./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ec1c916a4e8241683d3d78dd3b5f266227914917d53067d3c7741f08a3fdd65b --- 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-38b53e6 [2022-11-25 17:25:43,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:25:43,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:25:43,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:25:43,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:25:43,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:25:43,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:25:43,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:25:43,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:25:43,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:25:43,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:25:43,384 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:25:43,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:25:43,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:25:43,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:25:43,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:25:43,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:25:43,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:25:43,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:25:43,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:25:43,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:25:43,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:25:43,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:25:43,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:25:43,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:25:43,411 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:25:43,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:25:43,413 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:25:43,414 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:25:43,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:25:43,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:25:43,417 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:25:43,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:25:43,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:25:43,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:25:43,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:25:43,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:25:43,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:25:43,425 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:25:43,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:25:43,427 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:25:43,428 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 17:25:43,457 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:25:43,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:25:43,459 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:25:43,459 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:25:43,460 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:25:43,461 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:25:43,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:25:43,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:25:43,463 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:25:43,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:25:43,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:25:43,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:25:43,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:25:43,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:25:43,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:25:43,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:25:43,467 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:25:43,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:25:43,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:25:43,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:25:43,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:25:43,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:25:43,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:25:43,470 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:25:43,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:25:43,471 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:25:43,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:25:43,471 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:25:43,472 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:25:43,472 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:25:43,473 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:25:43,473 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec1c916a4e8241683d3d78dd3b5f266227914917d53067d3c7741f08a3fdd65b [2022-11-25 17:25:43,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:25:43,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:25:43,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:25:43,873 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:25:43,874 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:25:43,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-25 17:25:47,081 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:25:47,626 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:25:47,627 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-25 17:25:47,670 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/data/38394497e/3290cbd13c73469ba9914ef22a4dc3b2/FLAGd81cce41a [2022-11-25 17:25:47,687 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/data/38394497e/3290cbd13c73469ba9914ef22a4dc3b2 [2022-11-25 17:25:47,691 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:25:47,693 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:25:47,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:25:47,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:25:47,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:25:47,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:25:47" (1/1) ... [2022-11-25 17:25:47,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e207ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:47, skipping insertion in model container [2022-11-25 17:25:47,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:25:47" (1/1) ... [2022-11-25 17:25:47,717 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:25:47,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:25:48,369 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 17:25:48,439 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 17:25:48,447 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-25 17:25:48,452 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 17:25:48,458 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-25 17:25:48,464 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 17:25:48,522 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:25:48,524 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 17:25:48,525 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 17:25:48,527 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 17:25:48,536 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:25:48,536 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 17:25:48,681 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 17:25:48,688 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-11-25 17:25:48,727 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-11-25 17:25:48,729 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:48,731 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:48,754 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:25:48,840 WARN L623 FunctionHandler]: Unknown extern function tty_insert_flip_string_fixed_flag [2022-11-25 17:25:48,980 WARN L623 FunctionHandler]: Unknown extern function usb_serial_register [2022-11-25 17:25:48,981 WARN L623 FunctionHandler]: Unknown extern function usb_serial_register [2022-11-25 17:25:48,983 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:48,991 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:48,994 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:48,995 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 17:25:48,996 WARN L623 FunctionHandler]: Unknown extern function usb_match_id [2022-11-25 17:25:48,997 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,001 WARN L623 FunctionHandler]: Unknown extern function msleep_interruptible [2022-11-25 17:25:49,001 WARN L623 FunctionHandler]: Unknown extern function usb_reset_device [2022-11-25 17:25:49,003 WARN L623 FunctionHandler]: Unknown extern function usb_driver_set_configuration [2022-11-25 17:25:49,010 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,016 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 17:25:49,017 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 17:25:49,018 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 17:25:49,019 WARN L623 FunctionHandler]: Unknown extern function __kfifo_alloc [2022-11-25 17:25:49,020 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,020 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:25:49,024 WARN L623 FunctionHandler]: Unknown extern function __kfifo_free [2022-11-25 17:25:49,024 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:25:49,025 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:25:49,027 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,030 WARN L623 FunctionHandler]: Unknown extern function __kfifo_free [2022-11-25 17:25:49,044 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:25:49,046 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:25:49,047 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,080 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-11-25 17:25:49,082 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,084 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,086 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 17:25:49,095 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,100 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,104 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,109 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,115 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,117 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,121 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,125 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,130 WARN L623 FunctionHandler]: Unknown extern function usb_clear_halt [2022-11-25 17:25:49,131 WARN L623 FunctionHandler]: Unknown extern function usb_clear_halt [2022-11-25 17:25:49,139 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,141 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,142 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,144 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,157 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,159 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,160 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 17:25:49,161 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,163 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:25:49,163 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:25:49,164 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,167 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,181 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:25:49,182 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:25:49,183 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,184 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,185 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-11-25 17:25:49,187 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:25:49,188 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:25:49,188 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,190 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,192 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,194 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:25:49,195 WARN L623 FunctionHandler]: Unknown extern function __kfifo_in_r [2022-11-25 17:25:49,195 WARN L623 FunctionHandler]: Unknown extern function __kfifo_in [2022-11-25 17:25:49,198 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,205 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:25:49,207 WARN L623 FunctionHandler]: Unknown extern function __kfifo_max_r [2022-11-25 17:25:49,208 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,211 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,212 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:25:49,214 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,216 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,219 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,221 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,231 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,234 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,237 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,245 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,247 WARN L623 FunctionHandler]: Unknown extern function interruptible_sleep_on [2022-11-25 17:25:49,258 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,265 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,271 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,272 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,274 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,282 WARN L623 FunctionHandler]: Unknown extern function tty_get_baud_rate [2022-11-25 17:25:49,284 WARN L623 FunctionHandler]: Unknown extern function tty_encode_baud_rate [2022-11-25 17:25:49,285 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,287 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,289 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,290 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:25:49,292 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,294 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:25:49,296 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,332 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,333 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:25:49,337 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,339 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,342 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,343 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,344 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,344 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,345 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,347 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,348 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,349 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,350 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,351 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,352 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 