./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_ppp.ko-entry_point.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_296aa145-8eb7-497a-92db-178ef1a529c9/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296aa145-8eb7-497a-92db-178ef1a529c9/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_296aa145-8eb7-497a-92db-178ef1a529c9/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296aa145-8eb7-497a-92db-178ef1a529c9/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_ppp.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296aa145-8eb7-497a-92db-178ef1a529c9/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_296aa145-8eb7-497a-92db-178ef1a529c9/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 790ee47547867d006f1299e2cf5c9d6d26b057091574ae3950813e98f75c3c5e --- 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 15:35:45,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:35:45,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:35:45,572 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:35:45,572 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:35:45,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:35:45,579 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:35:45,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:35:45,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:35:45,591 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:35:45,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:35:45,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:35:45,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:35:45,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:35:45,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:35:45,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:35:45,606 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:35:45,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:35:45,609 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:35:45,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:35:45,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:35:45,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:35:45,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:35:45,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:35:45,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:35:45,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:35:45,637 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:35:45,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:35:45,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:35:45,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:35:45,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:35:45,643 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:35:45,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:35:45,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:35:45,649 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:35:45,649 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:35:45,650 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:35:45,651 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:35:45,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:35:45,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:35:45,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:35:45,655 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296aa145-8eb7-497a-92db-178ef1a529c9/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 15:35:45,697 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:35:45,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:35:45,699 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:35:45,699 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:35:45,700 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:35:45,701 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:35:45,702 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:35:45,702 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:35:45,702 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:35:45,703 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:35:45,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:35:45,704 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:35:45,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:35:45,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:35:45,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:35:45,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:35:45,706 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:35:45,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:35:45,707 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:35:45,707 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:35:45,707 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:35:45,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:35:45,708 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:35:45,708 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:35:45,708 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:35:45,709 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:35:45,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:35:45,709 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:35:45,710 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:35:45,710 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:35:45,710 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:35:45,711 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_296aa145-8eb7-497a-92db-178ef1a529c9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296aa145-8eb7-497a-92db-178ef1a529c9/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 790ee47547867d006f1299e2cf5c9d6d26b057091574ae3950813e98f75c3c5e [2022-11-25 15:35:46,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:35:46,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:35:46,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:35:46,127 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:35:46,128 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:35:46,129 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296aa145-8eb7-497a-92db-178ef1a529c9/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_ppp.ko-entry_point.cil.out.i [2022-11-25 15:35:49,297 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:35:49,808 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:35:49,809 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296aa145-8eb7-497a-92db-178ef1a529c9/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_ppp.ko-entry_point.cil.out.i [2022-11-25 15:35:49,876 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296aa145-8eb7-497a-92db-178ef1a529c9/bin/uautomizer-ZsLfNo2U6R/data/49b52a55e/10248dd23b9c416898b50ee6a81ef88f/FLAGf2d57801e [2022-11-25 15:35:49,896 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296aa145-8eb7-497a-92db-178ef1a529c9/bin/uautomizer-ZsLfNo2U6R/data/49b52a55e/10248dd23b9c416898b50ee6a81ef88f [2022-11-25 15:35:49,899 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:35:49,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:35:49,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:35:49,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:35:49,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:35:49,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:35:49" (1/1) ... [2022-11-25 15:35:49,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354999cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:49, skipping insertion in model container [2022-11-25 15:35:49,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:35:49" (1/1) ... [2022-11-25 15:35:49,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:35:50,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:35:50,651 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 15:35:50,695 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:35:50,740 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 15:35:50,849 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_296aa145-8eb7-497a-92db-178ef1a529c9/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_ppp.ko-entry_point.cil.out.i[152029,152042] [2022-11-25 15:35:50,892 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-11-25 15:35:50,910 WARN L623 FunctionHandler]: Unknown extern function linkwatch_fire_event [2022-11-25 15:35:50,916 WARN L623 FunctionHandler]: Unknown extern function linkwatch_fire_event [2022-11-25 15:35:50,977 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 15:35:50,978 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 15:35:50,982 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-11-25 15:35:50,988 WARN L623 FunctionHandler]: Unknown extern function dev_queue_xmit [2022-11-25 15:35:50,994 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-25 15:35:50,995 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 15:35:50,997 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 15:35:50,998 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 15:35:51,000 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 15:35:51,017 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 15:35:51,020 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 15:35:51,029 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 15:35:51,030 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 15:35:51,038 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 15:35:51,044 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 15:35:51,045 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 15:35:51,049 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 15:35:51,062 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 15:35:51,065 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 15:35:51,067 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-11-25 15:35:51,084 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 15:35:51,089 WARN L623 FunctionHandler]: Unknown extern function attach_hdlc_protocol [2022-11-25 15:35:51,091 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 15:35:51,096 WARN L623 FunctionHandler]: Unknown extern function register_hdlc_protocol [2022-11-25 15:35:51,099 WARN L623 FunctionHandler]: Unknown extern function unregister_hdlc_protocol [2022-11-25 15:35:51,131 WARN L623 FunctionHandler]: Unknown extern function ldv_disconnect_3 [2022-11-25 15:35:51,131 WARN L623 FunctionHandler]: Unknown extern function ldv_disconnect_3 [2022-11-25 15:35:51,132 WARN L623 FunctionHandler]: Unknown extern function ldv_disconnect_3 [2022-11-25 15:35:51,132 WARN L623 FunctionHandler]: Unknown extern function ldv_release_3 [2022-11-25 15:35:51,133 WARN L623 FunctionHandler]: Unknown extern function ldv_open_3 [2022-11-25 15:35:51,134 WARN L623 FunctionHandler]: Unknown extern function ldv_setup_3 [2022-11-25 15:35:51,136 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-11-25 15:35:51,137 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-11-25 15:35:51,137 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-11-25 15:35:51,138 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-11-25 15:35:51,138 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-11-25 15:35:51,139 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_alloc [2022-11-25 15:35:51,140 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_alloc [2022-11-25 15:35:51,140 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 15:35:51,141 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 15:35:51,142 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-11-25 15:35:51,206 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_alloc [2022-11-25 15:35:51,221 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:35:51,221 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:35:51,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:35:51,260 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:35:51,433 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 15:35:51,435 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:35:51,439 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 15:35:51,455 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_296aa145-8eb7-497a-92db-178ef1a529c9/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_ppp.ko-entry_point.cil.out.i[152029,152042] [2022-11-25 15:35:51,461 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-11-25 15:35:51,464 WARN L623 FunctionHandler]: Unknown extern function linkwatch_fire_event [2022-11-25 15:35:51,465 WARN L623 FunctionHandler]: Unknown extern function linkwatch_fire_event [2022-11-25 15:35:51,474 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 15:35:51,477 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 15:35:51,478 WARN L623 FunctionHandler]: Unknown extern function skb_push [2022-11-25 15:35:51,480 WARN L623 FunctionHandler]: Unknown extern function dev_queue_xmit [2022-11-25 15:35:51,482 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-25 15:35:51,484 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 15:35:51,491 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 15:35:51,493 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 15:35:51,502 WARN L623 FunctionHandler]: Unknown extern function skb_queue_tail [2022-11-25 15:35:51,524 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 15:35:51,531 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 15:35:51,543 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 15:35:51,546 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 15:35:51,554 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 15:35:51,563 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 15:35:51,564 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 15:35:51,582 WARN L623 FunctionHandler]: Unknown extern function skb_pull [2022-11-25 15:35:51,588 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-25 15:35:51,591 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-25 15:35:51,595 WARN L623 FunctionHandler]: Unknown extern function add_timer [2022-11-25 15:35:51,605 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-25 15:35:51,610 WARN L623 FunctionHandler]: Unknown extern function attach_hdlc_protocol [2022-11-25 15:35:51,611 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 15:35:51,613 WARN L623 FunctionHandler]: Unknown extern function register_hdlc_protocol [2022-11-25 15:35:51,613 WARN L623 FunctionHandler]: Unknown extern function unregister_hdlc_protocol [2022-11-25 15:35:51,652 WARN L623 FunctionHandler]: Unknown extern function ldv_disconnect_3 [2022-11-25 15:35:51,652 WARN L623 FunctionHandler]: Unknown extern function ldv_disconnect_3 [2022-11-25 15:35:51,653 WARN L623 FunctionHandler]: Unknown extern function ldv_disconnect_3 [2022-11-25 15:35:51,653 WARN L623 FunctionHandler]: Unknown extern function ldv_release_3 [2022-11-25 15:35:51,654 WARN L623 FunctionHandler]: Unknown extern function ldv_open_3 [2022-11-25 15:35:51,654 WARN L623 FunctionHandler]: Unknown extern function