380 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,380 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:09,380 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 05:45:09,380 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,382 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-12-14 05:45:09,385 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 05:45:09,386 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 05:45:09,387 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 05:45:09,388 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-12-14 05:45:09,391 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 05:45:09,392 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-12-14 05:45:09,393 WARN L623 FunctionHandler]: Unknown extern function usb_store_new_id [2022-12-14 05:45:09,393 WARN L623 FunctionHandler]: Unknown extern function usb_store_new_id [2022-12-14 05:45:09,394 WARN L623 FunctionHandler]: Unknown extern function usb_show_dynids [2022-12-14 05:45:09,395 WARN L623 FunctionHandler]: Unknown extern function list_del [2022-12-14 05:45:09,395 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 05:45:09,396 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 05:45:09,396 WARN L623 FunctionHandler]: Unknown extern function driver_register [2022-12-14 05:45:09,396 WARN L623 FunctionHandler]: Unknown extern function driver_unregister [2022-12-14 05:45:09,398 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 05:45:09,398 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 05:45:09,399 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-12-14 05:45:09,399 WARN L623 FunctionHandler]: Unknown extern function flush_workqueue [2022-12-14 05:45:09,399 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-12-14 05:45:09,400 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,400 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:09,400 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:09,400 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,400 WARN L623 FunctionHandler]: Unknown extern function mutex_lock [2022-12-14 05:45:09,400 WARN L623 FunctionHandler]: Unknown extern function mutex_trylock [2022-12-14 05:45:09,401 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 05:45:09,401 WARN L623 FunctionHandler]: Unknown extern function tty_register_device [2022-12-14 05:45:09,402 WARN L623 FunctionHandler]: Unknown extern function tty_unregister_device [2022-12-14 05:45:09,402 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_17008ed7-3e71-40dc-b39d-3b2dceba8172/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[323188,323201] [2022-12-14 05:45:09,410 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:45:09,411 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:45:09,413 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:45:09,414 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:45:09,414 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:45:09,414 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:45:09,415 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:45:09,415 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:45:09,415 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-12-14 05:45:09,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:45:09,527 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:45:09,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:09 WrapperNode [2022-12-14 05:45:09,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:45:09,528 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:45:09,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:45:09,528 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:45:09,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:09" (1/1) ... [2022-12-14 05:45:09,594 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:09" (1/1) ... [2022-12-14 05:45:09,750 INFO L138 Inliner]: procedures = 481, calls = 4104, calls flagged for inlining = 211, calls inlined = 204, statements flattened = 8067 [2022-12-14 05:45:09,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:45:09,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:45:09,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:45:09,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:45:09,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:09" (1/1) ... [2022-12-14 05:45:09,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:09" (1/1) ... [2022-12-14 05:45:09,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:09" (1/1) ... [2022-12-14 05:45:09,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:09" (1/1) ... [2022-12-14 05:45:09,925 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:09" (1/1) ... [2022-12-14 05:45:09,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:09" (1/1) ... [2022-12-14 05:45:10,005 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:09" (1/1) ... [2022-12-14 05:45:10,029 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:09" (1/1) ... [2022-12-14 05:45:10,088 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:45:10,089 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:45:10,089 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:45:10,089 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:45:10,090 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:09" (1/1) ... [2022-12-14 05:45:10,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:45:10,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17008ed7-3e71-40dc-b39d-3b2dceba8172/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:45:10,116 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17008ed7-3e71-40dc-b39d-3b2dceba8172/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:45:10,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17008ed7-3e71-40dc-b39d-3b2dceba8172/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:45:10,146 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2022-12-14 05:45:10,146 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2022-12-14 05:45:10,146 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2022-12-14 05:45:10,146 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2022-12-14 05:45:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-12-14 05:45:10,147 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-12-14 05:45:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 05:45:10,147 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 05:45:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2022-12-14 05:45:10,147 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2022-12-14 05:45:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2022-12-14 05:45:10,147 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2022-12-14 05:45:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2022-12-14 05:45:10,147 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2022-12-14 05:45:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-12-14 05:45:10,147 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-12-14 05:45:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2022-12-14 05:45:10,147 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2022-12-14 05:45:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 05:45:10,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 05:45:10,148 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2022-12-14 05:45:10,148 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2022-12-14 05:45:10,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_5 [2022-12-14 05:45:10,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_5 [2022-12-14 05:45:10,148 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2022-12-14 05:45:10,148 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2022-12-14 05:45:10,148 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2022-12-14 05:45:10,148 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2022-12-14 05:45:10,148 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-12-14 05:45:10,148 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-12-14 05:45:10,148 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2022-12-14 05:45:10,148 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2022-12-14 05:45:10,148 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister_drivers [2022-12-14 05:45:10,148 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister_drivers [2022-12-14 05:45:10,148 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2022-12-14 05:45:10,149 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2022-12-14 05:45:10,149 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-12-14 05:45:10,149 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-12-14 05:45:10,149 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_work [2022-12-14 05:45:10,149 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_work [2022-12-14 05:45:10,149 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-12-14 05:45:10,149 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-12-14 05:45:10,149 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2022-12-14 05:45:10,149 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2022-12-14 05:45:10,149 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2022-12-14 05:45:10,149 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2022-12-14 05:45:10,149 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2022-12-14 05:45:10,149 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2022-12-14 05:45:10,149 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2022-12-14 05:45:10,149 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2022-12-14 05:45:10,150 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-12-14 05:45:10,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-12-14 05:45:10,150 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-14 05:45:10,150 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-14 05:45:10,150 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2022-12-14 05:45:10,150 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2022-12-14 05:45:10,150 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2022-12-14 05:45:10,150 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2022-12-14 05:45:10,150 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-12-14 05:45:10,150 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2022-12-14 05:45:10,150 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2022-12-14 05:45:10,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 05:45:10,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 05:45:10,150 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-12-14 05:45:10,150 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-12-14 05:45:10,151 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2022-12-14 05:45:10,151 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2022-12-14 05:45:10,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 05:45:10,151 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-12-14 05:45:10,151 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-12-14 05:45:10,151 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-12-14 05:45:10,151 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-12-14 05:45:10,151 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2022-12-14 05:45:10,151 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2022-12-14 05:45:10,151 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-14 05:45:10,151 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-14 05:45:10,151 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2022-12-14 05:45:10,151 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2022-12-14 05:45:10,151 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2022-12-14 05:45:10,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2022-12-14 05:45:10,151 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-12-14 05:45:10,152 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-12-14 05:45:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 05:45:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2022-12-14 05:45:10,152 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2022-12-14 05:45:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-12-14 05:45:10,152 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-12-14 05:45:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 05:45:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2022-12-14 05:45:10,152 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2022-12-14 05:45:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2022-12-14 05:45:10,152 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2022-12-14 05:45:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-12-14 05:45:10,152 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-12-14 05:45:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 05:45:10,152 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-12-14 05:45:10,152 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-12-14 05:45:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2022-12-14 05:45:10,153 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2022-12-14 05:45:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2022-12-14 05:45:10,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2022-12-14 05:45:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-12-14 05:45:10,153 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-12-14 05:45:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-12-14 05:45:10,153 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-12-14 05:45:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-12-14 05:45:10,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-12-14 05:45:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 05:45:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:45:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 05:45:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 05:45:10,153 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 05:45:10,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-12-14 05:45:10,154 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 05:45:10,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 05:45:10,154 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2022-12-14 05:45:10,154 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2022-12-14 05:45:10,154 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-12-14 05:45:10,154 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-12-14 05:45:10,154 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2022-12-14 05:45:10,154 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2022-12-14 05:45:10,154 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 05:45:10,154 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 05:45:10,154 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2022-12-14 05:45:10,154 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2022-12-14 05:45:10,154 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-12-14 05:45:10,154 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-12-14 05:45:10,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:45:10,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:45:10,155 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2022-12-14 05:45:10,155 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2022-12-14 05:45:10,155 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-12-14 05:45:10,155 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-12-14 05:45:10,155 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2022-12-14 05:45:10,155 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2022-12-14 05:45:10,155 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2022-12-14 05:45:10,155 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2022-12-14 05:45:10,155 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-12-14 05:45:10,155 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-12-14 05:45:10,155 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-12-14 05:45:10,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-12-14 05:45:10,155 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-12-14 05:45:10,155 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-12-14 05:45:10,156 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2022-12-14 05:45:10,156 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2022-12-14 05:45:10,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 05:45:10,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 05:45:10,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 05:45:10,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 05:45:10,156 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_show [2022-12-14 05:45:10,156 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_show [2022-12-14 05:45:10,156 