17:25:49,352 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,354 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,355 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,356 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 17:25:49,357 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,358 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 17:25:49,358 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,359 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_get [2022-11-25 17:25:49,361 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,363 WARN L623 FunctionHandler]: Unknown extern function tty_kref_put [2022-11-25 17:25:49,364 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 17:25:49,364 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,367 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,368 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,369 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 17:25:49,370 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,370 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 17:25:49,372 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,373 WARN L623 FunctionHandler]: Unknown extern function tty_flip_buffer_push [2022-11-25 17:25:49,380 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_get [2022-11-25 17:25:49,380 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,382 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:25:49,383 WARN L623 FunctionHandler]: Unknown extern function __kfifo_out_r [2022-11-25 17:25:49,383 WARN L623 FunctionHandler]: Unknown extern function __kfifo_out [2022-11-25 17:25:49,386 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 17:25:49,387 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,388 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:25:49,389 WARN L623 FunctionHandler]: Unknown extern function tty_wakeup [2022-11-25 17:25:49,390 WARN L623 FunctionHandler]: Unknown extern function tty_kref_put [2022-11-25 17:25:49,390 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 17:25:49,391 WARN L623 FunctionHandler]: Unknown extern function tty_kref_put [2022-11-25 17:25:49,392 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:25:49,394 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,395 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,396 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,397 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,398 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:25:49,407 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,408 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:25:49,410 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 17:25:49,410 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_get [2022-11-25 17:25:49,411 WARN L623 FunctionHandler]: Unknown extern function tty_wakeup [2022-11-25 17:25:49,412 WARN L623 FunctionHandler]: Unknown extern function tty_kref_put [2022-11-25 17:25:49,413 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,415 WARN L623 FunctionHandler]: Unknown extern function add_wait_queue [2022-11-25 17:25:49,416 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-25 17:25:49,418 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-11-25 17:25:49,420 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-25 17:25:49,420 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-11-25 17:25:49,421 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:25:49,422 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:25:49,422 WARN L623 FunctionHandler]: Unknown extern function msleep_interruptible [2022-11-25 17:25:49,422 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:25:49,430 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:25:49,431 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:25:49,432 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:25:49,435 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 17:25:49,440 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-11-25 17:25:49,442 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-11-25 17:25:49,444 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,446 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,449 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,451 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:25:49,456 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,458 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-11-25 17:25:49,466 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,466 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 17:25:49,467 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-11-25 17:25:49,473 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-11-25 17:25:49,474 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,480 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,482 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:25:49,483 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,483 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-11-25 17:25:49,484 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,485 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,506 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:25:49,508 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:25:49,531 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 17:25:49,552 WARN L623 FunctionHandler]: Unknown extern function ldv_detach_1 [2022-11-25 17:25:49,552 WARN L623 FunctionHandler]: Unknown extern function ldv_detach_1 [2022-11-25 17:25:49,553 WARN L623 FunctionHandler]: Unknown extern function ldv_probe_1 [2022-11-25 17:25:49,555 WARN L623 FunctionHandler]: Unknown extern function usb_serial_probe [2022-11-25 17:25:49,555 WARN L623 FunctionHandler]: Unknown extern function usb_serial_disconnect [2022-11-25 17:25:49,565 WARN L623 FunctionHandler]: Unknown extern function ldv_detach_2 [2022-11-25 17:25:49,565 WARN L623 FunctionHandler]: Unknown extern function ldv_detach_2 [2022-11-25 17:25:49,566 WARN L623 FunctionHandler]: Unknown extern function ldv_probe_2 [2022-11-25 17:25:49,567 WARN L623 FunctionHandler]: Unknown extern function ldv_check_final_state [2022-11-25 17:25:49,572 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_71103828-98cc-4f86-b165-8a68333c127b/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point_ldv-val-v0.8.cil.out.i[218543,218556] [2022-11-25 17:25:49,586 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:25:49,593 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:25:49,595 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:25:49,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:25:49,642 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:25:49,743 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 17:25:49,744 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 17:25:49,745 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-25 17:25:49,745 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 17:25:49,746 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-25 17:25:49,746 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 17:25:49,748 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:25:49,749 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 17:25:49,750 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-25 17:25:49,750 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_fmt [2022-11-25 17:25:49,751 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-25 17:25:49,751 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-25 17:25:49,762 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-11-25 17:25:49,762 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-11-25 17:25:49,764 WARN L623 FunctionHandler]: Unknown extern function dev_printk [2022-11-25 17:25:49,765 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,765 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,766 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:25:49,771 WARN L623 FunctionHandler]: Unknown extern function tty_insert_flip_string_fixed_flag [2022-11-25 17:25:49,793 WARN L623 FunctionHandler]: Unknown extern function usb_serial_register [2022-11-25 17:25:49,794 WARN L623 FunctionHandler]: Unknown extern function usb_serial_register [2022-11-25 17:25:49,795 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,799 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,804 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,805 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-11-25 17:25:49,805 WARN L623 FunctionHandler]: Unknown extern function usb_match_id [2022-11-25 17:25:49,806 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,812 WARN L623 FunctionHandler]: Unknown extern function msleep_interruptible [2022-11-25 17:25:49,812 WARN L623 FunctionHandler]: Unknown extern function usb_reset_device [2022-11-25 17:25:49,813 WARN L623 FunctionHandler]: Unknown extern function usb_driver_set_configuration [2022-11-25 17:25:49,814 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,815 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 17:25:49,815 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 17:25:49,816 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 17:25:49,816 WARN L623 FunctionHandler]: Unknown extern function __kfifo_alloc [2022-11-25 17:25:49,817 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,817 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:25:49,826 WARN L623 FunctionHandler]: Unknown extern function __kfifo_free [2022-11-25 17:25:49,826 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:25:49,827 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:25:49,828 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,830 WARN L623 FunctionHandler]: Unknown extern function __kfifo_free [2022-11-25 17:25:49,830 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:25:49,831 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:25:49,832 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,842 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-11-25 17:25:49,843 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,844 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,855 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 17:25:49,855 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,856 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,858 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,860 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,862 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,865 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,866 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,867 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,869 WARN L623 FunctionHandler]: Unknown extern function usb_clear_halt [2022-11-25 17:25:49,871 WARN L623 FunctionHandler]: Unknown extern function usb_clear_halt [2022-11-25 17:25:49,875 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,881 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,882 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,884 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,885 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,893 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,900 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 17:25:49,901 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,902 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:25:49,954 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:25:49,955 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,956 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,963 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:25:49,963 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:25:49,964 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,965 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,966 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_interruptible_nested [2022-11-25 17:25:49,971 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 17:25:49,974 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:25:49,975 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,976 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,977 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,978 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:25:49,979 WARN L623 FunctionHandler]: Unknown extern function __kfifo_in_r [2022-11-25 17:25:49,979 WARN L623 FunctionHandler]: Unknown extern function __kfifo_in [2022-11-25 17:25:49,980 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,982 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:25:49,983 WARN L623 FunctionHandler]: Unknown extern function __kfifo_max_r [2022-11-25 17:25:49,984 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,985 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,986 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:25:49,987 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,990 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,995 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,996 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:49,997 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,998 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:49,999 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,000 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,002 WARN L623 FunctionHandler]: Unknown extern function interruptible_sleep_on [2022-11-25 17:25:50,007 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,016 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,016 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,017 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,018 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:50,022 WARN L623 FunctionHandler]: Unknown extern function tty_get_baud_rate [2022-11-25 17:25:50,023 WARN L623 FunctionHandler]: Unknown extern function tty_encode_baud_rate [2022-11-25 17:25:50,023 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,027 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:50,029 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:50,029 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:25:50,031 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,032 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:25:50,034 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,050 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,050 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:25:50,053 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,058 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,060 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,061 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,061 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:50,062 