ldv_setup_3 [2022-11-25 15:35:51,655 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-11-25 15:35:51,656 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-11-25 15:35:51,656 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-11-25 15:35:51,656 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-11-25 15:35:51,657 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_free [2022-11-25 15:35:51,657 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_alloc [2022-11-25 15:35:51,657 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_alloc [2022-11-25 15:35:51,658 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 15:35:51,658 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-11-25 15:35:51,662 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-11-25 15:35:51,671 WARN L623 FunctionHandler]: Unknown extern function ldv_skb_alloc [2022-11-25 15:35:51,679 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:35:51,680 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-25 15:35:51,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:35:51,748 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:35:51,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:51 WrapperNode [2022-11-25 15:35:51,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:35:51,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:35:51,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:35:51,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:35:51,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:51" (1/1) ... [2022-11-25 15:35:51,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:51" (1/1) ... [2022-11-25 15:35:51,921 INFO L138 Inliner]: procedures = 134, calls = 555, calls flagged for inlining = 53, calls inlined = 50, statements flattened = 1647 [2022-11-25 15:35:51,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:35:51,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:35:51,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:35:51,923 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:35:51,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:51" (1/1) ... [2022-11-25 15:35:51,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:51" (1/1) ... [2022-11-25 15:35:51,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:51" (1/1) ... [2022-11-25 15:35:51,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:51" (1/1) ... [2022-11-25 15:35:51,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:51" (1/1) ... [2022-11-25 15:35:52,010 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:51" (1/1) ... [2022-11-25 15:35:52,018 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:51" (1/1) ... [2022-11-25 15:35:52,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:51" (1/1) ... [2022-11-25 15:35:52,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:35:52,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:35:52,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:35:52,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:35:52,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:51" (1/1) ... [2022-11-25 15:35:52,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:35:52,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296aa145-8eb7-497a-92db-178ef1a529c9/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:35:52,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296aa145-8eb7-497a-92db-178ef1a529c9/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:35:52,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296aa145-8eb7-497a-92db-178ef1a529c9/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:35:52,158 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_hard_header [2022-11-25 15:35:52,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_hard_header [2022-11-25 15:35:52,158 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-25 15:35:52,158 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-25 15:35:52,159 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_rx [2022-11-25 15:35:52,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_rx [2022-11-25 15:35:52,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 15:35:52,159 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_type_trans [2022-11-25 15:35:52,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_type_trans [2022-11-25 15:35:52,160 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2022-11-25 15:35:52,160 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2022-11-25 15:35:52,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 15:35:52,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 15:35:52,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 15:35:52,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 15:35:52,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 15:35:52,161 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2022-11-25 15:35:52,162 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2022-11-25 15:35:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 15:35:52,166 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 15:35:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_3 [2022-11-25 15:35:52,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_3 [2022-11-25 15:35:52,166 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 15:35:52,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 15:35:52,167 INFO L130 BoogieDeclarations]: Found specification of procedure netif_dormant_on [2022-11-25 15:35:52,167 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_dormant_on [2022-11-25 15:35:52,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-11-25 15:35:52,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-11-25 15:35:52,173 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-25 15:35:52,173 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-25 15:35:52,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 15:35:52,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-25 15:35:52,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-25 15:35:52,174 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_tx_flush [2022-11-25 15:35:52,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_tx_flush [2022-11-25 15:35:52,174 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-11-25 15:35:52,174 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-11-25 15:35:52,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 15:35:52,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 15:35:52,175 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-25 15:35:52,175 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-25 15:35:52,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 15:35:52,175 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-25 15:35:52,175 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-25 15:35:52,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:35:52,175 INFO L130 BoogieDeclarations]: Found specification of procedure get_ppp [2022-11-25 15:35:52,175 INFO L138 BoogieDeclarations]: Found implementation of procedure get_ppp [2022-11-25 15:35:52,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:35:52,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 15:35:52,176 INFO L130 BoogieDeclarations]: Found specification of procedure get_proto [2022-11-25 15:35:52,176 INFO L138 BoogieDeclarations]: Found implementation of procedure get_proto [2022-11-25 15:35:52,176 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-25 15:35:52,176 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-11-25 15:35:52,176 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-11-25 15:35:52,176 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_tx_cp [2022-11-25 15:35:52,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_tx_cp [2022-11-25 15:35:52,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 15:35:52,177 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-25 15:35:52,177 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-25 15:35:52,177 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-25 15:35:52,178 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-25 15:35:52,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:35:52,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 15:35:52,179 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_cp_event [2022-11-25 15:35:52,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_cp_event [2022-11-25 15:35:52,179 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-25 15:35:52,179 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-25 15:35:52,179 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-25 15:35:52,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-25 15:35:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-25 15:35:52,180 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-25 15:35:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2022-11-25 15:35:52,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2022-11-25 15:35:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure proto_name [2022-11-25 15:35:52,180 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_name [2022-11-25 15:35:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:35:52,180 INFO L130 BoogieDeclarations]: Found specification of procedure linkwatch_fire_event [2022-11-25 15:35:52,180 INFO L138 BoogieDeclarations]: Found implementation of procedure linkwatch_fire_event [2022-11-25 15:35:52,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 15:35:52,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-25 15:35:52,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-25 15:35:52,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:35:52,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:35:52,696 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:35:52,699 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:35:53,357 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 15:35:54,447 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:35:54,471 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:35:54,471 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 15:35:54,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:35:54 BoogieIcfgContainer [2022-11-25 15:35:54,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:35:54,480 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:35:54,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:35:54,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:35:54,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:35:49" (1/3) ... [2022-11-25 15:35:54,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32bb6414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:35:54, skipping insertion in model container [2022-11-25 15:35:54,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:35:51" (2/3) ... [2022-11-25 15:35:54,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32bb6414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:35:54, skipping insertion in model container [2022-11-25 15:35:54,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:35:54" (3/3) ... [2022-11-25 15:35:54,494 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_ppp.ko-entry_point.cil.out.i [2022-11-25 15:35:54,519 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:35:54,519 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 15:35:54,655 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:35:54,664 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;@524bc4b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:35:54,665 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 15:35:54,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 593 states, 433 states have (on average 1.4133949191685913) internal successors, (612), 454 states have internal predecessors, (612), 126 states have call successors, (126), 33 states have call predecessors, (126), 32 states have return successors, (122), 115 states have call predecessors, (122), 122 states have call successors, (122) [2022-11-25 15:35:54,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-25 15:35:54,701 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:35:54,702 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 15:35:54,703 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:35:54,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:35:54,711 INFO L85 PathProgramCache]: Analyzing trace with hash 461964592, now seen corresponding path program 1 times [2022-11-25 15:35:54,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:35:54,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892478584] [2022-11-25 15:35:54,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:54,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:35:55,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:55,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:35:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:55,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:35:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:55,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:35:55,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:55,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 15:35:55,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:55,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 15:35:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:55,496 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-25 15:35:55,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:35:55,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892478584] [2022-11-25 15:35:55,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892478584] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:35:55,498 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:35:55,498 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 15:35:55,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791802021] [2022-11-25 15:35:55,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:35:55,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:35:55,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:35:55,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:35:55,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:35:55,579 INFO L87 Difference]: Start difference. First operand has 593 states, 433 states have (on average 1.4133949191685913) internal successors, (612), 454 states have internal predecessors, (612), 126 states have call successors, (126), 33 states have call predecessors, (126), 32 states have return successors, (122), 115 states have call predecessors, (122), 122 states have call successors, (122) Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-25 15:35:58,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:35:58,549 INFO L93 Difference]: Finished difference Result 1924 states and 3013 transitions. [2022-11-25 15:35:58,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:35:58,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 47 [2022-11-25 