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2022-12-14 05:45:10,156 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2022-12-14 05:45:10,156 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2022-12-14 05:45:10,156 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2022-12-14 05:45:10,156 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-12-14 05:45:10,156 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-12-14 05:45:10,156 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-12-14 05:45:10,156 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-12-14 05:45:10,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-12-14 05:45:10,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-12-14 05:45:10,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2022-12-14 05:45:10,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2022-12-14 05:45:10,157 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2022-12-14 05:45:10,157 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2022-12-14 05:45:10,157 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_msr_changed [2022-12-14 05:45:10,157 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_msr_changed [2022-12-14 05:45:10,157 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2022-12-14 05:45:10,157 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2022-12-14 05:45:10,157 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-14 05:45:10,157 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-14 05:45:10,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_disc_mutex_of_usb_serial [2022-12-14 05:45:10,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_disc_mutex_of_usb_serial [2022-12-14 05:45:10,157 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_store [2022-12-14 05:45:10,157 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_store [2022-12-14 05:45:10,158 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-12-14 05:45:10,158 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-12-14 05:45:10,158 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2022-12-14 05:45:10,158 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2022-12-14 05:45:10,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 05:45:10,158 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 05:45:10,158 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 05:45:10,158 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2022-12-14 05:45:10,158 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2022-12-14 05:45:10,158 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2022-12-14 05:45:10,158 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2022-12-14 05:45:10,158 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-12-14 05:45:10,158 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-12-14 05:45:10,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 05:45:10,158 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-12-14 05:45:10,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-12-14 05:45:10,159 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2022-12-14 05:45:10,159 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2022-12-14 05:45:10,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 05:45:10,159 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2022-12-14 05:45:10,159 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2022-12-14 05:45:10,159 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-12-14 05:45:10,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2022-12-14 05:45:10,159 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2022-12-14 05:45:10,159 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2022-12-14 05:45:10,159 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 05:45:10,159 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 05:45:10,159 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2022-12-14 05:45:10,159 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2022-12-14 05:45:10,159 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-12-14 05:45:10,159 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-12-14 05:45:10,159 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-12-14 05:45:10,160 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-12-14 05:45:10,160 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_softint [2022-12-14 05:45:10,160 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_softint [2022-12-14 05:45:10,160 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2022-12-14 05:45:10,160 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2022-12-14 05:45:10,160 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-12-14 05:45:10,160 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-12-14 05:45:10,160 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-12-14 05:45:10,160 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-12-14 05:45:10,160 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2022-12-14 05:45:10,160 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2022-12-14 05:45:10,160 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2022-12-14 05:45:10,160 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2022-12-14 05:45:10,160 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2022-12-14 05:45:10,160 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2022-12-14 05:45:10,160 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-12-14 05:45:10,161 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-12-14 05:45:10,161 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2022-12-14 05:45:10,161 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2022-12-14 05:45:10,161 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-12-14 05:45:10,161 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-12-14 05:45:10,161 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2022-12-14 05:45:10,161 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2022-12-14 05:45:10,161 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2022-12-14 05:45:10,161 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2022-12-14 05:45:10,161 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 05:45:10,161 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 05:45:10,161 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2022-12-14 05:45:10,161 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2022-12-14 05:45:10,161 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 05:45:10,161 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 05:45:10,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 05:45:10,162 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2022-12-14 05:45:10,162 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2022-12-14 05:45:10,162 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2022-12-14 05:45:10,162 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2022-12-14 05:45:10,162 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2022-12-14 05:45:10,162 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2022-12-14 05:45:10,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 05:45:10,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 05:45:10,162 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2022-12-14 05:45:10,162 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2022-12-14 05:45:10,162 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2022-12-14 05:45:10,162 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2022-12-14 05:45:10,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_disc_mutex_of_usb_serial [2022-12-14 05:45:10,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_disc_mutex_of_usb_serial [2022-12-14 05:45:10,162 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_get_by_minor [2022-12-14 05:45:10,162 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_get_by_minor [2022-12-14 05:45:10,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-12-14 05:45:10,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-12-14 05:45:10,163 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2022-12-14 05:45:10,163 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2022-12-14 05:45:10,163 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_handle_sysrq_char [2022-12-14 05:45:10,163 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_handle_sysrq_char [2022-12-14 05:45:10,163 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2022-12-14 05:45:10,163 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2022-12-14 05:45:10,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_table_lock [2022-12-14 05:45:10,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_table_lock [2022-12-14 05:45:10,163 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-12-14 05:45:10,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-12-14 05:45:10,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_table_lock [2022-12-14 05:45:10,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_table_lock [2022-12-14 05:45:10,163 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2022-12-14 05:45:10,163 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2022-12-14 05:45:10,163 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2022-12-14 05:45:10,164 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2022-12-14 05:45:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-12-14 05:45:10,164 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-12-14 05:45:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-12-14 05:45:10,164 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-12-14 05:45:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-14 05:45:10,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-12-14 05:45:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2022-12-14 05:45:10,164 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2022-12-14 05:45:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:45:10,164 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2022-12-14 05:45:10,164 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2022-12-14 05:45:10,852 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:45:10,855 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:45:11,251 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 05:45:21,381 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:45:22,356 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:45:22,356 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 05:45:22,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:45:22 BoogieIcfgContainer [2022-12-14 05:45:22,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:45:22,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:45:22,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:45:22,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:45:22,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:45:06" (1/3) ... [2022-12-14 05:45:22,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bce0810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:45:22, skipping insertion in model container [2022-12-14 05:45:22,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:09" (2/3) ... [2022-12-14 05:45:22,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bce0810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:45:22, skipping insertion in model container [2022-12-14 05:45:22,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:45:22" (3/3) ... [2022-12-14 05:45:22,367 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2022-12-14 05:45:22,383 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:45:22,383 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 05:45:22,446 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:45:22,450 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;@4048a84b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:45:22,450 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 05:45:22,459 INFO L276 IsEmpty]: Start isEmpty. Operand has 1864 states, 1175 states have (on average 1.3574468085106384) internal successors, (1595), 1217 states have internal predecessors, (1595), 555 states have call successors, (555), 133 states have call predecessors, (555), 132 states have return successors, (544), 531 states have call predecessors, (544), 544 states have call successors, (544) [2022-12-14 05:45:22,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-12-14 05:45:22,473 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:45:22,474 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:45:22,475 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:45:22,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:45:22,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1110620164, now seen corresponding path program 1 times [2022-12-14 05:45:22,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:45:22,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456531217] [2022-12-14 05:45:22,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:45:22,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:45:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:45:23,436 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2022-12-14 05:45:23,436 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:45:23,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456531217] [2022-12-14 05:45:23,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456531217] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:45:23,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:45:23,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:45:23,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776457526] [2022-12-14 05:45:23,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:45:23,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:45:23,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:45:23,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:45:23,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:45:23,481 INFO L87 Difference]: Start difference. First operand has 1864 states, 1175 states have (on average 1.3574468085106384) internal successors, (1595), 1217 states have internal predecessors, (1595), 555 states have call successors, (555), 133 states have call predecessors, (555), 132 states have return successors, (544), 531 states have call predecessors, (544), 544 states have call successors, (544) Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-12-14 05:45:25,598 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 05:45:27,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:45:29,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:45:31,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:45:32,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:45:35,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:45:35,713 INFO L93 Difference]: Finished difference Result 5362 states and 8003 transitions. [2022-12-14 05:45:35,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:45:35,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 207 [2022-12-14 05:45:35,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:45:35,741 INFO L225 Difference]: With dead ends: 5362 [2022-12-14 05:45:35,741 INFO L226 Difference]: Without dead ends: 3518 [2022-12-14 05:45:35,752 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 05:45:35,754 INFO L413 NwaCegarLoop]: 3027 mSDtfsCounter, 2434 mSDsluCounter, 2374 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2434 SdHoareTripleChecker+Valid, 5401 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:45:35,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2434 Valid, 5401 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 685 Invalid, 2 Unknown, 0 Unchecked, 12.0s Time] [2022-12-14 05:45:35,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3518 states. [2022-12-14 05:45:35,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3518 to 3495. [2022-12-14 05:45:35,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3495 states, 2219 states have (on average 1.3474538080216314) internal successors, (2990), 2268 states have internal predecessors, (2990), 1015 states have call successors, (1015), 261 states have call predecessors, (1015), 260 states have return successors, (1083), 979 states have call predecessors, (1083), 1006 states have call successors, (1083) [2022-12-14 05:45:35,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3495 states to 3495 states and 5088 transitions. [2022-12-14 05:45:35,968 INFO L78 Accepts]: Start accepts. Automaton has 3495 states and 5088 transitions. Word has length 207 [2022-12-14 05:45:35,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:45:35,970 INFO L495 AbstractCegarLoop]: Abstraction has 3495 states and 5088 transitions. [2022-12-14 05:45:35,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-12-14 05:45:35,970 INFO L276 IsEmpty]: Start isEmpty. Operand 