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,062 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:50,063 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,064 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:50,065 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:50,066 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,066 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:50,067 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 17:25:50,068 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:50,069 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,070 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,070 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 17:25:50,072 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:50,073 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 17:25:50,074 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:50,074 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_get [2022-11-25 17:25:50,076 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,079 WARN L623 FunctionHandler]: Unknown extern function tty_kref_put [2022-11-25 17:25:50,083 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 17:25:50,084 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:50,085 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,086 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,087 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 17:25:50,087 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:50,088 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 17:25:50,089 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:50,089 WARN L623 FunctionHandler]: Unknown extern function tty_flip_buffer_push [2022-11-25 17:25:50,091 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_get [2022-11-25 17:25:50,091 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,092 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:25:50,093 WARN L623 FunctionHandler]: Unknown extern function __kfifo_out_r [2022-11-25 17:25:50,093 WARN L623 FunctionHandler]: Unknown extern function __kfifo_out [2022-11-25 17:25:50,101 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 17:25:50,102 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:50,103 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:25:50,104 WARN L623 FunctionHandler]: Unknown extern function tty_wakeup [2022-11-25 17:25:50,104 WARN L623 FunctionHandler]: Unknown extern function tty_kref_put [2022-11-25 17:25:50,104 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 17:25:50,105 WARN L623 FunctionHandler]: Unknown extern function tty_kref_put [2022-11-25 17:25:50,110 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:25:50,114 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,115 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:50,116 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:50,116 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,117 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:25:50,121 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,121 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:25:50,123 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 17:25:50,123 WARN L623 FunctionHandler]: Unknown extern function tty_port_tty_get [2022-11-25 17:25:50,124 WARN L623 FunctionHandler]: Unknown extern function tty_wakeup [2022-11-25 17:25:50,125 WARN L623 FunctionHandler]: Unknown extern function tty_kref_put [2022-11-25 17:25:50,129 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,130 WARN L623 FunctionHandler]: Unknown extern function add_wait_queue [2022-11-25 17:25:50,131 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-25 17:25:50,132 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-11-25 17:25:50,134 WARN L623 FunctionHandler]: Unknown extern function __xchg_wrong_size [2022-11-25 17:25:50,134 WARN L623 FunctionHandler]: Unknown extern function remove_wait_queue [2022-11-25 17:25:50,135 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:25:50,136 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:25:50,137 WARN L623 FunctionHandler]: Unknown extern function msleep_interruptible [2022-11-25 17:25:50,137 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-11-25 17:25:50,139 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-11-25 17:25:50,141 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:25:50,142 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 17:25:50,149 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-11-25 17:25:50,151 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-11-25 17:25:50,157 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-11-25 17:25:50,158 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,159 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:50,161 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:50,162 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:25:50,163 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,164 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-11-25 17:25:50,166 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,166 WARN L623 FunctionHandler]: Unknown extern function sprintf [2022-11-25 17:25:50,169 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-11-25 17:25:50,171 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-11-25 17:25:50,171 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:50,172 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:50,173 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 17:25:50,174 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,174 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-11-25 17:25:50,175 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 17:25:50,175 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 17:25:50,176 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:25:50,177 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:25:50,179 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 17:25:50,187 WARN L623 FunctionHandler]: Unknown extern function ldv_detach_1 [2022-11-25 17:25:50,187 WARN L623 FunctionHandler]: Unknown extern function ldv_detach_1 [2022-11-25 17:25:50,188 WARN L623 FunctionHandler]: Unknown extern function ldv_probe_1 [2022-11-25 17:25:50,189 WARN L623 FunctionHandler]: Unknown extern function usb_serial_probe [2022-11-25 17:25:50,191 WARN L623 FunctionHandler]: Unknown extern function usb_serial_disconnect [2022-11-25 17:25:50,202 WARN L623 FunctionHandler]: Unknown extern function ldv_detach_2 [2022-11-25 17:25:50,202 WARN L623 FunctionHandler]: Unknown extern function ldv_detach_2 [2022-11-25 17:25:50,202 WARN L623 FunctionHandler]: Unknown extern function ldv_probe_2 [2022-11-25 17:25:50,203 WARN L623 FunctionHandler]: Unknown extern function ldv_check_final_state [2022-11-25 17:25:50,207 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_71103828-98cc-4f86-b165-8a68333c127b/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point_ldv-val-v0.8.cil.out.i[218543,218556] [2022-11-25 17:25:50,222 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:25:50,228 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:25:50,231 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 17:25:50,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:25:50,318 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:25:50,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:50 WrapperNode [2022-11-25 17:25:50,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:25:50,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:25:50,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:25:50,320 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:25:50,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:50" (1/1) ... [2022-11-25 17:25:50,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:50" (1/1) ... [2022-11-25 17:25:50,647 INFO L138 Inliner]: procedures = 187, calls = 2403, calls flagged for inlining = 71, calls inlined = 71, statements flattened = 4817 [2022-11-25 17:25:50,648 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:25:50,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:25:50,649 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:25:50,649 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:25:50,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:50" (1/1) ... [2022-11-25 17:25:50,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:50" (1/1) ... [2022-11-25 17:25:50,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:50" (1/1) ... [2022-11-25 17:25:50,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:50" (1/1) ... [2022-11-25 17:25:50,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:50" (1/1) ... [2022-11-25 17:25:50,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:50" (1/1) ... [2022-11-25 17:25:50,916 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:50" (1/1) ... [2022-11-25 17:25:50,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:50" (1/1) ... [2022-11-25 17:25:50,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:25:50,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:25:50,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:25:50,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:25:50,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:50" (1/1) ... [2022-11-25 17:25:50,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:25:50,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:25:51,015 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:25:51,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:25:51,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-25 17:25:51,069 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-25 17:25:51,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 17:25:51,069 INFO L130 BoogieDeclarations]: Found specification of procedure ti_bulk_in_callback [2022-11-25 17:25:51,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_bulk_in_callback [2022-11-25 17:25:51,069 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-25 17:25:51,069 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-25 17:25:51,070 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-25 17:25:51,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 17:25:51,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 17:25:51,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 17:25:51,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 17:25:51,070 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:25:51,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 17:25:51,071 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 17:25:51,071 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2022-11-25 17:25:51,071 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2022-11-25 17:25:51,071 INFO L130 BoogieDeclarations]: Found specification of procedure ti_throttle [2022-11-25 17:25:51,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_throttle [2022-11-25 17:25:51,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_serial_deregister [2022-11-25 17:25:51,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_serial_deregister [2022-11-25 17:25:51,072 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_port_data [2022-11-25 17:25:51,072 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_port_data [2022-11-25 17:25:51,072 INFO L130 BoogieDeclarations]: Found specification of procedure ti_command_out_sync [2022-11-25 17:25:51,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_command_out_sync [2022-11-25 17:25:51,072 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-25 17:25:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-25 17:25:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-25 17:25:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-25 17:25:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 17:25:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 17:25:51,073 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-25 17:25:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-25 17:25:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure ti_open [2022-11-25 17:25:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_open [2022-11-25 17:25:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure ti_bulk_out_callback [2022-11-25 17:25:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_bulk_out_callback [2022-11-25 17:25:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-25 17:25:51,074 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-25 17:25:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure ti_tiocmset [2022-11-25 17:25:51,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_tiocmset [2022-11-25 17:25:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 17:25:51,075 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 17:25:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_port_data [2022-11-25 17:25:51,075 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_port_data [2022-11-25 17:25:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure ti_set_mcr [2022-11-25 17:25:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_set_mcr [2022-11-25 17:25:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:25:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-25 17:25:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-25 17:25:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-25 17:25:51,076 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-25 17:25:51,076 INFO L130 BoogieDeclarations]: Found specification of procedure ti_write_byte [2022-11-25 17:25:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_write_byte [2022-11-25 17:25:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure ti_chars_in_buffer [2022-11-25 17:25:51,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_chars_in_buffer [2022-11-25 17:25:51,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 17:25:51,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 17:25:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-25 17:25:51,078 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-25 17:25:51,078 INFO L130 BoogieDeclarations]: Found specification of procedure ti_startup [2022-11-25 17:25:51,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_startup [2022-11-25 17:25:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-25 17:25:51,079 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-25 17:25:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure ti_ioctl [2022-11-25 17:25:51,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_ioctl [2022-11-25 17:25:51,079 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_register [2022-11-25 17:25:51,079 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_register [2022-11-25 17:25:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure ti_write_room [2022-11-25 17:25:51,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_write_room [2022-11-25 17:25:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-25 17:25:51,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-25 17:25:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 17:25:51,080 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 17:25:51,080 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_2 [2022-11-25 17:25:51,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_2 [2022-11-25 17:25:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_detach_1 [2022-11-25 17:25:51,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_detach_1 [2022-11-25 17:25:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure ti_tiocmget [2022-11-25 17:25:51,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_tiocmget [2022-11-25 17:25:51,081 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2022-11-25 17:25:51,082 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2022-11-25 17:25:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:25:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_free [2022-11-25 17:25:51,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_free [2022-11-25 17:25:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2022-11-25 17:25:51,082 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2022-11-25 17:25:51,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-25 17:25:51,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-25 17:25:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-25 17:25:51,083 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-25 17:25:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure ti_interrupt_callback [2022-11-25 17:25:51,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_interrupt_callback [2022-11-25 17:25:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:25:51,083 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2022-11-25 17:25:51,084 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2022-11-25 17:25:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-25 17:25:51,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-25 17:25:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:25:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 17:25:51,084 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-25 17:25:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_data [2022-11-25 17:25:51,085 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_data [2022-11-25 17:25:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure ti_close [2022-11-25 17:25:51,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_close [2022-11-25 17:25:51,085 INFO L130 BoogieDeclarations]: Found specification of procedure ti_break [2022-11-25 17:25:51,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_break [2022-11-25 17:25:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-25 17:25:51,086 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-25 17:25:51,086 INFO L130 BoogieDeclarations]: Found specification of procedure __swab16s [2022-11-25 17:25:51,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __swab16s [2022-11-25 17:25:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 17:25:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-25 17:25:51,087 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-25 17:25:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-25 17:25:51,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-25 17:25:51,087 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-11-25 17:25:51,087 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-11-25 17:25:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-25 17:25:51,088 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-25 17:25:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure ti_unthrottle [2022-11-25 17:25:51,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_unthrottle [2022-11-25 17:25:51,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:25:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure ti_write [2022-11-25 17:25:51,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_write [2022-11-25 17:25:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 17:25:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure ti_restart_read [2022-11-25 17:25:51,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_restart_read [2022-11-25 17:25:51,089 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-25 17:25:51,090 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-25 17:25:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure ti_release [2022-11-25 17:25:51,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_release [2022-11-25 17:25:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-25 17:25:51,090 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-25 17:25:51,090 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-25 17:25:51,090 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-25 17:25:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-25 17:25:51,091 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-25 17:25:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2022-11-25 17:25:51,091 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2022-11-25 17:25:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-25 17:25:51,091 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-25 17:25:51,091 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-25 17:25:51,092 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-25 17:25:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-25 17:25:51,092 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-25 17:25:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure ti_send [2022-11-25 17:25:51,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_send [2022-11-25 17:25:51,092 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2022-11-25 17:25:51,092 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2022-11-25 17:25:51,093 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-25 17:25:51,093 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-25 17:25:51,093 INFO L130 BoogieDeclarations]: Found specification of procedure ti_drain [2022-11-25 17:25:51,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_drain [2022-11-25 17:25:51,093 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-25 17:25:51,093 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-25 17:25:51,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:25:51,094 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2022-11-25 17:25:51,094 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2022-11-25 17:25:51,094 INFO L130 BoogieDeclarations]: Found specification of procedure ti_set_termios [2022-11-25 17:25:51,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ti_set_termios [2022-11-25 17:25:51,094 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_serial_data [2022-11-25 17:25:51,094 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_serial_data [2022-11-25 17:25:51,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 17:25:51,095 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-25 17:25:51,095 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-25 17:25:51,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:25:51,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:25:51,873 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:25:51,877 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:25:52,550 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 17:26:50,072 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:26:50,101 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:26:50,104 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:26:50,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:26:50 BoogieIcfgContainer [2022-11-25 17:26:50,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:26:50,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:26:50,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:26:50,120 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:26:50,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:25:47" (1/3) ... [2022-11-25 17:26:50,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a1c66c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:26:50, skipping insertion in model container [2022-11-25 17:26:50,124 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:25:50" (2/3) ... [2022-11-25 17:26:50,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a1c66c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:26:50, skipping insertion in model container [2022-11-25 17:26:50,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:26:50" (3/3) ... [2022-11-25 17:26:50,126 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-5742d35-1-136_1a-drivers--usb--serial--ti_usb_3410_5052.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-11-25 17:26:50,148 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:26:50,149 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:26:50,268 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:26:50,277 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=PETRI_NET, 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;@61823d70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:26:50,277 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:26:50,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 1536 states, 1111 states have (on average 1.423042304230423) internal successors, (1581), 1135 states have internal predecessors, (1581), 349 states have call successors, (349), 75 states have call predecessors, (349), 74 states have return successors, (343), 341 states have call predecessors, (343), 343 states have call successors, (343) [2022-11-25 17:26:50,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-11-25 17:26:50,325 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:26:50,326 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:26:50,328 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_usb_serial_deregisterErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_usb_serial_deregisterErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:26:50,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:26:50,336 INFO L85 PathProgramCache]: Analyzing trace with hash 858693603, now seen corresponding path program 1 times [2022-11-25 17:26:50,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:26:50,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615120629] [2022-11-25 17:26:50,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:26:50,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:26:51,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:26:51,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:26:51,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:26:51,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:26:51,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:26:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:26:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:26:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:26:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:26:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:26:51,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:26:51,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:26:51,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:26:51,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:26:51,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:26:51,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 17:26:51,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:26:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 17:26:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:26:51,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 17:26:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:26:51,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-25 17:26:51,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:26:51,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-25 17:26:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:26:51,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:51,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-25 17:26:52,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:52,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:26:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:52,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-25 17:26:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:52,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:26:52,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:52,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-25 17:26:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:52,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:26:52,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:52,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-25 17:26:52,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:52,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:26:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:52,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-25 17:26:52,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:52,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:26:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:52,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-25 17:26:52,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:52,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:26:52,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:52,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-11-25 17:26:52,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:52,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:26:52,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:26:52,193 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 734 trivial. 