15:35:58,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:35:58,589 INFO L225 Difference]: With dead ends: 1924 [2022-11-25 15:35:58,590 INFO L226 Difference]: Without dead ends: 1316 [2022-11-25 15:35:58,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:35:58,613 INFO L413 NwaCegarLoop]: 899 mSDtfsCounter, 1201 mSDsluCounter, 1225 mSDsCounter, 0 mSdLazyCounter, 685 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 2124 SdHoareTripleChecker+Invalid, 1010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 685 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-25 15:35:58,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1263 Valid, 2124 Invalid, 1010 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [325 Valid, 685 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-25 15:35:58,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1316 states. [2022-11-25 15:35:58,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1316 to 1124. [2022-11-25 15:35:58,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1124 states, 827 states have (on average 1.4014510278113663) internal successors, (1159), 857 states have internal predecessors, (1159), 234 states have call successors, (234), 63 states have call predecessors, (234), 62 states have return successors, (233), 219 states have call predecessors, (233), 233 states have call successors, (233) [2022-11-25 15:35:58,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1124 states to 1124 states and 1626 transitions. [2022-11-25 15:35:58,836 INFO L78 Accepts]: Start accepts. Automaton has 1124 states and 1626 transitions. Word has length 47 [2022-11-25 15:35:58,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:35:58,837 INFO L495 AbstractCegarLoop]: Abstraction has 1124 states and 1626 transitions. [2022-11-25 15:35:58,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-11-25 15:35:58,837 INFO L276 IsEmpty]: Start isEmpty. Operand 1124 states and 1626 transitions. [2022-11-25 15:35:58,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-25 15:35:58,843 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:35:58,843 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-25 15:35:58,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:35:58,844 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:35:58,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:35:58,845 INFO L85 PathProgramCache]: Analyzing trace with hash -203116028, now seen corresponding path program 1 times [2022-11-25 15:35:58,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:35:58,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775671442] [2022-11-25 15:35:58,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:35:58,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:35:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:59,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:35:59,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:59,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:35:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:59,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:35:59,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:59,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 15:35:59,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:59,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 15:35:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:59,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-25 15:35:59,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:59,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-25 15:35:59,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:35:59,089 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-11-25 15:35:59,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:35:59,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775671442] [2022-11-25 15:35:59,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775671442] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:35:59,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:35:59,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 15:35:59,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567858691] [2022-11-25 15:35:59,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:35:59,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:35:59,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:35:59,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:35:59,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:35:59,141 INFO L87 Difference]: Start difference. First operand 1124 states and 1626 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-25 15:36:01,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:01,126 INFO L93 Difference]: Finished difference Result 2425 states and 3576 transitions. [2022-11-25 15:36:01,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:36:01,127 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 62 [2022-11-25 15:36:01,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:01,144 INFO L225 Difference]: With dead ends: 2425 [2022-11-25 15:36:01,144 INFO L226 Difference]: Without dead ends: 1315 [2022-11-25 15:36:01,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:36:01,156 INFO L413 NwaCegarLoop]: 949 mSDtfsCounter, 1230 mSDsluCounter, 1306 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1281 SdHoareTripleChecker+Valid, 2255 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:01,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1281 Valid, 2255 Invalid, 938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-25 15:36:01,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2022-11-25 15:36:01,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1123. [2022-11-25 15:36:01,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1123 states, 826 states have (on average 1.3983050847457628) internal successors, (1155), 856 states have internal predecessors, (1155), 234 states have call successors, (234), 63 states have call predecessors, (234), 62 states have return successors, (233), 219 states have call predecessors, (233), 233 states have call successors, (233) [2022-11-25 15:36:01,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1123 states to 1123 states and 1622 transitions. [2022-11-25 15:36:01,330 INFO L78 Accepts]: Start accepts. Automaton has 1123 states and 1622 transitions. Word has length 62 [2022-11-25 15:36:01,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:01,331 INFO L495 AbstractCegarLoop]: Abstraction has 1123 states and 1622 transitions. [2022-11-25 15:36:01,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-11-25 15:36:01,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1123 states and 1622 transitions. [2022-11-25 15:36:01,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-25 15:36:01,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:01,343 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 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] [2022-11-25 15:36:01,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 15:36:01,343 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:36:01,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:01,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1442675309, now seen corresponding path program 1 times [2022-11-25 15:36:01,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:01,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48779065] [2022-11-25 15:36:01,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:01,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:01,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:01,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:36:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:01,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:36:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:01,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:36:01,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:01,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 15:36:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:01,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 15:36:01,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:01,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-25 15:36:01,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:01,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-25 15:36:01,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:01,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 15:36:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:01,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 15:36:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:01,860 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-11-25 15:36:01,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:01,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48779065] [2022-11-25 15:36:01,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48779065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:01,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:36:01,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 15:36:01,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139743214] [2022-11-25 15:36:01,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:01,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 15:36:01,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:01,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 15:36:01,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:36:01,874 INFO L87 Difference]: Start difference. First operand 1123 states and 1622 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 15:36:04,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:04,665 INFO L93 Difference]: Finished difference Result 3722 states and 5707 transitions. [2022-11-25 15:36:04,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 15:36:04,666 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 83 [2022-11-25 15:36:04,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:04,696 INFO L225 Difference]: With dead ends: 3722 [2022-11-25 15:36:04,696 INFO L226 Difference]: Without dead ends: 2608 [2022-11-25 15:36:04,712 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-25 15:36:04,718 INFO L413 NwaCegarLoop]: 925 mSDtfsCounter, 1191 mSDsluCounter, 2954 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 319 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 3879 SdHoareTripleChecker+Invalid, 1572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 319 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:04,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1253 Valid, 3879 Invalid, 1572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [319 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-25 15:36:04,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2608 states. [2022-11-25 15:36:04,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2608 to 2370. [2022-11-25 15:36:04,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2370 states, 1755 states have (on average 1.4062678062678062) internal successors, (2468), 1821 states have internal predecessors, (2468), 478 states have call successors, (478), 125 states have call predecessors, (478), 136 states have return successors, (599), 455 states have call predecessors, (599), 477 states have call successors, (599) [2022-11-25 15:36:04,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2370 states to 2370 states and 3545 transitions. [2022-11-25 15:36:04,922 INFO L78 Accepts]: Start accepts. Automaton has 2370 states and 3545 transitions. Word has length 83 [2022-11-25 15:36:04,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:04,924 INFO L495 AbstractCegarLoop]: Abstraction has 2370 states and 3545 transitions. [2022-11-25 15:36:04,924 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 5 states have internal predecessors, (42), 3 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 15:36:04,924 INFO L276 IsEmpty]: Start isEmpty. Operand 2370 states and 3545 transitions. [2022-11-25 15:36:04,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-25 15:36:04,935 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:04,936 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:04,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 15:36:04,940 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:36:04,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:04,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1545482870, now seen corresponding path program 1 times [2022-11-25 15:36:04,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:04,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340200251] [2022-11-25 15:36:04,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:04,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:05,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:36:05,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:05,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:36:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:05,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:36:05,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:05,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 15:36:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:05,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 15:36:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:05,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-25 15:36:05,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:05,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:36:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:05,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:05,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:05,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-25 15:36:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:05,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 15:36:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:05,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-11-25 15:36:05,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:05,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-25 15:36:05,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:05,219 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-25 15:36:05,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:05,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340200251] [2022-11-25 15:36:05,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340200251] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:05,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:36:05,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 15:36:05,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200082561] [2022-11-25 15:36:05,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:05,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:36:05,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:05,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:36:05,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:36:05,222 