3495 states and 5088 transitions. [2022-12-14 05:45:35,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-12-14 05:45:35,977 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:45:35,978 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:45:35,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:45:35,978 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:45:35,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:45:35,979 INFO L85 PathProgramCache]: Analyzing trace with hash -283721849, now seen corresponding path program 1 times [2022-12-14 05:45:35,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:45:35,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778363677] [2022-12-14 05:45:35,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:45:35,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:45:36,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:45:36,611 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2022-12-14 05:45:36,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:45:36,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778363677] [2022-12-14 05:45:36,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778363677] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:45:36,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:45:36,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:45:36,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730688308] [2022-12-14 05:45:36,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:45:36,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:45:36,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:45:36,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:45:36,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:45:36,614 INFO L87 Difference]: Start difference. First operand 3495 states and 5088 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-12-14 05:45:39,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:45:42,647 WARN L539 Checker$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 05:45:45,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:45:45,243 INFO L93 Difference]: Finished difference Result 9849 states and 14279 transitions. [2022-12-14 05:45:45,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:45:45,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 214 [2022-12-14 05:45:45,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:45:45,273 INFO L225 Difference]: With dead ends: 9849 [2022-12-14 05:45:45,273 INFO L226 Difference]: Without dead ends: 6401 [2022-12-14 05:45:45,286 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 05:45:45,286 INFO L413 NwaCegarLoop]: 3283 mSDtfsCounter, 2188 mSDsluCounter, 2183 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2191 SdHoareTripleChecker+Valid, 5466 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-12-14 05:45:45,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2191 Valid, 5466 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 806 Invalid, 2 Unknown, 0 Unchecked, 8.3s Time] [2022-12-14 05:45:45,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6401 states. [2022-12-14 05:45:45,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6401 to 6373. [2022-12-14 05:45:45,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6373 states, 4030 states have (on average 1.3421836228287842) internal successors, (5409), 4121 states have internal predecessors, (5409), 1842 states have call successors, (1842), 501 states have call predecessors, (1842), 500 states have return successors, (1977), 1775 states have call predecessors, (1977), 1833 states have call successors, (1977) [2022-12-14 05:45:45,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6373 states to 6373 states and 9228 transitions. [2022-12-14 05:45:45,510 INFO L78 Accepts]: Start accepts. Automaton has 6373 states and 9228 transitions. Word has length 214 [2022-12-14 05:45:45,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:45:45,511 INFO L495 AbstractCegarLoop]: Abstraction has 6373 states and 9228 transitions. [2022-12-14 05:45:45,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-12-14 05:45:45,511 INFO L276 IsEmpty]: Start isEmpty. Operand 6373 states and 9228 transitions. [2022-12-14 05:45:45,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-12-14 05:45:45,514 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:45:45,514 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:45:45,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 05:45:45,514 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:45:45,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:45:45,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1073274047, now seen corresponding path program 1 times [2022-12-14 05:45:45,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:45:45,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032857956] [2022-12-14 05:45:45,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:45:45,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:45:45,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:45:46,051 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2022-12-14 05:45:46,051 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:45:46,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032857956] [2022-12-14 05:45:46,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032857956] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:45:46,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:45:46,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:45:46,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860085930] [2022-12-14 05:45:46,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:45:46,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:45:46,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:45:46,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:45:46,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:45:46,053 INFO L87 Difference]: Start difference. First operand 6373 states and 9228 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-12-14 05:45:48,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:45:50,192 WARN L539 Checker$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 05:45:53,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:45:59,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:45:59,292 INFO L93 Difference]: Finished difference Result 18595 states and 27074 transitions. [2022-12-14 05:45:59,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:45:59,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 214 [2022-12-14 05:45:59,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:45:59,343 INFO L225 Difference]: With dead ends: 18595 [2022-12-14 05:45:59,343 INFO L226 Difference]: Without dead ends: 12269 [2022-12-14 05:45:59,364 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 05:45:59,365 INFO L413 NwaCegarLoop]: 4099 mSDtfsCounter, 2418 mSDsluCounter, 2310 mSDsCounter, 0 mSdLazyCounter, 866 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2418 SdHoareTripleChecker+Valid, 6409 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 866 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-12-14 05:45:59,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2418 Valid, 6409 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 866 Invalid, 3 Unknown, 0 Unchecked, 12.9s Time] [2022-12-14 05:45:59,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12269 states. [2022-12-14 05:45:59,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12269 to 12235. [2022-12-14 05:45:59,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12235 states, 7739 states have (on average 1.3416462075203515) internal successors, (10383), 7909 states have internal predecessors, (10383), 3516 states have call successors, (3516), 979 states have call predecessors, (3516), 979 states have return successors, (3976), 3395 states have call predecessors, (3976), 3507 states have call successors, (3976) [2022-12-14 05:45:59,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12235 states to 12235 states and 17875 transitions. [2022-12-14 05:45:59,792 INFO L78 Accepts]: Start accepts. Automaton has 12235 states and 17875 transitions. Word has length 214 [2022-12-14 05:45:59,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:45:59,793 INFO L495 AbstractCegarLoop]: Abstraction has 12235 states and 17875 transitions. [2022-12-14 05:45:59,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-12-14 05:45:59,793 INFO L276 IsEmpty]: Start isEmpty. Operand 12235 states and 17875 transitions. [2022-12-14 05:45:59,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-12-14 05:45:59,795 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:45:59,795 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:45:59,795 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 05:45:59,795 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:45:59,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:45:59,796 INFO L85 PathProgramCache]: Analyzing trace with hash 331014869, now seen corresponding path program 1 times [2022-12-14 05:45:59,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:45:59,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113040529] [2022-12-14 05:45:59,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:45:59,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:45:59,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:46:00,297 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2022-12-14 05:46:00,297 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:46:00,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113040529] [2022-12-14 05:46:00,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113040529] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:46:00,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:46:00,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:46:00,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877304581] [2022-12-14 05:46:00,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:46:00,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:46:00,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:46:00,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:46:00,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:46:00,299 INFO L87 Difference]: Start difference. First operand 12235 states and 17875 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-12-14 05:46:02,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:46:04,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:46:06,367 WARN L539 Checker$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 05:46:11,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:46:15,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:46:15,555 INFO L93 Difference]: Finished difference Result 36259 states and 52963 transitions. [2022-12-14 05:46:15,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:46:15,556 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 217 [2022-12-14 05:46:15,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:46:15,657 INFO L225 Difference]: With dead ends: 36259 [2022-12-14 05:46:15,657 INFO L226 Difference]: Without dead ends: 24071 [2022-12-14 05:46:15,693 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 05:46:15,693 INFO L413 NwaCegarLoop]: 4203 mSDtfsCounter, 2364 mSDsluCounter, 2329 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2364 SdHoareTripleChecker+Valid, 6532 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-12-14 05:46:15,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2364 Valid, 6532 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 887 Invalid, 2 Unknown, 0 Unchecked, 14.6s Time] [2022-12-14 05:46:15,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24071 states. [2022-12-14 05:46:16,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24071 to 24037. [2022-12-14 05:46:16,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24037 states, 15233 states have (on average 1.3418236722904222) internal successors, (20440), 15544 states have internal predecessors, (20440), 6866 states have call successors, (6866), 1936 states have call predecessors, (6866), 1937 states have return successors, (7795), 6649 states have call predecessors, (7795), 6857 states have call successors, (7795) [2022-12-14 05:46:16,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24037 states to 24037 states and 35101 transitions. [2022-12-14 05:46:16,560 INFO L78 Accepts]: Start accepts. Automaton has 24037 states and 35101 transitions. Word has length 217 [2022-12-14 05:46:16,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:46:16,561 INFO L495 AbstractCegarLoop]: Abstraction has 24037 states and 35101 transitions. [2022-12-14 05:46:16,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2022-12-14 05:46:16,581 INFO L276 IsEmpty]: Start isEmpty. Operand 24037 states and 35101 transitions. [2022-12-14 05:46:16,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2022-12-14 05:46:16,586 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:46:16,587 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:46:16,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 05:46:16,587 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:46:16,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:46:16,588 INFO L85 PathProgramCache]: Analyzing trace with hash -708256701, now seen corresponding path program 1 times [2022-12-14 05:46:16,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:46:16,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989852901] [2022-12-14 05:46:16,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:46:16,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:46:16,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:46:17,256 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2022-12-14 05:46:17,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:46:17,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989852901] [2022-12-14 05:46:17,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989852901] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:46:17,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:46:17,257 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:46:17,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781359845] [2022-12-14 05:46:17,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:46:17,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:46:17,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:46:17,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:46:17,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:46:17,258 INFO L87 Difference]: Start difference. First operand 24037 states and 35101 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 05:46:19,351 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 05:46:21,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:46:25,890 WARN L539 Checker$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 05:46:27,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:46:30,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:46:30,620 INFO L93 Difference]: Finished difference Result 70259 states and 105022 transitions. [2022-12-14 05:46:30,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:46:30,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 228 [2022-12-14 05:46:30,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:46:30,810 INFO L225 Difference]: With dead ends: 70259 [2022-12-14 05:46:30,810 INFO L226 Difference]: Without dead ends: 46269 [2022-12-14 05:46:30,916 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 05:46:30,916 INFO L413 NwaCegarLoop]: 3928 mSDtfsCounter, 2435 mSDsluCounter, 2204 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 5 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2435 SdHoareTripleChecker+Valid, 6132 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-12-14 05:46:30,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2435 Valid, 6132 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 811 Invalid, 3 Unknown, 0 Unchecked, 11.9s Time] [2022-12-14 05:46:30,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46269 states. [2022-12-14 05:46:32,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46269 to 46072. [2022-12-14 05:46:32,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46072 states, 29341 states have (on average 1.3452847551208207) internal successors, (39472), 30031 states have internal predecessors, (39472), 12966 states have call successors, (12966), 3804 states have call predecessors, (12966), 3764 states have return successors, (16132), 12405 states have call predecessors, (16132), 12952 states have call successors, (16132) [2022-12-14 05:46:32,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46072 states to 46072 states and 68570 transitions. [2022-12-14 05:46:32,819 INFO L78 