0 not checked. [2022-11-25 17:26:52,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:26:52,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615120629] [2022-11-25 17:26:52,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615120629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:26:52,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:26:52,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 17:26:52,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218402151] [2022-11-25 17:26:52,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:26:52,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:26:52,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:26:52,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:26:52,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:26:52,273 INFO L87 Difference]: Start difference. First operand has 1536 states, 1111 states have (on average 1.423042304230423) internal successors, (1581), 1135 states have internal predecessors, (1581), 349 states have call successors, (349), 75 states have call predecessors, (349), 74 states have return successors, (343), 341 states have call predecessors, (343), 343 states have call successors, (343) Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-25 17:26:54,381 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 [] [2022-11-25 17:26:56,432 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:26:58,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:27:14,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:27:14,324 INFO L93 Difference]: Finished difference Result 3420 states and 5423 transitions. [2022-11-25 17:27:14,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:27:14,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 224 [2022-11-25 17:27:14,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:27:14,368 INFO L225 Difference]: With dead ends: 3420 [2022-11-25 17:27:14,368 INFO L226 Difference]: Without dead ends: 1871 [2022-11-25 17:27:14,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:27:14,393 INFO L413 NwaCegarLoop]: 2167 mSDtfsCounter, 1086 mSDsluCounter, 3052 mSDsCounter, 0 mSdLazyCounter, 2292 mSolverCounterSat, 869 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1140 SdHoareTripleChecker+Valid, 5219 SdHoareTripleChecker+Invalid, 3164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 869 IncrementalHoareTripleChecker+Valid, 2292 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:27:14,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1140 Valid, 5219 Invalid, 3164 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [869 Valid, 2292 Invalid, 3 Unknown, 0 Unchecked, 21.5s Time] [2022-11-25 17:27:14,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871 states. [2022-11-25 17:27:14,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1871 to 1519. [2022-11-25 17:27:14,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1101 states have (on average 1.4141689373297002) internal successors, (1557), 1119 states have internal predecessors, (1557), 343 states have call successors, (343), 74 states have call predecessors, (343), 74 states have return successors, (342), 340 states have call predecessors, (342), 342 states have call successors, (342) [2022-11-25 17:27:14,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2242 transitions. [2022-11-25 17:27:14,593 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2242 transitions. Word has length 224 [2022-11-25 17:27:14,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:27:14,593 INFO L495 AbstractCegarLoop]: Abstraction has 1519 states and 2242 transitions. [2022-11-25 17:27:14,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 2 states have internal predecessors, (43), 2 states have call successors, (21), 5 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-25 17:27:14,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2242 transitions. [2022-11-25 17:27:14,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2022-11-25 17:27:14,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:27:14,599 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:27:14,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:27:14,600 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_usb_serial_deregisterErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_usb_serial_deregisterErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:27:14,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:27:14,601 INFO L85 PathProgramCache]: Analyzing trace with hash -400101651, now seen corresponding path program 1 times [2022-11-25 17:27:14,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:27:14,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241675740] [2022-11-25 17:27:14,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:14,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:27:14,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:27:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:15,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:27:15,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:27:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:27:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:27:15,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:27:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:27:15,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:15,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:27:15,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:27:15,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:27:15,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 17:27:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:15,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 17:27:15,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 17:27:15,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:15,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-25 17:27:15,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-25 17:27:15,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:15,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-25 17:27:15,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:15,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-25 17:27:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-25 17:27:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:15,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-25 17:27:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-25 17:27:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:15,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-25 17:27:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-11-25 17:27:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:15,854 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 734 trivial. 0 not checked. [2022-11-25 17:27:15,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:27:15,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241675740] [2022-11-25 17:27:15,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241675740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:27:15,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:27:15,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:27:15,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862666011] [2022-11-25 17:27:15,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:27:15,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:27:15,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:27:15,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:27:15,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:27:15,862 INFO L87 Difference]: Start difference. First operand 1519 states and 2242 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-25 17:27:17,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:27:19,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:27:22,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:27:24,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:27:36,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:27:40,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:27:43,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:27:43,794 INFO L93 Difference]: Finished difference Result 5093 states and 7901 transitions. [2022-11-25 17:27:43,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:27:43,795 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 224 [2022-11-25 17:27:43,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:27:43,832 INFO L225 Difference]: With dead ends: 5093 [2022-11-25 17:27:43,832 INFO L226 Difference]: Without dead ends: 3616 [2022-11-25 17:27:43,843 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:27:43,844 INFO L413 NwaCegarLoop]: 2277 mSDtfsCounter, 5103 mSDsluCounter, 3807 mSDsCounter, 0 mSdLazyCounter, 3021 mSolverCounterSat, 2218 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5393 SdHoareTripleChecker+Valid, 6084 SdHoareTripleChecker+Invalid, 5244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2218 IncrementalHoareTripleChecker+Valid, 3021 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:27:43,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5393 Valid, 6084 Invalid, 5244 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2218 Valid, 3021 Invalid, 5 Unknown, 0 Unchecked, 27.2s Time] [2022-11-25 17:27:43,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3616 states. [2022-11-25 17:27:44,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3616 to 2927. [2022-11-25 17:27:44,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2927 states, 2132 states have (on average 1.423545966228893) internal successors, (3035), 2169 states have internal predecessors, (3035), 648 states have call successors, (648), 143 states have call predecessors, (648), 146 states have return successors, (684), 644 states have call predecessors, (684), 647 states have call successors, (684) [2022-11-25 17:27:44,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2927 states to 2927 states and 4367 transitions. [2022-11-25 17:27:44,041 INFO L78 Accepts]: Start accepts. Automaton has 2927 states and 4367 transitions. Word has length 224 [2022-11-25 17:27:44,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:27:44,042 INFO L495 AbstractCegarLoop]: Abstraction has 2927 states and 4367 transitions. [2022-11-25 17:27:44,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (21), 5 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-25 17:27:44,043 INFO L276 IsEmpty]: Start isEmpty. Operand 2927 states and 4367 transitions. [2022-11-25 17:27:44,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-11-25 17:27:44,050 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:27:44,051 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-25 17:27:44,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:27:44,054 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_usb_serial_deregisterErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_usb_serial_deregisterErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:27:44,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:27:44,054 INFO L85 PathProgramCache]: Analyzing trace with hash 310567626, now seen corresponding path program 1 times [2022-11-25 17:27:44,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:27:44,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091730650] [2022-11-25 17:27:44,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:27:44,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:27:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:44,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:27:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:44,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:44,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:44,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:27:44,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:44,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:27:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:44,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:44,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:44,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:27:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:44,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:27:44,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:44,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:44,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:44,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:27:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:44,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:27:44,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:44,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:44,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:44,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:27:44,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:44,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:27:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:44,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:44,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:27:44,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:44,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 17:27:44,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 17:27:45,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 17:27:45,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-25 17:27:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-25 17:27:45,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-25 17:27:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-25 17:27:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:45,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-25 17:27:45,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:45,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-25 17:27:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:45,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-25 17:27:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:45,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-25 17:27:45,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-11-25 17:27:45,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:27:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-11-25 17:27:45,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-11-25 17:27:45,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:27:45,248 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked. [2022-11-25 17:27:45,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:27:45,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091730650] [2022-11-25 17:27:45,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091730650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:27:45,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:27:45,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:27:45,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541153325] [2022-11-25 17:27:45,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:27:45,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:27:45,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:27:45,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:27:45,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:27:45,252 INFO L87 Difference]: Start difference. First operand 2927 states and 4367 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-25 