INFO L87 Difference]: Start difference. First operand 2370 states and 3545 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:36:07,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:07,436 INFO L93 Difference]: Finished difference Result 4998 states and 7343 transitions. [2022-11-25 15:36:07,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:36:07,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2022-11-25 15:36:07,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:07,463 INFO L225 Difference]: With dead ends: 4998 [2022-11-25 15:36:07,463 INFO L226 Difference]: Without dead ends: 2642 [2022-11-25 15:36:07,484 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:36:07,491 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 991 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 1901 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 420 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:07,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1033 Valid, 1901 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [420 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-25 15:36:07,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2642 states. [2022-11-25 15:36:07,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2642 to 2411. [2022-11-25 15:36:07,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2411 states, 1782 states have (on average 1.361391694725028) internal successors, (2426), 1849 states have internal predecessors, (2426), 454 states have call successors, (454), 163 states have call predecessors, (454), 174 states have return successors, (561), 442 states have call predecessors, (561), 453 states have call successors, (561) [2022-11-25 15:36:07,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2411 states to 2411 states and 3441 transitions. [2022-11-25 15:36:07,718 INFO L78 Accepts]: Start accepts. Automaton has 2411 states and 3441 transitions. Word has length 119 [2022-11-25 15:36:07,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:07,718 INFO L495 AbstractCegarLoop]: Abstraction has 2411 states and 3441 transitions. [2022-11-25 15:36:07,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:36:07,719 INFO L276 IsEmpty]: Start isEmpty. Operand 2411 states and 3441 transitions. [2022-11-25 15:36:07,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-25 15:36:07,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:07,727 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:07,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 15:36:07,728 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:36:07,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:07,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1893256586, now seen corresponding path program 2 times [2022-11-25 15:36:07,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:07,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462204777] [2022-11-25 15:36:07,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:07,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:07,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:07,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:36:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:07,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:36:07,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:07,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:36:07,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:07,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 15:36:07,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:07,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 15:36:07,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:07,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-25 15:36:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:07,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-25 15:36:07,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:07,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 15:36:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:07,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 15:36:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:08,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-25 15:36:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:08,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:36:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:08,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:08,055 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-25 15:36:08,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:08,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462204777] [2022-11-25 15:36:08,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462204777] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:08,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:36:08,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 15:36:08,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708765513] [2022-11-25 15:36:08,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:08,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:36:08,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:08,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:36:08,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:36:08,059 INFO L87 Difference]: Start difference. First operand 2411 states and 3441 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-25 15:36:11,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:11,497 INFO L93 Difference]: Finished difference Result 5630 states and 8219 transitions. [2022-11-25 15:36:11,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:36:11,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 119 [2022-11-25 15:36:11,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:11,541 INFO L225 Difference]: With dead ends: 5630 [2022-11-25 15:36:11,541 INFO L226 Difference]: Without dead ends: 3820 [2022-11-25 15:36:11,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:36:11,557 INFO L413 NwaCegarLoop]: 1078 mSDtfsCounter, 997 mSDsluCounter, 1798 mSDsCounter, 0 mSdLazyCounter, 1334 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 2876 SdHoareTripleChecker+Invalid, 1603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 1334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:11,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1050 Valid, 2876 Invalid, 1603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 1334 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-25 15:36:11,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3820 states. [2022-11-25 15:36:11,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3820 to 3462. [2022-11-25 15:36:11,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3462 states, 2581 states have (on average 1.3684618364974817) internal successors, (3532), 2681 states have internal predecessors, (3532), 640 states have call successors, (640), 223 states have call predecessors, (640), 240 states have return successors, (793), 617 states have call predecessors, (793), 639 states have call successors, (793) [2022-11-25 15:36:11,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3462 states to 3462 states and 4965 transitions. [2022-11-25 15:36:11,856 INFO L78 Accepts]: Start accepts. Automaton has 3462 states and 4965 transitions. Word has length 119 [2022-11-25 15:36:11,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:11,857 INFO L495 AbstractCegarLoop]: Abstraction has 3462 states and 4965 transitions. [2022-11-25 15:36:11,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-25 15:36:11,857 INFO L276 IsEmpty]: Start isEmpty. Operand 3462 states and 4965 transitions. [2022-11-25 15:36:11,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-25 15:36:11,867 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:11,867 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:11,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 15:36:11,868 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:36:11,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:11,869 INFO L85 PathProgramCache]: Analyzing trace with hash 528219514, now seen corresponding path program 1 times [2022-11-25 15:36:11,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:11,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933049511] [2022-11-25 15:36:11,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:11,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:11,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:12,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:36:12,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:12,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:36:12,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:12,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:36:12,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:12,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 15:36:12,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:12,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 15:36:12,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:12,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-25 15:36:12,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:12,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-25 15:36:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:12,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 15:36:12,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:12,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 15:36:12,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:12,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-25 15:36:12,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:12,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:36:12,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:12,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:12,167 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-25 15:36:12,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:12,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933049511] [2022-11-25 15:36:12,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933049511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:12,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:36:12,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 15:36:12,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763545520] [2022-11-25 15:36:12,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:12,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:36:12,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:12,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:36:12,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 15:36:12,172 INFO L87 Difference]: Start difference. First operand 3462 states and 4965 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:36:14,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:14,981 INFO L93 Difference]: Finished difference Result 7855 states and 11473 transitions. [2022-11-25 15:36:14,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:36:14,982 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 136 [2022-11-25 15:36:14,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:15,028 INFO L225 Difference]: With dead ends: 7855 [2022-11-25 15:36:15,029 INFO L226 Difference]: Without dead ends: 4994 [2022-11-25 15:36:15,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-25 15:36:15,053 INFO L413 NwaCegarLoop]: 1239 mSDtfsCounter, 1144 mSDsluCounter, 1321 mSDsCounter, 0 mSdLazyCounter, 1041 mSolverCounterSat, 423 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1199 SdHoareTripleChecker+Valid, 2560 SdHoareTripleChecker+Invalid, 1464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 423 IncrementalHoareTripleChecker+Valid, 1041 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:15,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1199 Valid, 2560 Invalid, 1464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [423 Valid, 1041 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-25 15:36:15,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4994 states. [2022-11-25 15:36:15,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4994 to 4517. [2022-11-25 15:36:15,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4517 states, 3382 states have (on average 1.3719692489651094) internal successors, (4640), 3515 states have internal predecessors, (4640), 826 states have call successors, (826), 285 states have call predecessors, (826), 308 states have return successors, (1025), 792 states have call predecessors, (1025), 825 states have call successors, (1025) [2022-11-25 15:36:15,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4517 states to 4517 states and 6491 transitions. [2022-11-25 15:36:15,500 INFO L78 Accepts]: Start accepts. Automaton has 4517 states and 6491 transitions. Word has length 136 [2022-11-25 15:36:15,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:15,502 INFO L495 AbstractCegarLoop]: Abstraction has 4517 states and 6491 transitions. [2022-11-25 15:36:15,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-25 15:36:15,503 INFO L276 IsEmpty]: Start isEmpty. Operand 4517 states and 6491 transitions. [2022-11-25 15:36:15,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-25 15:36:15,515 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:15,516 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:15,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 15:36:15,516 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:36:15,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:15,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1586883258, now seen corresponding path program 1 times [2022-11-25 15:36:15,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:15,517 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351205991] [2022-11-25 15:36:15,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:15,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:15,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:36:15,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:15,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:36:15,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:15,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:36:15,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:15,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 15:36:15,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:15,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 15:36:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:15,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-25 15:36:15,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:15,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:15,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:15,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-25 