Accepts]: Start accepts. Automaton has 46072 states and 68570 transitions. Word has length 228 [2022-12-14 05:46:32,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:46:32,820 INFO L495 AbstractCegarLoop]: Abstraction has 46072 states and 68570 transitions. [2022-12-14 05:46:32,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 05:46:32,820 INFO L276 IsEmpty]: Start isEmpty. Operand 46072 states and 68570 transitions. [2022-12-14 05:46:32,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-12-14 05:46:32,823 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:46:32,823 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:46:32,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 05:46:32,823 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:46:32,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:46:32,823 INFO L85 PathProgramCache]: Analyzing trace with hash -482535619, now seen corresponding path program 1 times [2022-12-14 05:46:32,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:46:32,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561730121] [2022-12-14 05:46:32,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:46:32,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:46:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:46:33,183 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2022-12-14 05:46:33,183 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:46:33,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561730121] [2022-12-14 05:46:33,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561730121] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:46:33,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:46:33,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:46:33,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339105876] [2022-12-14 05:46:33,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:46:33,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:46:33,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:46:33,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:46:33,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:46:33,185 INFO L87 Difference]: Start difference. First operand 46072 states and 68570 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 05:46:35,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:46:37,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:46:39,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:46:43,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:46:47,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:46:47,263 INFO L93 Difference]: Finished difference Result 68130 states and 100663 transitions. [2022-12-14 05:46:47,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:46:47,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 229 [2022-12-14 05:46:47,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:46:47,541 INFO L225 Difference]: With dead ends: 68130 [2022-12-14 05:46:47,541 INFO L226 Difference]: Without dead ends: 68127 [2022-12-14 05:46:47,573 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 05:46:47,574 INFO L413 NwaCegarLoop]: 4194 mSDtfsCounter, 2370 mSDsluCounter, 2266 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2370 SdHoareTripleChecker+Valid, 6460 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-12-14 05:46:47,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2370 Valid, 6460 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 876 Invalid, 2 Unknown, 0 Unchecked, 12.7s Time] [2022-12-14 05:46:47,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68127 states. [2022-12-14 05:46:49,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68127 to 68096. [2022-12-14 05:46:49,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68096 states, 43355 states have (on average 1.3442048206665898) internal successors, (58278), 44365 states have internal predecessors, (58278), 19126 states have call successors, (19126), 5654 states have call predecessors, (19126), 5614 states have return successors, (23226), 18327 states have call predecessors, (23226), 19112 states have call successors, (23226) [2022-12-14 05:46:49,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68096 states to 68096 states and 100630 transitions. [2022-12-14 05:46:49,740 INFO L78 Accepts]: Start accepts. Automaton has 68096 states and 100630 transitions. Word has length 229 [2022-12-14 05:46:49,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:46:49,740 INFO L495 AbstractCegarLoop]: Abstraction has 68096 states and 100630 transitions. [2022-12-14 05:46:49,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 05:46:49,741 INFO L276 IsEmpty]: Start isEmpty. Operand 68096 states and 100630 transitions. [2022-12-14 05:46:49,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-12-14 05:46:49,743 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:46:49,743 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:46:49,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 05:46:49,743 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:46:49,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:46:49,743 INFO L85 PathProgramCache]: Analyzing trace with hash -2075111802, now seen corresponding path program 1 times [2022-12-14 05:46:49,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:46:49,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129037991] [2022-12-14 05:46:49,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:46:49,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:46:49,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:46:50,255 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2022-12-14 05:46:50,256 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:46:50,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129037991] [2022-12-14 05:46:50,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129037991] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:46:50,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:46:50,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:46:50,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051438410] [2022-12-14 05:46:50,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:46:50,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:46:50,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:46:50,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:46:50,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:46:50,258 INFO L87 Difference]: Start difference. First operand 68096 states and 100630 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 05:46:52,341 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:46:54,419 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 05:47:02,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:47:02,923 INFO L93 Difference]: Finished difference Result 68120 states and 100653 transitions. [2022-12-14 05:47:02,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:47:02,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 230 [2022-12-14 05:47:02,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:47:03,159 INFO L225 Difference]: With dead ends: 68120 [2022-12-14 05:47:03,159 INFO L226 Difference]: Without dead ends: 68117 [2022-12-14 05:47:03,182 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 05:47:03,183 INFO L413 NwaCegarLoop]: 4194 mSDtfsCounter, 2367 mSDsluCounter, 2269 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2367 SdHoareTripleChecker+Valid, 6463 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:47:03,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2367 Valid, 6463 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 876 Invalid, 2 Unknown, 0 Unchecked, 11.0s Time] [2022-12-14 05:47:03,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68117 states. [2022-12-14 05:47:05,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68117 to 68097. [2022-12-14 05:47:05,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68097 states, 43356 states have (on average 1.3441968816311467) internal successors, (58279), 44366 states have internal predecessors, (58279), 19126 states have call successors, (19126), 5654 states have call predecessors, (19126), 5614 states have return successors, (23226), 18327 states have call predecessors, (23226), 19112 states have call successors, (23226) [2022-12-14 05:47:05,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68097 states to 68097 states and 100631 transitions. [2022-12-14 05:47:05,619 INFO L78 Accepts]: Start accepts. Automaton has 68097 states and 100631 transitions. Word has length 230 [2022-12-14 05:47:05,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:47:05,619 INFO L495 AbstractCegarLoop]: Abstraction has 68097 states and 100631 transitions. [2022-12-14 05:47:05,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 05:47:05,619 INFO L276 IsEmpty]: Start isEmpty. Operand 68097 states and 100631 transitions. [2022-12-14 05:47:05,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-12-14 05:47:05,621 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:47:05,621 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:47:05,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 05:47:05,621 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:47:05,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:47:05,622 INFO L85 PathProgramCache]: Analyzing trace with hash 94638944, now seen corresponding path program 1 times [2022-12-14 05:47:05,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:47:05,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476960034] [2022-12-14 05:47:05,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:47:05,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:47:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:47:05,934 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2022-12-14 05:47:05,934 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:47:05,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476960034] [2022-12-14 05:47:05,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476960034] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:47:05,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:47:05,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:47:05,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076717762] [2022-12-14 05:47:05,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:47:05,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:47:05,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:47:05,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:47:05,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:47:05,937 INFO L87 Difference]: Start difference. First operand 68097 states and 100631 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 05:47:07,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:47:09,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:47:12,427 WARN L539 Checker$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 05:47:17,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:47:17,854 INFO L93 Difference]: Finished difference Result 68137 states and 100682 transitions. [2022-12-14 05:47:17,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:47:17,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 231 [2022-12-14 05:47:17,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:47:18,101 INFO L225 Difference]: With dead ends: 68137 [2022-12-14 05:47:18,101 INFO L226 Difference]: Without dead ends: 68134 [2022-12-14 05:47:18,127 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 05:47:18,127 INFO L413 NwaCegarLoop]: 4194 mSDtfsCounter, 2363 mSDsluCounter, 2272 mSDsCounter, 0 mSdLazyCounter, 874 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2366 SdHoareTripleChecker+Valid, 6466 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 874 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-12-14 05:47:18,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2366 Valid, 6466 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 874 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2022-12-14 05:47:18,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68134 states. [2022-12-14 05:47:20,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68134 to 68114. [2022-12-14 05:47:20,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68114 states, 43365 states have (on average 1.344125446788885) internal successors, (58288), 44383 states have internal predecessors, (58288), 19126 states have call successors, (19126), 5654 states have call predecessors, (19126), 5622 states have return successors, (23246), 18327 states have call predecessors, (23246), 19112 states have call successors, (23246) [2022-12-14 05:47:20,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68114 states to 68114 states and 100660 transitions. [2022-12-14 05:47:20,458 INFO L78 Accepts]: Start accepts. Automaton has 68114 states and 100660 transitions. Word has length 231 [2022-12-14 05:47:20,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:47:20,459 INFO L495 AbstractCegarLoop]: Abstraction has 68114 states and 100660 transitions. [2022-12-14 05:47:20,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 05:47:20,459 INFO L276 IsEmpty]: Start isEmpty. Operand 68114 states and 100660 transitions. [2022-12-14 05:47:20,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-12-14 05:47:20,461 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:47:20,461 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:47:20,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 05:47:20,461 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:47:20,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:47:20,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1362559799, now seen corresponding path program 1 times [2022-12-14 05:47:20,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:47:20,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543909590] [2022-12-14 05:47:20,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:47:20,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:47:20,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:47:20,762 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2022-12-14 05:47:20,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:47:20,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543909590] [2022-12-14 05:47:20,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543909590] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:47:20,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:47:20,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:47:20,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563209204] [2022-12-14 05:47:20,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:47:20,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:47:20,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:47:20,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:47:20,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:47:20,764 INFO L87 Difference]: Start difference. First operand 68114 states and 100660 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 05:47:23,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:47:25,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:47:31,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:47:31,666 INFO L93 Difference]: Finished difference Result 101192 states and 150715 transitions. [2022-12-14 05:47:31,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:47:31,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 232 [2022-12-14 05:47:31,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:47:32,177 INFO L225 Difference]: With dead ends: 101192 [2022-12-14 05:47:32,177 INFO L226 Difference]: Without dead ends: 101162 [2022-12-14 05:47:32,232 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 05:47:32,232 INFO L413 NwaCegarLoop]: 3790 mSDtfsCounter, 2434 mSDsluCounter, 1884 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2434 SdHoareTripleChecker+Valid, 5674 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2022-12-14 05:47:32,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2434 Valid, 5674 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 761 Invalid, 1 Unknown, 0 Unchecked, 8.4s Time] [2022-12-14 05:47:32,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101162 states. [2022-12-14 05:47:35,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101162 to 101146. [2022-12-14 05:47:35,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101146 states, 64579 states have (on average 1.3458090091206119) internal successors, (86911), 66273 states have internal predecessors, (86911), 27954 states have call successors, (27954), 8826 states have call predecessors, (27954), 8612 states have return successors, (35744), 26421 states have call predecessors, (35744), 27936 states have call