17:27:47,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:27:49,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:28:07,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:28:08,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:28:11,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:28:11,012 INFO L93 Difference]: Finished difference Result 7179 states and 11384 transitions. [2022-11-25 17:28:11,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:28:11,013 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 242 [2022-11-25 17:28:11,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:28:11,077 INFO L225 Difference]: With dead ends: 7179 [2022-11-25 17:28:11,077 INFO L226 Difference]: Without dead ends: 7171 [2022-11-25 17:28:11,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:28:11,089 INFO L413 NwaCegarLoop]: 2405 mSDtfsCounter, 4474 mSDsluCounter, 3998 mSDsCounter, 0 mSdLazyCounter, 3232 mSolverCounterSat, 2033 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4758 SdHoareTripleChecker+Valid, 6403 SdHoareTripleChecker+Invalid, 5268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2033 IncrementalHoareTripleChecker+Valid, 3232 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:28:11,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4758 Valid, 6403 Invalid, 5268 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2033 Valid, 3232 Invalid, 3 Unknown, 0 Unchecked, 25.1s Time] [2022-11-25 17:28:11,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7171 states. [2022-11-25 17:28:11,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7171 to 5796. [2022-11-25 17:28:11,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5796 states, 4232 states have (on average 1.4258034026465027) internal successors, (6034), 4305 states have internal predecessors, (6034), 1275 states have call successors, (1275), 284 states have call predecessors, (1275), 288 states have return successors, (1348), 1266 states have call predecessors, (1348), 1274 states have call successors, (1348) [2022-11-25 17:28:11,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5796 states to 5796 states and 8657 transitions. [2022-11-25 17:28:11,479 INFO L78 Accepts]: Start accepts. Automaton has 5796 states and 8657 transitions. Word has length 242 [2022-11-25 17:28:11,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:28:11,481 INFO L495 AbstractCegarLoop]: Abstraction has 5796 states and 8657 transitions. [2022-11-25 17:28:11,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-25 17:28:11,482 INFO L276 IsEmpty]: Start isEmpty. Operand 5796 states and 8657 transitions. [2022-11-25 17:28:11,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-11-25 17:28:11,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:28:11,494 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2022-11-25 17:28:11,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:28:11,494 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_usb_serial_deregisterErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_usb_serial_deregisterErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:28:11,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:28:11,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1113488745, now seen corresponding path program 1 times [2022-11-25 17:28:11,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:28:11,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1279222595] [2022-11-25 17:28:11,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:28:11,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:28:11,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:12,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:28:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:12,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:12,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:28:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:12,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:28:12,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:12,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:12,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:12,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:28:12,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:12,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:28:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:12,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:12,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:12,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:28:12,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:12,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:28:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:12,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:12,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:12,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:28:12,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:12,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:28:12,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:12,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:12,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:12,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:28:12,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:12,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 17:28:12,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:12,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:12,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:12,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 17:28:12,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:12,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:12,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 17:28:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:12,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:12,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:12,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-25 17:28:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:12,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:12,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-25 17:28:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:12,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:12,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:13,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-25 17:28:13,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:13,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:13,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-25 17:28:13,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:13,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:13,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:13,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-25 17:28:13,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:13,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:13,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-25 17:28:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:13,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:13,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:13,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-25 17:28:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:13,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:13,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-25 17:28:13,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:13,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:13,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:13,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-11-25 17:28:13,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:13,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:13,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:13,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-11-25 17:28:13,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:13,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-11-25 17:28:13,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:13,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-11-25 17:28:13,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:13,127 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked. [2022-11-25 17:28:13,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:28:13,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1279222595] [2022-11-25 17:28:13,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1279222595] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:28:13,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:28:13,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 17:28:13,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314875138] [2022-11-25 17:28:13,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:28:13,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 17:28:13,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:28:13,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 17:28:13,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-25 17:28:13,131 INFO L87 Difference]: Start difference. First operand 5796 states and 8657 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-25 17:28:15,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:28:17,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:28:19,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:28:39,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:28:39,048 INFO L93 Difference]: Finished difference Result 16968 states and 28466 transitions. [2022-11-25 17:28:39,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 17:28:39,048 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 252 [2022-11-25 17:28:39,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:28:39,173 INFO L225 Difference]: With dead ends: 16968 [2022-11-25 17:28:39,173 INFO L226 Difference]: Without dead ends: 11214 [2022-11-25 17:28:39,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-11-25 17:28:39,222 INFO L413 NwaCegarLoop]: 3033 mSDtfsCounter, 5705 mSDsluCounter, 11377 mSDsCounter, 0 mSdLazyCounter, 4276 mSolverCounterSat, 2853 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6005 SdHoareTripleChecker+Valid, 14410 SdHoareTripleChecker+Invalid, 7132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2853 IncrementalHoareTripleChecker+Valid, 4276 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:28:39,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6005 Valid, 14410 Invalid, 7132 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2853 Valid, 4276 Invalid, 3 Unknown, 0 Unchecked, 25.1s Time] [2022-11-25 17:28:39,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11214 states. [2022-11-25 17:28:39,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11214 to 5800. [2022-11-25 17:28:39,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5800 states, 4236 states have (on average 1.4254013220018886) internal successors, (6038), 4309 states have internal predecessors, (6038), 1275 states have call successors, (1275), 284 states have call predecessors, (1275), 288 states have return successors, (1348), 1266 states have call predecessors, (1348), 1274 states have call successors, (1348) [2022-11-25 17:28:39,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5800 states to 5800 states and 8661 transitions. [2022-11-25 17:28:39,837 INFO L78 Accepts]: Start accepts. Automaton has 5800 states and 8661 transitions. Word has length 252 [2022-11-25 17:28:39,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:28:39,838 INFO L495 AbstractCegarLoop]: Abstraction has 5800 states and 8661 transitions. [2022-11-25 17:28:39,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-25 17:28:39,840 INFO L276 IsEmpty]: Start isEmpty. Operand 5800 states and 8661 transitions. [2022-11-25 17:28:39,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-11-25 17:28:39,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:28:39,855 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2022-11-25 17:28:39,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:28:39,856 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_usb_serial_deregisterErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_usb_serial_deregisterErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:28:39,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:28:39,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1119513810, now seen corresponding path program 1 times [2022-11-25 17:28:39,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:28:39,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875603828] [2022-11-25 17:28:39,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:28:39,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:28:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:28:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:40,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:28:40,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:28:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:28:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:28:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:40,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:28:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:28:40,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:28:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:28:40,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:40,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:28:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 17:28:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 17:28:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:40,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 17:28:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-25 17:28:40,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-25 17:28:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-25 17:28:40,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-25 17:28:40,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-25 17:28:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-25 17:28:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-25 17:28:40,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:40,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-25 17:28:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-11-25 17:28:40,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:28:40,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:40,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-11-25 17:28:40,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:41,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-11-25 17:28:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:41,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-11-25 17:28:41,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:41,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-11-25 17:28:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:41,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-11-25 17:28:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:28:41,178 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 752 trivial. 