15:36:15,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:15,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-25 15:36:15,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:15,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:36:15,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:15,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-25 15:36:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:15,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:36:16,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:16,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:16,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:16,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 15:36:16,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:16,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-25 15:36:16,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:16,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-25 15:36:16,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:16,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-25 15:36:16,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:16,288 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-11-25 15:36:16,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:16,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351205991] [2022-11-25 15:36:16,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351205991] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:36:16,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511830482] [2022-11-25 15:36:16,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:16,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:36:16,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296aa145-8eb7-497a-92db-178ef1a529c9/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:36:16,293 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296aa145-8eb7-497a-92db-178ef1a529c9/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:36:16,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296aa145-8eb7-497a-92db-178ef1a529c9/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 15:36:16,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:16,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 15:36:16,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:36:16,795 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-11-25 15:36:16,795 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:36:16,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511830482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:16,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:36:16,796 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-11-25 15:36:16,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428438960] [2022-11-25 15:36:16,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:16,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 15:36:16,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:16,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 15:36:16,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:36:16,798 INFO L87 Difference]: Start difference. First operand 4517 states and 6491 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 15:36:17,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:17,164 INFO L93 Difference]: Finished difference Result 9714 states and 14031 transitions. [2022-11-25 15:36:17,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 15:36:17,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2022-11-25 15:36:17,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:17,204 INFO L225 Difference]: With dead ends: 9714 [2022-11-25 15:36:17,204 INFO L226 Difference]: Without dead ends: 5211 [2022-11-25 15:36:17,236 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-25 15:36:17,237 INFO L413 NwaCegarLoop]: 1036 mSDtfsCounter, 167 mSDsluCounter, 832 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 1868 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:17,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 1868 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:36:17,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5211 states. [2022-11-25 15:36:17,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5211 to 4577. [2022-11-25 15:36:17,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4577 states, 3442 states have (on average 1.3654851830331203) internal successors, (4700), 3575 states have internal predecessors, (4700), 826 states have call successors, (826), 285 states have call predecessors, (826), 308 states have return successors, (1025), 792 states have call predecessors, (1025), 825 states have call successors, (1025) [2022-11-25 15:36:17,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4577 states to 4577 states and 6551 transitions. [2022-11-25 15:36:17,691 INFO L78 Accepts]: Start accepts. Automaton has 4577 states and 6551 transitions. Word has length 147 [2022-11-25 15:36:17,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:17,692 INFO L495 AbstractCegarLoop]: Abstraction has 4577 states and 6551 transitions. [2022-11-25 15:36:17,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 15:36:17,693 INFO L276 IsEmpty]: Start isEmpty. Operand 4577 states and 6551 transitions. [2022-11-25 15:36:17,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-25 15:36:17,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:17,703 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:17,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296aa145-8eb7-497a-92db-178ef1a529c9/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 15:36:17,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296aa145-8eb7-497a-92db-178ef1a529c9/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:36:17,911 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:36:17,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:17,911 INFO L85 PathProgramCache]: Analyzing trace with hash 2106356288, now seen corresponding path program 1 times [2022-11-25 15:36:17,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:17,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703833661] [2022-11-25 15:36:17,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:17,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:17,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:18,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:36:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:18,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:36:18,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:18,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:36:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:18,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 15:36:18,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:18,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 15:36:18,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:18,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-25 15:36:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:18,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:18,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:18,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-25 15:36:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:18,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-25 15:36:18,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:18,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-25 15:36:18,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:18,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-25 15:36:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:18,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:36:18,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:18,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:18,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-25 15:36:18,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:18,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-25 15:36:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:18,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-11-25 15:36:18,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:18,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-25 15:36:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:18,577 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2022-11-25 15:36:18,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:18,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703833661] [2022-11-25 15:36:18,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703833661] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 15:36:18,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451332758] [2022-11-25 15:36:18,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:18,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:36:18,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296aa145-8eb7-497a-92db-178ef1a529c9/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:36:18,583 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296aa145-8eb7-497a-92db-178ef1a529c9/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 15:36:18,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296aa145-8eb7-497a-92db-178ef1a529c9/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 15:36:19,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:19,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 1258 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-25 15:36:19,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:36:19,134 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-11-25 15:36:19,134 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:36:19,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451332758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:19,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 15:36:19,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2022-11-25 15:36:19,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544382594] [2022-11-25 15:36:19,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:19,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 15:36:19,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:19,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 15:36:19,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:36:19,137 INFO L87 Difference]: Start difference. First operand 4577 states and 6551 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 15:36:19,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:19,454 INFO L93 Difference]: Finished difference Result 9150 states and 13556 transitions. [2022-11-25 15:36:19,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 15:36:19,455 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2022-11-25 15:36:19,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:19,495 INFO L225 Difference]: With dead ends: 9150 [2022-11-25 15:36:19,495 INFO L226 Difference]: Without dead ends: 4587 [2022-11-25 15:36:19,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 180 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-25 15:36:19,532 INFO L413 NwaCegarLoop]: 833 mSDtfsCounter, 2 mSDsluCounter, 2486 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3319 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:19,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3319 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:36:19,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4587 states. [2022-11-25 15:36:19,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4587 to 4577. [2022-11-25 15:36:19,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4577 states, 3432 states have (on average 1.3607226107226107) internal successors, (4670), 3570 states have internal predecessors, (4670), 826 states have call successors, (826), 285 states have call predecessors, (826), 318 states have return successors, (1052), 797 states have call predecessors, (1052), 825 states have call successors, (1052) [2022-11-25 15:36:19,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4577 states to 4577 states and 6548 transitions. [2022-11-25 15:36:20,001 INFO L78 Accepts]: Start accepts. Automaton has 4577 states and 6548 transitions. Word has length 147 [2022-11-25 15:36:20,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:20,002 INFO L495 AbstractCegarLoop]: Abstraction has 4577 states and 6548 transitions. [2022-11-25 15:36:20,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-25 15:36:20,002 INFO L276 IsEmpty]: Start isEmpty. Operand 4577 states and 6548 transitions. [2022-11-25 15:36:20,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-25 15:36:20,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:20,015 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:20,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296aa145-8eb7-497a-92db-178ef1a529c9/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 15:36:20,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296aa145-8eb7-497a-92db-178ef1a529c9/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 15:36:20,224 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:36:20,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:20,225 INFO L85 PathProgramCache]: Analyzing trace with hash 852351328, now seen corresponding path program 1 times [2022-11-25 15:36:20,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:20,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6474765] [2022-11-25 15:36:20,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:20,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:20,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:21,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:36:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:21,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 15:36:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:21,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 15:36:21,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:21,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-25 15:36:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:21,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-25 15:36:21,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:21,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-25 15:36:21,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:21,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-11-25 15:36:21,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:21,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-11-25 15:36:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:21,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-25 15:36:21,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:21,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-11-25 15:36:21,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:21,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:21,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-25 