successors, (35744) [2022-12-14 05:47:36,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101146 states to 101146 states and 150609 transitions. [2022-12-14 05:47:36,033 INFO L78 Accepts]: Start accepts. Automaton has 101146 states and 150609 transitions. Word has length 232 [2022-12-14 05:47:36,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:47:36,034 INFO L495 AbstractCegarLoop]: Abstraction has 101146 states and 150609 transitions. [2022-12-14 05:47:36,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-12-14 05:47:36,034 INFO L276 IsEmpty]: Start isEmpty. Operand 101146 states and 150609 transitions. [2022-12-14 05:47:36,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-12-14 05:47:36,036 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:47:36,036 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:47:36,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 05:47:36,036 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:47:36,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:47:36,037 INFO L85 PathProgramCache]: Analyzing trace with hash -297661288, now seen corresponding path program 1 times [2022-12-14 05:47:36,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:47:36,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607262994] [2022-12-14 05:47:36,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:47:36,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:47:36,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:47:36,438 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2022-12-14 05:47:36,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:47:36,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607262994] [2022-12-14 05:47:36,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607262994] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:47:36,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:47:36,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:47:36,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013487567] [2022-12-14 05:47:36,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:47:36,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:47:36,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:47:36,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:47:36,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:47:36,441 INFO L87 Difference]: Start difference. First operand 101146 states and 150609 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 05:47:38,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:47:40,285 WARN L539 Checker$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 05:47:47,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:47:53,320 WARN L539 Checker$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 05:47:55,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:47:55,570 INFO L93 Difference]: Finished difference Result 216608 states and 326036 transitions. [2022-12-14 05:47:55,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:47:55,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 238 [2022-12-14 05:47:55,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:47:56,203 INFO L225 Difference]: With dead ends: 216608 [2022-12-14 05:47:56,203 INFO L226 Difference]: Without dead ends: 138130 [2022-12-14 05:47:56,525 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 05:47:56,526 INFO L413 NwaCegarLoop]: 3160 mSDtfsCounter, 2586 mSDsluCounter, 2204 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2586 SdHoareTripleChecker+Valid, 5364 SdHoareTripleChecker+Invalid, 693 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2022-12-14 05:47:56,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2586 Valid, 5364 Invalid, 693 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 686 Invalid, 2 Unknown, 0 Unchecked, 14.8s Time] [2022-12-14 05:47:56,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138130 states. [2022-12-14 05:48:00,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138130 to 137717. [2022-12-14 05:48:00,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137717 states, 88185 states have (on average 1.348222486817486) internal successors, (118893), 90500 states have internal predecessors, (118893), 37834 states have call successors, (37834), 12001 states have call predecessors, (37834), 11697 states have return successors, (49820), 35715 states have call predecessors, (49820), 37816 states have call successors, (49820) [2022-12-14 05:48:01,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137717 states to 137717 states and 206547 transitions. [2022-12-14 05:48:01,465 INFO L78 Accepts]: Start accepts. Automaton has 137717 states and 206547 transitions. Word has length 238 [2022-12-14 05:48:01,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:48:01,466 INFO L495 AbstractCegarLoop]: Abstraction has 137717 states and 206547 transitions. [2022-12-14 05:48:01,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 05:48:01,466 INFO L276 IsEmpty]: Start isEmpty. Operand 137717 states and 206547 transitions. [2022-12-14 05:48:01,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-12-14 05:48:01,468 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:48:01,468 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:48:01,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 05:48:01,468 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:48:01,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:48:01,469 INFO L85 PathProgramCache]: Analyzing trace with hash -638979704, now seen corresponding path program 1 times [2022-12-14 05:48:01,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:48:01,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096172157] [2022-12-14 05:48:01,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:48:01,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:48:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:48:01,903 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2022-12-14 05:48:01,903 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:48:01,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096172157] [2022-12-14 05:48:01,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096172157] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:48:01,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:48:01,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:48:01,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760022356] [2022-12-14 05:48:01,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:48:01,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:48:01,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:48:01,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:48:01,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:48:01,904 INFO L87 Difference]: Start difference. First operand 137717 states and 206547 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 05:48:03,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:48:06,024 WARN L539 Checker$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 05:48:09,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:48:12,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:48:12,419 INFO L93 Difference]: Finished difference Result 137719 states and 206548 transitions. [2022-12-14 05:48:12,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:48:12,419 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 239 [2022-12-14 05:48:12,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:48:13,057 INFO L225 Difference]: With dead ends: 137719 [2022-12-14 05:48:13,057 INFO L226 Difference]: Without dead ends: 137716 [2022-12-14 05:48:13,108 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 05:48:13,108 INFO L413 NwaCegarLoop]: 2340 mSDtfsCounter, 2581 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2581 SdHoareTripleChecker+Valid, 2340 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-12-14 05:48:13,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2581 Valid, 2340 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2022-12-14 05:48:13,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137716 states. [2022-12-14 05:48:17,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137716 to 137716. [2022-12-14 05:48:17,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137716 states, 88185 states have (on average 1.3481998072234507) internal successors, (118891), 90499 states have internal predecessors, (118891), 37833 states have call successors, (37833), 12001 states have call predecessors, (37833), 11697 states have return successors, (49820), 35715 states have call predecessors, (49820), 37816 states have call successors, (49820) [2022-12-14 05:48:18,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137716 states to 137716 states and 206544 transitions. [2022-12-14 05:48:18,570 INFO L78 Accepts]: Start accepts. Automaton has 137716 states and 206544 transitions. Word has length 239 [2022-12-14 05:48:18,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:48:18,570 INFO L495 AbstractCegarLoop]: Abstraction has 137716 states and 206544 transitions. [2022-12-14 05:48:18,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 05:48:18,570 INFO L276 IsEmpty]: Start isEmpty. Operand 137716 states and 206544 transitions. [2022-12-14 05:48:18,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-12-14 05:48:18,572 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:48:18,573 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:48:18,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 05:48:18,573 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:48:18,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:48:18,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1665056155, now seen corresponding path program 1 times [2022-12-14 05:48:18,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:48:18,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649134542] [2022-12-14 05:48:18,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:48:18,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:48:18,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:48:19,017 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2022-12-14 05:48:19,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:48:19,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649134542] [2022-12-14 05:48:19,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649134542] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:48:19,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:48:19,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:48:19,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892697461] [2022-12-14 05:48:19,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:48:19,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:48:19,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:48:19,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:48:19,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:48:19,019 INFO L87 Difference]: Start difference. First operand 137716 states and 206544 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 05:48:20,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:48:22,651 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 05:48:29,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:48:29,611 INFO L93 Difference]: Finished difference Result 137718 states and 206545 transitions. [2022-12-14 05:48:29,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:48:29,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 240 [2022-12-14 05:48:29,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:48:30,251 INFO L225 Difference]: With dead ends: 137718 [2022-12-14 05:48:30,251 INFO L226 Difference]: Without dead ends: 137715 [2022-12-14 05:48:30,299 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 05:48:30,300 INFO L413 NwaCegarLoop]: 2338 mSDtfsCounter, 2578 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2578 SdHoareTripleChecker+Valid, 2338 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-12-14 05:48:30,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2578 Valid, 2338 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 316 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-12-14 05:48:30,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137715 states. [2022-12-14 05:48:34,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137715 to 137715. [2022-12-14 05:48:34,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137715 states, 88185 states have (on average 1.3481771276294154) internal successors, (118889), 90498 states have internal predecessors, (118889), 37832 states have call successors, (37832), 12001 states have call predecessors, (37832), 11697 states have return successors, (49820), 35715 states have call predecessors, (49820), 37816 states have call successors, (49820) [2022-12-14 05:48:35,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137715 states to 137715 states and 206541 transitions. [2022-12-14 05:48:35,728 INFO L78 Accepts]: Start accepts. Automaton has 137715 states and 206541 transitions. Word has length 240 [2022-12-14 05:48:35,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:48:35,728 INFO L495 AbstractCegarLoop]: Abstraction has 137715 states and 206541 transitions. [2022-12-14 05:48:35,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 05:48:35,729 INFO L276 IsEmpty]: Start isEmpty. Operand 137715 states and 206541 transitions. [2022-12-14 05:48:35,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-12-14 05:48:35,731 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:48:35,731 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:48:35,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 05:48:35,731 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:48:35,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:48:35,732 INFO L85 PathProgramCache]: Analyzing trace with hash 75728619, now seen corresponding path program 1 times [2022-12-14 05:48:35,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:48:35,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37353397] [2022-12-14 05:48:35,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:48:35,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:48:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:48:36,078 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2022-12-14 05:48:36,079 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:48:36,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37353397] [2022-12-14 05:48:36,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37353397] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:48:36,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:48:36,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:48:36,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858296306] [2022-12-14 05:48:36,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:48:36,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:48:36,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:48:36,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:48:36,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:48:36,081 INFO L87 Difference]: Start difference. First operand 137715 states and 206541 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 05:48:38,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:48:40,202 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 05:48:47,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:48:47,090 INFO L93 Difference]: Finished difference Result 137717 states and 206542 transitions. [2022-12-14 05:48:47,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:48:47,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 241 [2022-12-14 05:48:47,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:48:47,737 INFO L225 Difference]: With dead ends: 137717 [2022-12-14 05:48:47,737 INFO L226 Difference]: Without dead ends: 137676 [2022-12-14 05:48:47,786 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 05:48:47,787 INFO L413 NwaCegarLoop]: 2336 mSDtfsCounter, 2575 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 315 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2575 SdHoareTripleChecker+Valid, 2336 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 315 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:48:47,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2575 Valid, 2336 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 315 Invalid, 2 Unknown, 0 Unchecked, 7.0s Time] [2022-12-14 05:48:47,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137676 states. [2022-12-14 05:48:52,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137676 to 137641. [2022-12-14 05:48:52,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137641 states, 88149 states have (on average 1.348092434400844) internal successors, (118833), 90456 states have internal