0 not checked. [2022-11-25 17:28:41,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:28:41,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875603828] [2022-11-25 17:28:41,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875603828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:28:41,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:28:41,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 17:28:41,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013484488] [2022-11-25 17:28:41,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:28:41,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:28:41,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:28:41,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:28:41,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:28:41,182 INFO L87 Difference]: Start difference. First operand 5800 states and 8661 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 17:28:43,286 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 [] [2022-11-25 17:28:45,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:28:47,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:28:58,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:28:58,539 INFO L93 Difference]: Finished difference Result 12020 states and 18926 transitions. [2022-11-25 17:28:58,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:28:58,540 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 278 [2022-11-25 17:28:58,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:28:58,593 INFO L225 Difference]: With dead ends: 12020 [2022-11-25 17:28:58,593 INFO L226 Difference]: Without dead ends: 6262 [2022-11-25 17:28:58,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-25 17:28:58,632 INFO L413 NwaCegarLoop]: 2589 mSDtfsCounter, 4604 mSDsluCounter, 3547 mSDsCounter, 0 mSdLazyCounter, 2165 mSolverCounterSat, 2178 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4844 SdHoareTripleChecker+Valid, 6136 SdHoareTripleChecker+Invalid, 4346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2178 IncrementalHoareTripleChecker+Valid, 2165 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2022-11-25 17:28:58,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4844 Valid, 6136 Invalid, 4346 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2178 Valid, 2165 Invalid, 3 Unknown, 0 Unchecked, 16.8s Time] [2022-11-25 17:28:58,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6262 states. [2022-11-25 17:28:58,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6262 to 4395. [2022-11-25 17:28:58,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4395 states, 3207 states have (on average 1.4222014343623324) internal successors, (4561), 3261 states have internal predecessors, (4561), 970 states have call successors, (970), 216 states have call predecessors, (970), 217 states have return successors, (1006), 962 states have call predecessors, (1006), 969 states have call successors, (1006) [2022-11-25 17:28:59,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4395 states to 4395 states and 6537 transitions. [2022-11-25 17:28:59,004 INFO L78 Accepts]: Start accepts. Automaton has 4395 states and 6537 transitions. Word has length 278 [2022-11-25 17:28:59,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:28:59,009 INFO L495 AbstractCegarLoop]: Abstraction has 4395 states and 6537 transitions. [2022-11-25 17:28:59,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-25 17:28:59,009 INFO L276 IsEmpty]: Start isEmpty. Operand 4395 states and 6537 transitions. [2022-11-25 17:28:59,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2022-11-25 17:28:59,032 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:28:59,032 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 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] [2022-11-25 17:28:59,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:28:59,033 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_usb_serial_deregisterErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_usb_serial_deregisterErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:28:59,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:28:59,033 INFO L85 PathProgramCache]: Analyzing trace with hash -377371397, now seen corresponding path program 1 times [2022-11-25 17:28:59,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:28:59,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783253520] [2022-11-25 17:28:59,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:28:59,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:28:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:00,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:29:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:00,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:00,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:00,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:00,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:00,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:29:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:00,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:00,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:00,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:29:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:00,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:00,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:00,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:00,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:29:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:00,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:00,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:00,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:00,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:29:00,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:00,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:00,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:00,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:00,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 17:29:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-11-25 17:29:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:01,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 17:29:01,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-25 17:29:01,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:01,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-25 17:29:01,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:01,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-25 17:29:01,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-25 17:29:01,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:01,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-25 17:29:01,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-25 17:29:01,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-25 17:29:01,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:01,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-25 17:29:01,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:01,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-11-25 17:29:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-11-25 17:29:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-11-25 17:29:01,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-11-25 17:29:01,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-11-25 17:29:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:01,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-11-25 17:29:01,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:01,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-11-25 17:29:01,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-11-25 17:29:01,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-11-25 17:29:01,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:01,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2022-11-25 17:29:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:01,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:01,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-11-25 17:29:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:01,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:01,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-11-25 17:29:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-11-25 17:29:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:01,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:01,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-11-25 17:29:01,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:01,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:01,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1698 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 1621 trivial. 0 not checked. [2022-11-25 17:29:01,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:29:01,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783253520] [2022-11-25 17:29:01,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783253520] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:29:01,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560194052] [2022-11-25 17:29:01,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:01,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:29:01,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:29:01,643 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:29:01,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:29:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:04,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 6144 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 17:29:04,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:29:05,184 INFO L134 CoverageAnalysis]: Checked inductivity of 1698 backedges. 659 proven. 0 refuted. 0 times theorem prover too weak. 1039 trivial. 0 not checked. [2022-11-25 17:29:05,184 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:29:05,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560194052] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:29:05,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:29:05,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2022-11-25 17:29:05,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562291925] [2022-11-25 17:29:05,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:29:05,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:29:05,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:29:05,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:29:05,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-25 17:29:05,189 INFO L87 Difference]: Start difference. First operand 4395 states and 6537 transitions. Second operand has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 3 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-25 17:29:05,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:29:05,781 INFO L93 Difference]: Finished difference Result 8788 states and 13117 transitions. [2022-11-25 17:29:05,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:29:05,782 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 3 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 402 [2022-11-25 17:29:05,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:29:05,805 INFO L225 Difference]: With dead ends: 8788 [2022-11-25 17:29:05,806 INFO L226 Difference]: Without dead ends: 4404 [2022-11-25 17:29:05,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 530 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-11-25 17:29:05,827 INFO L413 NwaCegarLoop]: 2222 mSDtfsCounter, 6 mSDsluCounter, 8852 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 11074 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:29:05,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 11074 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:29:05,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4404 states. [2022-11-25 17:29:06,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4404 to 4404. [2022-11-25 17:29:06,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4404 states, 3213 states have (on average 1.4223467164643635) internal successors, (4570), 3270 states have internal predecessors, (4570), 970 states have call successors, (970), 216 states have call predecessors, (970), 220 states have return successors, (1009), 962 states have call predecessors, (1009), 969 states have call successors, (1009) [2022-11-25 17:29:06,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4404 states to 4404 states and 6549 transitions. [2022-11-25 17:29:06,125 INFO L78 Accepts]: Start accepts. Automaton has 4404 states and 6549 transitions. Word has length 402 [2022-11-25 17:29:06,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:29:06,126 INFO L495 AbstractCegarLoop]: Abstraction has 4404 states and 6549 transitions. [2022-11-25 17:29:06,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.4) internal successors, (97), 6 states have internal predecessors, (97), 3 states have call successors, (37), 2 states have call predecessors, (37), 4 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-25 17:29:06,126 INFO L276 IsEmpty]: Start isEmpty. Operand 4404 states and 6549 transitions. [2022-11-25 17:29:06,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2022-11-25 17:29:06,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:29:06,148 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 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] [2022-11-25 17:29:06,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:29:06,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:29:06,363 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_usb_serial_deregisterErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_usb_serial_deregisterErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:29:06,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:29:06,363 INFO L85 PathProgramCache]: Analyzing trace with hash 175931199, now seen corresponding path program 1 times [2022-11-25 17:29:06,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:29:06,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775706594] [2022-11-25 