15:36:21,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:21,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-25 15:36:21,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:21,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-11-25 15:36:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:21,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-25 15:36:21,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:21,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:36:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:22,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-25 15:36:22,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:22,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 15:36:22,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:22,504 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2022-11-25 15:36:22,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:22,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6474765] [2022-11-25 15:36:22,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6474765] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:22,505 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:36:22,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-11-25 15:36:22,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580610863] [2022-11-25 15:36:22,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:22,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 15:36:22,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:22,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 15:36:22,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2022-11-25 15:36:22,507 INFO L87 Difference]: Start difference. First operand 4577 states and 6548 transitions. Second operand has 16 states, 15 states have (on average 6.333333333333333) internal successors, (95), 11 states have internal predecessors, (95), 3 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (18), 5 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 15:36:28,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:28,049 INFO L93 Difference]: Finished difference Result 9629 states and 14338 transitions. [2022-11-25 15:36:28,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 15:36:28,050 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.333333333333333) internal successors, (95), 11 states have internal predecessors, (95), 3 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (18), 5 states have call predecessors, (18), 2 states have call successors, (18) Word has length 154 [2022-11-25 15:36:28,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:28,095 INFO L225 Difference]: With dead ends: 9629 [2022-11-25 15:36:28,095 INFO L226 Difference]: Without dead ends: 5066 [2022-11-25 15:36:28,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2022-11-25 15:36:28,135 INFO L413 NwaCegarLoop]: 723 mSDtfsCounter, 213 mSDsluCounter, 8116 mSDsCounter, 0 mSdLazyCounter, 3197 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 8839 SdHoareTripleChecker+Invalid, 3339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 3197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:28,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 8839 Invalid, 3339 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [142 Valid, 3197 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-25 15:36:28,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5066 states. [2022-11-25 15:36:28,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5066 to 4607. [2022-11-25 15:36:28,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4607 states, 3462 states have (on average 1.3547082611207395) internal successors, (4690), 3590 states have internal predecessors, (4690), 826 states have call successors, (826), 285 states have call predecessors, (826), 318 states have return successors, (1047), 807 states have call predecessors, (1047), 825 states have call successors, (1047) [2022-11-25 15:36:28,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4607 states to 4607 states and 6563 transitions. [2022-11-25 15:36:28,573 INFO L78 Accepts]: Start accepts. Automaton has 4607 states and 6563 transitions. Word has length 154 [2022-11-25 15:36:28,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:28,574 INFO L495 AbstractCegarLoop]: Abstraction has 4607 states and 6563 transitions. [2022-11-25 15:36:28,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.333333333333333) internal successors, (95), 11 states have internal predecessors, (95), 3 states have call successors, (19), 4 states have call predecessors, (19), 5 states have return successors, (18), 5 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-25 15:36:28,575 INFO L276 IsEmpty]: Start isEmpty. Operand 4607 states and 6563 transitions. [2022-11-25 15:36:28,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-25 15:36:28,590 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:28,591 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:28,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 15:36:28,591 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 15:36:28,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:28,595 INFO L85 PathProgramCache]: Analyzing trace with hash -145558883, now seen corresponding path program 1 times [2022-11-25 15:36:28,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:28,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936961506] [2022-11-25 15:36:28,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:28,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:28,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:36:28,769 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:36:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:36:29,023 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:36:29,023 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 15:36:29,025 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 15:36:29,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 15:36:29,034 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:29,038 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 15:36:29,104 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-25 15:36:29,105 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-25 15:36:29,105 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-25 15:36:29,105 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-25 15:36:29,106 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-25 15:36:29,106 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-25 15:36:29,106 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-25 15:36:29,107 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-25 15:36:29,107 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-25 15:36:29,107 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-25 15:36:29,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:36:29 BoogieIcfgContainer [2022-11-25 15:36:29,250 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:36:29,251 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:36:29,251 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:36:29,251 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:36:29,251 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:35:54" (3/4) ... [2022-11-25 15:36:29,253 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 15:36:29,281 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-25 15:36:29,282 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-25 15:36:29,282 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-25 15:36:29,282 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-25 15:36:29,283 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-25 15:36:29,283 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-25 15:36:29,283 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-25 15:36:29,283 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-25 15:36:29,284 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-25 15:36:29,284 WARN L421 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled [2022-11-25 15:36:29,491 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296aa145-8eb7-497a-92db-178ef1a529c9/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 15:36:29,492 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:36:29,492 INFO L158 Benchmark]: Toolchain (without parser) took 39590.56ms. Allocated memory was 138.4MB in the beginning and 587.2MB in the end (delta: 448.8MB). Free memory was 87.0MB in the beginning and 214.0MB in the end (delta: -127.0MB). Peak memory consumption was 324.2MB. Max. memory is 16.1GB. [2022-11-25 15:36:29,493 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 138.4MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:36:29,493 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1843.84ms. Allocated memory was 138.4MB in the beginning and 188.7MB in the end (delta: 50.3MB). Free memory was 86.6MB in the beginning and 129.3MB in the end (delta: -42.7MB). Peak memory consumption was 70.4MB. Max. memory is 16.1GB. [2022-11-25 15:36:29,494 INFO L158 Benchmark]: Boogie Procedure Inliner took 172.28ms. Allocated memory is still 188.7MB. Free memory was 129.3MB in the beginning and 118.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 15:36:29,494 INFO L158 Benchmark]: Boogie Preprocessor took 116.55ms. Allocated memory is still 188.7MB. Free memory was 118.8MB in the beginning and 108.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 15:36:29,495 INFO L158 Benchmark]: RCFGBuilder took 2436.73ms. Allocated memory was 188.7MB in the beginning and 245.4MB in the end (delta: 56.6MB). Free memory was 108.3MB in the beginning and 151.6MB in the end (delta: -43.3MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. [2022-11-25 15:36:29,496 INFO L158 Benchmark]: TraceAbstraction took 34769.86ms. Allocated memory was 245.4MB in the beginning and 587.2MB in the end (delta: 341.8MB). Free memory was 150.6MB in the beginning and 254.0MB in the end (delta: -103.4MB). Peak memory consumption was 238.4MB. Max. memory is 16.1GB. [2022-11-25 15:36:29,496 INFO L158 Benchmark]: Witness Printer took 241.20ms. Allocated memory is still 587.2MB. Free memory was 254.0MB in the beginning and 214.0MB in the end (delta: 40.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-25 15:36:29,500 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 138.4MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1843.84ms. Allocated memory was 138.4MB in the beginning and 188.7MB in the end (delta: 50.3MB). Free memory was 86.6MB in the beginning and 129.3MB in the end (delta: -42.7MB). Peak memory consumption was 70.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 172.28ms. Allocated memory is still 188.7MB. Free memory was 129.3MB in the beginning and 118.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 116.55ms. Allocated memory is still 188.7MB. Free memory was 118.8MB in the beginning and 108.3MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 2436.73ms. Allocated memory was 188.7MB in the beginning and 245.4MB in the end (delta: 56.6MB). Free memory was 108.3MB in the beginning and 151.6MB in the end (delta: -43.3MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. * TraceAbstraction took 34769.86ms. Allocated memory was 245.4MB in the beginning and 587.2MB in the end (delta: 341.8MB). Free memory was 150.6MB in the beginning and 254.0MB in the end (delta: -103.4MB). Peak memory consumption was 238.4MB. Max. memory is 16.1GB. * Witness Printer took 241.20ms. Allocated memory is still 587.2MB. Free memory was 254.0MB in the beginning and 214.0MB in the end (delta: 40.0MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.meminit_#ptr#1 : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 5283]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L5306] int LDV_IN_INTERRUPT = 1; [L5307] struct net_device *proto_group1 ; [L5308] int ldv_state_variable_0 ; [L5309] int ldv_state_variable_3 ; [L5310] int ldv_timer_state_1 = 0; [L5311] int ldv_state_variable_2 ; [L5312] struct sk_buff *proto_group0 ; [L5313] int ref_cnt ; [L5314] int ldv_state_variable_1 ; [L5315] struct timer_list *ldv_timer_list_1 ; [L5374] static struct sk_buff_head tx_queue ; [L5543-L5569] static int cp_table[13U][7U] = { { 163, 16, 16, 16, 16, 16, 16}, { 16, 0, 0, 0, 0, 0, 0}, { 16, 16, 1026, 131, 131, 133, 16}, { 16, 16, 1, 1, 1, 1, 16}, { 2048, 421, 2, 261, 262, 261, 389}, { 2048, 675, 2, 515, 516, 515, 643}, { 2048, 2049, 2, 36, 131, 6, 131}, { 2048, 2049, 2, 163, 131, 165, 131}, { 2048, 2049, 2050, 2051, 2051, 2051, 2114}, { 0, 1, 1, 3, 3, 5, 131}, { 4096, 4097, 4098, 4099, 4100, 4101, 4102}, { 0, 1, 2, 3, 3, 5, 6}, { 0, 1, 1, 1, 1, 1, 1058}}; [L6005-L6007] static struct hdlc_proto proto = {0, & ppp_close, & ppp_start, & ppp_stop, 0, & ppp_ioctl, & ppp_type_trans, & ppp_rx, 0, & __this_module, 0}; [L6008] static struct header_ops const ppp_header_ops = {& ppp_hard_header, 0, 0, 0, 0}; [L6088] int ldv_retval_0 ; [L6508] Element set_impl[15] ; [L6509] int last_index = 0; [L6643] Set LDV_SKBS ; VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L6156] struct ifreq *ldvarg0 ; [L6157] void *tmp ; [L6158] unsigned int ldvarg1 ; [L6159] unsigned int tmp___0 ; [L6160] unsigned short ldvarg4 ; [L6161] unsigned short tmp___1 ; [L6162] struct sk_buff *ldvarg3 ; [L6163] void *tmp___2 ; [L6164] struct net_device *ldvarg5 ; [L6165] void *tmp___3 ; [L6166] void *ldvarg2 ; [L6167] void *tmp___4 ; [L6168] void *ldvarg6 ; [L6169] void *tmp___5 ; [L6170] int tmp___6 ; [L6171] int tmp___7 ; [L6172] int tmp___8 ; [L6173] int tmp___9 ; VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L6175] CALL, EXPR ldv_zalloc(40UL) VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5248] void *p ; [L5249] void *tmp ; [L5250] int tmp___0 ; [L5252] tmp___0 = __VERIFIER_nondet_int() [L5253] COND TRUE tmp___0 != 0 [L5254] return ((void *)0); VAL [\old(size)=40, \result={0:0}, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, size=40, tmp___0=1, tx_queue={12:0}] [L6175] RET, EXPR ldv_zalloc(40UL) VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(40UL)={0:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L6175] tmp = ldv_zalloc(40UL) [L6176] ldvarg0 = (struct ifreq *)tmp [L6177] tmp___0 = __VERIFIER_nondet_uint() [L6178] ldvarg1 = tmp___0 [L6179] tmp___1 = __VERIFIER_nondet_ushort() [L6180] ldvarg4 = tmp___1 VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=5, ldvarg4=10, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={0:0}, tmp___0=5, tmp___1=10, tx_queue={12:0}] [L6181] CALL, EXPR ldv_zalloc(232UL) VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5248] void *p ; [L5249] void *tmp ; [L5250] int tmp___0 ; [L5252] tmp___0 = __VERIFIER_nondet_int() [L5253] COND TRUE tmp___0 != 0 [L5254] return ((void *)0); VAL [\old(size)=232, \result={0:0}, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, size=232, tmp___0=1, tx_queue={12:0}] [L6181] RET, EXPR