predecessors, (118833), 37807 states have call successors, (37807), 11988 states have call predecessors, (37807), 11684 states have return successors, (49764), 35696 states have call predecessors, (49764), 37776 states have call successors, (49764) [2022-12-14 05:48:53,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137641 states to 137641 states and 206404 transitions. [2022-12-14 05:48:53,663 INFO L78 Accepts]: Start accepts. Automaton has 137641 states and 206404 transitions. Word has length 241 [2022-12-14 05:48:53,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:48:53,664 INFO L495 AbstractCegarLoop]: Abstraction has 137641 states and 206404 transitions. [2022-12-14 05:48:53,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 05:48:53,664 INFO L276 IsEmpty]: Start isEmpty. Operand 137641 states and 206404 transitions. [2022-12-14 05:48:53,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-12-14 05:48:53,666 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:48:53,667 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:48:53,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 05:48:53,667 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:48:53,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:48:53,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1948779874, now seen corresponding path program 1 times [2022-12-14 05:48:53,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:48:53,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755563686] [2022-12-14 05:48:53,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:48:53,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:48:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:48:54,044 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2022-12-14 05:48:54,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:48:54,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755563686] [2022-12-14 05:48:54,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755563686] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:48:54,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:48:54,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:48:54,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309025884] [2022-12-14 05:48:54,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:48:54,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:48:54,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:48:54,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:48:54,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:48:54,046 INFO L87 Difference]: Start difference. First operand 137641 states and 206404 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 05:48:56,051 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 05:48:58,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:49:03,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:49:06,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:49:06,071 INFO L93 Difference]: Finished difference Result 138659 states and 207386 transitions. [2022-12-14 05:49:06,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:49:06,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 242 [2022-12-14 05:49:06,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:49:06,673 INFO L225 Difference]: With dead ends: 138659 [2022-12-14 05:49:06,673 INFO L226 Difference]: Without dead ends: 138604 [2022-12-14 05:49:06,784 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 05:49:06,785 INFO L413 NwaCegarLoop]: 2360 mSDtfsCounter, 2413 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2413 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-12-14 05:49:06,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2413 Valid, 2544 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 366 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2022-12-14 05:49:06,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138604 states. [2022-12-14 05:49:12,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138604 to 137952. [2022-12-14 05:49:12,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137952 states, 88426 states have (on average 1.3470811752199578) internal successors, (119117), 90515 states have internal predecessors, (119117), 37573 states have call successors, (37573), 12087 states have call predecessors, (37573), 11952 states have return successors, (48942), 35849 states have call predecessors, (48942), 37528 states have call successors, (48942) [2022-12-14 05:49:13,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137952 states to 137952 states and 205632 transitions. [2022-12-14 05:49:13,106 INFO L78 Accepts]: Start accepts. Automaton has 137952 states and 205632 transitions. Word has length 242 [2022-12-14 05:49:13,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:49:13,106 INFO L495 AbstractCegarLoop]: Abstraction has 137952 states and 205632 transitions. [2022-12-14 05:49:13,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-12-14 05:49:13,106 INFO L276 IsEmpty]: Start isEmpty. Operand 137952 states and 205632 transitions. [2022-12-14 05:49:13,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-12-14 05:49:13,111 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:49:13,112 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 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] [2022-12-14 05:49:13,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 05:49:13,112 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:49:13,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:49:13,113 INFO L85 PathProgramCache]: Analyzing trace with hash 287484310, now seen corresponding path program 1 times [2022-12-14 05:49:13,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:49:13,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285033847] [2022-12-14 05:49:13,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:49:13,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:49:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:49:13,577 INFO L134 CoverageAnalysis]: Checked inductivity of 752 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2022-12-14 05:49:13,577 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:49:13,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285033847] [2022-12-14 05:49:13,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285033847] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:49:13,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:49:13,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:49:13,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703555071] [2022-12-14 05:49:13,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:49:13,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:49:13,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:49:13,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:49:13,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:49:13,579 INFO L87 Difference]: Start difference. First operand 137952 states and 205632 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 05:49:15,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:49:17,543 WARN L539 Checker$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 05:49:24,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:49:24,781 INFO L93 Difference]: Finished difference Result 213440 states and 317322 transitions. [2022-12-14 05:49:24,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:49:24,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 260 [2022-12-14 05:49:24,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:49:25,105 INFO L225 Difference]: With dead ends: 213440 [2022-12-14 05:49:25,105 INFO L226 Difference]: Without dead ends: 75548 [2022-12-14 05:49:25,496 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 05:49:25,496 INFO L413 NwaCegarLoop]: 2378 mSDtfsCounter, 2484 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2484 SdHoareTripleChecker+Valid, 2572 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-12-14 05:49:25,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2484 Valid, 2572 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 385 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-12-14 05:49:25,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75548 states. [2022-12-14 05:49:28,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75548 to 75458. [2022-12-14 05:49:28,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75458 states, 48096 states have (on average 1.3415460745176313) internal successors, (64523), 49262 states have internal predecessors, (64523), 20640 states have call successors, (20640), 6786 states have call predecessors, (20640), 6721 states have return successors, (26450), 19685 states have call predecessors, (26450), 20595 states have call successors, (26450) [2022-12-14 05:49:28,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75458 states to 75458 states and 111613 transitions. [2022-12-14 05:49:28,873 INFO L78 Accepts]: Start accepts. Automaton has 75458 states and 111613 transitions. Word has length 260 [2022-12-14 05:49:28,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:49:28,873 INFO L495 AbstractCegarLoop]: Abstraction has 75458 states and 111613 transitions. [2022-12-14 05:49:28,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-12-14 05:49:28,873 INFO L276 IsEmpty]: Start isEmpty. Operand 75458 states and 111613 transitions. [2022-12-14 05:49:28,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-12-14 05:49:28,878 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:49:28,878 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:49:28,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 05:49:28,878 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:49:28,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:49:28,878 INFO L85 PathProgramCache]: Analyzing trace with hash 684927012, now seen corresponding path program 1 times [2022-12-14 05:49:28,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:49:28,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400790261] [2022-12-14 05:49:28,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:49:28,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:49:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:49:29,160 INFO L134 CoverageAnalysis]: Checked inductivity of 988 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 984 trivial. 0 not checked. [2022-12-14 05:49:29,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:49:29,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400790261] [2022-12-14 05:49:29,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400790261] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:49:29,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:49:29,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:49:29,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485743300] [2022-12-14 05:49:29,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:49:29,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:49:29,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:49:29,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:49:29,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:49:29,161 INFO L87 Difference]: Start difference. First operand 75458 states and 111613 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 05:49:31,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:49:33,290 WARN L539 Checker$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 05:49:35,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:49:38,467 WARN L539 Checker$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 05:49:41,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:49:48,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:49:48,760 INFO L93 Difference]: Finished difference Result 215316 states and 319007 transitions. [2022-12-14 05:49:48,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:49:48,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 294 [2022-12-14 05:49:48,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:49:49,437 INFO L225 Difference]: With dead ends: 215316 [2022-12-14 05:49:49,437 INFO L226 Difference]: Without dead ends: 139918 [2022-12-14 05:49:49,680 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 05:49:49,680 INFO L413 NwaCegarLoop]: 4084 mSDtfsCounter, 2356 mSDsluCounter, 2314 mSDsCounter, 0 mSdLazyCounter, 858 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2359 SdHoareTripleChecker+Valid, 6398 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 858 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2022-12-14 05:49:49,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2359 Valid, 6398 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 858 Invalid, 3 Unknown, 0 Unchecked, 14.3s Time] [2022-12-14 05:49:49,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139918 states. [2022-12-14 05:49:55,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139918 to 138196. [2022-12-14 05:49:55,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138196 states, 88267 states have (on average 1.3453272457430296) internal successors, (118748), 90446 states have internal predecessors, (118748), 37690 states have call successors, (37690), 12380 states have call predecessors, (37690), 12238 states have return successors, (48963), 35875 states have call predecessors, (48963), 37609 states have call successors, (48963) [2022-12-14 05:49:56,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138196 states to 138196 states and 205401 transitions. [2022-12-14 05:49:56,056 INFO L78 Accepts]: Start accepts. Automaton has 138196 states and 205401 transitions. Word has length 294 [2022-12-14 05:49:56,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:49:56,056 INFO L495 AbstractCegarLoop]: Abstraction has 138196 states and 205401 transitions. [2022-12-14 05:49:56,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-12-14 05:49:56,056 INFO L276 IsEmpty]: Start isEmpty. Operand 138196 states and 205401 transitions. [2022-12-14 05:49:56,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-12-14 05:49:56,059 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:49:56,059 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:49:56,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 05:49:56,059 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:49:56,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:49:56,059 INFO L85 PathProgramCache]: Analyzing trace with hash 2097819584, now seen corresponding path program 1 times [2022-12-14 05:49:56,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:49:56,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305825015] [2022-12-14 05:49:56,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:49:56,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:49:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:49:56,699 INFO L134 CoverageAnalysis]: Checked inductivity of 988 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 988 trivial. 0 not checked. [2022-12-14 05:49:56,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:49:56,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305825015] [2022-12-14 05:49:56,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305825015] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:49:56,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:49:56,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:49:56,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68190841] [2022-12-14 05:49:56,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:49:56,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:49:56,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:49:56,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:49:56,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:49:56,701 INFO L87 Difference]: Start difference. First operand 138196 states and 205401 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-12-14 05:49:58,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:50:00,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:50:10,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:50:10,336 INFO L93 Difference]: Finished difference Result 138202 states and 205405 transitions. [2022-12-14 05:50:10,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:50:10,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 311 [2022-12-14 05:50:10,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:50:10,981 INFO L225 Difference]: With dead ends: 138202 [2022-12-14 05:50:10,981 INFO L226 Difference]: Without dead ends: 138115 [2022-12-14 05:50:11,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:50:11,038 INFO L413 NwaCegarLoop]: 2354 mSDtfsCounter, 214 mSDsluCounter, 2188 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 4542 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:50:11,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 4542 Invalid, 627 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 625 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2022-12-14 05:50:11,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138115 states. [2022-12-14 05:50:16,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138115 to 138111. [2022-12-14 05:50:17,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138111 states, 88255 states have (on average 1.343810548977395) internal successors, (118598), 90365 states have internal predecessors, (118598), 37617 states have call successors, (37617), 12376 states have call predecessors, (37617), 12238 states have return successors, (48963), 35875 states have call predecessors, (48963), 37609 states have call successors, (48963) [2022-12-14 05:50:17,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138111 states to 138111 states and 205178 transitions. [2022-12-14 05:50:17,861 INFO L78 Accepts]: Start accepts. Automaton has 138111 states and 205178 transitions. Word has length 311 [2022-12-14 05:50:17,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:50:17,861 INFO L495 AbstractCegarLoop]: Abstraction has 138111 states and 205178 transitions. [2022-12-14 05:50:17,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-12-14 05:50:17,862 INFO L276 IsEmpty]: Start isEmpty. Operand 138111 states and 205178 transitions. [2022-12-14 05:50:17,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2022-12-14 05:50:17,870 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:50:17,870 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 12, 12, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:50:17,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 05:50:17,870 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:50:17,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:50:17,870 INFO L85 PathProgramCache]: Analyzing trace with hash -320159580, now seen corresponding path program 1 times [2022-12-14 05:50:17,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:50:17,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115811316] [2022-12-14 05:50:17,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:50:17,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:50:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:50:18,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1566 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1566 trivial. 0 not checked. [2022-12-14 05:50:18,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:50:18,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115811316] [2022-12-14 05:50:18,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115811316] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:50:18,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:50:18,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:50:18,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236987124] [2022-12-14 05:50:18,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:50:18,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:50:18,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:50:18,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:50:18,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:50:18,236 INFO L87 Difference]: Start difference. First operand 138111 states and 205178 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-12-14 05:50:20,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:50:22,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:50:25,098 WARN L539 Checker$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 05:50:36,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:50:36,195 INFO L93 Difference]: Finished difference Result 308089 states and 460182 transitions. [2022-12-14 05:50:36,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:50:36,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 338 [2022-12-14 05:50:36,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:50:37,187 INFO L225 Difference]: With dead ends: 308089 [2022-12-14 05:50:37,187 INFO L226 Difference]: Without dead ends: 192923 [2022-12-14 05:50:37,611 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 05:50:37,611 INFO L413 NwaCegarLoop]: 2904 mSDtfsCounter, 2511 mSDsluCounter, 2333 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2511 SdHoareTripleChecker+Valid, 5237 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-12-14 05:50:37,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2511 Valid, 5237 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 664 Invalid, 2 Unknown, 0 Unchecked, 10.3s Time] [2022-12-14 05:50:37,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192923 states. [2022-12-14 05:50:46,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192923 to 192607. [2022-12-14 05:50:46,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192607 states, 123017 states have (on average 1.34361104562784) internal successors, (165287), 125968 states have internal predecessors, (165287), 52406 states have call successors, (52406), 17381 states have call predecessors, (52406), 17183 states have return successors, (69972), 49955 states have call predecessors, (69972), 52398 states have call successors, (69972) [2022-12-14 05:50:47,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192607 states to 192607 states and 287665 transitions. [2022-12-14 05:50:47,519 INFO L78 Accepts]: Start accepts. Automaton has 192607 states and 287665 transitions. Word has length 338 [2022-12-14 05:50:47,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:50:47,519 INFO L495 AbstractCegarLoop]: Abstraction has 192607 states and 287665 transitions. [2022-12-14 05:50:47,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-12-14 05:50:47,519 INFO L276 IsEmpty]: Start isEmpty. Operand 192607 states and 287665 transitions. [2022-12-14 05:50:47,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2022-12-14 05:50:47,531 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:50:47,532 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 12, 12, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:50:47,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 05:50:47,532 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:50:47,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:50:47,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1880984402, now seen corresponding path program 1 times [2022-12-14 05:50:47,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:50:47,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653992399] [2022-12-14 05:50:47,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:50:47,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:50:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:50:48,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1562 trivial. 0 not checked. [2022-12-14 05:50:48,021 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:50:48,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653992399] [2022-12-14 05:50:48,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653992399] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:50:48,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:50:48,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:50:48,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787764939] [2022-12-14 05:50:48,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:50:48,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:50:48,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:50:48,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:50:48,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:50:48,023 INFO L87 Difference]: Start difference. First operand 192607 states and 287665 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-12-14 05:50:50,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:50:52,860 WARN L539 Checker$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 05:50:54,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:50:58,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:51:01,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:51:06,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:51:14,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:51:14,261 INFO L93 Difference]: Finished difference Result 385005 states and 575013 transitions. [2022-12-14 05:51:14,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 05:51:14,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 342 [2022-12-14 05:51:14,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:51:15,251 INFO L225 Difference]: With dead ends: 385005 [2022-12-14 05:51:15,251 INFO L226 Difference]: Without dead ends: 192668 [2022-12-14 05:51:15,896 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 05:51:15,897 INFO L413 NwaCegarLoop]: 2325 mSDtfsCounter, 8 mSDsluCounter, 4644 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 6969 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2022-12-14 05:51:15,897 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 6969 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 953 Invalid, 3 Unknown, 0 Unchecked, 17.4s Time] [2022-12-14 05:51:16,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192668 states. [2022-12-14 05:51:23,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192668 to 192609. [2022-12-14 05:51:24,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192609 states, 123019 states have (on average 1.3431827603866069) internal successors, (165237), 125970 states have internal predecessors, (165237), 52406 states have call successors, (52406), 17381 states have call predecessors, (52406), 17183 states have return successors, (69972), 49955 states have call predecessors, (69972), 52398 states have call successors, (69972) [2022-12-14 05:51:25,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192609 states to 192609 states and 287615 transitions. [2022-12-14 05:51:25,231 INFO L78 Accepts]: Start accepts. Automaton has 192609 states and 287615 transitions. Word has length 342 [2022-12-14 05:51:25,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:51:25,231 INFO L495 AbstractCegarLoop]: Abstraction has 192609 states and 287615 transitions. [2022-12-14 05:51:25,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2022-12-14 05:51:25,232 INFO L276 IsEmpty]: Start isEmpty. Operand 192609 states and 287615 transitions. [2022-12-14 05:51:25,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2022-12-14 05:51:25,247 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:51:25,248 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:51:25,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 05:51:25,248 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:51:25,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:51:25,248 INFO L85 PathProgramCache]: Analyzing trace with hash -449994234, now seen corresponding path program 1 times [2022-12-14 05:51:25,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:51:25,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885816515] [2022-12-14 05:51:25,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:51:25,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:51:25,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:51:25,635 INFO L134 CoverageAnalysis]: Checked inductivity of 1572 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1572 trivial. 0 not checked. [2022-12-14 05:51:25,635 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:51:25,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885816515] [2022-12-14 05:51:25,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885816515] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:51:25,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:51:25,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:51:25,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773611992] [2022-12-14 05:51:25,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:51:25,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:51:25,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:51:25,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:51:25,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:51:25,637 INFO L87 Difference]: Start difference. First operand 192609 states and 287615 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-12-14 05:51:27,698 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:51:29,761 WARN L539 Checker$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 05:51:33,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:51:36,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:51:42,215 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:51:50,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:51:50,936 INFO L93 Difference]: Finished difference Result 436113 states and 654442 transitions. [2022-12-14 05:51:50,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:51:50,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 351 [2022-12-14 05:51:50,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:51:52,537 INFO L225 Difference]: With dead ends: 436113 [2022-12-14 05:51:52,537 INFO L226 Difference]: Without dead ends: 266449 [2022-12-14 05:51:53,238 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 05:51:53,238 INFO L413 NwaCegarLoop]: 3180 mSDtfsCounter, 2374 mSDsluCounter, 2293 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2374 SdHoareTripleChecker+Valid, 5473 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:51:53,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2374 Valid, 5473 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 729 Invalid, 3 Unknown, 0 Unchecked, 14.2s Time] [2022-12-14 05:51:53,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266449 states. [2022-12-14 05:52:03,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266449 to 265987. [2022-12-14 05:52:04,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265987 states, 170095 states have (on average 1.344125341720803) internal successors, (228629), 174050 states have internal predecessors, (228629), 72190 states have call successors, (72190), 24007 states have call predecessors, (72190), 23701 states have return successors, (98495), 68877 states have call predecessors, (98495), 72182 states have call successors, (98495) [2022-12-14 05:52:06,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265987 states to 265987 states and 399314 transitions. [2022-12-14 05:52:06,056 INFO L78 Accepts]: Start accepts. Automaton has 265987 states and 399314 transitions. Word has length 351 [2022-12-14 05:52:06,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:52:06,057 INFO L495 AbstractCegarLoop]: Abstraction has 265987 states and 399314 transitions. [2022-12-14 05:52:06,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-12-14 05:52:06,057 INFO L276 IsEmpty]: Start isEmpty. Operand 265987 states and 399314 transitions. [2022-12-14 05:52:06,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-12-14 05:52:06,081 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:52:06,081 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 12, 12, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:52:06,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 05:52:06,081 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:52:06,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:52:06,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1480486166, now seen corresponding path program 1 times [2022-12-14 05:52:06,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:52:06,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412229977] [2022-12-14 05:52:06,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:52:06,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:52:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:52:06,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1564 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1564 trivial. 0 not checked. [2022-12-14 05:52:06,695 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:52:06,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412229977] [2022-12-14 05:52:06,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412229977] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:52:06,695 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:52:06,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:52:06,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382901194] [2022-12-14 05:52:06,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:52:06,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:52:06,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:52:06,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:52:06,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:52:06,697 INFO L87 Difference]: Start difference. First operand 265987 states and 399314 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-12-14 05:52:08,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:52:10,870 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 05:52:31,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:52:31,105 INFO L93 Difference]: Finished difference Result 580970 states and 881103 transitions. [2022-12-14 05:52:31,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:52:31,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 347 [2022-12-14 05:52:31,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:52:33,039 INFO L225 Difference]: With dead ends: 580970 [2022-12-14 05:52:33,039 INFO L226 Difference]: Without dead ends: 315357 [2022-12-14 05:52:34,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:52:34,183 INFO L413 NwaCegarLoop]: 4291 mSDtfsCounter, 2338 mSDsluCounter, 2278 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2338 SdHoareTripleChecker+Valid, 6569 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-12-14 05:52:34,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2338 Valid, 6569 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 899 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2022-12-14 05:52:34,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315357 states. [2022-12-14 05:52:47,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315357 to 314720. [2022-12-14 05:52:47,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314720 states, 201146 states have (on average 1.3430244697881142) internal successors, (270144), 205827 states have internal predecessors, (270144), 85293 states have call successors, (85293), 28642 states have call predecessors, (85293), 28280 states have return successors, (114893), 81372 states have call predecessors, (114893), 85213 states have call successors, (114893) [2022-12-14 05:52:49,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314720 states to 314720 states and 470330 transitions. [2022-12-14 05:52:49,530 INFO L78 Accepts]: Start accepts. Automaton has 314720 states and 470330 transitions. Word has length 347 [2022-12-14 05:52:49,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:52:49,531 INFO L495 AbstractCegarLoop]: Abstraction has 314720 states and 470330 transitions. [2022-12-14 05:52:49,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (42), 3 states have call predecessors, (42), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-12-14 05:52:49,531 INFO L276 IsEmpty]: Start isEmpty. Operand 314720 states and 470330 transitions. [2022-12-14 05:52:49,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2022-12-14 05:52:49,588 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:52:49,589 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:52:49,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 05:52:49,589 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:52:49,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:52:49,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1385628742, now seen corresponding path program 1 times [2022-12-14 05:52:49,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:52:49,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552015085] [2022-12-14 05:52:49,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:52:49,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:52:49,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:52:49,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1579 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1575 trivial. 0 not checked. [2022-12-14 05:52:49,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:52:49,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552015085] [2022-12-14 05:52:49,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552015085] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:52:49,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:52:49,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:52:49,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546546865] [2022-12-14 05:52:49,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:52:49,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:52:49,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:52:49,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:52:49,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:52:49,982 INFO L87 Difference]: Start difference. First operand 314720 states and 470330 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-12-14 05:52:52,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:52:54,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:52:59,188 WARN L539 Checker$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 05:53:22,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:53:22,037 INFO L93 Difference]: Finished difference Result 807348 states and 1206610 transitions. [2022-12-14 05:53:22,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:53:22,038 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 365 [2022-12-14 05:53:22,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:53:25,361 INFO L225 Difference]: With dead ends: 807348 [2022-12-14 05:53:25,361 INFO L226 Difference]: Without dead ends: 493002 [2022-12-14 05:53:26,736 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 05:53:26,736 INFO L413 NwaCegarLoop]: 3111 mSDtfsCounter, 2310 mSDsluCounter, 2198 mSDsCounter, 0 mSdLazyCounter, 802 mSolverCounterSat, 61 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2310 SdHoareTripleChecker+Valid, 5309 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 802 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:53:26,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2310 Valid, 5309 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 802 Invalid, 2 Unknown, 0 Unchecked, 10.0s Time] [2022-12-14 05:53:27,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493002 states. [2022-12-14 05:53:52,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493002 to 492839. [2022-12-14 05:53:52,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 492839 states, 316567 states have (on average 1.3376473226836656) internal successors, (423455), 324123 states have internal predecessors, (423455), 132122 states have call successors, (132122), 44793 states have call predecessors, (132122), 44149 states have return successors, (176816), 125718 states have call predecessors, (176816), 132008 states have call successors, (176816) [2022-12-14 05:53:55,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 492839 states to 492839 states and 732393 transitions. [2022-12-14 05:53:55,909 INFO L78 Accepts]: Start accepts. Automaton has 492839 states and 732393 transitions. Word has length 365 [2022-12-14 05:53:55,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:53:55,909 INFO L495 AbstractCegarLoop]: Abstraction has 492839 states and 732393 transitions. [2022-12-14 05:53:55,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-12-14 05:53:55,909 INFO L276 IsEmpty]: Start isEmpty. Operand 492839 states and 732393 transitions. [2022-12-14 05:53:55,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2022-12-14 05:53:55,943 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:53:55,943 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:53:55,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-14 05:53:55,943 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:53:55,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:53:55,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1529601581, now seen corresponding path program 1 times [2022-12-14 05:53:55,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:53:55,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148006357] [2022-12-14 05:53:55,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:53:55,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:53:56,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:53:58,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1579 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 1573 trivial. 0 not checked. [2022-12-14 05:53:58,679 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:53:58,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148006357] [2022-12-14 05:53:58,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148006357] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:53:58,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024110410] [2022-12-14 05:53:58,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:53:58,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:53:58,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17008ed7-3e71-40dc-b39d-3b2dceba8172/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:53:58,681 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17008ed7-3e71-40dc-b39d-3b2dceba8172/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:53:58,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17008ed7-3e71-40dc-b39d-3b2dceba8172/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 05:54:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:54:00,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 7761 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 05:54:00,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:54:00,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1579 backedges. 666 proven. 0 refuted. 0 times theorem prover too weak. 913 trivial. 0 not checked. [2022-12-14 05:54:00,390 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:54:00,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024110410] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:54:00,390 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 05:54:00,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2022-12-14 05:54:00,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235980750] [2022-12-14 05:54:00,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:54:00,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:54:00,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:54:00,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:54:00,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-12-14 05:54:00,392 INFO L87 Difference]: Start difference. First operand 492839 states and 732393 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, (46), 2 states have call predecessors, (46), 2 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-12-14 05:54:02,459 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:54:04,570 WARN L539 Checker$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 05:54:10,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:54:17,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:54:19,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:54:34,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:54:34,106 INFO L93 Difference]: Finished difference Result 807895 states and 1200335 transitions. [2022-12-14 05:54:34,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 05:54:34,107 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, (46), 2 states have call predecessors, (46), 2 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 364 [2022-12-14 05:54:34,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:54:36,106 INFO L225 Difference]: With dead ends: 807895 [2022-12-14 05:54:36,106 INFO L226 Difference]: Without dead ends: 314837 [2022-12-14 05:54:37,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 363 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-12-14 05:54:37,994 INFO L413 NwaCegarLoop]: 2327 mSDtfsCounter, 19 mSDsluCounter, 6957 mSDsCounter, 0 mSdLazyCounter, 1270 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 9284 SdHoareTripleChecker+Invalid, 1279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1270 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.4s IncrementalHoareTripleChecker+Time [2022-12-14 05:54:37,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 9284 Invalid, 1279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1270 Invalid, 3 Unknown, 0 Unchecked, 16.4s Time] [2022-12-14 05:54:38,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314837 states. [2022-12-14 05:54:51,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314837 to 311787. [2022-12-14 05:54:52,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311787 states, 200634 states have (on average 1.3410389066658692) internal successors, (269058), 205562 states have internal predecessors, (269058), 83414 states have call successors, (83414), 28154 states have call predecessors, (83414), 27738 states have return successors, (111736), 79223 states have call predecessors, (111736), 83328 states have call successors, (111736) [2022-12-14 05:54:54,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311787 states to 311787 states and 464208 transitions. [2022-12-14 05:54:54,288 INFO L78 Accepts]: Start accepts. Automaton has 311787 states and 464208 transitions. Word has length 364 [2022-12-14 05:54:54,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:54:54,288 INFO L495 AbstractCegarLoop]: Abstraction has 311787 states and 464208 transitions. [2022-12-14 05:54:54,288 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, (46), 2 states have call predecessors, (46), 2 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2022-12-14 05:54:54,288 INFO L276 IsEmpty]: Start isEmpty. Operand 311787 states and 464208 transitions. [2022-12-14 05:54:54,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2022-12-14 05:54:54,327 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:54:54,327 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 12, 12, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:54:54,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17008ed7-3e71-40dc-b39d-3b2dceba8172/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 05:54:54,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17008ed7-3e71-40dc-b39d-3b2dceba8172/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:54:54,529 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 05:54:54,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:54:54,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1741325863, now seen corresponding path program 1 times [2022-12-14 05:54:54,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:54:54,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055547760] [2022-12-14 05:54:54,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:54:54,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:54:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:54:55,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1757 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1753 trivial. 0 not checked. [2022-12-14 05:54:55,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:54:55,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055547760] [2022-12-14 05:54:55,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055547760] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:54:55,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:54:55,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:54:55,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210664299] [2022-12-14 05:54:55,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:54:55,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:54:55,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:54:55,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:54:55,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:54:55,421 INFO L87 Difference]: Start difference. First operand 311787 states and 464208 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2022-12-14 05:54:57,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:54:59,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:55:01,191 WARN L539 Checker$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 05:55:03,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 05:55:26,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:55:26,977 INFO L93 Difference]: Finished difference Result 623203 states and 927914 transitions. [2022-12-14 05:55:26,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:55:26,978 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 398 [2022-12-14 05:55:26,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:55:28,883 INFO L225 Difference]: With dead ends: 623203 [2022-12-14 05:55:28,884 INFO L226 Difference]: Without dead ends: 311805 [2022-12-14 05:55:30,193 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 05:55:30,193 INFO L413 NwaCegarLoop]: 2340 mSDtfsCounter, 19 mSDsluCounter, 4649 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 6989 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:55:30,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 6989 Invalid, 965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 954 Invalid, 3 Unknown, 0 Unchecked, 16.1s Time] [2022-12-14 05:55:30,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311805 states.