17:29:06,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:06,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:29:06,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:29:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:08,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:08,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:29:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:08,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:08,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:29:08,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:08,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:29:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:08,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:08,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:29:08,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:08,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 17:29:08,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:08,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-25 17:29:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-25 17:29:08,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-25 17:29:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:08,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-25 17:29:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-25 17:29:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:08,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-25 17:29:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:08,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-11-25 17:29:08,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:09,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-25 17:29:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:09,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-11-25 17:29:09,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:09,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-25 17:29:09,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-11-25 17:29:09,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-11-25 17:29:09,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-11-25 17:29:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-11-25 17:29:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-11-25 17:29:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:09,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2022-11-25 17:29:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:09,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2022-11-25 17:29:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2022-11-25 17:29:09,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:09,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2022-11-25 17:29:09,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:09,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:09,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-11-25 17:29:09,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:09,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2022-11-25 17:29:09,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:09,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:09,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2022-11-25 17:29:09,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2022-11-25 17:29:09,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:09,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:09,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-11-25 17:29:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:09,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:09,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:09,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 1797 trivial. 0 not checked. [2022-11-25 17:29:09,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:29:09,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775706594] [2022-11-25 17:29:09,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775706594] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:29:09,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531482295] [2022-11-25 17:29:09,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:09,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:29:09,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:29:09,347 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:29:09,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:29:13,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:13,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 6324 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-25 17:29:13,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:29:13,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 692 proven. 1 refuted. 0 times theorem prover too weak. 1215 trivial. 0 not checked. [2022-11-25 17:29:13,340 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:29:14,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1908 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 1797 trivial. 0 not checked. [2022-11-25 17:29:14,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531482295] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:29:14,148 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:29:14,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2022-11-25 17:29:14,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912238474] [2022-11-25 17:29:14,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:29:14,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-25 17:29:14,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:29:14,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-25 17:29:14,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2022-11-25 17:29:14,152 INFO L87 Difference]: Start difference. First operand 4404 states and 6549 transitions. Second operand has 17 states, 15 states have (on average 8.6) internal successors, (129), 13 states have internal predecessors, (129), 4 states have call successors, (93), 6 states have call predecessors, (93), 6 states have return successors, (64), 4 states have call predecessors, (64), 4 states have call successors, (64) [2022-11-25 17:29:16,232 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:29:18,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:29:20,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:29:42,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 17:29:47,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:29:47,613 INFO L93 Difference]: Finished difference Result 10434 states and 16266 transitions. [2022-11-25 17:29:47,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-25 17:29:47,614 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 8.6) internal successors, (129), 13 states have internal predecessors, (129), 4 states have call successors, (93), 6 states have call predecessors, (93), 6 states have return successors, (64), 4 states have call predecessors, (64), 4 states have call successors, (64) Word has length 414 [2022-11-25 17:29:47,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:29:47,646 INFO L225 Difference]: With dead ends: 10434 [2022-11-25 17:29:47,647 INFO L226 Difference]: Without dead ends: 6041 [2022-11-25 17:29:47,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 979 GetRequests, 952 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=141, Invalid=615, Unknown=0, NotChecked=0, Total=756 [2022-11-25 17:29:47,666 INFO L413 NwaCegarLoop]: 1969 mSDtfsCounter, 1565 mSDsluCounter, 15142 mSDsCounter, 0 mSdLazyCounter, 7163 mSolverCounterSat, 1027 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1671 SdHoareTripleChecker+Valid, 17111 SdHoareTripleChecker+Invalid, 8193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1027 IncrementalHoareTripleChecker+Valid, 7163 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.2s IncrementalHoareTripleChecker+Time [2022-11-25 17:29:47,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1671 Valid, 17111 Invalid, 8193 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1027 Valid, 7163 Invalid, 3 Unknown, 0 Unchecked, 32.2s Time] [2022-11-25 17:29:47,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6041 states. [2022-11-25 17:29:47,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6041 to 4412. [2022-11-25 17:29:47,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4412 states, 3219 states have (on average 1.4224914569742155) internal successors, (4579), 3276 states have internal predecessors, (4579), 971 states have call successors, (971), 217 states have call predecessors, (971), 221 states have return successors, (1010), 963 states have call predecessors, (1010), 970 states have call successors, (1010) [2022-11-25 17:29:47,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4412 states to 4412 states and 6560 transitions. [2022-11-25 17:29:48,002 INFO L78 Accepts]: Start accepts. Automaton has 4412 states and 6560 transitions. Word has length 414 [2022-11-25 17:29:48,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:29:48,002 INFO L495 AbstractCegarLoop]: Abstraction has 4412 states and 6560 transitions. [2022-11-25 17:29:48,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 8.6) internal successors, (129), 13 states have internal predecessors, (129), 4 states have call successors, (93), 6 states have call predecessors, (93), 6 states have return successors, (64), 4 states have call predecessors, (64), 4 states have call successors, (64) [2022-11-25 17:29:48,003 INFO L276 IsEmpty]: Start isEmpty. Operand 4412 states and 6560 transitions. [2022-11-25 17:29:48,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-11-25 17:29:48,022 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:29:48,023 INFO L195 NwaCegarLoop]: trace histogram [24, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 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] [2022-11-25 17:29:48,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:29:48,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 17:29:48,246 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_usb_serial_deregisterErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_usb_serial_deregisterErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:29:48,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:29:48,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1611964539, now seen corresponding path program 2 times [2022-11-25 17:29:48,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:29:48,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762485099] [2022-11-25 17:29:48,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:29:48,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:29:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:29:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:50,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:50,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-25 17:29:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:50,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:29:50,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:50,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-25 17:29:50,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-25 17:29:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-25 17:29:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:50,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-25 17:29:50,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:50,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-25 17:29:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:50,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-11-25 17:29:50,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-25 17:29:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:50,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-25 17:29:50,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-11-25 17:29:50,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:50,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-25 17:29:50,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:50,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-11-25 17:29:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:50,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-25 17:29:50,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:50,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-25 17:29:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:50,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-11-25 17:29:50,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:50,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-11-25 17:29:50,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-11-25 17:29:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-11-25 17:29:50,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:50,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-11-25 17:29:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:51,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:51,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-11-25 17:29:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 307 [2022-11-25 17:29:51,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2022-11-25 17:29:51,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2022-11-25 17:29:51,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:51,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:51,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-11-25 17:29:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:51,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2022-11-25 17:29:51,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:51,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:51,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 378 [2022-11-25 17:29:51,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2022-11-25 17:29:51,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:51,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2022-11-25 17:29:51,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 17:29:51,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-25 17:29:51,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:29:51,219 INFO L134 CoverageAnalysis]: Checked inductivity of 2262 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 2094 trivial. 0 not checked. [2022-11-25 17:29:51,220 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:29:51,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762485099] [2022-11-25 17:29:51,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762485099] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:29:51,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180618084] [2022-11-25 17:29:51,220 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:29:51,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:29:51,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:29:51,223 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:29:51,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71103828-98cc-4f86-b165-8a68333c127b/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process