ldv_zalloc(232UL) VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(232UL)={0:0}, ldvarg0={0:0}, ldvarg1=5, ldvarg4=10, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={0:0}, tmp___0=5, tmp___1=10, tx_queue={12:0}] [L6181] tmp___2 = ldv_zalloc(232UL) [L6182] ldvarg3 = (struct sk_buff *)tmp___2 VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=5, ldvarg3={0:0}, ldvarg4=10, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={0:0}, tmp___0=5, tmp___1=10, tmp___2={0:0}, tx_queue={12:0}] [L6183] CALL, EXPR ldv_zalloc(3264UL) VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5248] void *p ; [L5249] void *tmp ; [L5250] int tmp___0 ; [L5252] tmp___0 = __VERIFIER_nondet_int() [L5253] COND TRUE tmp___0 != 0 [L5254] return ((void *)0); VAL [\old(size)=3264, \result={0:0}, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, size=3264, tmp___0=1, tx_queue={12:0}] [L6183] RET, EXPR ldv_zalloc(3264UL) VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(3264UL)={0:0}, ldvarg0={0:0}, ldvarg1=5, ldvarg3={0:0}, ldvarg4=10, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={0:0}, tmp___0=5, tmp___1=10, tmp___2={0:0}, tx_queue={12:0}] [L6183] tmp___3 = ldv_zalloc(3264UL) [L6184] ldvarg5 = (struct net_device *)tmp___3 VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=5, ldvarg3={0:0}, ldvarg4=10, ldvarg5={0:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={0:0}, tmp___0=5, tmp___1=10, tmp___2={0:0}, tmp___3={0:0}, tx_queue={12:0}] [L6185] CALL, EXPR ldv_zalloc(1UL) VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5248] void *p ; [L5249] void *tmp ; [L5250] int tmp___0 ; [L5252] tmp___0 = __VERIFIER_nondet_int() [L5253] COND TRUE tmp___0 != 0 [L5254] return ((void *)0); VAL [\old(size)=1, \result={0:0}, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, size=1, tmp___0=1, tx_queue={12:0}] [L6185] RET, EXPR ldv_zalloc(1UL) VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(1UL)={0:0}, ldvarg0={0:0}, ldvarg1=5, ldvarg3={0:0}, ldvarg4=10, ldvarg5={0:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={0:0}, tmp___0=5, tmp___1=10, tmp___2={0:0}, tmp___3={0:0}, tx_queue={12:0}] [L6185] tmp___4 = ldv_zalloc(1UL) [L6186] ldvarg2 = tmp___4 VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=5, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=10, ldvarg5={0:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={0:0}, tmp___0=5, tmp___1=10, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tx_queue={12:0}] [L6187] CALL, EXPR ldv_zalloc(1UL) VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5248] void *p ; [L5249] void *tmp ; [L5250] int tmp___0 ; [L5252] tmp___0 = __VERIFIER_nondet_int() [L5253] COND TRUE tmp___0 != 0 [L5254] return ((void *)0); VAL [\old(size)=1, \result={0:0}, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, size=1, tmp___0=1, tx_queue={12:0}] [L6187] RET, EXPR ldv_zalloc(1UL) VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(1UL)={0:0}, ldvarg0={0:0}, ldvarg1=5, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=10, ldvarg5={0:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={0:0}, tmp___0=5, tmp___1=10, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tx_queue={12:0}] [L6187] tmp___5 = ldv_zalloc(1UL) [L6188] ldvarg6 = tmp___5 [L6189] CALL ldv_initialize() [L6662] CALL ldv_set_init(LDV_SKBS) [L6514] set = set_impl [L6515] last_index = 0 VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set={16:0}, set={0:0}, set_impl={16:0}, tx_queue={12:0}] [L6662] RET ldv_set_init(LDV_SKBS) [L6189] RET ldv_initialize() [L6190] ldv_state_variable_1 = 1 [L6191] ref_cnt = 0 [L6192] ldv_state_variable_0 = 1 [L6193] ldv_state_variable_3 = 0 [L6194] ldv_state_variable_2 = 0 VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=5, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=10, ldvarg5={0:0}, ldvarg6={0:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={0:0}, tmp___0=5, tmp___1=10, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tmp___5={0:0}, tx_queue={12:0}] [L6196] tmp___6 = __VERIFIER_nondet_int() [L6198] case 0: [L6204] case 1: VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=5, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=10, ldvarg5={0:0}, ldvarg6={0:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={0:0}, tmp___0=5, tmp___1=10, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tmp___5={0:0}, tmp___6=1, tx_queue={12:0}] [L6205] COND TRUE ldv_state_variable_0 != 0 [L6206] tmp___7 = __VERIFIER_nondet_int() [L6208] case 0: [L6216] case 1: VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=5, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=10, ldvarg5={0:0}, ldvarg6={0:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={0:0}, tmp___0=5, tmp___1=10, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tmp___5={0:0}, tmp___6=1, tmp___7=1, tx_queue={12:0}] [L6217] COND TRUE ldv_state_variable_0 == 1 [L6218] CALL, EXPR mod_init() [L6076] CALL skb_queue_head_init(& tx_queue) [L5188] struct lock_class_key __key ; VAL [__key={17:0}, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, list={12:0}, list={12:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5190] CALL spinlock_check(& list->lock) VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, lock={12:20}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5137] return (& lock->ldv_6338.rlock); VAL [\result={12:20}, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, lock={12:20}, lock={12:20}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5190] RET spinlock_check(& list->lock) VAL [__key={17:0}, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, list={12:0}, list={12:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, spinlock_check(& list->lock)={12:20}, tx_queue={12:0}] [L5191] FCALL __raw_spin_lock_init(& list->lock.ldv_6338.rlock, "&(&list->lock)->rlock", & __key) VAL [__key={17:0}, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, list={12:0}, list={12:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5192] CALL __skb_queue_head_init(list) [L5177] struct sk_buff *tmp ; [L5179] tmp = (struct sk_buff *)list [L5180] list->next = tmp [L5181] list->prev = tmp [L5182] list->qlen = 0U VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, list={12:0}, list={12:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={12:0}, tx_queue={12:0}] [L5192] RET __skb_queue_head_init(list) [L5193] return; VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, list={12:0}, list={12:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L6076] RET skb_queue_head_init(& tx_queue) [L6077] FCALL register_hdlc_protocol(& proto) [L6078] return (0); VAL [\result=0, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=1, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L6218] RET, EXPR mod_init() [L6218] ldv_retval_0 = mod_init() [L6219] COND TRUE ldv_retval_0 == 0 [L6220] ldv_state_variable_0 = 3 [L6221] ldv_state_variable_2 = 1 [L6222] ldv_state_variable_3 = 1 [L6223] CALL ldv_initialize_hdlc_proto_3() [L6115] void *tmp ; [L6116] void *tmp___0 ; VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L6118] CALL, EXPR ldv_zalloc(3264UL) VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5248] void *p ; [L5249] void *tmp ; [L5250] int tmp___0 ; [L5252] tmp___0 = __VERIFIER_nondet_int() [L5253] COND TRUE tmp___0 != 0 [L5254] return ((void *)0); VAL [\old(size)=3264, \result={0:0}, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, size=3264, tmp___0=1, tx_queue={12:0}] [L6118] RET, EXPR ldv_zalloc(3264UL) VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(3264UL)={0:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L6118] tmp = ldv_zalloc(3264UL) [L6119] proto_group1 = (struct net_device *)tmp VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={0:0}, tx_queue={12:0}] [L6120] CALL, EXPR ldv_zalloc(232UL) VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5248] void *p ; [L5249] void *tmp ; [L5250] int tmp___0 ; [L5252] tmp___0 = __VERIFIER_nondet_int() [L5253] COND TRUE tmp___0 != 0 [L5254] return ((void *)0); VAL [\old(size)=232, \result={0:0}, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, size=232, tmp___0=1, tx_queue={12:0}] [L6120] RET, EXPR ldv_zalloc(232UL) VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(232UL)={0:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={0:0}, tx_queue={12:0}] [L6120] tmp___0 = ldv_zalloc(232UL) [L6121] proto_group0 = (struct sk_buff *)tmp___0 VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={0:0}, tmp___0={0:0}, tx_queue={12:0}] [L6223] RET ldv_initialize_hdlc_proto_3() [L6226] COND FALSE !(ldv_retval_0 != 0) VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=5, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=10, ldvarg5={0:0}, ldvarg6={0:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={0:0}, tmp___0=5, tmp___1=10, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tmp___5={0:0}, tmp___6=1, tmp___7=1, tx_queue={12:0}] [L6196] tmp___6 = __VERIFIER_nondet_int() [L6198] case 0: VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldvarg0={0:0}, ldvarg1=5, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=10, ldvarg5={0:0}, ldvarg6={0:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={0:0}, tmp___0=5, tmp___1=10, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tmp___5={0:0}, tmp___6=0, tmp___7=1, tx_queue={12:0}] [L6199] COND TRUE ldv_state_variable_1 != 0 [L6200] CALL choose_timer_1(ldv_timer_list_1) [L6128] LDV_IN_INTERRUPT = 2 [L6129] EXPR timer->data [L6129] EXPR timer->function [L6129] CALL (*(timer->function))(timer->data) [L5913] struct proto *proto___0 ; [L5914] struct ppp *ppp ; [L5915] struct ppp *tmp ; [L5916] unsigned long flags ; [L5917] raw_spinlock_t *tmp___0 ; [L5919] proto___0 = (struct proto *)arg [L5920] EXPR proto___0->dev VAL [\old(arg)=18446744073709551613, __this_module={18446744073709551625:18446744073709551615}, arg=18446744073709551613, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto___0={0:-3}, proto___0->dev={18446744073709551619:-3264}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5920] CALL, EXPR get_ppp(proto___0->dev) VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, dev={18446744073709551619:-3264}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5378] struct hdlc_device *tmp ; VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, dev={18446744073709551619:-3264}, dev={18446744073709551619:-3264}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5380] CALL, EXPR dev_to_hdlc(dev) VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, dev={18446744073709551619:-3264}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5367] void *tmp ; [L5369] CALL, EXPR netdev_priv((struct net_device const *)dev) [L5324] return ((void *)dev + 3264U); VAL [\result={18446744073709551619:0}, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, dev={18446744073709551619:-3264}, dev={18446744073709551619:-3264}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5369] RET, EXPR netdev_priv((struct net_device const *)dev) [L5369] tmp = netdev_priv((struct net_device const *)dev) [L5370] return ((struct hdlc_device *)tmp); VAL [\result={18446744073709551619:0}, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, dev={18446744073709551619:-3264}, dev={18446744073709551619:-3264}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={18446744073709551619:0}, tx_queue={12:0}] [L5380] RET, EXPR dev_to_hdlc(dev) VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, dev={18446744073709551619:-3264}, dev={18446744073709551619:-3264}, dev_to_hdlc(dev)={18446744073709551619:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5380] tmp = dev_to_hdlc(dev) [L5381] EXPR tmp->state [L5381] return ((struct ppp *)tmp->state); [L5920] RET, EXPR get_ppp(proto___0->dev) VAL [\old(arg)=18446744073709551613, __this_module={18446744073709551625:18446744073709551615}, arg=18446744073709551613, cp_table={13:0}, get_ppp(proto___0->dev)={18446744073709551627:-435}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto___0={0:-3}, proto___0->dev={18446744073709551619:-3264}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5920] tmp = get_ppp(proto___0->dev) [L5921] ppp = tmp VAL [\old(arg)=18446744073709551613, __this_module={18446744073709551625:18446744073709551615}, arg=18446744073709551613, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp={18446744073709551627:-435}, ppp_header_ops={15:0}, proto={14:0}, proto___0={0:-3}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={18446744073709551627:-435}, tx_queue={12:0}] [L5922] CALL, EXPR spinlock_check(& ppp->lock) VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, lock={18446744073709551627:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5137] return (& lock->ldv_6338.rlock); VAL [\result={18446744073709551627:0}, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, lock={18446744073709551627:0}, lock={18446744073709551627:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5922] RET, EXPR spinlock_check(& ppp->lock) VAL [\old(arg)=18446744073709551613, __this_module={18446744073709551625:18446744073709551615}, arg=18446744073709551613, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp={18446744073709551627:-435}, ppp_header_ops={15:0}, proto={14:0}, proto___0={0:-3}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, spinlock_check(& ppp->lock)={18446744073709551627:0}, tmp={18446744073709551627:-435}, tx_queue={12:0}] [L5922] tmp___0 = spinlock_check(& ppp->lock) [L5923] CALL, EXPR _raw_spin_lock_irqsave(tmp___0) VAL [__this_module={18446744073709551625:18446744073709551615}, arg0={18446744073709551627:0}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L6731] return __VERIFIER_nondet_ulong(); [L5923] RET, EXPR _raw_spin_lock_irqsave(tmp___0) VAL [\old(arg)=18446744073709551613, __this_module={18446744073709551625:18446744073709551615}, _raw_spin_lock_irqsave(tmp___0)=18446744073709551614, arg=18446744073709551613, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp={18446744073709551627:-435}, ppp_header_ops={15:0}, proto={14:0}, proto___0={0:-3}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={18446744073709551627:-435}, tmp___0={18446744073709551627:0}, tx_queue={12:0}] [L5923] flags = _raw_spin_lock_irqsave(tmp___0) [L5924] proto___0->state [L5925] case 2: VAL [\old(arg)=18446744073709551613, __this_module={18446744073709551625:18446744073709551615}, arg=18446744073709551613, cp_table={13:0}, flags=18446744073709551614, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp={18446744073709551627:-435}, ppp_header_ops={15:0}, proto={14:0}, proto___0={0:-3}, proto___0->state=-250, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={18446744073709551627:-435}, tmp___0={18446744073709551627:0}, tx_queue={12:0}] [L5926] case 3: VAL [\old(arg)=18446744073709551613, __this_module={18446744073709551625:18446744073709551615}, arg=18446744073709551613, cp_table={13:0}, flags=18446744073709551614, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp={18446744073709551627:-435}, ppp_header_ops={15:0}, proto={14:0}, proto___0={0:-3}, proto___0->state=-250, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={18446744073709551627:-435}, tmp___0={18446744073709551627:0}, tx_queue={12:0}] [L5927] case 4: VAL [\old(arg)=18446744073709551613, __this_module={18446744073709551625:18446744073709551615}, arg=18446744073709551613, cp_table={13:0}, flags=18446744073709551614, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp={18446744073709551627:-435}, ppp_header_ops={15:0}, proto={14:0}, proto___0={0:-3}, proto___0->state=-250, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={18446744073709551627:-435}, tmp___0={18446744073709551627:0}, tx_queue={12:0}] [L5928] case 5: [L5936] case 6: [L5937] EXPR proto___0->pid VAL [\old(arg)=18446744073709551613, __this_module={18446744073709551625:18446744073709551615}, arg=18446744073709551613, cp_table={13:0}, flags=18446744073709551614, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp={18446744073709551627:-435}, ppp_header_ops={15:0}, proto={14:0}, proto___0={0:-3}, proto___0->pid=18, proto___0->state=-250, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={18446744073709551627:-435}, tmp___0={18446744073709551627:0}, tx_queue={12:0}] [L5937] COND TRUE (unsigned int )proto___0->pid != 49185U [L5955] CALL spin_unlock_irqrestore(& ppp->lock, flags) VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5143] FCALL _raw_spin_unlock_irqrestore(& lock->ldv_6338.rlock, flags) [L5955] RET spin_unlock_irqrestore(& ppp->lock, flags) VAL [\old(arg)=18446744073709551613, __this_module={18446744073709551625:18446744073709551615}, arg=18446744073709551613, cp_table={13:0}, flags=18446744073709551614, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp={18446744073709551627:-435}, ppp_header_ops={15:0}, proto={14:0}, proto___0={0:-3}, proto___0->state=-250, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={18446744073709551627:-435}, tmp___0={18446744073709551627:0}, tx_queue={12:0}] [L5956] CALL ppp_tx_flush() VAL [\old(last_index)=0, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5475] struct sk_buff *skb ; VAL [\old(last_index)=0, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5481] CALL, EXPR ldv_skb_dequeue_12(& tx_queue) [L6460] struct sk_buff *tmp ; VAL [\old(last_index)=0, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, ldv_func_arg1={12:0}, ldv_func_arg1={12:0}, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L6462] CALL, EXPR ldv_skb_alloc() VAL [\old(last_index)=0, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L6646] void *skb ; [L6647] void *tmp___7 ; VAL [\old(last_index)=0, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L6649] CALL, EXPR ldv_zalloc(sizeof(struct sk_buff___0 )) VAL [\old(last_index)=0, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5248] void *p ; [L5249] void *tmp ; [L5250] int tmp___0 ; [L5252] tmp___0 = __VERIFIER_nondet_int() [L5253] COND FALSE !(tmp___0 != 0) [L5256] EXPR, FCALL calloc(1UL, size) [L5256] tmp = calloc(1UL, size) [L5257] p = tmp VAL [\old(last_index)=0, \old(size)=248, __this_module={18446744073709551625:18446744073709551615}, calloc(1UL, size)={-18446744073709551617:0}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, p={-18446744073709551617:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, size=248, tmp={-18446744073709551617:0}, tmp___0=0, tx_queue={12:0}] [L5258] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, \old(last_index)=0, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5227] COND FALSE !(!cond) VAL [\old(cond)=1, \old(last_index)=0, __this_module={18446744073709551625:18446744073709551615}, cond=1, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5258] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(last_index)=0, \old(size)=248, __this_module={18446744073709551625:18446744073709551615}, calloc(1UL, size)={-18446744073709551617:0}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, p={-18446744073709551617:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, size=248, tmp={-18446744073709551617:0}, tmp___0=0, tx_queue={12:0}] [L5259] return (p); VAL [\old(last_index)=0, \old(size)=248, \result={-18446744073709551617:0}, __this_module={18446744073709551625:18446744073709551615}, calloc(1UL, size)={-18446744073709551617:0}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, p={-18446744073709551617:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, size=248, tmp={-18446744073709551617:0}, tmp___0=0, tx_queue={12:0}] [L6649] RET, EXPR ldv_zalloc(sizeof(struct sk_buff___0 )) VAL [\old(last_index)=0, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(sizeof(struct sk_buff___0 ))={-18446744073709551617:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L6649] tmp___7 = ldv_zalloc(sizeof(struct sk_buff___0 )) [L6650] skb = (struct sk_buff___0 *)tmp___7 VAL [\old(last_index)=0, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, skb={-18446744073709551617:0}, tmp___7={-18446744073709551617:0}, tx_queue={12:0}] [L6651] COND FALSE !(! skb) [L6654] CALL ldv_set_add(LDV_SKBS, skb) [L6522] int i ; [L6524] i = 0 VAL [\old(last_index)=0, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, e={-18446744073709551617:0}, e={-18446744073709551617:0}, i=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set={0:0}, set={0:0}, set_impl={16:0}, tx_queue={12:0}] [L6525] COND TRUE 1 VAL [\old(last_index)=0, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, e={-18446744073709551617:0}, e={-18446744073709551617:0}, i=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set={0:0}, set={0:0}, set_impl={16:0}, tx_queue={12:0}] [L6526] COND FALSE !(i < last_index) VAL [\old(last_index)=0, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, e={-18446744073709551617:0}, e={-18446744073709551617:0}, i=0, last_index=0, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set={0:0}, set={0:0}, set_impl={16:0}, tx_queue={12:0}] [L6536] COND TRUE last_index < 15 [L6537] set_impl[last_index] = e [L6538] last_index = last_index + 1 VAL [\old(last_index)=0, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, e={-18446744073709551617:0}, e={-18446744073709551617:0}, i=0, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set={0:0}, set={0:0}, set_impl={16:0}, tx_queue={12:0}] [L6654] RET ldv_set_add(LDV_SKBS, skb) [L6655] return (skb); VAL [\old(last_index)=0, \result={-18446744073709551617:0}, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, skb={-18446744073709551617:0}, tmp___7={-18446744073709551617:0}, tx_queue={12:0}] [L6462] RET, EXPR ldv_skb_alloc() VAL [\old(last_index)=0, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=1, ldv_func_arg1={12:0}, ldv_func_arg1={12:0}, LDV_IN_INTERRUPT=2, ldv_retval_0=0, ldv_skb_alloc()={-18446744073709551617:0}, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L6462] tmp = ldv_skb_alloc() [L6463] return (tmp); VAL [\old(last_index)=0, \result={-18446744073709551617:0}, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=1, ldv_func_arg1={12:0}, ldv_func_arg1={12:0}, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={-18446744073709551617:0}, tx_queue={12:0}] [L5481] RET, EXPR ldv_skb_dequeue_12(& tx_queue) [L5481] skb = ldv_skb_dequeue_12(& tx_queue) [L5482] COND TRUE (unsigned long )skb != (unsigned long )((struct sk_buff *)0) VAL [\old(last_index)=0, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, skb={-18446744073709551617:0}, tx_queue={12:0}] [L5479] CALL dev_queue_xmit(skb) [L6753] return __VERIFIER_nondet_int(); [L5479] RET dev_queue_xmit(skb) [L5481] CALL, EXPR ldv_skb_dequeue_12(& tx_queue) [L6460] struct sk_buff *tmp ; VAL [\old(last_index)=0, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=1, ldv_func_arg1={12:0}, ldv_func_arg1={12:0}, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L6462] CALL, EXPR ldv_skb_alloc() VAL [\old(last_index)=1, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L6646] void *skb ; [L6647] void *tmp___7 ; VAL [\old(last_index)=1, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L6649] CALL, EXPR ldv_zalloc(sizeof(struct sk_buff___0 )) VAL [\old(last_index)=1, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5248] void *p ; [L5249] void *tmp ; [L5250] int tmp___0 ; [L5252] tmp___0 = __VERIFIER_nondet_int() [L5253] COND TRUE tmp___0 != 0 [L5254] return ((void *)0); VAL [\old(last_index)=1, \old(size)=248, \result={0:0}, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, size=248, tmp___0=1, tx_queue={12:0}] [L6649] RET, EXPR ldv_zalloc(sizeof(struct sk_buff___0 )) VAL [\old(last_index)=1, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ldv_zalloc(sizeof(struct sk_buff___0 ))={0:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L6649] tmp___7 = ldv_zalloc(sizeof(struct sk_buff___0 )) [L6650] skb = (struct sk_buff___0 *)tmp___7 VAL [\old(last_index)=1, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, skb={0:0}, tmp___7={0:0}, tx_queue={12:0}] [L6651] COND TRUE ! skb [L6652] return ((void *)0); VAL [\old(last_index)=1, \result={0:0}, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, skb={0:0}, tmp___7={0:0}, tx_queue={12:0}] [L6462] RET, EXPR ldv_skb_alloc() VAL [\old(last_index)=0, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=1, ldv_func_arg1={12:0}, ldv_func_arg1={12:0}, LDV_IN_INTERRUPT=2, ldv_retval_0=0, ldv_skb_alloc()={0:0}, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L6462] tmp = ldv_skb_alloc() [L6463] return (tmp); VAL [\old(last_index)=0, \result={0:0}, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=1, ldv_func_arg1={12:0}, ldv_func_arg1={12:0}, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={0:0}, tx_queue={12:0}] [L5481] RET, EXPR ldv_skb_dequeue_12(& tx_queue) [L5481] skb = ldv_skb_dequeue_12(& tx_queue) [L5482] COND FALSE !((unsigned long )skb != (unsigned long )((struct sk_buff *)0)) VAL [\old(last_index)=0, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, skb={0:0}, tx_queue={12:0}] [L5956] RET ppp_tx_flush() VAL [\old(arg)=18446744073709551613, __this_module={18446744073709551625:18446744073709551615}, arg=18446744073709551613, cp_table={13:0}, flags=18446744073709551614, last_index=1, LDV_IN_INTERRUPT=2, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=0, ppp={18446744073709551627:-435}, ppp_header_ops={15:0}, proto={14:0}, proto___0={0:-3}, proto___0->state=-250, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={18446744073709551627:-435}, tmp___0={18446744073709551627:0}, tx_queue={12:0}] [L6129] RET (*(timer->function))(timer->data) [L6130] LDV_IN_INTERRUPT = 1 [L6131] ldv_timer_state_1 = 2 VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=2, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, timer={0:0}, timer={0:0}, tx_queue={12:0}] [L6200] RET choose_timer_1(ldv_timer_list_1) [L6196] tmp___6 = __VERIFIER_nondet_int() [L6198] case 0: [L6204] case 1: VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=2, ldvarg0={0:0}, ldvarg1=5, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=10, ldvarg5={0:0}, ldvarg6={0:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={0:0}, tmp___0=5, tmp___1=10, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tmp___5={0:0}, tmp___6=1, tmp___7=1, tx_queue={12:0}] [L6205] COND TRUE ldv_state_variable_0 != 0 [L6206] tmp___7 = __VERIFIER_nondet_int() [L6208] case 0: VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=2, ldvarg0={0:0}, ldvarg1=5, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=10, ldvarg5={0:0}, ldvarg6={0:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={0:0}, tmp___0=5, tmp___1=10, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tmp___5={0:0}, tmp___6=1, tmp___7=0, tx_queue={12:0}] [L6209] COND TRUE ldv_state_variable_0 == 3 && ref_cnt == 0 [L6210] CALL mod_exit() [L6084] FCALL unregister_hdlc_protocol(& proto) [L6210] RET mod_exit() [L6211] ldv_state_variable_0 = 2 VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=2, ldvarg0={0:0}, ldvarg1=5, ldvarg2={0:0}, ldvarg3={0:0}, ldvarg4=10, ldvarg5={0:0}, ldvarg6={0:0}, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp={0:0}, tmp___0=5, tmp___1=10, tmp___2={0:0}, tmp___3={0:0}, tmp___4={0:0}, tmp___5={0:0}, tmp___6=1, tmp___7=0, tx_queue={12:0}] [L6419] CALL ldv_check_final_state() [L6713] int tmp___7 ; [L6715] CALL, EXPR ldv_set_is_empty(LDV_SKBS) [L6604] return (last_index == 0); VAL [\result=0, __this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=2, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set={0:0}, set={0:0}, set_impl={16:0}, tx_queue={12:0}] [L6715] RET, EXPR ldv_set_is_empty(LDV_SKBS) [L6715] tmp___7 = ldv_set_is_empty(LDV_SKBS) [L6716] COND FALSE !(\read(tmp___7)) VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=2, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tmp___7=0, tx_queue={12:0}] [L6718] CALL ldv_error() VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=2, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] [L5283] reach_error() VAL [__this_module={18446744073709551625:18446744073709551615}, cp_table={13:0}, last_index=1, LDV_IN_INTERRUPT=1, ldv_retval_0=0, LDV_SKBS={0:0}, ldv_state_variable_0=2, ldv_state_variable_1=1, ldv_state_variable_2=1, ldv_state_variable_3=1, ldv_timer_list_1={0:0}, ldv_timer_state_1=2, ppp_header_ops={15:0}, proto={14:0}, proto_group0={0:0}, proto_group1={0:0}, ref_cnt=0, set_impl={16:0}, tx_queue={12:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 34 procedures, 594 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 34.4s, OverallIterations: 10, TraceHistogramMax: 9, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 23.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7514 SdHoareTripleChecker+Valid, 19.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7136 mSDsluCounter, 29621 SdHoareTripleChecker+Invalid, 16.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21120 mSDsCounter, 2169 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8930 IncrementalHoareTripleChecker+Invalid, 11099 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2169 mSolverCounterUnsat, 8501 mSDtfsCounter, 8930 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 586 GetRequests, 523 SyntacticMatches, 3 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4607occurred in iteration=9, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.9s AutomataMinimizationTime, 9 MinimizatonAttempts, 2791 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 5.2s InterpolantComputationTime, 1479 NumberOfCodeBlocks, 1479 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 1297 ConstructedInterpolants, 0 QuantifiedInterpolants, 2626 SizeOfPredicates, 4 NumberOfNonLiveVariables, 2516 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 1167/1175 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 15:36:29,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_296aa145-8eb7-497a-92db-178ef1a529c9/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE