./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8 --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 01d4ebb86f2bde0df0d47bbd5d9b632b620f2501e68770553e85fb2bb5a7d15a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 21:06:03,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:06:03,635 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:06:03,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:06:03,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:06:03,655 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:06:03,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:06:03,658 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:06:03,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:06:03,660 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:06:03,662 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:06:03,663 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:06:03,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:06:03,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:06:03,665 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:06:03,666 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:06:03,667 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:06:03,668 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:06:03,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:06:03,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:06:03,673 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:06:03,674 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:06:03,675 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:06:03,676 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:06:03,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:06:03,680 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:06:03,680 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:06:03,681 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:06:03,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:06:03,682 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:06:03,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:06:03,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:06:03,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:06:03,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:06:03,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:06:03,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:06:03,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:06:03,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:06:03,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:06:03,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:06:03,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:06:03,690 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 21:06:03,711 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:06:03,711 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:06:03,712 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:06:03,712 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:06:03,713 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:06:03,713 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:06:03,713 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:06:03,714 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:06:03,714 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:06:03,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:06:03,714 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:06:03,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:06:03,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:06:03,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:06:03,715 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:06:03,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:06:03,715 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:06:03,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:06:03,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:06:03,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:06:03,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:06:03,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:06:03,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:06:03,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:06:03,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:06:03,717 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:06:03,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:06:03,718 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:06:03,718 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:06:03,718 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:06:03,718 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:06:03,718 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:06:03,719 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_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01d4ebb86f2bde0df0d47bbd5d9b632b620f2501e68770553e85fb2bb5a7d15a [2022-12-13 21:06:03,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:06:03,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:06:03,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:06:03,920 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:06:03,921 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:06:03,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2022-12-13 21:06:06,500 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:06:06,867 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:06:06,868 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2022-12-13 21:06:06,892 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/data/f495f7287/078a6da2254c4945bb06092c42d47cbf/FLAGeb73508ef [2022-12-13 21:06:06,906 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/data/f495f7287/078a6da2254c4945bb06092c42d47cbf [2022-12-13 21:06:06,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:06:06,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:06:06,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:06:06,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:06:06,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:06:06,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:06:06" (1/1) ... [2022-12-13 21:06:06,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a9e20f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:06, skipping insertion in model container [2022-12-13 21:06:06,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:06:06" (1/1) ... [2022-12-13 21:06:06,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:06:06,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:06:07,435 WARN L623 FunctionHandler]: Unknown extern function __kmalloc [2022-12-13 21:06:07,505 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-13 21:06:07,506 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-13 21:06:07,515 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-13 21:06:07,517 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:06:07,547 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-13 21:06:07,552 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-13 21:06:07,564 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-13 21:06:07,572 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-13 21:06:07,574 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 21:06:07,626 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 21:06:07,678 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 21:06:07,679 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 21:06:07,679 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:06:07,680 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:07,685 WARN L623 FunctionHandler]: Unknown extern function alloc_can_skb [2022-12-13 21:06:07,690 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-13 21:06:07,695 WARN L623 FunctionHandler]: Unknown extern function alloc_can_err_skb [2022-12-13 21:06:07,697 WARN L623 FunctionHandler]: Unknown extern function can_bus_off [2022-12-13 21:06:07,705 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-13 21:06:07,712 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 21:06:07,717 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:07,718 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 21:06:07,719 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:06:07,719 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:07,726 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 21:06:07,728 WARN L623 FunctionHandler]: Unknown extern function can_get_echo_skb [2022-12-13 21:06:07,737 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 21:06:07,753 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:07,754 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:07,756 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-13 21:06:07,756 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 21:06:07,757 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:06:07,757 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-13 21:06:07,758 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:06:07,759 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:06:07,760 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 21:06:07,761 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:06:07,761 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:06:07,763 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:06:07,764 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:06:07,768 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-12-13 21:06:07,769 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-12-13 21:06:07,769 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-12-13 21:06:07,774 WARN L623 FunctionHandler]: Unknown extern function open_candev [2022-12-13 21:06:07,775 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:06:07,775 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:06:07,776 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-12-13 21:06:07,782 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:07,783 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:07,787 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-13 21:06:07,788 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:06:07,790 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-13 21:06:07,790 WARN L623 FunctionHandler]: Unknown extern function can_put_echo_skb [2022-12-13 21:06:07,791 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 21:06:07,791 WARN L623 FunctionHandler]: Unknown extern function can_free_echo_skb [2022-12-13 21:06:07,792 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-13 21:06:07,792 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-13 21:06:07,793 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:06:07,793 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:06:07,795 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-13 21:06:07,799 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:06:07,800 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-12-13 21:06:07,807 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:06:07,814 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 21:06:07,824 WARN L623 FunctionHandler]: Unknown extern function alloc_candev [2022-12-13 21:06:07,824 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:07,827 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:07,828 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:07,829 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:07,830 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:07,831 WARN L623 FunctionHandler]: Unknown extern function register_candev [2022-12-13 21:06:07,831 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:07,832 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 21:06:07,832 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 21:06:07,833 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-12-13 21:06:07,837 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-13 21:06:07,837 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-12-13 21:06:07,838 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 21:06:07,844 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:06:07,845 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:06:07,849 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-13 21:06:07,866 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-13 21:06:07,867 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-13 21:06:07,868 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-13 21:06:07,869 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-13 21:06:07,874 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_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i[191320,191333] [2022-12-13 21:06:07,885 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-12-13 21:06:07,887 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-12-13 21:06:07,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:06:07,942 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:06:08,028 WARN L623 FunctionHandler]: Unknown extern function __kmalloc [2022-12-13 21:06:08,031 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-13 21:06:08,032 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-13 21:06:08,032 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-13 21:06:08,033 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:06:08,034 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-13 21:06:08,034 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-13 21:06:08,037 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-13 21:06:08,046 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-13 21:06:08,046 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 21:06:08,053 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 21:06:08,061 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 21:06:08,062 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 21:06:08,063 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:06:08,063 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:08,065 WARN L623 FunctionHandler]: Unknown extern function alloc_can_skb [2022-12-13 21:06:08,068 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-13 21:06:08,070 WARN L623 FunctionHandler]: Unknown extern function alloc_can_err_skb [2022-12-13 21:06:08,071 WARN L623 FunctionHandler]: Unknown extern function can_bus_off [2022-12-13 21:06:08,075 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-13 21:06:08,077 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 21:06:08,089 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:08,091 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 21:06:08,091 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:06:08,091 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:08,098 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 21:06:08,100 WARN L623 FunctionHandler]: Unknown extern function can_get_echo_skb [2022-12-13 21:06:08,102 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 21:06:08,105 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:08,106 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:08,108 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-13 21:06:08,108 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 21:06:08,108 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:06:08,109 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-13 21:06:08,109 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:06:08,111 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:06:08,112 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 21:06:08,112 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:06:08,112 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:06:08,113 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:06:08,114 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:06:08,115 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-12-13 21:06:08,115 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-12-13 21:06:08,115 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-12-13 21:06:08,116 WARN L623 FunctionHandler]: Unknown extern function open_candev [2022-12-13 21:06:08,116 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:06:08,116 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:06:08,117 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-12-13 21:06:08,118 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:08,119 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:08,121 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-13 21:06:08,121 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:06:08,125 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-13 21:06:08,125 WARN L623 FunctionHandler]: Unknown extern function can_put_echo_skb [2022-12-13 21:06:08,125 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 21:06:08,126 WARN L623 FunctionHandler]: Unknown extern function can_free_echo_skb [2022-12-13 21:06:08,126 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-13 21:06:08,126 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-13 21:06:08,126 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:06:08,126 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:06:08,128 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-13 21:06:08,129 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:06:08,130 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-12-13 21:06:08,132 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:06:08,134 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 21:06:08,136 WARN L623 FunctionHandler]: Unknown extern function alloc_candev [2022-12-13 21:06:08,136 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:08,137 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:08,138 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:08,138 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:08,139 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:08,140 WARN L623 FunctionHandler]: Unknown extern function register_candev [2022-12-13 21:06:08,140 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:06:08,141 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 21:06:08,141 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 21:06:08,141 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-12-13 21:06:08,142 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-13 21:06:08,142 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-12-13 21:06:08,142 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 21:06:08,143 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:06:08,144 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:06:08,144 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-13 21:06:08,145 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-13 21:06:08,146 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-13 21:06:08,146 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-13 21:06:08,146 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-13 21:06:08,147 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_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i[191320,191333] [2022-12-13 21:06:08,148 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-12-13 21:06:08,149 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-12-13 21:06:08,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:06:08,296 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:06:08,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:08 WrapperNode [2022-12-13 21:06:08,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:06:08,297 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:06:08,297 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:06:08,297 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:06:08,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:08" (1/1) ... [2022-12-13 21:06:08,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:08" (1/1) ... [2022-12-13 21:06:08,372 INFO L138 Inliner]: procedures = 133, calls = 749, calls flagged for inlining = 54, calls inlined = 44, statements flattened = 1391 [2022-12-13 21:06:08,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:06:08,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:06:08,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:06:08,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:06:08,380 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:08" (1/1) ... [2022-12-13 21:06:08,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:08" (1/1) ... [2022-12-13 21:06:08,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:08" (1/1) ... [2022-12-13 21:06:08,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:08" (1/1) ... [2022-12-13 21:06:08,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:08" (1/1) ... [2022-12-13 21:06:08,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:08" (1/1) ... [2022-12-13 21:06:08,432 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:08" (1/1) ... [2022-12-13 21:06:08,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:08" (1/1) ... [2022-12-13 21:06:08,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:06:08,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:06:08,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:06:08,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:06:08,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:08" (1/1) ... [2022-12-13 21:06:08,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:06:08,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:06:08,470 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:06:08,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:06:08,506 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-12-13 21:06:08,507 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-12-13 21:06:08,507 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_init [2022-12-13 21:06:08,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_init [2022-12-13 21:06:08,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 21:06:08,507 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-12-13 21:06:08,507 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-12-13 21:06:08,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-13 21:06:08,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-13 21:06:08,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 21:06:08,508 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-12-13 21:06:08,508 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-12-13 21:06:08,508 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_control_cmd [2022-12-13 21:06:08,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_control_cmd [2022-12-13 21:06:08,508 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-12-13 21:06:08,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-12-13 21:06:08,508 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-13 21:06:08,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-13 21:06:08,509 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_exit [2022-12-13 21:06:08,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_exit [2022-12-13 21:06:08,509 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2022-12-13 21:06:08,509 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2022-12-13 21:06:08,509 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-13 21:06:08,509 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-13 21:06:08,509 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2022-12-13 21:06:08,510 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2022-12-13 21:06:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 21:06:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-12-13 21:06:08,510 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-12-13 21:06:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2022-12-13 21:06:08,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2022-12-13 21:06:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-12-13 21:06:08,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-12-13 21:06:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-12-13 21:06:08,511 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-12-13 21:06:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_command_msg [2022-12-13 21:06:08,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_command_msg [2022-12-13 21:06:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 21:06:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2022-12-13 21:06:08,511 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2022-12-13 21:06:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:06:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-12-13 21:06:08,512 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-12-13 21:06:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 21:06:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 21:06:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_write_mode [2022-12-13 21:06:08,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_write_mode [2022-12-13 21:06:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-12-13 21:06:08,512 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-12-13 21:06:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-12-13 21:06:08,513 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-12-13 21:06:08,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 21:06:08,513 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-12-13 21:06:08,513 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-12-13 21:06:08,513 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-12-13 21:06:08,513 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-12-13 21:06:08,513 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-12-13 21:06:08,513 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-12-13 21:06:08,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-12-13 21:06:08,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-12-13 21:06:08,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 21:06:08,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 21:06:08,514 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-13 21:06:08,514 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-13 21:06:08,514 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-12-13 21:06:08,514 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-12-13 21:06:08,514 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-13 21:06:08,514 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-13 21:06:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-12-13 21:06:08,515 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-12-13 21:06:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-12-13 21:06:08,515 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-12-13 21:06:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-13 21:06:08,515 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-13 21:06:08,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2022-12-13 21:06:08,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2022-12-13 21:06:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2022-12-13 21:06:08,516 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2022-12-13 21:06:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:06:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2022-12-13 21:06:08,516 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2022-12-13 21:06:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-12-13 21:06:08,516 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-12-13 21:06:08,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-13 21:06:08,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:06:08,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:06:08,793 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:06:08,796 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:06:09,037 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2022-12-13 21:06:09,169 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-12-13 21:06:10,897 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !false; [2022-12-13 21:06:10,897 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume false; [2022-12-13 21:06:10,928 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:06:10,937 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:06:10,937 INFO L300 CfgBuilder]: Removed 13 assume(true) statements. [2022-12-13 21:06:10,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:06:10 BoogieIcfgContainer [2022-12-13 21:06:10,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:06:10,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:06:10,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:06:10,945 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:06:10,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:06:06" (1/3) ... [2022-12-13 21:06:10,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4352a562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:06:10, skipping insertion in model container [2022-12-13 21:06:10,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:06:08" (2/3) ... [2022-12-13 21:06:10,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4352a562 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:06:10, skipping insertion in model container [2022-12-13 21:06:10,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:06:10" (3/3) ... [2022-12-13 21:06:10,948 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2022-12-13 21:06:10,966 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:06:10,966 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 21:06:11,023 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:06:11,029 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;@3685e523, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:06:11,030 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 21:06:11,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 431 states, 304 states have (on average 1.3519736842105263) internal successors, (411), 316 states have internal predecessors, (411), 91 states have call successors, (91), 35 states have call predecessors, (91), 34 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2022-12-13 21:06:11,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 21:06:11,042 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:06:11,043 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:06:11,043 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:06:11,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:11,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1517292025, now seen corresponding path program 1 times [2022-12-13 21:06:11,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:11,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249825080] [2022-12-13 21:06:11,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:11,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:11,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:11,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:06:11,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:11,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:06:11,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:06:11,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249825080] [2022-12-13 21:06:11,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249825080] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:06:11,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:06:11,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:06:11,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792377847] [2022-12-13 21:06:11,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:06:11,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:06:11,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:06:11,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:06:11,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:06:11,464 INFO L87 Difference]: Start difference. First operand has 431 states, 304 states have (on average 1.3519736842105263) internal successors, (411), 316 states have internal predecessors, (411), 91 states have call successors, (91), 35 states have call predecessors, (91), 34 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 21:06:11,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:06:11,578 INFO L93 Difference]: Finished difference Result 1253 states and 1768 transitions. [2022-12-13 21:06:11,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:06:11,580 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-12-13 21:06:11,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:06:11,605 INFO L225 Difference]: With dead ends: 1253 [2022-12-13 21:06:11,605 INFO L226 Difference]: Without dead ends: 824 [2022-12-13 21:06:11,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:06:11,618 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 545 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:06:11,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 1229 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:06:11,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2022-12-13 21:06:11,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 820. [2022-12-13 21:06:11,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 581 states have (on average 1.2581755593803787) internal successors, (731), 593 states have internal predecessors, (731), 173 states have call successors, (173), 66 states have call predecessors, (173), 65 states have return successors, (172), 165 states have call predecessors, (172), 169 states have call successors, (172) [2022-12-13 21:06:11,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1076 transitions. [2022-12-13 21:06:11,748 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1076 transitions. Word has length 16 [2022-12-13 21:06:11,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:06:11,748 INFO L495 AbstractCegarLoop]: Abstraction has 820 states and 1076 transitions. [2022-12-13 21:06:11,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 21:06:11,749 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1076 transitions. [2022-12-13 21:06:11,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 21:06:11,749 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:06:11,749 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:06:11,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:06:11,750 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:06:11,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:11,750 INFO L85 PathProgramCache]: Analyzing trace with hash 208359179, now seen corresponding path program 1 times [2022-12-13 21:06:11,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:11,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429529711] [2022-12-13 21:06:11,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:11,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:11,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:11,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:06:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:11,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:06:11,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:06:11,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429529711] [2022-12-13 21:06:11,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429529711] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:06:11,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:06:11,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:06:11,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317337788] [2022-12-13 21:06:11,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:06:11,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:06:11,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:06:11,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:06:11,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:06:11,910 INFO L87 Difference]: Start difference. First operand 820 states and 1076 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 21:06:12,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:06:12,002 INFO L93 Difference]: Finished difference Result 2433 states and 3207 transitions. [2022-12-13 21:06:12,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:06:12,003 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-12-13 21:06:12,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:06:12,013 INFO L225 Difference]: With dead ends: 2433 [2022-12-13 21:06:12,013 INFO L226 Difference]: Without dead ends: 1617 [2022-12-13 21:06:12,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:06:12,018 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 535 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 535 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:06:12,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [535 Valid, 1161 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:06:12,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2022-12-13 21:06:12,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1610. [2022-12-13 21:06:12,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 1141 states have (on average 1.2541630148992111) internal successors, (1431), 1160 states have internal predecessors, (1431), 340 states have call successors, (340), 129 states have call predecessors, (340), 128 states have return successors, (346), 328 states have call predecessors, (346), 336 states have call successors, (346) [2022-12-13 21:06:12,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 2117 transitions. [2022-12-13 21:06:12,119 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 2117 transitions. Word has length 17 [2022-12-13 21:06:12,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:06:12,120 INFO L495 AbstractCegarLoop]: Abstraction has 1610 states and 2117 transitions. [2022-12-13 21:06:12,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 21:06:12,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 2117 transitions. [2022-12-13 21:06:12,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-13 21:06:12,123 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:06:12,123 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:06:12,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 21:06:12,124 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:06:12,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:12,124 INFO L85 PathProgramCache]: Analyzing trace with hash 26582145, now seen corresponding path program 1 times [2022-12-13 21:06:12,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:12,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514747306] [2022-12-13 21:06:12,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:12,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:12,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:06:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:12,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 21:06:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:12,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 21:06:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:12,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 21:06:12,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:12,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 21:06:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:12,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:12,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:06:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:12,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 21:06:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:12,559 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 21:06:12,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:06:12,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514747306] [2022-12-13 21:06:12,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514747306] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:06:12,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:06:12,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 21:06:12,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122674837] [2022-12-13 21:06:12,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:06:12,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 21:06:12,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:06:12,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 21:06:12,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:06:12,562 INFO L87 Difference]: Start difference. First operand 1610 states and 2117 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 21:06:14,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:06:14,762 INFO L93 Difference]: Finished difference Result 3324 states and 4411 transitions. [2022-12-13 21:06:14,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 21:06:14,763 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2022-12-13 21:06:14,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:06:14,770 INFO L225 Difference]: With dead ends: 3324 [2022-12-13 21:06:14,771 INFO L226 Difference]: Without dead ends: 1722 [2022-12-13 21:06:14,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-13 21:06:14,774 INFO L413 NwaCegarLoop]: 405 mSDtfsCounter, 242 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 1843 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:06:14,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 1843 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-13 21:06:14,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2022-12-13 21:06:14,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1610. [2022-12-13 21:06:14,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 1141 states have (on average 1.2532865907099036) internal successors, (1430), 1160 states have internal predecessors, (1430), 340 states have call successors, (340), 129 states have call predecessors, (340), 128 states have return successors, (346), 328 states have call predecessors, (346), 336 states have call successors, (346) [2022-12-13 21:06:14,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 2116 transitions. [2022-12-13 21:06:14,827 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 2116 transitions. Word has length 71 [2022-12-13 21:06:14,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:06:14,827 INFO L495 AbstractCegarLoop]: Abstraction has 1610 states and 2116 transitions. [2022-12-13 21:06:14,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 21:06:14,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 2116 transitions. [2022-12-13 21:06:14,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-13 21:06:14,829 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:06:14,829 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:06:14,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 21:06:14,829 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:06:14,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:14,830 INFO L85 PathProgramCache]: Analyzing trace with hash 2146869344, now seen corresponding path program 1 times [2022-12-13 21:06:14,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:14,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530851394] [2022-12-13 21:06:14,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:14,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:14,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:06:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:14,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 21:06:14,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:14,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 21:06:14,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:14,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 21:06:14,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:14,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 21:06:14,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:15,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:15,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:06:15,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:15,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 21:06:15,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:15,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 21:06:15,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:06:15,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530851394] [2022-12-13 21:06:15,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530851394] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:06:15,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:06:15,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:06:15,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831369515] [2022-12-13 21:06:15,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:06:15,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 21:06:15,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:06:15,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:06:15,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:06:15,021 INFO L87 Difference]: Start difference. First operand 1610 states and 2116 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 21:06:17,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:06:17,410 INFO L93 Difference]: Finished difference Result 4036 states and 5567 transitions. [2022-12-13 21:06:17,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:06:17,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2022-12-13 21:06:17,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:06:17,421 INFO L225 Difference]: With dead ends: 4036 [2022-12-13 21:06:17,421 INFO L226 Difference]: Without dead ends: 2437 [2022-12-13 21:06:17,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:06:17,427 INFO L413 NwaCegarLoop]: 481 mSDtfsCounter, 444 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 301 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:06:17,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 1251 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [301 Valid, 743 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-13 21:06:17,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2437 states. [2022-12-13 21:06:17,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2437 to 2313. [2022-12-13 21:06:17,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2313 states, 1640 states have (on average 1.2939024390243903) internal successors, (2122), 1675 states have internal predecessors, (2122), 544 states have call successors, (544), 129 states have call predecessors, (544), 128 states have return successors, (558), 524 states have call predecessors, (558), 540 states have call successors, (558) [2022-12-13 21:06:17,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2313 states to 2313 states and 3224 transitions. [2022-12-13 21:06:17,526 INFO L78 Accepts]: Start accepts. Automaton has 2313 states and 3224 transitions. Word has length 71 [2022-12-13 21:06:17,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:06:17,526 INFO L495 AbstractCegarLoop]: Abstraction has 2313 states and 3224 transitions. [2022-12-13 21:06:17,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 21:06:17,526 INFO L276 IsEmpty]: Start isEmpty. Operand 2313 states and 3224 transitions. [2022-12-13 21:06:17,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-13 21:06:17,528 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:06:17,529 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:06:17,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 21:06:17,529 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:06:17,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:17,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1152569613, now seen corresponding path program 1 times [2022-12-13 21:06:17,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:17,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609531675] [2022-12-13 21:06:17,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:17,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:17,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:17,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:06:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:17,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 21:06:17,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:17,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 21:06:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:17,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:17,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:17,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 21:06:17,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:17,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-12-13 21:06:17,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:17,743 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:06:17,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:06:17,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609531675] [2022-12-13 21:06:17,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609531675] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:06:17,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:06:17,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 21:06:17,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460662433] [2022-12-13 21:06:17,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:06:17,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:06:17,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:06:17,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:06:17,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:06:17,745 INFO L87 Difference]: Start difference. First operand 2313 states and 3224 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-13 21:06:18,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:06:18,887 INFO L93 Difference]: Finished difference Result 6341 states and 9294 transitions. [2022-12-13 21:06:18,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:06:18,888 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68 [2022-12-13 21:06:18,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:06:18,905 INFO L225 Difference]: With dead ends: 6341 [2022-12-13 21:06:18,905 INFO L226 Difference]: Without dead ends: 4040 [2022-12-13 21:06:18,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:06:18,910 INFO L413 NwaCegarLoop]: 750 mSDtfsCounter, 571 mSDsluCounter, 1759 mSDsCounter, 0 mSdLazyCounter, 857 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 2509 SdHoareTripleChecker+Invalid, 1126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 21:06:18,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 2509 Invalid, 1126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 857 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 21:06:18,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4040 states. [2022-12-13 21:06:19,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4040 to 2347. [2022-12-13 21:06:19,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2347 states, 1668 states have (on average 1.290167865707434) internal successors, (2152), 1705 states have internal predecessors, (2152), 544 states have call successors, (544), 129 states have call predecessors, (544), 134 states have return successors, (580), 528 states have call predecessors, (580), 540 states have call successors, (580) [2022-12-13 21:06:19,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2347 states to 2347 states and 3276 transitions. [2022-12-13 21:06:19,043 INFO L78 Accepts]: Start accepts. Automaton has 2347 states and 3276 transitions. Word has length 68 [2022-12-13 21:06:19,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:06:19,044 INFO L495 AbstractCegarLoop]: Abstraction has 2347 states and 3276 transitions. [2022-12-13 21:06:19,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-13 21:06:19,044 INFO L276 IsEmpty]: Start isEmpty. Operand 2347 states and 3276 transitions. [2022-12-13 21:06:19,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-13 21:06:19,046 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:06:19,046 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:06:19,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 21:06:19,046 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:06:19,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:19,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1776712988, now seen corresponding path program 1 times [2022-12-13 21:06:19,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:19,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47818970] [2022-12-13 21:06:19,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:19,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:19,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:06:19,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:19,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 21:06:19,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:19,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 21:06:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:19,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:19,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:19,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:19,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:19,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 21:06:19,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:19,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 21:06:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:19,295 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:06:19,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:06:19,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47818970] [2022-12-13 21:06:19,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47818970] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:06:19,295 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:06:19,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 21:06:19,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274103961] [2022-12-13 21:06:19,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:06:19,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:06:19,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:06:19,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:06:19,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:06:19,297 INFO L87 Difference]: Start difference. First operand 2347 states and 3276 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-13 21:06:20,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:06:20,267 INFO L93 Difference]: Finished difference Result 5919 states and 8590 transitions. [2022-12-13 21:06:20,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:06:20,267 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2022-12-13 21:06:20,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:06:20,278 INFO L225 Difference]: With dead ends: 5919 [2022-12-13 21:06:20,278 INFO L226 Difference]: Without dead ends: 3584 [2022-12-13 21:06:20,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:06:20,283 INFO L413 NwaCegarLoop]: 691 mSDtfsCounter, 460 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 2368 SdHoareTripleChecker+Invalid, 1042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 21:06:20,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 2368 Invalid, 1042 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 21:06:20,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3584 states. [2022-12-13 21:06:20,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3584 to 2363. [2022-12-13 21:06:20,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2363 states, 1684 states have (on average 1.2874109263657958) internal successors, (2168), 1721 states have internal predecessors, (2168), 544 states have call successors, (544), 129 states have call predecessors, (544), 134 states have return successors, (580), 528 states have call predecessors, (580), 540 states have call successors, (580) [2022-12-13 21:06:20,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2363 states to 2363 states and 3292 transitions. [2022-12-13 21:06:20,401 INFO L78 Accepts]: Start accepts. Automaton has 2363 states and 3292 transitions. Word has length 69 [2022-12-13 21:06:20,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:06:20,401 INFO L495 AbstractCegarLoop]: Abstraction has 2363 states and 3292 transitions. [2022-12-13 21:06:20,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-13 21:06:20,401 INFO L276 IsEmpty]: Start isEmpty. Operand 2363 states and 3292 transitions. [2022-12-13 21:06:20,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-13 21:06:20,403 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:06:20,403 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:06:20,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 21:06:20,403 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:06:20,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:20,404 INFO L85 PathProgramCache]: Analyzing trace with hash 676145405, now seen corresponding path program 1 times [2022-12-13 21:06:20,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:20,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724633261] [2022-12-13 21:06:20,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:20,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:20,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:06:20,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:20,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 21:06:20,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:20,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 21:06:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:20,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:20,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:20,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:20,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 21:06:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:20,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 21:06:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:20,799 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:06:20,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:06:20,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724633261] [2022-12-13 21:06:20,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724633261] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:06:20,799 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:06:20,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 21:06:20,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641573138] [2022-12-13 21:06:20,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:06:20,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 21:06:20,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:06:20,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 21:06:20,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-12-13 21:06:20,800 INFO L87 Difference]: Start difference. First operand 2363 states and 3292 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-13 21:06:21,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:06:21,980 INFO L93 Difference]: Finished difference Result 3619 states and 5113 transitions. [2022-12-13 21:06:21,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 21:06:21,980 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2022-12-13 21:06:21,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:06:21,990 INFO L225 Difference]: With dead ends: 3619 [2022-12-13 21:06:21,990 INFO L226 Difference]: Without dead ends: 2425 [2022-12-13 21:06:21,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-12-13 21:06:21,994 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 125 mSDsluCounter, 2300 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 2719 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:06:21,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 2719 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 21:06:21,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2425 states. [2022-12-13 21:06:22,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2425 to 2377. [2022-12-13 21:06:22,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2377 states, 1694 states have (on average 1.2845336481700118) internal successors, (2176), 1731 states have internal predecessors, (2176), 544 states have call successors, (544), 129 states have call predecessors, (544), 138 states have return successors, (592), 532 states have call predecessors, (592), 540 states have call successors, (592) [2022-12-13 21:06:22,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2377 states to 2377 states and 3312 transitions. [2022-12-13 21:06:22,146 INFO L78 Accepts]: Start accepts. Automaton has 2377 states and 3312 transitions. Word has length 69 [2022-12-13 21:06:22,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:06:22,147 INFO L495 AbstractCegarLoop]: Abstraction has 2377 states and 3312 transitions. [2022-12-13 21:06:22,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 5 states have internal predecessors, (54), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-13 21:06:22,147 INFO L276 IsEmpty]: Start isEmpty. Operand 2377 states and 3312 transitions. [2022-12-13 21:06:22,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-13 21:06:22,149 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:06:22,149 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:06:22,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 21:06:22,149 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:06:22,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:22,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1333958436, now seen corresponding path program 1 times [2022-12-13 21:06:22,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:22,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208998526] [2022-12-13 21:06:22,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:22,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:22,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:06:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:22,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 21:06:22,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:22,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 21:06:22,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:22,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:22,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:22,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 21:06:22,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:22,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 21:06:22,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:22,471 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:06:22,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:06:22,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208998526] [2022-12-13 21:06:22,472 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208998526] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:06:22,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:06:22,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 21:06:22,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98994525] [2022-12-13 21:06:22,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:06:22,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 21:06:22,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:06:22,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 21:06:22,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-12-13 21:06:22,473 INFO L87 Difference]: Start difference. First operand 2377 states and 3312 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-13 21:06:24,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:06:24,043 INFO L93 Difference]: Finished difference Result 5577 states and 8014 transitions. [2022-12-13 21:06:24,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 21:06:24,043 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2022-12-13 21:06:24,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:06:24,054 INFO L225 Difference]: With dead ends: 5577 [2022-12-13 21:06:24,054 INFO L226 Difference]: Without dead ends: 3212 [2022-12-13 21:06:24,058 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:06:24,059 INFO L413 NwaCegarLoop]: 792 mSDtfsCounter, 454 mSDsluCounter, 5507 mSDsCounter, 0 mSdLazyCounter, 2446 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 6299 SdHoareTripleChecker+Invalid, 2628 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 2446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 21:06:24,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [541 Valid, 6299 Invalid, 2628 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 2446 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 21:06:24,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3212 states. [2022-12-13 21:06:24,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3212 to 2381. [2022-12-13 21:06:24,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2381 states, 1698 states have (on average 1.28150765606596) internal successors, (2176), 1733 states have internal predecessors, (2176), 544 states have call successors, (544), 129 states have call predecessors, (544), 138 states have return successors, (592), 534 states have call predecessors, (592), 540 states have call successors, (592) [2022-12-13 21:06:24,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2381 states to 2381 states and 3312 transitions. [2022-12-13 21:06:24,168 INFO L78 Accepts]: Start accepts. Automaton has 2381 states and 3312 transitions. Word has length 69 [2022-12-13 21:06:24,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:06:24,168 INFO L495 AbstractCegarLoop]: Abstraction has 2381 states and 3312 transitions. [2022-12-13 21:06:24,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 7 states have internal predecessors, (54), 3 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-13 21:06:24,169 INFO L276 IsEmpty]: Start isEmpty. Operand 2381 states and 3312 transitions. [2022-12-13 21:06:24,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-13 21:06:24,170 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:06:24,170 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:06:24,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 21:06:24,170 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:06:24,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:24,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1804654053, now seen corresponding path program 1 times [2022-12-13 21:06:24,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:24,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386801797] [2022-12-13 21:06:24,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:24,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:24,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:24,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:06:24,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:24,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 21:06:24,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:24,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 21:06:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:24,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:24,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:24,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 21:06:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:24,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:24,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:24,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:24,439 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 21:06:24,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:06:24,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386801797] [2022-12-13 21:06:24,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386801797] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:06:24,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:06:24,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 21:06:24,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190186248] [2022-12-13 21:06:24,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:06:24,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 21:06:24,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:06:24,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 21:06:24,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 21:06:24,441 INFO L87 Difference]: Start difference. First operand 2381 states and 3312 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-13 21:06:26,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:06:26,017 INFO L93 Difference]: Finished difference Result 5739 states and 8248 transitions. [2022-12-13 21:06:26,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 21:06:26,017 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 75 [2022-12-13 21:06:26,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:06:26,028 INFO L225 Difference]: With dead ends: 5739 [2022-12-13 21:06:26,028 INFO L226 Difference]: Without dead ends: 3370 [2022-12-13 21:06:26,032 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:06:26,032 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 400 mSDsluCounter, 2858 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 3553 SdHoareTripleChecker+Invalid, 1502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 21:06:26,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 3553 Invalid, 1502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 21:06:26,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3370 states. [2022-12-13 21:06:26,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3370 to 2179. [2022-12-13 21:06:26,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2179 states, 1560 states have (on average 1.2717948717948717) internal successors, (1984), 1579 states have internal predecessors, (1984), 480 states have call successors, (480), 127 states have call predecessors, (480), 138 states have return successors, (532), 480 states have call predecessors, (532), 476 states have call successors, (532) [2022-12-13 21:06:26,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2179 states to 2179 states and 2996 transitions. [2022-12-13 21:06:26,146 INFO L78 Accepts]: Start accepts. Automaton has 2179 states and 2996 transitions. Word has length 75 [2022-12-13 21:06:26,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:06:26,146 INFO L495 AbstractCegarLoop]: Abstraction has 2179 states and 2996 transitions. [2022-12-13 21:06:26,146 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-13 21:06:26,147 INFO L276 IsEmpty]: Start isEmpty. Operand 2179 states and 2996 transitions. [2022-12-13 21:06:26,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-13 21:06:26,148 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:06:26,148 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:06:26,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 21:06:26,148 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:06:26,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:26,149 INFO L85 PathProgramCache]: Analyzing trace with hash -506709307, now seen corresponding path program 1 times [2022-12-13 21:06:26,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:26,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157190120] [2022-12-13 21:06:26,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:26,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:26,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:26,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:06:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:26,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 21:06:26,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:26,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 21:06:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:26,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:26,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:26,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:26,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 21:06:26,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:26,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:26,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:26,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:26,439 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 21:06:26,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:06:26,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157190120] [2022-12-13 21:06:26,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157190120] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:06:26,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:06:26,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 21:06:26,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511220803] [2022-12-13 21:06:26,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:06:26,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 21:06:26,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:06:26,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 21:06:26,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-13 21:06:26,441 INFO L87 Difference]: Start difference. First operand 2179 states and 2996 transitions. Second operand has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 6 states have internal predecessors, (53), 6 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (7), 4 states have call predecessors, (7), 5 states have call successors, (7) [2022-12-13 21:06:28,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:06:28,612 INFO L93 Difference]: Finished difference Result 3452 states and 4818 transitions. [2022-12-13 21:06:28,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 21:06:28,613 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 6 states have internal predecessors, (53), 6 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (7), 4 states have call predecessors, (7), 5 states have call successors, (7) Word has length 75 [2022-12-13 21:06:28,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:06:28,621 INFO L225 Difference]: With dead ends: 3452 [2022-12-13 21:06:28,621 INFO L226 Difference]: Without dead ends: 3447 [2022-12-13 21:06:28,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-12-13 21:06:28,622 INFO L413 NwaCegarLoop]: 671 mSDtfsCounter, 2426 mSDsluCounter, 1392 mSDsCounter, 0 mSdLazyCounter, 1828 mSolverCounterSat, 1096 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2538 SdHoareTripleChecker+Valid, 2063 SdHoareTripleChecker+Invalid, 2924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1096 IncrementalHoareTripleChecker+Valid, 1828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-13 21:06:28,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2538 Valid, 2063 Invalid, 2924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1096 Valid, 1828 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-13 21:06:28,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3447 states. [2022-12-13 21:06:28,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3447 to 3363. [2022-12-13 21:06:28,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3363 states, 2405 states have (on average 1.2752598752598752) internal successors, (3067), 2440 states have internal predecessors, (3067), 748 states have call successors, (748), 189 states have call predecessors, (748), 209 states have return successors, (870), 749 states have call predecessors, (870), 744 states have call successors, (870) [2022-12-13 21:06:28,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3363 states to 3363 states and 4685 transitions. [2022-12-13 21:06:28,760 INFO L78 Accepts]: Start accepts. Automaton has 3363 states and 4685 transitions. Word has length 75 [2022-12-13 21:06:28,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:06:28,760 INFO L495 AbstractCegarLoop]: Abstraction has 3363 states and 4685 transitions. [2022-12-13 21:06:28,761 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 6 states have internal predecessors, (53), 6 states have call successors, (9), 6 states have call predecessors, (9), 2 states have return successors, (7), 4 states have call predecessors, (7), 5 states have call successors, (7) [2022-12-13 21:06:28,761 INFO L276 IsEmpty]: Start isEmpty. Operand 3363 states and 4685 transitions. [2022-12-13 21:06:28,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 21:06:28,762 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:06:28,762 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:06:28,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 21:06:28,762 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:06:28,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:28,763 INFO L85 PathProgramCache]: Analyzing trace with hash -418091033, now seen corresponding path program 1 times [2022-12-13 21:06:28,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:28,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131726165] [2022-12-13 21:06:28,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:28,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:28,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:06:28,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:28,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 21:06:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:28,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 21:06:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:28,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:06:28,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:28,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:06:28,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:29,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 21:06:29,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:29,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:29,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:29,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:29,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:29,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 21:06:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:29,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:29,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:29,120 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 21:06:29,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:06:29,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131726165] [2022-12-13 21:06:29,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131726165] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:06:29,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:06:29,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 21:06:29,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122374744] [2022-12-13 21:06:29,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:06:29,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 21:06:29,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:06:29,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 21:06:29,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-12-13 21:06:29,123 INFO L87 Difference]: Start difference. First operand 3363 states and 4685 transitions. Second operand has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-12-13 21:06:30,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:06:30,454 INFO L93 Difference]: Finished difference Result 7643 states and 10959 transitions. [2022-12-13 21:06:30,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 21:06:30,454 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 94 [2022-12-13 21:06:30,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:06:30,465 INFO L225 Difference]: With dead ends: 7643 [2022-12-13 21:06:30,465 INFO L226 Difference]: Without dead ends: 4292 [2022-12-13 21:06:30,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-12-13 21:06:30,471 INFO L413 NwaCegarLoop]: 685 mSDtfsCounter, 620 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 1026 mSolverCounterSat, 388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 2656 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 388 IncrementalHoareTripleChecker+Valid, 1026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:06:30,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 2656 Invalid, 1414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [388 Valid, 1026 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-13 21:06:30,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4292 states. [2022-12-13 21:06:30,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4292 to 2826. [2022-12-13 21:06:30,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2826 states, 2031 states have (on average 1.2737567700640078) internal successors, (2587), 2057 states have internal predecessors, (2587), 624 states have call successors, (624), 153 states have call predecessors, (624), 170 states have return successors, (730), 631 states have call predecessors, (730), 620 states have call successors, (730) [2022-12-13 21:06:30,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2826 states to 2826 states and 3941 transitions. [2022-12-13 21:06:30,623 INFO L78 Accepts]: Start accepts. Automaton has 2826 states and 3941 transitions. Word has length 94 [2022-12-13 21:06:30,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:06:30,623 INFO L495 AbstractCegarLoop]: Abstraction has 2826 states and 3941 transitions. [2022-12-13 21:06:30,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.333333333333333) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (12), 6 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-12-13 21:06:30,624 INFO L276 IsEmpty]: Start isEmpty. Operand 2826 states and 3941 transitions. [2022-12-13 21:06:30,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-12-13 21:06:30,625 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:06:30,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:06:30,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 21:06:30,626 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:06:30,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:30,626 INFO L85 PathProgramCache]: Analyzing trace with hash 564700489, now seen corresponding path program 1 times [2022-12-13 21:06:30,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:30,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324311815] [2022-12-13 21:06:30,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:30,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:30,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:30,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:06:30,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:30,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 21:06:30,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:30,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 21:06:30,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:30,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:06:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:30,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:06:30,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:30,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 21:06:30,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:30,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:30,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:31,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:31,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:31,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-12-13 21:06:31,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:31,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-12-13 21:06:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:31,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-12-13 21:06:31,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:31,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:06:31,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:06:31,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324311815] [2022-12-13 21:06:31,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324311815] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:06:31,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:06:31,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-12-13 21:06:31,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912290257] [2022-12-13 21:06:31,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:06:31,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:06:31,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:06:31,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:06:31,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:06:31,067 INFO L87 Difference]: Start difference. First operand 2826 states and 3941 transitions. Second operand has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-13 21:06:33,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:06:33,164 INFO L93 Difference]: Finished difference Result 6776 states and 9771 transitions. [2022-12-13 21:06:33,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 21:06:33,164 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) Word has length 92 [2022-12-13 21:06:33,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:06:33,179 INFO L225 Difference]: With dead ends: 6776 [2022-12-13 21:06:33,179 INFO L226 Difference]: Without dead ends: 4370 [2022-12-13 21:06:33,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-12-13 21:06:33,186 INFO L413 NwaCegarLoop]: 685 mSDtfsCounter, 439 mSDsluCounter, 5103 mSDsCounter, 0 mSdLazyCounter, 2617 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 5788 SdHoareTripleChecker+Invalid, 2843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 2617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-13 21:06:33,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 5788 Invalid, 2843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 2617 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-13 21:06:33,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4370 states. [2022-12-13 21:06:33,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4370 to 2826. [2022-12-13 21:06:33,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2826 states, 2031 states have (on average 1.2698178237321516) internal successors, (2579), 2057 states have internal predecessors, (2579), 624 states have call successors, (624), 153 states have call predecessors, (624), 170 states have return successors, (730), 631 states have call predecessors, (730), 620 states have call successors, (730) [2022-12-13 21:06:33,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2826 states to 2826 states and 3933 transitions. [2022-12-13 21:06:33,342 INFO L78 Accepts]: Start accepts. Automaton has 2826 states and 3933 transitions. Word has length 92 [2022-12-13 21:06:33,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:06:33,343 INFO L495 AbstractCegarLoop]: Abstraction has 2826 states and 3933 transitions. [2022-12-13 21:06:33,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.3076923076923075) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (12), 5 states have call predecessors, (12), 4 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-13 21:06:33,343 INFO L276 IsEmpty]: Start isEmpty. Operand 2826 states and 3933 transitions. [2022-12-13 21:06:33,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-13 21:06:33,344 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:06:33,344 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:06:33,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 21:06:33,345 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:06:33,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:33,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1871827029, now seen corresponding path program 1 times [2022-12-13 21:06:33,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:33,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088505953] [2022-12-13 21:06:33,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:33,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:33,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:06:33,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:33,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 21:06:33,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:33,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 21:06:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:33,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:33,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:33,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:33,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 21:06:33,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:33,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:33,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:33,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 21:06:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:33,727 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 21:06:33,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:06:33,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088505953] [2022-12-13 21:06:33,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088505953] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:06:33,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:06:33,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 21:06:33,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081079235] [2022-12-13 21:06:33,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:06:33,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 21:06:33,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:06:33,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 21:06:33,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-13 21:06:33,729 INFO L87 Difference]: Start difference. First operand 2826 states and 3933 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-12-13 21:06:34,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:06:34,916 INFO L93 Difference]: Finished difference Result 6262 states and 9007 transitions. [2022-12-13 21:06:34,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 21:06:34,917 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2022-12-13 21:06:34,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:06:34,924 INFO L225 Difference]: With dead ends: 6262 [2022-12-13 21:06:34,924 INFO L226 Difference]: Without dead ends: 3856 [2022-12-13 21:06:34,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:06:34,928 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 519 mSDsluCounter, 2003 mSDsCounter, 0 mSdLazyCounter, 989 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 2693 SdHoareTripleChecker+Invalid, 1274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 21:06:34,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 2693 Invalid, 1274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 989 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 21:06:34,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3856 states. [2022-12-13 21:06:35,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3856 to 2636. [2022-12-13 21:06:35,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2636 states, 1899 states have (on average 1.2622432859399684) internal successors, (2397), 1911 states have internal predecessors, (2397), 568 states have call successors, (568), 151 states have call predecessors, (568), 168 states have return successors, (670), 585 states have call predecessors, (670), 564 states have call successors, (670) [2022-12-13 21:06:35,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2636 states to 2636 states and 3635 transitions. [2022-12-13 21:06:35,069 INFO L78 Accepts]: Start accepts. Automaton has 2636 states and 3635 transitions. Word has length 87 [2022-12-13 21:06:35,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:06:35,069 INFO L495 AbstractCegarLoop]: Abstraction has 2636 states and 3635 transitions. [2022-12-13 21:06:35,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 4 states have internal predecessors, (63), 3 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-12-13 21:06:35,069 INFO L276 IsEmpty]: Start isEmpty. Operand 2636 states and 3635 transitions. [2022-12-13 21:06:35,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-13 21:06:35,071 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:06:35,071 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:06:35,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 21:06:35,071 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:06:35,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:35,071 INFO L85 PathProgramCache]: Analyzing trace with hash -205382314, now seen corresponding path program 1 times [2022-12-13 21:06:35,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:35,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771336267] [2022-12-13 21:06:35,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:35,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:35,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:35,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:06:35,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:35,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 21:06:35,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:35,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 21:06:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:35,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:35,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:35,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:35,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:35,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 21:06:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:35,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:35,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:35,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:35,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 21:06:35,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:35,434 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 21:06:35,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:06:35,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771336267] [2022-12-13 21:06:35,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771336267] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:06:35,435 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:06:35,435 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 21:06:35,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749868746] [2022-12-13 21:06:35,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:06:35,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:06:35,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:06:35,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:06:35,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:06:35,436 INFO L87 Difference]: Start difference. First operand 2636 states and 3635 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-12-13 21:06:36,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:06:36,816 INFO L93 Difference]: Finished difference Result 3905 states and 5433 transitions. [2022-12-13 21:06:36,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-12-13 21:06:36,817 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) Word has length 87 [2022-12-13 21:06:36,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:06:36,822 INFO L225 Difference]: With dead ends: 3905 [2022-12-13 21:06:36,822 INFO L226 Difference]: Without dead ends: 2681 [2022-12-13 21:06:36,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2022-12-13 21:06:36,825 INFO L413 NwaCegarLoop]: 409 mSDtfsCounter, 350 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 1236 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 2399 SdHoareTripleChecker+Invalid, 1521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 1236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:06:36,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 2399 Invalid, 1521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 1236 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 21:06:36,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2681 states. [2022-12-13 21:06:36,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2681 to 2644. [2022-12-13 21:06:36,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2644 states, 1907 states have (on average 1.261143156790771) internal successors, (2405), 1915 states have internal predecessors, (2405), 568 states have call successors, (568), 151 states have call predecessors, (568), 168 states have return successors, (670), 589 states have call predecessors, (670), 564 states have call successors, (670) [2022-12-13 21:06:36,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2644 states to 2644 states and 3643 transitions. [2022-12-13 21:06:36,958 INFO L78 Accepts]: Start accepts. Automaton has 2644 states and 3643 transitions. Word has length 87 [2022-12-13 21:06:36,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:06:36,958 INFO L495 AbstractCegarLoop]: Abstraction has 2644 states and 3643 transitions. [2022-12-13 21:06:36,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 5 states have internal predecessors, (66), 3 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 3 states have call successors, (9) [2022-12-13 21:06:36,958 INFO L276 IsEmpty]: Start isEmpty. Operand 2644 states and 3643 transitions. [2022-12-13 21:06:36,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-13 21:06:36,959 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:06:36,959 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:06:36,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 21:06:36,960 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:06:36,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:36,960 INFO L85 PathProgramCache]: Analyzing trace with hash 2079481141, now seen corresponding path program 1 times [2022-12-13 21:06:36,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:36,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560633901] [2022-12-13 21:06:36,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:36,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:36,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:37,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:06:37,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:37,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 21:06:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:37,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 21:06:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:37,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:37,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:37,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:37,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:37,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 21:06:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:37,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:37,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:37,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:37,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:37,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 21:06:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:37,116 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 21:06:37,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:06:37,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560633901] [2022-12-13 21:06:37,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560633901] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:06:37,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:06:37,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 21:06:37,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446764107] [2022-12-13 21:06:37,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:06:37,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:06:37,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:06:37,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:06:37,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:06:37,117 INFO L87 Difference]: Start difference. First operand 2644 states and 3643 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2022-12-13 21:06:38,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:06:38,103 INFO L93 Difference]: Finished difference Result 4660 states and 6627 transitions. [2022-12-13 21:06:38,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:06:38,104 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) Word has length 87 [2022-12-13 21:06:38,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:06:38,113 INFO L225 Difference]: With dead ends: 4660 [2022-12-13 21:06:38,113 INFO L226 Difference]: Without dead ends: 3432 [2022-12-13 21:06:38,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:06:38,117 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 429 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 21:06:38,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 1992 Invalid, 892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 21:06:38,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3432 states. [2022-12-13 21:06:38,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3432 to 2652. [2022-12-13 21:06:38,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2652 states, 1915 states have (on average 1.2600522193211487) internal successors, (2413), 1923 states have internal predecessors, (2413), 568 states have call successors, (568), 151 states have call predecessors, (568), 168 states have return successors, (670), 589 states have call predecessors, (670), 564 states have call successors, (670) [2022-12-13 21:06:38,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2652 states to 2652 states and 3651 transitions. [2022-12-13 21:06:38,279 INFO L78 Accepts]: Start accepts. Automaton has 2652 states and 3651 transitions. Word has length 87 [2022-12-13 21:06:38,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:06:38,279 INFO L495 AbstractCegarLoop]: Abstraction has 2652 states and 3651 transitions. [2022-12-13 21:06:38,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 3 states have internal predecessors, (62), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 3 states have call successors, (8) [2022-12-13 21:06:38,280 INFO L276 IsEmpty]: Start isEmpty. Operand 2652 states and 3651 transitions. [2022-12-13 21:06:38,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 21:06:38,281 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:06:38,281 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:06:38,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 21:06:38,281 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:06:38,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:38,282 INFO L85 PathProgramCache]: Analyzing trace with hash 390816807, now seen corresponding path program 1 times [2022-12-13 21:06:38,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:38,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723441593] [2022-12-13 21:06:38,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:38,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:38,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:38,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:06:38,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:38,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 21:06:38,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:38,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-12-13 21:06:38,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:38,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-12-13 21:06:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:38,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 21:06:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:38,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-12-13 21:06:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:38,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-12-13 21:06:38,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:38,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:38,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:06:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:38,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-12-13 21:06:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:38,413 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-13 21:06:38,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:06:38,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723441593] [2022-12-13 21:06:38,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723441593] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:06:38,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:06:38,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 21:06:38,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128526168] [2022-12-13 21:06:38,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:06:38,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:06:38,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:06:38,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:06:38,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:06:38,415 INFO L87 Difference]: Start difference. First operand 2652 states and 3651 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-12-13 21:06:40,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:06:40,546 INFO L93 Difference]: Finished difference Result 5424 states and 7473 transitions. [2022-12-13 21:06:40,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 21:06:40,547 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 94 [2022-12-13 21:06:40,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:06:40,554 INFO L225 Difference]: With dead ends: 5424 [2022-12-13 21:06:40,555 INFO L226 Difference]: Without dead ends: 2778 [2022-12-13 21:06:40,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-13 21:06:40,561 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 254 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-13 21:06:40,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 1520 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-13 21:06:40,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2778 states. [2022-12-13 21:06:40,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2778 to 2664. [2022-12-13 21:06:40,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2664 states, 1923 states have (on average 1.2584503380135206) internal successors, (2420), 1931 states have internal predecessors, (2420), 570 states have call successors, (570), 153 states have call predecessors, (570), 170 states have return successors, (672), 591 states have call predecessors, (672), 566 states have call successors, (672) [2022-12-13 21:06:40,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3662 transitions. [2022-12-13 21:06:40,735 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3662 transitions. Word has length 94 [2022-12-13 21:06:40,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:06:40,735 INFO L495 AbstractCegarLoop]: Abstraction has 2664 states and 3662 transitions. [2022-12-13 21:06:40,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 3 states have call successors, (12), 4 states have call predecessors, (12), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-12-13 21:06:40,735 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3662 transitions. [2022-12-13 21:06:40,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-13 21:06:40,736 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:06:40,736 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:06:40,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 21:06:40,737 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:06:40,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:40,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1118734186, now seen corresponding path program 1 times [2022-12-13 21:06:40,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:40,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458865977] [2022-12-13 21:06:40,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:40,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:40,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:06:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:40,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 21:06:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:40,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 21:06:40,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:40,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:40,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:40,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:40,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 21:06:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:41,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:41,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:41,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:41,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 21:06:41,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:41,016 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 21:06:41,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:06:41,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458865977] [2022-12-13 21:06:41,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458865977] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:06:41,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:06:41,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 21:06:41,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031468509] [2022-12-13 21:06:41,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:06:41,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 21:06:41,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:06:41,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 21:06:41,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-12-13 21:06:41,018 INFO L87 Difference]: Start difference. First operand 2664 states and 3662 transitions. Second operand has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 6 states have internal predecessors, (64), 6 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2022-12-13 21:06:43,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:06:43,243 INFO L93 Difference]: Finished difference Result 3982 states and 5507 transitions. [2022-12-13 21:06:43,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 21:06:43,243 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 6 states have internal predecessors, (64), 6 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) Word has length 89 [2022-12-13 21:06:43,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:06:43,251 INFO L225 Difference]: With dead ends: 3982 [2022-12-13 21:06:43,251 INFO L226 Difference]: Without dead ends: 3979 [2022-12-13 21:06:43,252 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2022-12-13 21:06:43,253 INFO L413 NwaCegarLoop]: 747 mSDtfsCounter, 2068 mSDsluCounter, 1895 mSDsCounter, 0 mSdLazyCounter, 2176 mSolverCounterSat, 868 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2197 SdHoareTripleChecker+Valid, 2642 SdHoareTripleChecker+Invalid, 3044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 868 IncrementalHoareTripleChecker+Valid, 2176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-13 21:06:43,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2197 Valid, 2642 Invalid, 3044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [868 Valid, 2176 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-13 21:06:43,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3979 states. [2022-12-13 21:06:43,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3979 to 3879. [2022-12-13 21:06:43,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3879 states, 2797 states have (on average 1.2609939220593493) internal successors, (3527), 2814 states have internal predecessors, (3527), 838 states have call successors, (838), 215 states have call predecessors, (838), 243 states have return successors, (1014), 869 states have call predecessors, (1014), 834 states have call successors, (1014) [2022-12-13 21:06:43,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3879 states to 3879 states and 5379 transitions. [2022-12-13 21:06:43,467 INFO L78 Accepts]: Start accepts. Automaton has 3879 states and 5379 transitions. Word has length 89 [2022-12-13 21:06:43,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:06:43,468 INFO L495 AbstractCegarLoop]: Abstraction has 3879 states and 5379 transitions. [2022-12-13 21:06:43,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.111111111111111) internal successors, (64), 6 states have internal predecessors, (64), 6 states have call successors, (10), 6 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 5 states have call successors, (8) [2022-12-13 21:06:43,468 INFO L276 IsEmpty]: Start isEmpty. Operand 3879 states and 5379 transitions. [2022-12-13 21:06:43,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 21:06:43,469 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:06:43,469 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:06:43,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-13 21:06:43,469 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:06:43,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:43,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1748979270, now seen corresponding path program 1 times [2022-12-13 21:06:43,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:43,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906273049] [2022-12-13 21:06:43,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:43,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:43,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:06:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:43,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 21:06:43,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:43,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 21:06:43,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:43,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:43,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:43,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:43,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 21:06:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:43,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:43,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:43,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:43,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 21:06:43,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:43,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-12-13 21:06:43,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:43,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-12-13 21:06:43,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:43,929 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 21:06:43,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:06:43,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906273049] [2022-12-13 21:06:43,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906273049] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:06:43,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658836381] [2022-12-13 21:06:43,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:43,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:06:43,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:06:43,931 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:06:43,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 21:06:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:44,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 1365 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-13 21:06:44,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:06:44,455 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 21:06:44,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:06:44,608 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 21:06:44,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658836381] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:06:44,608 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:06:44,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 26 [2022-12-13 21:06:44,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469658288] [2022-12-13 21:06:44,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:06:44,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-12-13 21:06:44,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:06:44,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-12-13 21:06:44,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=596, Unknown=0, NotChecked=0, Total=650 [2022-12-13 21:06:44,610 INFO L87 Difference]: Start difference. First operand 3879 states and 5379 transitions. Second operand has 26 states, 26 states have (on average 3.769230769230769) internal successors, (98), 16 states have internal predecessors, (98), 5 states have call successors, (19), 6 states have call predecessors, (19), 9 states have return successors, (19), 10 states have call predecessors, (19), 5 states have call successors, (19) [2022-12-13 21:06:49,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:06:49,815 INFO L93 Difference]: Finished difference Result 11133 states and 16255 transitions. [2022-12-13 21:06:49,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 21:06:49,816 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.769230769230769) internal successors, (98), 16 states have internal predecessors, (98), 5 states have call successors, (19), 6 states have call predecessors, (19), 9 states have return successors, (19), 10 states have call predecessors, (19), 5 states have call successors, (19) Word has length 94 [2022-12-13 21:06:49,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:06:49,829 INFO L225 Difference]: With dead ends: 11133 [2022-12-13 21:06:49,829 INFO L226 Difference]: Without dead ends: 7266 [2022-12-13 21:06:49,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=177, Invalid=1715, Unknown=0, NotChecked=0, Total=1892 [2022-12-13 21:06:49,836 INFO L413 NwaCegarLoop]: 795 mSDtfsCounter, 1034 mSDsluCounter, 12665 mSDsCounter, 0 mSdLazyCounter, 7900 mSolverCounterSat, 544 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1097 SdHoareTripleChecker+Valid, 13460 SdHoareTripleChecker+Invalid, 8444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 544 IncrementalHoareTripleChecker+Valid, 7900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-12-13 21:06:49,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1097 Valid, 13460 Invalid, 8444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [544 Valid, 7900 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2022-12-13 21:06:49,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7266 states. [2022-12-13 21:06:50,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7266 to 3833. [2022-12-13 21:06:50,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3833 states, 2762 states have (on average 1.2617668356263576) internal successors, (3485), 2796 states have internal predecessors, (3485), 834 states have call successors, (834), 215 states have call predecessors, (834), 236 states have return successors, (952), 835 states have call predecessors, (952), 828 states have call successors, (952) [2022-12-13 21:06:50,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3833 states to 3833 states and 5271 transitions. [2022-12-13 21:06:50,101 INFO L78 Accepts]: Start accepts. Automaton has 3833 states and 5271 transitions. Word has length 94 [2022-12-13 21:06:50,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:06:50,101 INFO L495 AbstractCegarLoop]: Abstraction has 3833 states and 5271 transitions. [2022-12-13 21:06:50,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.769230769230769) internal successors, (98), 16 states have internal predecessors, (98), 5 states have call successors, (19), 6 states have call predecessors, (19), 9 states have return successors, (19), 10 states have call predecessors, (19), 5 states have call successors, (19) [2022-12-13 21:06:50,101 INFO L276 IsEmpty]: Start isEmpty. Operand 3833 states and 5271 transitions. [2022-12-13 21:06:50,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-13 21:06:50,103 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:06:50,103 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:06:50,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 21:06:50,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-12-13 21:06:50,304 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:06:50,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:50,304 INFO L85 PathProgramCache]: Analyzing trace with hash -448437055, now seen corresponding path program 1 times [2022-12-13 21:06:50,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:50,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876059580] [2022-12-13 21:06:50,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:50,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:50,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:50,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:06:50,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:50,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 21:06:50,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:50,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 21:06:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:50,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:50,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:50,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 21:06:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:50,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:50,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:50,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:50,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 21:06:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:50,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 21:06:50,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:50,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 21:06:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:50,692 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 21:06:50,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:06:50,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876059580] [2022-12-13 21:06:50,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876059580] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:06:50,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:06:50,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 21:06:50,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054577040] [2022-12-13 21:06:50,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:06:50,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 21:06:50,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:06:50,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 21:06:50,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-12-13 21:06:50,694 INFO L87 Difference]: Start difference. First operand 3833 states and 5271 transitions. Second operand has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 9 states have internal predecessors, (67), 6 states have call successors, (11), 6 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2022-12-13 21:06:53,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:06:53,492 INFO L93 Difference]: Finished difference Result 10144 states and 13936 transitions. [2022-12-13 21:06:53,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 21:06:53,493 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 9 states have internal predecessors, (67), 6 states have call successors, (11), 6 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 96 [2022-12-13 21:06:53,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:06:53,506 INFO L225 Difference]: With dead ends: 10144 [2022-12-13 21:06:53,506 INFO L226 Difference]: Without dead ends: 8384 [2022-12-13 21:06:53,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2022-12-13 21:06:53,511 INFO L413 NwaCegarLoop]: 657 mSDtfsCounter, 1927 mSDsluCounter, 2846 mSDsCounter, 0 mSdLazyCounter, 2807 mSolverCounterSat, 838 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2040 SdHoareTripleChecker+Valid, 3503 SdHoareTripleChecker+Invalid, 3645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 838 IncrementalHoareTripleChecker+Valid, 2807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:06:53,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2040 Valid, 3503 Invalid, 3645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [838 Valid, 2807 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-13 21:06:53,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8384 states. [2022-12-13 21:06:53,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8384 to 8132. [2022-12-13 21:06:53,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8132 states, 5885 states have (on average 1.2677994902293968) internal successors, (7461), 5936 states have internal predecessors, (7461), 1737 states have call successors, (1737), 461 states have call predecessors, (1737), 509 states have return successors, (1983), 1758 states have call predecessors, (1983), 1731 states have call successors, (1983) [2022-12-13 21:06:54,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8132 states to 8132 states and 11181 transitions. [2022-12-13 21:06:54,015 INFO L78 Accepts]: Start accepts. Automaton has 8132 states and 11181 transitions. Word has length 96 [2022-12-13 21:06:54,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:06:54,015 INFO L495 AbstractCegarLoop]: Abstraction has 8132 states and 11181 transitions. [2022-12-13 21:06:54,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.583333333333333) internal successors, (67), 9 states have internal predecessors, (67), 6 states have call successors, (11), 6 states have call predecessors, (11), 3 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2022-12-13 21:06:54,016 INFO L276 IsEmpty]: Start isEmpty. Operand 8132 states and 11181 transitions. [2022-12-13 21:06:54,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-13 21:06:54,017 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:06:54,017 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:06:54,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-13 21:06:54,017 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:06:54,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:54,017 INFO L85 PathProgramCache]: Analyzing trace with hash 832679025, now seen corresponding path program 1 times [2022-12-13 21:06:54,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:54,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32776521] [2022-12-13 21:06:54,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:54,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:54,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:54,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:06:54,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:54,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 21:06:54,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:54,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 21:06:54,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:54,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:54,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:54,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:54,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:54,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 21:06:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:54,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:54,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:54,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-12-13 21:06:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:54,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 21:06:54,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:54,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-12-13 21:06:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:54,331 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 21:06:54,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:06:54,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32776521] [2022-12-13 21:06:54,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32776521] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:06:54,331 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:06:54,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-12-13 21:06:54,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993108203] [2022-12-13 21:06:54,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:06:54,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 21:06:54,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:06:54,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 21:06:54,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-12-13 21:06:54,333 INFO L87 Difference]: Start difference. First operand 8132 states and 11181 transitions. Second operand has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-13 21:06:57,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:06:57,396 INFO L93 Difference]: Finished difference Result 17611 states and 24834 transitions. [2022-12-13 21:06:57,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 21:06:57,397 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) Word has length 97 [2022-12-13 21:06:57,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:06:57,415 INFO L225 Difference]: With dead ends: 17611 [2022-12-13 21:06:57,415 INFO L226 Difference]: Without dead ends: 10847 [2022-12-13 21:06:57,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2022-12-13 21:06:57,425 INFO L413 NwaCegarLoop]: 671 mSDtfsCounter, 470 mSDsluCounter, 5641 mSDsCounter, 0 mSdLazyCounter, 3262 mSolverCounterSat, 198 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 6312 SdHoareTripleChecker+Invalid, 3460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 198 IncrementalHoareTripleChecker+Valid, 3262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:06:57,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 6312 Invalid, 3460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [198 Valid, 3262 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-13 21:06:57,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10847 states. [2022-12-13 21:06:58,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10847 to 8126. [2022-12-13 21:06:58,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8126 states, 5879 states have (on average 1.2639904745705053) internal successors, (7431), 5933 states have internal predecessors, (7431), 1737 states have call successors, (1737), 461 states have call predecessors, (1737), 509 states have return successors, (1983), 1755 states have call predecessors, (1983), 1731 states have call successors, (1983) [2022-12-13 21:06:58,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8126 states to 8126 states and 11151 transitions. [2022-12-13 21:06:58,112 INFO L78 Accepts]: Start accepts. Automaton has 8126 states and 11151 transitions. Word has length 97 [2022-12-13 21:06:58,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:06:58,113 INFO L495 AbstractCegarLoop]: Abstraction has 8126 states and 11151 transitions. [2022-12-13 21:06:58,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.214285714285714) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (11), 5 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-13 21:06:58,113 INFO L276 IsEmpty]: Start isEmpty. Operand 8126 states and 11151 transitions. [2022-12-13 21:06:58,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-12-13 21:06:58,115 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:06:58,115 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:06:58,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-13 21:06:58,116 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:06:58,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:06:58,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1118058599, now seen corresponding path program 1 times [2022-12-13 21:06:58,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:06:58,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876845704] [2022-12-13 21:06:58,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:58,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:06:58,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:58,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:06:58,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:58,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 21:06:58,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:58,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 21:06:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:58,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 21:06:58,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:58,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 21:06:58,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:58,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 21:06:58,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:58,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-12-13 21:06:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:58,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:06:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:58,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:06:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:58,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-12-13 21:06:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:58,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-12-13 21:06:58,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:58,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-12-13 21:06:58,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:58,413 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-13 21:06:58,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:06:58,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876845704] [2022-12-13 21:06:58,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876845704] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:06:58,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [389509966] [2022-12-13 21:06:58,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:06:58,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:06:58,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:06:58,414 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:06:58,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 21:06:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:06:58,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 1583 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 21:06:58,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:06:58,752 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 21:06:58,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:06:58,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [389509966] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:06:58,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 21:06:58,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2022-12-13 21:06:58,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444068328] [2022-12-13 21:06:58,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:06:58,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:06:58,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:06:58,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:06:58,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:06:58,753 INFO L87 Difference]: Start difference. First operand 8126 states and 11151 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 21:06:59,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:06:59,505 INFO L93 Difference]: Finished difference Result 16288 states and 22354 transitions. [2022-12-13 21:06:59,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:06:59,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2022-12-13 21:06:59,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:06:59,519 INFO L225 Difference]: With dead ends: 16288 [2022-12-13 21:06:59,519 INFO L226 Difference]: Without dead ends: 8174 [2022-12-13 21:06:59,529 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:06:59,529 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 1 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1083 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:06:59,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1083 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:06:59,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8174 states. [2022-12-13 21:07:00,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8174 to 8158. [2022-12-13 21:07:00,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8158 states, 5911 states have (on average 1.2625613263407207) internal successors, (7463), 5965 states have internal predecessors, (7463), 1737 states have call successors, (1737), 461 states have call predecessors, (1737), 509 states have return successors, (1983), 1755 states have call predecessors, (1983), 1731 states have call successors, (1983) [2022-12-13 21:07:00,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8158 states to 8158 states and 11183 transitions. [2022-12-13 21:07:00,106 INFO L78 Accepts]: Start accepts. Automaton has 8158 states and 11183 transitions. Word has length 108 [2022-12-13 21:07:00,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:07:00,106 INFO L495 AbstractCegarLoop]: Abstraction has 8158 states and 11183 transitions. [2022-12-13 21:07:00,106 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 21:07:00,107 INFO L276 IsEmpty]: Start isEmpty. Operand 8158 states and 11183 transitions. [2022-12-13 21:07:00,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-12-13 21:07:00,108 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:07:00,108 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:07:00,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 21:07:00,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-12-13 21:07:00,309 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:07:00,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:07:00,310 INFO L85 PathProgramCache]: Analyzing trace with hash 920282283, now seen corresponding path program 1 times [2022-12-13 21:07:00,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:07:00,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113692237] [2022-12-13 21:07:00,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:07:00,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:07:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:00,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:07:00,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:00,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 21:07:00,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:00,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 21:07:00,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:00,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:07:00,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:00,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:07:00,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:00,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 21:07:00,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:00,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:07:00,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:00,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:07:00,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:00,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 21:07:00,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:00,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:07:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:00,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:07:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:00,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 21:07:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:00,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 21:07:00,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:00,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-12-13 21:07:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:00,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 21:07:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:00,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-12-13 21:07:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:00,644 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 21:07:00,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:07:00,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113692237] [2022-12-13 21:07:00,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113692237] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:07:00,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:07:00,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 21:07:00,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787054623] [2022-12-13 21:07:00,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:07:00,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:07:00,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:07:00,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:07:00,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:07:00,646 INFO L87 Difference]: Start difference. First operand 8158 states and 11183 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 21:07:07,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:07:08,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:07:08,343 INFO L93 Difference]: Finished difference Result 18980 states and 26789 transitions. [2022-12-13 21:07:08,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 21:07:08,344 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 120 [2022-12-13 21:07:08,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:07:08,365 INFO L225 Difference]: With dead ends: 18980 [2022-12-13 21:07:08,365 INFO L226 Difference]: Without dead ends: 12202 [2022-12-13 21:07:08,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2022-12-13 21:07:08,378 INFO L413 NwaCegarLoop]: 675 mSDtfsCounter, 520 mSDsluCounter, 2901 mSDsCounter, 0 mSdLazyCounter, 1819 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 3576 SdHoareTripleChecker+Invalid, 2123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 1819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-12-13 21:07:08,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [588 Valid, 3576 Invalid, 2123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 1819 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-12-13 21:07:08,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12202 states. [2022-12-13 21:07:08,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12202 to 7987. [2022-12-13 21:07:08,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7987 states, 5818 states have (on average 1.2619456858026814) internal successors, (7342), 5860 states have internal predecessors, (7342), 1675 states have call successors, (1675), 445 states have call predecessors, (1675), 493 states have return successors, (1921), 1705 states have call predecessors, (1921), 1669 states have call successors, (1921) [2022-12-13 21:07:08,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7987 states to 7987 states and 10938 transitions. [2022-12-13 21:07:08,977 INFO L78 Accepts]: Start accepts. Automaton has 7987 states and 10938 transitions. Word has length 120 [2022-12-13 21:07:08,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:07:08,977 INFO L495 AbstractCegarLoop]: Abstraction has 7987 states and 10938 transitions. [2022-12-13 21:07:08,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 4 states have internal predecessors, (80), 3 states have call successors, (17), 7 states have call predecessors, (17), 2 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 21:07:08,977 INFO L276 IsEmpty]: Start isEmpty. Operand 7987 states and 10938 transitions. [2022-12-13 21:07:08,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-13 21:07:08,978 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:07:08,978 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:07:08,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-12-13 21:07:08,978 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:07:08,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:07:08,979 INFO L85 PathProgramCache]: Analyzing trace with hash -2053204873, now seen corresponding path program 1 times [2022-12-13 21:07:08,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:07:08,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469124645] [2022-12-13 21:07:08,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:07:08,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:07:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:09,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:07:09,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:09,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-12-13 21:07:09,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:09,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-12-13 21:07:09,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:09,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:07:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:09,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:07:09,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:09,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 21:07:09,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:09,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:07:09,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:09,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:07:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:09,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-12-13 21:07:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:09,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-12-13 21:07:09,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:09,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-12-13 21:07:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:09,447 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 21:07:09,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:07:09,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469124645] [2022-12-13 21:07:09,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469124645] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:07:09,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:07:09,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-13 21:07:09,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907831690] [2022-12-13 21:07:09,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:07:09,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 21:07:09,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:07:09,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 21:07:09,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2022-12-13 21:07:09,449 INFO L87 Difference]: Start difference. First operand 7987 states and 10938 transitions. Second operand has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2022-12-13 21:07:12,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:07:12,516 INFO L93 Difference]: Finished difference Result 15028 states and 21199 transitions. [2022-12-13 21:07:12,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-12-13 21:07:12,517 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) Word has length 104 [2022-12-13 21:07:12,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:07:12,532 INFO L225 Difference]: With dead ends: 15028 [2022-12-13 21:07:12,533 INFO L226 Difference]: Without dead ends: 10127 [2022-12-13 21:07:12,539 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=739, Unknown=0, NotChecked=0, Total=870 [2022-12-13 21:07:12,539 INFO L413 NwaCegarLoop]: 664 mSDtfsCounter, 577 mSDsluCounter, 5353 mSDsCounter, 0 mSdLazyCounter, 3053 mSolverCounterSat, 291 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 6017 SdHoareTripleChecker+Invalid, 3344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 291 IncrementalHoareTripleChecker+Valid, 3053 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:07:12,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 6017 Invalid, 3344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [291 Valid, 3053 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-13 21:07:12,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10127 states. [2022-12-13 21:07:13,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10127 to 7133. [2022-12-13 21:07:13,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7133 states, 5203 states have (on average 1.2588891024408995) internal successors, (6550), 5251 states have internal predecessors, (6550), 1490 states have call successors, (1490), 403 states have call predecessors, (1490), 439 states have return successors, (1669), 1502 states have call predecessors, (1669), 1484 states have call successors, (1669) [2022-12-13 21:07:13,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7133 states to 7133 states and 9709 transitions. [2022-12-13 21:07:13,093 INFO L78 Accepts]: Start accepts. Automaton has 7133 states and 9709 transitions. Word has length 104 [2022-12-13 21:07:13,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:07:13,094 INFO L495 AbstractCegarLoop]: Abstraction has 7133 states and 9709 transitions. [2022-12-13 21:07:13,094 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.333333333333333) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (11), 6 states have call predecessors, (11), 4 states have call successors, (11) [2022-12-13 21:07:13,094 INFO L276 IsEmpty]: Start isEmpty. Operand 7133 states and 9709 transitions. [2022-12-13 21:07:13,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-13 21:07:13,096 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:07:13,096 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:07:13,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-12-13 21:07:13,096 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:07:13,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:07:13,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1247847667, now seen corresponding path program 1 times [2022-12-13 21:07:13,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:07:13,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364825010] [2022-12-13 21:07:13,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:07:13,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:07:13,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:13,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:07:13,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:13,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-12-13 21:07:13,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:13,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 21:07:13,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:13,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 21:07:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:13,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-12-13 21:07:13,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:13,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-12-13 21:07:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:13,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2022-12-13 21:07:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:13,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:07:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:13,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:07:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:13,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-12-13 21:07:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:13,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-12-13 21:07:13,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:13,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-12-13 21:07:13,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:13,330 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-13 21:07:13,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:07:13,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364825010] [2022-12-13 21:07:13,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364825010] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 21:07:13,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666916807] [2022-12-13 21:07:13,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:07:13,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 21:07:13,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:07:13,331 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 21:07:13,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 21:07:13,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:13,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 1599 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 21:07:13,713 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:07:13,740 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 21:07:13,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:07:13,793 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-13 21:07:13,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666916807] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:07:13,793 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 21:07:13,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 4, 4] total 13 [2022-12-13 21:07:13,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582138285] [2022-12-13 21:07:13,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 21:07:13,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:07:13,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:07:13,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:07:13,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:07:13,796 INFO L87 Difference]: Start difference. First operand 7133 states and 9709 transitions. Second operand has 13 states, 13 states have (on average 8.538461538461538) internal successors, (111), 9 states have internal predecessors, (111), 3 states have call successors, (27), 5 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-12-13 21:07:16,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:07:19,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:07:19,588 INFO L93 Difference]: Finished difference Result 14665 states and 19980 transitions. [2022-12-13 21:07:19,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 21:07:19,589 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 8.538461538461538) internal successors, (111), 9 states have internal predecessors, (111), 3 states have call successors, (27), 5 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 111 [2022-12-13 21:07:19,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:07:19,604 INFO L225 Difference]: With dead ends: 14665 [2022-12-13 21:07:19,604 INFO L226 Difference]: Without dead ends: 7538 [2022-12-13 21:07:19,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2022-12-13 21:07:19,616 INFO L413 NwaCegarLoop]: 413 mSDtfsCounter, 250 mSDsluCounter, 2679 mSDsCounter, 0 mSdLazyCounter, 1941 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 2151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 1941 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:07:19,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 3092 Invalid, 2151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 1941 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-12-13 21:07:19,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7538 states. [2022-12-13 21:07:20,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7538 to 7268. [2022-12-13 21:07:20,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7268 states, 5338 states have (on average 1.252341701011615) internal successors, (6685), 5383 states have internal predecessors, (6685), 1490 states have call successors, (1490), 403 states have call predecessors, (1490), 439 states have return successors, (1667), 1505 states have call predecessors, (1667), 1484 states have call successors, (1667) [2022-12-13 21:07:20,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7268 states to 7268 states and 9842 transitions. [2022-12-13 21:07:20,150 INFO L78 Accepts]: Start accepts. Automaton has 7268 states and 9842 transitions. Word has length 111 [2022-12-13 21:07:20,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:07:20,150 INFO L495 AbstractCegarLoop]: Abstraction has 7268 states and 9842 transitions. [2022-12-13 21:07:20,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.538461538461538) internal successors, (111), 9 states have internal predecessors, (111), 3 states have call successors, (27), 5 states have call predecessors, (27), 3 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-12-13 21:07:20,150 INFO L276 IsEmpty]: Start isEmpty. Operand 7268 states and 9842 transitions. [2022-12-13 21:07:20,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-12-13 21:07:20,152 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:07:20,152 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:07:20,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 21:07:20,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2022-12-13 21:07:20,352 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:07:20,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:07:20,353 INFO L85 PathProgramCache]: Analyzing trace with hash 800394672, now seen corresponding path program 1 times [2022-12-13 21:07:20,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:07:20,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515618134] [2022-12-13 21:07:20,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:07:20,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:07:20,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:20,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-12-13 21:07:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:20,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-12-13 21:07:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:20,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 21:07:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:20,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-12-13 21:07:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:20,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-12-13 21:07:20,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:20,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-12-13 21:07:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:20,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:07:20,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:20,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:07:20,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:20,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-12-13 21:07:20,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:20,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:07:20,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:20,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-12-13 21:07:20,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:20,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-12-13 21:07:20,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:20,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-12-13 21:07:20,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:20,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-12-13 21:07:20,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:20,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-12-13 21:07:20,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:20,773 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 21:07:20,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:07:20,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515618134] [2022-12-13 21:07:20,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515618134] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:07:20,774 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:07:20,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-12-13 21:07:20,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473725451] [2022-12-13 21:07:20,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:07:20,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 21:07:20,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:07:20,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 21:07:20,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2022-12-13 21:07:20,775 INFO L87 Difference]: Start difference. First operand 7268 states and 9842 transitions. Second operand has 15 states, 15 states have (on average 5.933333333333334) internal successors, (89), 7 states have internal predecessors, (89), 3 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 21:07:24,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:07:24,217 INFO L93 Difference]: Finished difference Result 13334 states and 18523 transitions. [2022-12-13 21:07:24,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 21:07:24,218 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.933333333333334) internal successors, (89), 7 states have internal predecessors, (89), 3 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) Word has length 121 [2022-12-13 21:07:24,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:07:24,234 INFO L225 Difference]: With dead ends: 13334 [2022-12-13 21:07:24,234 INFO L226 Difference]: Without dead ends: 10002 [2022-12-13 21:07:24,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=516, Unknown=0, NotChecked=0, Total=600 [2022-12-13 21:07:24,241 INFO L413 NwaCegarLoop]: 634 mSDtfsCounter, 680 mSDsluCounter, 4865 mSDsCounter, 0 mSdLazyCounter, 3208 mSolverCounterSat, 477 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 5499 SdHoareTripleChecker+Invalid, 3685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 477 IncrementalHoareTripleChecker+Valid, 3208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-12-13 21:07:24,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 5499 Invalid, 3685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [477 Valid, 3208 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-12-13 21:07:24,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10002 states. [2022-12-13 21:07:24,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10002 to 7266. [2022-12-13 21:07:24,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7266 states, 5338 states have (on average 1.2497189958786061) internal successors, (6671), 5381 states have internal predecessors, (6671), 1488 states have call successors, (1488), 403 states have call predecessors, (1488), 439 states have return successors, (1665), 1505 states have call predecessors, (1665), 1482 states have call successors, (1665) [2022-12-13 21:07:24,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7266 states to 7266 states and 9824 transitions. [2022-12-13 21:07:24,814 INFO L78 Accepts]: Start accepts. Automaton has 7266 states and 9824 transitions. Word has length 121 [2022-12-13 21:07:24,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:07:24,814 INFO L495 AbstractCegarLoop]: Abstraction has 7266 states and 9824 transitions. [2022-12-13 21:07:24,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.933333333333334) internal successors, (89), 7 states have internal predecessors, (89), 3 states have call successors, (15), 7 states have call predecessors, (15), 4 states have return successors, (15), 5 states have call predecessors, (15), 3 states have call successors, (15) [2022-12-13 21:07:24,814 INFO L276 IsEmpty]: Start isEmpty. Operand 7266 states and 9824 transitions. [2022-12-13 21:07:24,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-12-13 21:07:24,815 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:07:24,815 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:07:24,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-12-13 21:07:24,815 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:07:24,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:07:24,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1117139730, now seen corresponding path program 1 times [2022-12-13 21:07:24,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:07:24,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419219747] [2022-12-13 21:07:24,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:07:24,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:07:24,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:07:24,978 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:07:25,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:07:25,141 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 21:07:25,142 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 21:07:25,142 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 21:07:25,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-12-13 21:07:25,147 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:07:25,150 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:07:25,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:07:25 BoogieIcfgContainer [2022-12-13 21:07:25,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:07:25,245 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:07:25,245 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:07:25,245 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:07:25,245 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:06:10" (3/4) ... [2022-12-13 21:07:25,248 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 21:07:25,248 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:07:25,249 INFO L158 Benchmark]: Toolchain (without parser) took 78339.16ms. Allocated memory was 138.4MB in the beginning and 1.1GB in the end (delta: 943.7MB). Free memory was 98.1MB in the beginning and 386.7MB in the end (delta: -288.5MB). Peak memory consumption was 658.3MB. Max. memory is 16.1GB. [2022-12-13 21:07:25,249 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 138.4MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:07:25,249 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1385.42ms. Allocated memory was 138.4MB in the beginning and 205.5MB in the end (delta: 67.1MB). Free memory was 98.1MB in the beginning and 152.5MB in the end (delta: -54.4MB). Peak memory consumption was 76.7MB. Max. memory is 16.1GB. [2022-12-13 21:07:25,249 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.46ms. Allocated memory is still 205.5MB. Free memory was 152.5MB in the beginning and 143.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 21:07:25,250 INFO L158 Benchmark]: Boogie Preprocessor took 71.62ms. Allocated memory is still 205.5MB. Free memory was 143.1MB in the beginning and 133.7MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 21:07:25,250 INFO L158 Benchmark]: RCFGBuilder took 2494.74ms. Allocated memory is still 205.5MB. Free memory was 133.7MB in the beginning and 126.8MB in the end (delta: 6.9MB). Peak memory consumption was 74.0MB. Max. memory is 16.1GB. [2022-12-13 21:07:25,250 INFO L158 Benchmark]: TraceAbstraction took 74302.31ms. Allocated memory was 205.5MB in the beginning and 1.1GB in the end (delta: 876.6MB). Free memory was 125.7MB in the beginning and 386.7MB in the end (delta: -260.9MB). Peak memory consumption was 616.7MB. Max. memory is 16.1GB. [2022-12-13 21:07:25,250 INFO L158 Benchmark]: Witness Printer took 3.51ms. Allocated memory is still 1.1GB. Free memory is still 386.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:07:25,252 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 138.4MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1385.42ms. Allocated memory was 138.4MB in the beginning and 205.5MB in the end (delta: 67.1MB). Free memory was 98.1MB in the beginning and 152.5MB in the end (delta: -54.4MB). Peak memory consumption was 76.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.46ms. Allocated memory is still 205.5MB. Free memory was 152.5MB in the beginning and 143.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.62ms. Allocated memory is still 205.5MB. Free memory was 143.1MB in the beginning and 133.7MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 2494.74ms. Allocated memory is still 205.5MB. Free memory was 133.7MB in the beginning and 126.8MB in the end (delta: 6.9MB). Peak memory consumption was 74.0MB. Max. memory is 16.1GB. * TraceAbstraction took 74302.31ms. Allocated memory was 205.5MB in the beginning and 1.1GB in the end (delta: 876.6MB). Free memory was 125.7MB in the beginning and 386.7MB in the end (delta: -260.9MB). Peak memory consumption was 616.7MB. Max. memory is 16.1GB. * Witness Printer took 3.51ms. Allocated memory is still 1.1GB. Free memory is still 386.7MB. There was no memory consumed. Max. memory is 16.1GB. * 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 - UnprovableResult [Line: 6754]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 6104. Possible FailurePath: [L5149] static struct lock_class_key __key___7 ; [L5150] static struct lock_class_key __key___8 ; [L5290-L5303] static char const __mod_author31[46] __attribute__((__used__, __unused__, __section__(".modinfo"), __aligned__(1))) = { (char const )'a', (char const )'u', (char const )'t', (char const )'h', (char const )'o', (char const )'r', (char const )'=', (char const )'S', (char const )'e', (char const )'b', (char const )'a', (char const )'s', (char const )'t', (char const )'i', (char const )'a', (char const )'n', (char const )' ', (char const )'H', (char const )'a', (char const )'a', (char const )'s', (char const )' ', (char const )'<', (char const )'h', (char const )'a', (char const )'a', (char const )'s', (char const )'@', (char const )'e', (char const )'m', (char const )'s', (char const )'-', (char const )'w', (char const )'u', (char const )'e', (char const )'n', (char const )'s', (char const )'c', (char const )'h', (char const )'e', (char const )'.', (char const )'c', (char const )'o', (char const )'m', (char const )'>', (char const )'\000'}; [L5304-L5323] static char const __mod_description32[70] __attribute__((__used__, __unused__, __section__(".modinfo"), __aligned__(1))) = { (char const )'d', (char const )'e', (char const )'s', (char const )'c', (char const )'r', (char const )'i', (char const )'p', (char const )'t', (char const )'i', (char const )'o', (char const )'n', (char const )'=', (char const )'C', (char const )'A', (char const )'N', (char const )' ', (char const )'d', (char const )'r', (char const )'i', (char const )'v', (char const )'e', (char const )'r', (char const )' ', (char const )'f', (char const )'o', (char const )'r', (char const )' ', (char const )'E', (char const )'M', (char const )'S', (char const )' ', (char const )'D', (char const )'r', (char const )'.', (char const )' ', (char const )'T', (char const )'h', (char const )'o', (char const )'m', (char const )'a', (char const )'s', (char const )' ', (char const )'W', (char const )'u', (char const )'e', (char const )'n', (char const )'s', (char const )'c', (char const )'h', (char const )'e', (char const )' ', (char const )'C', (char const )'A', (char const )'N', (char const )'/', (char const )'U', (char const )'S', (char const )'B', (char const )' ', (char const )'i', (char const )'n', (char const )'t', (char const )'e', (char const )'r', (char const )'f', (char const )'a', (char const )'c', (char const )'e', (char const )'s', (char const )'\000'}; [L5324-L5329] static char const __mod_license33[15] __attribute__((__used__, __unused__, __section__(".modinfo"), __aligned__(1))) = { (char const )'l', (char const )'i', (char const )'c', (char const )'e', (char const )'n', (char const )'s', (char const )'e', (char const )'=', (char const )'G', (char const )'P', (char const )'L', (char const )' ', (char const )'v', (char const )'2', (char const )'\000'}; [L5330-L5332] static struct usb_device_id ems_usb_table[1] = { {(__u16 )3, (__u16 )4822, (__u16 )1092, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}}; [L6247-L6287] static struct net_device_ops const ems_usb_netdev_ops = {(int (*)(struct net_device *dev ))0, (void (*)(struct net_device *dev ))0, & ems_usb_open, & ems_usb_close, & ems_usb_start_xmit, (u16 (*)(struct net_device *dev , struct sk_buff *skb ))0, (void (*)(struct net_device *dev , int flags ))0, (void (*)(struct net_device *dev ))0, (void (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , void *addr ))0, (int (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , struct ifreq *ifr , int cmd ))0, (int (*)(struct net_device *dev , struct ifmap *map ))0, (int (*)(struct net_device *dev , int new_mtu ))0, (int (*)(struct net_device *dev , struct neigh_parms * ))0, (void (*)(struct net_device *dev ))0, (struct rtnl_link_stats64 *(*)(struct net_device *dev , struct rtnl_link_stats64 *storage ))0, (struct net_device_stats *(*)(struct net_device *dev ))0, (void (*)(struct net_device *dev , struct vlan_group *grp ))0, (void (*)(struct net_device *dev , unsigned short vid ))0, (void (*)(struct net_device *dev , unsigned short vid ))0, (void (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , struct netpoll_info *info ))0, (void (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , int queue , u8 *mac ))0, (int (*)(struct net_device *dev , int queue , u16 vlan , u8 qos ))0, (int (*)(struct net_device *dev , int vf , int rate ))0, (int (*)(struct net_device *dev , int vf , struct ifla_vf_info *ivf ))0, (int (*)(struct net_device *dev , int vf , struct nlattr **port ))0, (int (*)(struct net_device *dev , int vf , struct sk_buff *skb ))0, (int (*)(struct net_device *dev , u8 tc ))0, (int (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , u16 xid , struct scatterlist *sgl , unsigned int sgc ))0, (int (*)(struct net_device *dev , u16 xid ))0, (int (*)(struct net_device *dev , u16 xid , struct scatterlist *sgl , unsigned int sgc ))0, (int (*)(struct net_device *dev , u64 *wwn , int type ))0, (int (*)(struct net_device *dev , struct sk_buff const *skb , u16 rxq_index , u32 flow_id ))0, (int (*)(struct net_device *dev , struct net_device *slave_dev ))0, (int (*)(struct net_device *dev , struct net_device *slave_dev ))0, (u32 (*)(struct net_device *dev , u32 features ))0, (int (*)(struct net_device *dev , u32 features ))0}; [L6288-L6292] static struct can_bittiming_const ems_usb_bittiming_const = {{(char )'e', (char )'m', (char )'s', (char )'_', (char )'u', (char )'s', (char )'b', (char )'\000', (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0}, (__u32 )1, (__u32 )16, (__u32 )1, (__u32 )8, (__u32 )4, (__u32 )1, (__u32 )64, (__u32 )1}; [L6543-L6561] static struct usb_driver ems_usb_driver = {"ems_usb", & ems_usb_probe, & ems_usb_disconnect, (int (*)(struct usb_interface *intf , unsigned int code , void *buf ))0, (int (*)(struct usb_interface *intf , pm_message_t message ))0, (int (*)(struct usb_interface *intf ))0, (int (*)(struct usb_interface *intf ))0, (int (*)(struct usb_interface *intf ))0, (int (*)(struct usb_interface *intf ))0, (struct usb_device_id const *)(ems_usb_table), {{{{{0U}, 0U, 0U, (void *)0, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, (char const *)0, 0, 0UL}}}}, {(struct list_head *)0, (struct list_head *)0}}, {{(char const *)0, (struct bus_type *)0, (struct module *)0, (char const *)0, (_Bool)0, (struct of_device_id const *)0, (int (*)(struct device *dev ))0, (int (*)(struct device *dev ))0, (void (*)(struct device *dev ))0, (int (*)(struct device *dev , pm_message_t state ))0, (int (*)(struct device *dev ))0, (struct attribute_group const **)0, (struct dev_pm_ops const *)0, (struct driver_private *)0}, 0}, 0U, 0U, 0U}; [L6614] int LDV_IN_INTERRUPT ; [L6615] static int res_ems_usb_open_10 ; [L6616] static int res_ems_usb_close_12 ; [L6617] static int res_ems_usb_probe_16 ; [L6767] int ldv_urb_state = 0; [L6768] int ldv_coherent_state = 0; VAL [__key___7={36:0}, __key___8={37:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6619] struct net_device *var_group1 ; [L6620] struct sk_buff *var_group2 ; [L6621] struct usb_interface *var_group3 ; [L6622] struct usb_device_id const *var_ems_usb_probe_16_p1 ; [L6623] int tmp___7 ; [L6624] int ldv_s_ems_usb_netdev_ops_net_device_ops ; [L6625] int ldv_s_ems_usb_driver_usb_driver ; [L6626] int tmp___8 ; [L6627] int tmp___9 ; [L6630] LDV_IN_INTERRUPT = 1 [L6631] FCALL ldv_initialize() [L6632] CALL, EXPR ems_usb_init() VAL [__key___7={36:0}, __key___8={37:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6565] int err ; [L6569] CALL, EXPR usb_register(& ems_usb_driver) [L5140] int tmp___7 ; [L5143] CALL, EXPR usb_register_driver(driver, & __this_module, "ems_usb") [L7025] return __VERIFIER_nondet_int(); [L5143] RET, EXPR usb_register_driver(driver, & __this_module, "ems_usb") [L5143] tmp___7 = usb_register_driver(driver, & __this_module, "ems_usb") [L5145] return (tmp___7); VAL [\result=0, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, driver={41:0}, driver={41:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0] [L6569] RET, EXPR usb_register(& ems_usb_driver) [L6569] err = usb_register(& ems_usb_driver) [L6571] COND FALSE !(\read(err)) [L6578] return (0); VAL [\result=0, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, err=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6632] RET, EXPR ems_usb_init() VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_init()=0, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6632] tmp___7 = ems_usb_init() [L6634] COND FALSE !(\read(tmp___7)) [L6638] ldv_s_ems_usb_netdev_ops_net_device_ops = 0 [L6639] ldv_s_ems_usb_driver_usb_driver = 0 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0] [L6641] COND TRUE 1 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0] [L6644] tmp___9 = __VERIFIER_nondet_int() [L6646] COND TRUE \read(tmp___9) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___9=1] [L6655] tmp___8 = __VERIFIER_nondet_int() [L6657] COND FALSE !(tmp___8 == 0) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=1] [L6660] COND FALSE !(tmp___8 == 1) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=1] [L6663] COND TRUE tmp___8 == 2 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=1] [L6704] CALL ems_usb_start_xmit(var_group2, var_group1) [L6048] struct ems_usb *dev ; [L6049] void *tmp___7 ; [L6050] struct ems_tx_urb_context *context ; [L6051] struct net_device_stats *stats ; [L6052] struct can_frame *cf ; [L6053] struct ems_cpc_msg *msg ; [L6054] struct urb *urb ; [L6055] u8 *buf ; [L6056] int i ; [L6057] int err ; [L6058] size_t size ; [L6059] int tmp___8 ; [L6060] void *tmp___9 ; [L6061] unsigned int tmp___10 ; [L6062] int tmp___11 ; [L6063] long tmp___12 ; VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={18446744073709551622:0}, skb={18446744073709551622:0}] [L6066] CALL, EXPR netdev_priv((struct net_device const *)netdev) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, dev={0:-519}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L4976] return ((void *)((char *)dev + ((sizeof(struct net_device ) + 31UL) & 0x0fffffffffffffe0UL))); VAL [\result={0:-520}, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, dev={0:-519}, dev={0:-519}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6066] RET, EXPR netdev_priv((struct net_device const *)netdev) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, netdev={0:-519}, netdev={0:-519}, netdev_priv((struct net_device const *)netdev)={0:-520}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={18446744073709551622:0}, skb={18446744073709551622:0}] [L6066] tmp___7 = netdev_priv((struct net_device const *)netdev) [L6067] dev = (struct ems_usb *)tmp___7 [L6068] context = (struct ems_tx_urb_context *)((void *)0) [L6069] stats = & netdev->stats [L6070] EXPR skb->data [L6070] cf = (struct can_frame *)skb->data [L6071] size = 15UL + sizeof(struct cpc_can_msg ) [L6072] CALL, EXPR can_dropped_invalid_skb(netdev, skb) [L5252] struct can_frame const *cf ; [L5253] int tmp___7 ; [L5254] long tmp___8 ; [L5256] EXPR skb->data [L5256] cf = (struct can_frame const *)((struct can_frame *)skb->data) [L5257] EXPR skb->len VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, cf={-18446744073709551617:19}, dev={0:-519}, dev={0:-519}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={18446744073709551622:0}, skb={18446744073709551622:0}, skb->len=4294967309] [L5257] COND FALSE !((unsigned long )skb->len != sizeof(*cf)) [L5260] EXPR cf->can_dlc VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, cf={-18446744073709551617:19}, cf->can_dlc=1, dev={0:-519}, dev={0:-519}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={18446744073709551622:0}, skb={18446744073709551622:0}] [L5260] COND FALSE !((int const )cf->can_dlc > 8) [L5263] tmp___7 = 0 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, cf={-18446744073709551617:19}, dev={0:-519}, dev={0:-519}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={18446744073709551622:0}, skb={18446744073709551622:0}, tmp___7=0] [L5266] tmp___8 = __builtin_expect((long )tmp___7, 0L) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, cf={-18446744073709551617:19}, dev={0:-519}, dev={0:-519}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={18446744073709551622:0}, skb={18446744073709551622:0}, tmp___7=0, tmp___8=0] [L5268] COND FALSE !(\read(tmp___8)) [L5276] return (0); VAL [\result=0, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, cf={-18446744073709551617:19}, dev={0:-519}, dev={0:-519}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={18446744073709551622:0}, skb={18446744073709551622:0}, tmp___7=0, tmp___8=0] [L6072] RET, EXPR can_dropped_invalid_skb(netdev, skb) [L6072] tmp___8 = can_dropped_invalid_skb(netdev, skb) [L6074] COND FALSE !(\read(tmp___8)) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, cf={-18446744073709551617:19}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0] [L6079] CALL, EXPR usb_alloc_urb(0, 32U) VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=32, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6830] void *arbitrary_memory ; [L6831] void *tmp___7 ; VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=32, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6834] COND TRUE 1 VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=32, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6837] CALL, EXPR ldv_undefined_pointer() VAL [\old(ldv_urb_state)=0, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6982] CALL, EXPR ldv_malloc(0UL) VAL [\old(ldv_urb_state)=0, \old(size)=0, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6911] COND FALSE !(__VERIFIER_nondet_bool()) [L6912] return malloc(size); [L6982] RET, EXPR ldv_malloc(0UL) VAL [\old(ldv_urb_state)=0, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_malloc(0UL)={-3:0}, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6982] return ldv_malloc(0UL); [L6837] RET, EXPR ldv_undefined_pointer() VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=32, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_undefined_pointer()={-3:0}, ldv_urb_state=0, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6837] tmp___7 = ldv_undefined_pointer() [L6838] arbitrary_memory = tmp___7 VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=32, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, arbitrary_memory={-3:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7={-3:0}] [L6840] COND FALSE !(! arbitrary_memory) [L6844] ldv_urb_state = ldv_urb_state + 1 [L6845] return ((struct urb *)arbitrary_memory); VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=32, \result={-3:0}, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, arbitrary_memory={-3:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7={-3:0}] [L6079] RET, EXPR usb_alloc_urb(0, 32U) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, cf={-18446744073709551617:19}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, usb_alloc_urb(0, 32U)={-3:0}] [L6079] urb = usb_alloc_urb(0, 32U) [L6081] COND FALSE !(! urb) [L6089] EXPR dev->udev VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, cf={-18446744073709551617:19}, context={0:0}, dev={0:-520}, dev->udev={18446744073709551625:18446744073709551627}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, urb={-3:0}] [L6089] CALL, EXPR usb_alloc_coherent(dev->udev, size, 32U, & urb->transfer_dma) VAL [\old(ldv_coherent_state)=0, \old(mem_flags)=32, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, dev={18446744073709551625:18446744073709551627}, dma={-3:104}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6773] void *arbitrary_memory ; [L6774] void *tmp___7 ; VAL [\old(ldv_coherent_state)=0, \old(mem_flags)=32, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, dev={18446744073709551625:18446744073709551627}, dev={18446744073709551625:18446744073709551627}, dma={-3:104}, dma={-3:104}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6777] COND TRUE 1 VAL [\old(ldv_coherent_state)=0, \old(mem_flags)=32, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, dev={18446744073709551625:18446744073709551627}, dev={18446744073709551625:18446744073709551627}, dma={-3:104}, dma={-3:104}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6780] CALL, EXPR ldv_undefined_pointer() VAL [\old(ldv_coherent_state)=0, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6982] CALL, EXPR ldv_malloc(0UL) VAL [\old(ldv_coherent_state)=0, \old(size)=0, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6911] COND FALSE !(__VERIFIER_nondet_bool()) [L6912] return malloc(size); [L6982] RET, EXPR ldv_malloc(0UL) VAL [\old(ldv_coherent_state)=0, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_malloc(0UL)={-18446744073709551617:0}, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6982] return ldv_malloc(0UL); [L6780] RET, EXPR ldv_undefined_pointer() VAL [\old(ldv_coherent_state)=0, \old(mem_flags)=32, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, dev={18446744073709551625:18446744073709551627}, dev={18446744073709551625:18446744073709551627}, dma={-3:104}, dma={-3:104}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_undefined_pointer()={-18446744073709551617:0}, ldv_urb_state=1, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6780] tmp___7 = ldv_undefined_pointer() [L6781] arbitrary_memory = tmp___7 VAL [\old(ldv_coherent_state)=0, \old(mem_flags)=32, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, arbitrary_memory={-18446744073709551617:0}, dev={18446744073709551625:18446744073709551627}, dev={18446744073709551625:18446744073709551627}, dma={-3:104}, dma={-3:104}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, tmp___7={-18446744073709551617:0}] [L6783] COND FALSE !(! arbitrary_memory) [L6787] ldv_coherent_state = ldv_coherent_state + 1 [L6788] return (arbitrary_memory); VAL [\old(ldv_coherent_state)=0, \old(mem_flags)=32, \old(size)=28, \result={-18446744073709551617:0}, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, arbitrary_memory={-18446744073709551617:0}, dev={18446744073709551625:18446744073709551627}, dev={18446744073709551625:18446744073709551627}, dma={-3:104}, dma={-3:104}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, tmp___7={-18446744073709551617:0}] [L6089] RET, EXPR usb_alloc_coherent(dev->udev, size, 32U, & urb->transfer_dma) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, cf={-18446744073709551617:19}, context={0:0}, dev={0:-520}, dev->udev={18446744073709551625:18446744073709551627}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, urb={-3:0}, usb_alloc_coherent(dev->udev, size, 32U, & urb->transfer_dma)={-18446744073709551617:0}] [L6089] tmp___9 = usb_alloc_coherent(dev->udev, size, 32U, & urb->transfer_dma) [L6090] buf = (u8 *)tmp___9 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:19}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6092] COND FALSE !(! buf) [L6100] msg = (struct ems_cpc_msg *)(buf + 4) [L6101] EXPR cf->can_id [L6101] msg->msg.can_msg.id = cf->can_id & 536870911U [L6102] EXPR cf->can_dlc [L6102] msg->msg.can_msg.length = cf->can_dlc [L6103] EXPR cf->can_id VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:19}, cf->can_id=1, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6103] COND TRUE cf->can_id & 1073741824U [L6104] EXPR cf->can_id VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:19}, cf->can_id=1, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6104] COND TRUE cf->can_id & 2147483648U [L6105] msg->type = (u8 )16 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:19}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6109] msg->length = (u8 )5 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:19}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6132] EXPR msg->msg.can_msg.id [L6132] msg->msg.can_msg.id = msg->msg.can_msg.id [L6133] i = 0 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:19}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6135] COND TRUE 1 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:19}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6137] COND TRUE i < 10 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:19}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6141] EXPR dev->tx_contexts[i].echo_index VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:19}, context={0:0}, dev={0:-520}, dev->tx_contexts[i].echo_index=4294967306, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6141] COND TRUE dev->tx_contexts[i].echo_index == 10U [L6142] context = & dev->tx_contexts[i] VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:19}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6151] COND TRUE ! context VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:19}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6153] FCALL usb_unanchor_urb(urb) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:19}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6154] EXPR dev->udev [L6154] EXPR urb->transfer_dma VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:19}, context={0:0}, dev={0:-520}, dev->udev={18446744073709551625:18446744073709551627}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}, urb->transfer_dma=18446744073709551626] [L6154] CALL usb_free_coherent(dev->udev, size, (void *)buf, urb->transfer_dma) VAL [\old(dma)=10, \old(ldv_coherent_state)=1, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, addr={-18446744073709551617:0}, dev={18446744073709551625:18446744073709551627}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6802] COND TRUE 1 VAL [\old(dma)=10, \old(ldv_coherent_state)=1, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, addr={-18446744073709551617:0}, addr={-18446744073709551617:0}, dev={18446744073709551625:18446744073709551627}, dev={18446744073709551625:18446744073709551627}, dma=10, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6804] COND FALSE !(! ((unsigned long )addr != (unsigned long )((void *)0))) VAL [\old(dma)=10, \old(ldv_coherent_state)=1, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, addr={-18446744073709551617:0}, addr={-18446744073709551617:0}, dev={18446744073709551625:18446744073709551627}, dev={18446744073709551625:18446744073709551627}, dma=10, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6810] COND TRUE \read(*addr) VAL [\old(dma)=10, \old(ldv_coherent_state)=1, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, addr={-18446744073709551617:0}, addr={-18446744073709551617:0}, dev={18446744073709551625:18446744073709551627}, dev={18446744073709551625:18446744073709551627}, dma=10, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6811] COND TRUE ldv_coherent_state >= 1 VAL [\old(dma)=10, \old(ldv_coherent_state)=1, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, addr={-18446744073709551617:0}, addr={-18446744073709551617:0}, dev={18446744073709551625:18446744073709551627}, dev={18446744073709551625:18446744073709551627}, dma=10, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6817] ldv_coherent_state = ldv_coherent_state - 1 VAL [\old(dma)=10, \old(ldv_coherent_state)=1, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, addr={-18446744073709551617:0}, addr={-18446744073709551617:0}, dev={18446744073709551625:18446744073709551627}, dev={18446744073709551625:18446744073709551627}, dma=10, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6154] RET usb_free_coherent(dev->udev, size, (void *)buf, urb->transfer_dma) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:19}, context={0:0}, dev={0:-520}, dev->udev={18446744073709551625:18446744073709551627}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}, urb->transfer_dma=18446744073709551626] [L6155] netdev->dev.parent [L6157] return ((netdev_tx_t )16); VAL [\result=16, __key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, buf={-18446744073709551617:0}, cf={-18446744073709551617:19}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={-18446744073709551617:4}, netdev={0:-519}, netdev={0:-519}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={18446744073709551622:0}, skb={18446744073709551622:0}, stats={0:-331}, tmp___7={0:-520}, tmp___8=0, tmp___9={-18446744073709551617:0}, urb={-3:0}] [L6704] RET ems_usb_start_xmit(var_group2, var_group1) [L6641] COND TRUE 1 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=1, var_group1={0:-519}, var_group2={18446744073709551622:0}] [L6644] tmp___9 = __VERIFIER_nondet_int() [L6646] COND FALSE !(\read(tmp___9)) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=0, var_group1={0:-519}, var_group2={18446744073709551622:0}] [L6648] COND FALSE !(! (ldv_s_ems_usb_netdev_ops_net_device_ops == 0)) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=0, var_group1={0:-519}, var_group2={18446744073709551622:0}] [L6650] COND FALSE !(! (ldv_s_ems_usb_driver_usb_driver == 0)) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=0, var_group1={0:-519}, var_group2={18446744073709551622:0}] [L6742] CALL ems_usb_exit() VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6587] FCALL usb_deregister(& ems_usb_driver) [L6742] RET ems_usb_exit() VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=0, var_group1={0:-519}, var_group2={18446744073709551622:0}] [L6746] CALL ldv_check_final_state() [L6889] COND FALSE !(ldv_urb_state == 0) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6892] CALL ldv_blast_assert() VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6754] reach_error() VAL [__key___7={36:0}, __key___8={37:0}, __this_module={18446744073709551620:18446744073709551623}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 432 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 74.1s, OverallIterations: 26, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 57.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17606 SdHoareTripleChecker+Valid, 45.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16340 mSDsluCounter, 87227 SdHoareTripleChecker+Invalid, 41.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 71605 mSDsCounter, 7881 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44026 IncrementalHoareTripleChecker+Invalid, 51907 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7881 mSolverCounterUnsat, 15622 mSDtfsCounter, 44026 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1287 GetRequests, 976 SyntacticMatches, 1 SemanticMatches, 310 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 640 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8158occurred in iteration=21, InterpolantAutomatonStates: 264, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.5s AutomataMinimizationTime, 25 MinimizatonAttempts, 27213 StatesRemovedByMinimization, 25 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 7.1s InterpolantComputationTime, 2500 NumberOfCodeBlocks, 2500 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 2569 ConstructedInterpolants, 0 QuantifiedInterpolants, 5027 SizeOfPredicates, 3 NumberOfNonLiveVariables, 4547 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 30 InterpolantComputations, 23 PerfectInterpolantSequences, 242/265 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 could not prove your program: unable to determine feasibility of some traces [2022-12-13 21:07:25,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8 --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 01d4ebb86f2bde0df0d47bbd5d9b632b620f2501e68770553e85fb2bb5a7d15a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 21:07:26,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:07:26,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:07:26,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:07:26,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:07:26,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:07:26,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:07:26,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:07:26,995 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:07:26,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:07:26,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:07:26,998 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:07:26,999 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:07:27,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:07:27,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:07:27,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:07:27,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:07:27,004 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:07:27,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:07:27,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:07:27,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:07:27,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:07:27,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:07:27,012 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:07:27,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:07:27,016 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:07:27,016 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:07:27,017 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:07:27,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:07:27,019 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:07:27,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:07:27,020 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:07:27,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:07:27,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:07:27,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:07:27,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:07:27,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:07:27,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:07:27,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:07:27,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:07:27,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:07:27,026 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-12-13 21:07:27,048 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:07:27,048 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:07:27,048 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:07:27,048 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:07:27,049 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:07:27,049 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:07:27,050 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:07:27,050 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:07:27,050 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:07:27,051 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:07:27,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:07:27,051 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:07:27,051 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:07:27,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:07:27,051 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 21:07:27,052 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 21:07:27,052 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 21:07:27,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:07:27,052 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:07:27,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:07:27,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:07:27,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:07:27,053 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:07:27,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:07:27,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:07:27,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:07:27,054 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:07:27,054 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 21:07:27,054 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 21:07:27,054 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:07:27,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:07:27,054 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:07:27,054 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:07:27,055 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 21:07:27,055 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:07:27,055 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_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01d4ebb86f2bde0df0d47bbd5d9b632b620f2501e68770553e85fb2bb5a7d15a [2022-12-13 21:07:27,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:07:27,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:07:27,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:07:27,314 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:07:27,315 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:07:27,316 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2022-12-13 21:07:29,925 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:07:30,258 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:07:30,258 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2022-12-13 21:07:30,278 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/data/3c120c4ea/922032feda164c8e88cfa3a8f683cff8/FLAGd01804794 [2022-12-13 21:07:30,484 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/data/3c120c4ea/922032feda164c8e88cfa3a8f683cff8 [2022-12-13 21:07:30,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:07:30,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:07:30,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:07:30,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:07:30,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:07:30,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:07:30" (1/1) ... [2022-12-13 21:07:30,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e5edf3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:30, skipping insertion in model container [2022-12-13 21:07:30,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:07:30" (1/1) ... [2022-12-13 21:07:30,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:07:30,576 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:07:30,919 WARN L623 FunctionHandler]: Unknown extern function __kmalloc [2022-12-13 21:07:30,992 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-13 21:07:30,993 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-13 21:07:31,003 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-13 21:07:31,004 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:07:31,034 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-13 21:07:31,038 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-13 21:07:31,050 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-13 21:07:31,058 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-13 21:07:31,060 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 21:07:31,111 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 21:07:31,151 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 21:07:31,151 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 21:07:31,152 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:07:31,152 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,156 WARN L623 FunctionHandler]: Unknown extern function alloc_can_skb [2022-12-13 21:07:31,159 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-13 21:07:31,163 WARN L623 FunctionHandler]: Unknown extern function alloc_can_err_skb [2022-12-13 21:07:31,165 WARN L623 FunctionHandler]: Unknown extern function can_bus_off [2022-12-13 21:07:31,171 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-13 21:07:31,176 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 21:07:31,179 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,181 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 21:07:31,182 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:07:31,182 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,187 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 21:07:31,188 WARN L623 FunctionHandler]: Unknown extern function can_get_echo_skb [2022-12-13 21:07:31,195 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 21:07:31,208 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,209 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,210 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-13 21:07:31,210 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 21:07:31,211 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:07:31,211 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-13 21:07:31,212 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,212 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,213 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 21:07:31,213 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:07:31,214 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,215 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:07:31,215 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,219 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-12-13 21:07:31,219 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-12-13 21:07:31,219 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-12-13 21:07:31,223 WARN L623 FunctionHandler]: Unknown extern function open_candev [2022-12-13 21:07:31,224 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:07:31,224 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,224 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-12-13 21:07:31,229 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,229 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,232 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-13 21:07:31,233 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,234 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-13 21:07:31,234 WARN L623 FunctionHandler]: Unknown extern function can_put_echo_skb [2022-12-13 21:07:31,234 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 21:07:31,235 WARN L623 FunctionHandler]: Unknown extern function can_free_echo_skb [2022-12-13 21:07:31,235 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-13 21:07:31,235 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-13 21:07:31,235 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:07:31,236 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,237 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-13 21:07:31,240 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,241 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-12-13 21:07:31,246 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,251 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 21:07:31,259 WARN L623 FunctionHandler]: Unknown extern function alloc_candev [2022-12-13 21:07:31,260 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,262 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,262 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,263 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,263 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,264 WARN L623 FunctionHandler]: Unknown extern function register_candev [2022-12-13 21:07:31,264 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,264 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 21:07:31,265 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 21:07:31,265 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-12-13 21:07:31,268 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-13 21:07:31,269 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-12-13 21:07:31,269 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 21:07:31,273 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:07:31,274 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:07:31,277 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-13 21:07:31,291 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-13 21:07:31,292 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-13 21:07:31,292 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-13 21:07:31,293 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-13 21:07:31,297 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_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i[191320,191333] [2022-12-13 21:07:31,305 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-12-13 21:07:31,307 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-12-13 21:07:31,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:07:31,351 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-13 21:07:31,379 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:07:31,464 WARN L623 FunctionHandler]: Unknown extern function __kmalloc [2022-12-13 21:07:31,467 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-13 21:07:31,467 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-13 21:07:31,468 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-13 21:07:31,468 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:07:31,470 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-13 21:07:31,470 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-13 21:07:31,471 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-13 21:07:31,472 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-13 21:07:31,472 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 21:07:31,475 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 21:07:31,479 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 21:07:31,479 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 21:07:31,480 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:07:31,480 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,481 WARN L623 FunctionHandler]: Unknown extern function alloc_can_skb [2022-12-13 21:07:31,482 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-13 21:07:31,483 WARN L623 FunctionHandler]: Unknown extern function alloc_can_err_skb [2022-12-13 21:07:31,484 WARN L623 FunctionHandler]: Unknown extern function can_bus_off [2022-12-13 21:07:31,487 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-13 21:07:31,489 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 21:07:31,491 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,492 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 21:07:31,492 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:07:31,492 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,493 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 21:07:31,494 WARN L623 FunctionHandler]: Unknown extern function can_get_echo_skb [2022-12-13 21:07:31,495 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 21:07:31,498 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,498 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,499 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-13 21:07:31,499 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 21:07:31,500 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:07:31,500 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-13 21:07:31,500 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,501 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,501 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 21:07:31,501 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:07:31,502 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,503 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:07:31,503 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,504 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-12-13 21:07:31,504 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-12-13 21:07:31,504 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-12-13 21:07:31,505 WARN L623 FunctionHandler]: Unknown extern function open_candev [2022-12-13 21:07:31,505 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:07:31,506 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,506 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-12-13 21:07:31,507 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,508 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,510 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-13 21:07:31,510 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,511 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-13 21:07:31,511 WARN L623 FunctionHandler]: Unknown extern function can_put_echo_skb [2022-12-13 21:07:31,511 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 21:07:31,512 WARN L623 FunctionHandler]: Unknown extern function can_free_echo_skb [2022-12-13 21:07:31,512 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-13 21:07:31,512 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-13 21:07:31,512 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:07:31,513 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,513 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-13 21:07:31,514 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,514 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-12-13 21:07:31,517 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,518 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 21:07:31,520 WARN L623 FunctionHandler]: Unknown extern function alloc_candev [2022-12-13 21:07:31,520 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,522 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,522 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,523 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,523 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,524 WARN L623 FunctionHandler]: Unknown extern function register_candev [2022-12-13 21:07:31,524 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,524 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 21:07:31,525 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 21:07:31,525 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-12-13 21:07:31,526 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-13 21:07:31,526 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-12-13 21:07:31,526 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 21:07:31,536 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:07:31,537 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:07:31,538 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-13 21:07:31,539 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-13 21:07:31,540 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-13 21:07:31,540 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-13 21:07:31,541 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-13 21:07:31,541 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_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i[191320,191333] [2022-12-13 21:07:31,542 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-12-13 21:07:31,543 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-12-13 21:07:31,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:07:31,556 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:07:31,656 WARN L623 FunctionHandler]: Unknown extern function __kmalloc [2022-12-13 21:07:31,659 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-13 21:07:31,660 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-13 21:07:31,661 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-13 21:07:31,661 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:07:31,663 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-13 21:07:31,663 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-13 21:07:31,667 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-13 21:07:31,668 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-13 21:07:31,669 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-13 21:07:31,675 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-13 21:07:31,686 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 21:07:31,688 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 21:07:31,688 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:07:31,688 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,695 WARN L623 FunctionHandler]: Unknown extern function alloc_can_skb [2022-12-13 21:07:31,698 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-13 21:07:31,699 WARN L623 FunctionHandler]: Unknown extern function alloc_can_err_skb [2022-12-13 21:07:31,700 WARN L623 FunctionHandler]: Unknown extern function can_bus_off [2022-12-13 21:07:31,704 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-13 21:07:31,706 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 21:07:31,710 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,712 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 21:07:31,713 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:07:31,713 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,721 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 21:07:31,723 WARN L623 FunctionHandler]: Unknown extern function can_get_echo_skb [2022-12-13 21:07:31,724 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-13 21:07:31,728 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,730 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,732 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-13 21:07:31,732 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 21:07:31,733 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:07:31,733 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-13 21:07:31,734 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,735 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,737 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 21:07:31,738 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:07:31,738 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,740 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:07:31,740 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,742 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-12-13 21:07:31,743 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-12-13 21:07:31,743 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-12-13 21:07:31,744 WARN L623 FunctionHandler]: Unknown extern function open_candev [2022-12-13 21:07:31,745 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:07:31,745 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,747 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-12-13 21:07:31,748 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,750 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,753 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-13 21:07:31,754 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,759 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-13 21:07:31,759 WARN L623 FunctionHandler]: Unknown extern function can_put_echo_skb [2022-12-13 21:07:31,759 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-13 21:07:31,760 WARN L623 FunctionHandler]: Unknown extern function can_free_echo_skb [2022-12-13 21:07:31,760 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-13 21:07:31,760 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-13 21:07:31,761 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-13 21:07:31,761 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,762 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-13 21:07:31,763 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,764 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-12-13 21:07:31,767 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-13 21:07:31,774 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-13 21:07:31,777 WARN L623 FunctionHandler]: Unknown extern function alloc_candev [2022-12-13 21:07:31,777 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,779 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,780 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,780 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,782 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,784 WARN L623 FunctionHandler]: Unknown extern function register_candev [2022-12-13 21:07:31,784 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-13 21:07:31,785 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 21:07:31,786 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 21:07:31,786 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-12-13 21:07:31,787 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-13 21:07:31,787 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-12-13 21:07:31,787 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-13 21:07:31,790 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:07:31,790 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-13 21:07:31,791 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-13 21:07:31,792 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-13 21:07:31,792 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-13 21:07:31,793 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-13 21:07:31,793 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-13 21:07:31,794 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_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i[191320,191333] [2022-12-13 21:07:31,795 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-12-13 21:07:31,796 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-12-13 21:07:31,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:07:31,981 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:07:31,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:31 WrapperNode [2022-12-13 21:07:31,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:07:31,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:07:31,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:07:31,983 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:07:31,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:31" (1/1) ... [2022-12-13 21:07:32,025 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:31" (1/1) ... [2022-12-13 21:07:32,085 INFO L138 Inliner]: procedures = 148, calls = 749, calls flagged for inlining = 54, calls inlined = 44, statements flattened = 1358 [2022-12-13 21:07:32,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:07:32,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:07:32,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:07:32,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:07:32,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:31" (1/1) ... [2022-12-13 21:07:32,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:31" (1/1) ... [2022-12-13 21:07:32,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:31" (1/1) ... [2022-12-13 21:07:32,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:31" (1/1) ... [2022-12-13 21:07:32,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:31" (1/1) ... [2022-12-13 21:07:32,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:31" (1/1) ... [2022-12-13 21:07:32,162 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:31" (1/1) ... [2022-12-13 21:07:32,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:31" (1/1) ... [2022-12-13 21:07:32,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:07:32,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:07:32,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:07:32,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:07:32,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:31" (1/1) ... [2022-12-13 21:07:32,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:07:32,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:07:32,212 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:07:32,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:07:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-12-13 21:07:32,244 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-12-13 21:07:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-12-13 21:07:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_init [2022-12-13 21:07:32,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_init [2022-12-13 21:07:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-12-13 21:07:32,244 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-12-13 21:07:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-12-13 21:07:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-13 21:07:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-13 21:07:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-13 21:07:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-12-13 21:07:32,245 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-12-13 21:07:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_control_cmd [2022-12-13 21:07:32,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_control_cmd [2022-12-13 21:07:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-12-13 21:07:32,245 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-12-13 21:07:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-13 21:07:32,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-13 21:07:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_exit [2022-12-13 21:07:32,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_exit [2022-12-13 21:07:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2022-12-13 21:07:32,245 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2022-12-13 21:07:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-13 21:07:32,245 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-13 21:07:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2022-12-13 21:07:32,245 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2022-12-13 21:07:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-12-13 21:07:32,245 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-12-13 21:07:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2022-12-13 21:07:32,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2022-12-13 21:07:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-12-13 21:07:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-12-13 21:07:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 21:07:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-12-13 21:07:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-12-13 21:07:32,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-12-13 21:07:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-12-13 21:07:32,246 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-12-13 21:07:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_command_msg [2022-12-13 21:07:32,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_command_msg [2022-12-13 21:07:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 21:07:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2022-12-13 21:07:32,246 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2022-12-13 21:07:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:07:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-12-13 21:07:32,246 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-12-13 21:07:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 21:07:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 21:07:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-12-13 21:07:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_write_mode [2022-12-13 21:07:32,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_write_mode [2022-12-13 21:07:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-12-13 21:07:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-12-13 21:07:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-12-13 21:07:32,247 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-12-13 21:07:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-12-13 21:07:32,247 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-12-13 21:07:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 21:07:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-12-13 21:07:32,247 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-12-13 21:07:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-12-13 21:07:32,247 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-12-13 21:07:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-12-13 21:07:32,247 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-12-13 21:07:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-12-13 21:07:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-12-13 21:07:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-12-13 21:07:32,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-12-13 21:07:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 21:07:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 21:07:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 21:07:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-12-13 21:07:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 21:07:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-12-13 21:07:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-12-13 21:07:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-13 21:07:32,248 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-13 21:07:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-12-13 21:07:32,248 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-12-13 21:07:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-13 21:07:32,248 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-13 21:07:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-12-13 21:07:32,248 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-12-13 21:07:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-12-13 21:07:32,248 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-12-13 21:07:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-13 21:07:32,248 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-13 21:07:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2022-12-13 21:07:32,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2022-12-13 21:07:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2022-12-13 21:07:32,248 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2022-12-13 21:07:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-12-13 21:07:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2022-12-13 21:07:32,248 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2022-12-13 21:07:32,249 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-12-13 21:07:32,249 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-12-13 21:07:32,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:07:32,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:07:32,544 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:07:32,546 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:07:34,248 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2022-12-13 21:07:36,456 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-12-13 21:07:44,683 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !false; [2022-12-13 21:07:44,683 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume false; [2022-12-13 21:07:44,771 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:07:44,778 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:07:44,778 INFO L300 CfgBuilder]: Removed 13 assume(true) statements. [2022-12-13 21:07:44,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:07:44 BoogieIcfgContainer [2022-12-13 21:07:44,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:07:44,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:07:44,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:07:44,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:07:44,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:07:30" (1/3) ... [2022-12-13 21:07:44,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7218f922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:07:44, skipping insertion in model container [2022-12-13 21:07:44,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:07:31" (2/3) ... [2022-12-13 21:07:44,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7218f922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:07:44, skipping insertion in model container [2022-12-13 21:07:44,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:07:44" (3/3) ... [2022-12-13 21:07:44,786 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2022-12-13 21:07:44,798 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:07:44,799 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 21:07:44,841 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:07:44,846 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;@3c4b69cb, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:07:44,846 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 21:07:44,849 INFO L276 IsEmpty]: Start isEmpty. Operand has 431 states, 304 states have (on average 1.3519736842105263) internal successors, (411), 316 states have internal predecessors, (411), 91 states have call successors, (91), 35 states have call predecessors, (91), 34 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) [2022-12-13 21:07:44,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 21:07:44,855 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:07:44,855 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:07:44,856 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:07:44,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:07:44,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1517292025, now seen corresponding path program 1 times [2022-12-13 21:07:44,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:07:44,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [206144467] [2022-12-13 21:07:44,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:07:44,870 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:07:44,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:07:44,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:07:44,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 21:07:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:45,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 21:07:45,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:07:45,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:07:45,446 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:07:45,446 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:07:45,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [206144467] [2022-12-13 21:07:45,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [206144467] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:07:45,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:07:45,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:07:45,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506896838] [2022-12-13 21:07:45,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:07:45,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:07:45,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:07:45,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:07:45,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:07:45,480 INFO L87 Difference]: Start difference. First operand has 431 states, 304 states have (on average 1.3519736842105263) internal successors, (411), 316 states have internal predecessors, (411), 91 states have call successors, (91), 35 states have call predecessors, (91), 34 states have return successors, (89), 87 states have call predecessors, (89), 89 states have call successors, (89) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 21:07:45,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:07:45,638 INFO L93 Difference]: Finished difference Result 1253 states and 1768 transitions. [2022-12-13 21:07:45,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:07:45,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-12-13 21:07:45,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:07:45,655 INFO L225 Difference]: With dead ends: 1253 [2022-12-13 21:07:45,655 INFO L226 Difference]: Without dead ends: 824 [2022-12-13 21:07:45,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:07:45,664 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 539 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:07:45,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 1229 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:07:45,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2022-12-13 21:07:45,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 820. [2022-12-13 21:07:45,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 581 states have (on average 1.2581755593803787) internal successors, (731), 593 states have internal predecessors, (731), 173 states have call successors, (173), 66 states have call predecessors, (173), 65 states have return successors, (172), 165 states have call predecessors, (172), 169 states have call successors, (172) [2022-12-13 21:07:45,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1076 transitions. [2022-12-13 21:07:45,767 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1076 transitions. Word has length 16 [2022-12-13 21:07:45,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:07:45,768 INFO L495 AbstractCegarLoop]: Abstraction has 820 states and 1076 transitions. [2022-12-13 21:07:45,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 21:07:45,768 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1076 transitions. [2022-12-13 21:07:45,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-12-13 21:07:45,768 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:07:45,769 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:07:45,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 21:07:45,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:07:45,970 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:07:45,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:07:45,972 INFO L85 PathProgramCache]: Analyzing trace with hash 208359179, now seen corresponding path program 1 times [2022-12-13 21:07:45,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:07:45,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1801023024] [2022-12-13 21:07:45,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:07:45,976 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:07:45,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:07:45,980 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:07:45,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 21:07:46,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:46,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 21:07:46,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:07:46,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:07:46,598 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:07:46,599 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:07:46,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1801023024] [2022-12-13 21:07:46,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1801023024] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:07:46,599 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:07:46,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:07:46,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742856040] [2022-12-13 21:07:46,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:07:46,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:07:46,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:07:46,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:07:46,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:07:46,601 INFO L87 Difference]: Start difference. First operand 820 states and 1076 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 21:07:46,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:07:46,729 INFO L93 Difference]: Finished difference Result 2433 states and 3207 transitions. [2022-12-13 21:07:46,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:07:46,730 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-12-13 21:07:46,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:07:46,740 INFO L225 Difference]: With dead ends: 2433 [2022-12-13 21:07:46,740 INFO L226 Difference]: Without dead ends: 1617 [2022-12-13 21:07:46,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:07:46,743 INFO L413 NwaCegarLoop]: 630 mSDtfsCounter, 529 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:07:46,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 1161 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:07:46,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2022-12-13 21:07:46,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1610. [2022-12-13 21:07:46,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 1141 states have (on average 1.2541630148992111) internal successors, (1431), 1160 states have internal predecessors, (1431), 340 states have call successors, (340), 129 states have call predecessors, (340), 128 states have return successors, (346), 328 states have call predecessors, (346), 336 states have call successors, (346) [2022-12-13 21:07:46,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 2117 transitions. [2022-12-13 21:07:46,825 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 2117 transitions. Word has length 17 [2022-12-13 21:07:46,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:07:46,826 INFO L495 AbstractCegarLoop]: Abstraction has 1610 states and 2117 transitions. [2022-12-13 21:07:46,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 21:07:46,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 2117 transitions. [2022-12-13 21:07:46,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-13 21:07:46,830 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:07:46,830 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:07:46,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 21:07:47,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:07:47,032 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:07:47,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:07:47,034 INFO L85 PathProgramCache]: Analyzing trace with hash 26582145, now seen corresponding path program 1 times [2022-12-13 21:07:47,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:07:47,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1267073078] [2022-12-13 21:07:47,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:07:47,040 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:07:47,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:07:47,044 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:07:47,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-13 21:07:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:47,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 21:07:47,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:07:47,719 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 21:07:47,720 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:07:47,720 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:07:47,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1267073078] [2022-12-13 21:07:47,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1267073078] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:07:47,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:07:47,720 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:07:47,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039498764] [2022-12-13 21:07:47,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:07:47,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 21:07:47,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:07:47,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:07:47,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:07:47,722 INFO L87 Difference]: Start difference. First operand 1610 states and 2117 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 21:07:47,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:07:47,816 INFO L93 Difference]: Finished difference Result 3212 states and 4225 transitions. [2022-12-13 21:07:47,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 21:07:47,817 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2022-12-13 21:07:47,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:07:47,822 INFO L225 Difference]: With dead ends: 3212 [2022-12-13 21:07:47,822 INFO L226 Difference]: Without dead ends: 1610 [2022-12-13 21:07:47,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:07:47,826 INFO L413 NwaCegarLoop]: 546 mSDtfsCounter, 0 mSDsluCounter, 1632 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2178 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:07:47,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2178 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:07:47,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1610 states. [2022-12-13 21:07:47,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1610 to 1610. [2022-12-13 21:07:47,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 1141 states have (on average 1.2532865907099036) internal successors, (1430), 1160 states have internal predecessors, (1430), 340 states have call successors, (340), 129 states have call predecessors, (340), 128 states have return successors, (346), 328 states have call predecessors, (346), 336 states have call successors, (346) [2022-12-13 21:07:47,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 2116 transitions. [2022-12-13 21:07:47,883 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 2116 transitions. Word has length 71 [2022-12-13 21:07:47,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:07:47,884 INFO L495 AbstractCegarLoop]: Abstraction has 1610 states and 2116 transitions. [2022-12-13 21:07:47,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 21:07:47,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 2116 transitions. [2022-12-13 21:07:47,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-13 21:07:47,885 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:07:47,886 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:07:47,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-13 21:07:48,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:07:48,086 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:07:48,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:07:48,087 INFO L85 PathProgramCache]: Analyzing trace with hash 2146869344, now seen corresponding path program 1 times [2022-12-13 21:07:48,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:07:48,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [50437420] [2022-12-13 21:07:48,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:07:48,088 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:07:48,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:07:48,089 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:07:48,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-13 21:07:48,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:48,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 21:07:48,552 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:07:48,642 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 21:07:48,642 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:07:48,642 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:07:48,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [50437420] [2022-12-13 21:07:48,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [50437420] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:07:48,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:07:48,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:07:48,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456390965] [2022-12-13 21:07:48,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:07:48,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:07:48,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:07:48,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:07:48,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:07:48,645 INFO L87 Difference]: Start difference. First operand 1610 states and 2116 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 21:07:48,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:07:48,774 INFO L93 Difference]: Finished difference Result 3924 states and 5357 transitions. [2022-12-13 21:07:48,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:07:48,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2022-12-13 21:07:48,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:07:48,782 INFO L225 Difference]: With dead ends: 3924 [2022-12-13 21:07:48,782 INFO L226 Difference]: Without dead ends: 2325 [2022-12-13 21:07:48,786 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:07:48,786 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 206 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 1122 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:07:48,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [273 Valid, 1122 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:07:48,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2325 states. [2022-12-13 21:07:48,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2325 to 2313. [2022-12-13 21:07:48,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2313 states, 1640 states have (on average 1.2939024390243903) internal successors, (2122), 1675 states have internal predecessors, (2122), 544 states have call successors, (544), 129 states have call predecessors, (544), 128 states have return successors, (558), 524 states have call predecessors, (558), 540 states have call successors, (558) [2022-12-13 21:07:48,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2313 states to 2313 states and 3224 transitions. [2022-12-13 21:07:48,877 INFO L78 Accepts]: Start accepts. Automaton has 2313 states and 3224 transitions. Word has length 71 [2022-12-13 21:07:48,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:07:48,877 INFO L495 AbstractCegarLoop]: Abstraction has 2313 states and 3224 transitions. [2022-12-13 21:07:48,877 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 21:07:48,877 INFO L276 IsEmpty]: Start isEmpty. Operand 2313 states and 3224 transitions. [2022-12-13 21:07:48,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-13 21:07:48,879 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:07:48,879 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:07:48,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-13 21:07:49,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:07:49,080 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:07:49,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:07:49,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1152569613, now seen corresponding path program 1 times [2022-12-13 21:07:49,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:07:49,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1365978348] [2022-12-13 21:07:49,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:07:49,082 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:07:49,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:07:49,083 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:07:49,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-13 21:07:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:49,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 21:07:49,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:07:49,587 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:07:49,587 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:07:49,587 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:07:49,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1365978348] [2022-12-13 21:07:49,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1365978348] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:07:49,588 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:07:49,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 21:07:49,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637657685] [2022-12-13 21:07:49,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:07:49,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 21:07:49,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:07:49,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 21:07:49,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 21:07:49,589 INFO L87 Difference]: Start difference. First operand 2313 states and 3224 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 21:07:50,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:07:50,123 INFO L93 Difference]: Finished difference Result 6261 states and 9014 transitions. [2022-12-13 21:07:50,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 21:07:50,124 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2022-12-13 21:07:50,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:07:50,143 INFO L225 Difference]: With dead ends: 6261 [2022-12-13 21:07:50,143 INFO L226 Difference]: Without dead ends: 3960 [2022-12-13 21:07:50,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:07:50,150 INFO L413 NwaCegarLoop]: 853 mSDtfsCounter, 447 mSDsluCounter, 1209 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 2062 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 21:07:50,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 2062 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 21:07:50,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3960 states. [2022-12-13 21:07:50,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3960 to 2329. [2022-12-13 21:07:50,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2329 states, 1656 states have (on average 1.291062801932367) internal successors, (2138), 1691 states have internal predecessors, (2138), 544 states have call successors, (544), 129 states have call predecessors, (544), 128 states have return successors, (558), 524 states have call predecessors, (558), 540 states have call successors, (558) [2022-12-13 21:07:50,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2329 states to 2329 states and 3240 transitions. [2022-12-13 21:07:50,336 INFO L78 Accepts]: Start accepts. Automaton has 2329 states and 3240 transitions. Word has length 68 [2022-12-13 21:07:50,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:07:50,336 INFO L495 AbstractCegarLoop]: Abstraction has 2329 states and 3240 transitions. [2022-12-13 21:07:50,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 21:07:50,336 INFO L276 IsEmpty]: Start isEmpty. Operand 2329 states and 3240 transitions. [2022-12-13 21:07:50,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-13 21:07:50,338 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:07:50,338 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:07:50,352 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-13 21:07:50,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:07:50,538 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:07:50,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:07:50,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1776712988, now seen corresponding path program 1 times [2022-12-13 21:07:50,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:07:50,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1560280970] [2022-12-13 21:07:50,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:07:50,539 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:07:50,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:07:50,540 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:07:50,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-12-13 21:07:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:50,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 21:07:50,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:07:51,040 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:07:51,040 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:07:51,040 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:07:51,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1560280970] [2022-12-13 21:07:51,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1560280970] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:07:51,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:07:51,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 21:07:51,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022982790] [2022-12-13 21:07:51,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:07:51,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 21:07:51,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:07:51,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 21:07:51,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 21:07:51,043 INFO L87 Difference]: Start difference. First operand 2329 states and 3240 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 21:07:51,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:07:51,494 INFO L93 Difference]: Finished difference Result 5821 states and 8310 transitions. [2022-12-13 21:07:51,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 21:07:51,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2022-12-13 21:07:51,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:07:51,511 INFO L225 Difference]: With dead ends: 5821 [2022-12-13 21:07:51,511 INFO L226 Difference]: Without dead ends: 3504 [2022-12-13 21:07:51,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:07:51,518 INFO L413 NwaCegarLoop]: 823 mSDtfsCounter, 336 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 2023 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:07:51,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 2023 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 21:07:51,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3504 states. [2022-12-13 21:07:51,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3504 to 2345. [2022-12-13 21:07:51,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2345 states, 1672 states have (on average 1.2882775119617225) internal successors, (2154), 1707 states have internal predecessors, (2154), 544 states have call successors, (544), 129 states have call predecessors, (544), 128 states have return successors, (558), 524 states have call predecessors, (558), 540 states have call successors, (558) [2022-12-13 21:07:51,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2345 states to 2345 states and 3256 transitions. [2022-12-13 21:07:51,742 INFO L78 Accepts]: Start accepts. Automaton has 2345 states and 3256 transitions. Word has length 69 [2022-12-13 21:07:51,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:07:51,742 INFO L495 AbstractCegarLoop]: Abstraction has 2345 states and 3256 transitions. [2022-12-13 21:07:51,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 21:07:51,743 INFO L276 IsEmpty]: Start isEmpty. Operand 2345 states and 3256 transitions. [2022-12-13 21:07:51,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-13 21:07:51,745 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:07:51,745 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:07:51,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2022-12-13 21:07:51,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:07:51,945 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:07:51,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:07:51,946 INFO L85 PathProgramCache]: Analyzing trace with hash 676145405, now seen corresponding path program 1 times [2022-12-13 21:07:51,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:07:51,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [157875160] [2022-12-13 21:07:51,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:07:51,947 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:07:51,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:07:51,947 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:07:51,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-12-13 21:07:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:52,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 21:07:52,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:07:52,736 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:07:52,737 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:07:52,737 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:07:52,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [157875160] [2022-12-13 21:07:52,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [157875160] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:07:52,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:07:52,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 21:07:52,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136607243] [2022-12-13 21:07:52,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:07:52,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 21:07:52,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:07:52,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 21:07:52,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:07:52,739 INFO L87 Difference]: Start difference. First operand 2345 states and 3256 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 21:07:53,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:07:53,034 INFO L93 Difference]: Finished difference Result 3553 states and 4967 transitions. [2022-12-13 21:07:53,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 21:07:53,035 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2022-12-13 21:07:53,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:07:53,045 INFO L225 Difference]: With dead ends: 3553 [2022-12-13 21:07:53,046 INFO L226 Difference]: Without dead ends: 2377 [2022-12-13 21:07:53,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:07:53,049 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 2 mSDsluCounter, 2710 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3254 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:07:53,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3254 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 21:07:53,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2377 states. [2022-12-13 21:07:53,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2377 to 2377. [2022-12-13 21:07:53,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2377 states, 1694 states have (on average 1.2845336481700118) internal successors, (2176), 1731 states have internal predecessors, (2176), 544 states have call successors, (544), 129 states have call predecessors, (544), 138 states have return successors, (592), 532 states have call predecessors, (592), 540 states have call successors, (592) [2022-12-13 21:07:53,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2377 states to 2377 states and 3312 transitions. [2022-12-13 21:07:53,249 INFO L78 Accepts]: Start accepts. Automaton has 2377 states and 3312 transitions. Word has length 69 [2022-12-13 21:07:53,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:07:53,250 INFO L495 AbstractCegarLoop]: Abstraction has 2377 states and 3312 transitions. [2022-12-13 21:07:53,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 21:07:53,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2377 states and 3312 transitions. [2022-12-13 21:07:53,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-13 21:07:53,252 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:07:53,252 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:07:53,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2022-12-13 21:07:53,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:07:53,453 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:07:53,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:07:53,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1333958436, now seen corresponding path program 1 times [2022-12-13 21:07:53,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:07:53,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1065307070] [2022-12-13 21:07:53,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:07:53,454 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:07:53,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:07:53,455 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:07:53,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-12-13 21:07:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:53,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 21:07:53,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:07:54,323 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:07:54,323 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:07:54,323 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:07:54,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1065307070] [2022-12-13 21:07:54,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1065307070] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:07:54,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:07:54,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 21:07:54,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402777091] [2022-12-13 21:07:54,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:07:54,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:07:54,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:07:54,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:07:54,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:07:54,325 INFO L87 Difference]: Start difference. First operand 2377 states and 3312 transitions. Second operand has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 21:07:55,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:07:55,409 INFO L93 Difference]: Finished difference Result 5537 states and 7892 transitions. [2022-12-13 21:07:55,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 21:07:55,410 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2022-12-13 21:07:55,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:07:55,420 INFO L225 Difference]: With dead ends: 5537 [2022-12-13 21:07:55,420 INFO L226 Difference]: Without dead ends: 3172 [2022-12-13 21:07:55,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-13 21:07:55,424 INFO L413 NwaCegarLoop]: 916 mSDtfsCounter, 217 mSDsluCounter, 6930 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 7846 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-13 21:07:55,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 7846 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-12-13 21:07:55,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3172 states. [2022-12-13 21:07:55,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3172 to 2381. [2022-12-13 21:07:55,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2381 states, 1698 states have (on average 1.28150765606596) internal successors, (2176), 1733 states have internal predecessors, (2176), 544 states have call successors, (544), 129 states have call predecessors, (544), 138 states have return successors, (592), 534 states have call predecessors, (592), 540 states have call successors, (592) [2022-12-13 21:07:55,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2381 states to 2381 states and 3312 transitions. [2022-12-13 21:07:55,650 INFO L78 Accepts]: Start accepts. Automaton has 2381 states and 3312 transitions. Word has length 69 [2022-12-13 21:07:55,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:07:55,651 INFO L495 AbstractCegarLoop]: Abstraction has 2381 states and 3312 transitions. [2022-12-13 21:07:55,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 7 states have internal predecessors, (54), 2 states have call successors, (8), 2 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 2 states have call successors, (7) [2022-12-13 21:07:55,651 INFO L276 IsEmpty]: Start isEmpty. Operand 2381 states and 3312 transitions. [2022-12-13 21:07:55,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-13 21:07:55,653 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:07:55,654 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:07:55,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2022-12-13 21:07:55,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:07:55,854 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:07:55,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:07:55,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1395829828, now seen corresponding path program 1 times [2022-12-13 21:07:55,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:07:55,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1313844167] [2022-12-13 21:07:55,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:07:55,856 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:07:55,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:07:55,857 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:07:55,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-12-13 21:07:56,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:56,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 21:07:56,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:07:56,484 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:07:56,484 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:07:56,485 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:07:56,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1313844167] [2022-12-13 21:07:56,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1313844167] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:07:56,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:07:56,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:07:56,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462656073] [2022-12-13 21:07:56,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:07:56,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 21:07:56,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:07:56,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:07:56,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:07:56,486 INFO L87 Difference]: Start difference. First operand 2381 states and 3312 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 21:07:56,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:07:56,862 INFO L93 Difference]: Finished difference Result 5691 states and 8110 transitions. [2022-12-13 21:07:56,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 21:07:56,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 75 [2022-12-13 21:07:56,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:07:56,872 INFO L225 Difference]: With dead ends: 5691 [2022-12-13 21:07:56,872 INFO L226 Difference]: Without dead ends: 3322 [2022-12-13 21:07:56,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:07:56,876 INFO L413 NwaCegarLoop]: 827 mSDtfsCounter, 168 mSDsluCounter, 2232 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 3059 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:07:56,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 3059 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 21:07:56,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3322 states. [2022-12-13 21:07:57,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3322 to 2171. [2022-12-13 21:07:57,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2171 states, 1554 states have (on average 1.2715572715572716) internal successors, (1976), 1573 states have internal predecessors, (1976), 480 states have call successors, (480), 127 states have call predecessors, (480), 136 states have return successors, (526), 478 states have call predecessors, (526), 476 states have call successors, (526) [2022-12-13 21:07:57,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2171 states to 2171 states and 2982 transitions. [2022-12-13 21:07:57,053 INFO L78 Accepts]: Start accepts. Automaton has 2171 states and 2982 transitions. Word has length 75 [2022-12-13 21:07:57,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:07:57,053 INFO L495 AbstractCegarLoop]: Abstraction has 2171 states and 2982 transitions. [2022-12-13 21:07:57,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 21:07:57,053 INFO L276 IsEmpty]: Start isEmpty. Operand 2171 states and 2982 transitions. [2022-12-13 21:07:57,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-12-13 21:07:57,054 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:07:57,054 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:07:57,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-12-13 21:07:57,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:07:57,255 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:07:57,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:07:57,256 INFO L85 PathProgramCache]: Analyzing trace with hash -506709307, now seen corresponding path program 1 times [2022-12-13 21:07:57,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:07:57,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [30408340] [2022-12-13 21:07:57,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:07:57,257 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:07:57,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:07:57,259 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:07:57,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-12-13 21:07:57,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:07:57,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 21:07:57,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:07:58,380 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:07:58,381 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:07:58,381 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:07:58,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [30408340] [2022-12-13 21:07:58,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [30408340] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:07:58,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:07:58,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 21:07:58,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123012441] [2022-12-13 21:07:58,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:07:58,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:07:58,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:07:58,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:07:58,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:07:58,382 INFO L87 Difference]: Start difference. First operand 2171 states and 2982 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 5 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-12-13 21:08:00,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:08:04,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:08:06,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:08:08,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:08:10,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:08:12,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:08:14,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:08:19,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:08:23,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:08:23,711 INFO L93 Difference]: Finished difference Result 5587 states and 7755 transitions. [2022-12-13 21:08:23,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 21:08:23,711 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 5 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 75 [2022-12-13 21:08:23,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:08:23,741 INFO L225 Difference]: With dead ends: 5587 [2022-12-13 21:08:23,741 INFO L226 Difference]: Without dead ends: 4377 [2022-12-13 21:08:23,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-13 21:08:23,747 INFO L413 NwaCegarLoop]: 654 mSDtfsCounter, 1141 mSDsluCounter, 1352 mSDsCounter, 0 mSdLazyCounter, 2077 mSolverCounterSat, 325 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1265 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 2406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 2077 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.7s IncrementalHoareTripleChecker+Time [2022-12-13 21:08:23,747 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1265 Valid, 2006 Invalid, 2406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 2077 Invalid, 4 Unknown, 0 Unchecked, 24.7s Time] [2022-12-13 21:08:23,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4377 states. [2022-12-13 21:08:24,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4377 to 4323. [2022-12-13 21:08:24,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4323 states, 3096 states have (on average 1.273578811369509) internal successors, (3943), 3131 states have internal predecessors, (3943), 954 states have call successors, (954), 251 states have call predecessors, (954), 272 states have return successors, (1082), 960 states have call predecessors, (1082), 950 states have call successors, (1082) [2022-12-13 21:08:24,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4323 states to 4323 states and 5979 transitions. [2022-12-13 21:08:24,166 INFO L78 Accepts]: Start accepts. Automaton has 4323 states and 5979 transitions. Word has length 75 [2022-12-13 21:08:24,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:08:24,166 INFO L495 AbstractCegarLoop]: Abstraction has 4323 states and 5979 transitions. [2022-12-13 21:08:24,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 5 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-12-13 21:08:24,167 INFO L276 IsEmpty]: Start isEmpty. Operand 4323 states and 5979 transitions. [2022-12-13 21:08:24,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 21:08:24,169 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:24,169 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:08:24,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-12-13 21:08:24,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:08:24,371 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:08:24,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:24,372 INFO L85 PathProgramCache]: Analyzing trace with hash -418091033, now seen corresponding path program 1 times [2022-12-13 21:08:24,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:08:24,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [660550775] [2022-12-13 21:08:24,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:08:24,376 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:08:24,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:08:24,379 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:08:24,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-12-13 21:08:25,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:25,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 21:08:25,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:08:25,086 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 21:08:25,086 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:08:25,086 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:08:25,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [660550775] [2022-12-13 21:08:25,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [660550775] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:08:25,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:08:25,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:08:25,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059475608] [2022-12-13 21:08:25,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:08:25,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:08:25,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:08:25,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:08:25,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:08:25,088 INFO L87 Difference]: Start difference. First operand 4323 states and 5979 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 21:08:25,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:08:25,332 INFO L93 Difference]: Finished difference Result 8644 states and 12098 transitions. [2022-12-13 21:08:25,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:08:25,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 94 [2022-12-13 21:08:25,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:08:25,343 INFO L225 Difference]: With dead ends: 8644 [2022-12-13 21:08:25,343 INFO L226 Difference]: Without dead ends: 4333 [2022-12-13 21:08:25,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:08:25,350 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 0 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1088 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:08:25,351 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1088 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:08:25,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4333 states. [2022-12-13 21:08:25,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4333 to 4333. [2022-12-13 21:08:25,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4333 states, 3106 states have (on average 1.27269800386349) internal successors, (3953), 3141 states have internal predecessors, (3953), 954 states have call successors, (954), 251 states have call predecessors, (954), 272 states have return successors, (1082), 960 states have call predecessors, (1082), 950 states have call successors, (1082) [2022-12-13 21:08:25,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4333 states to 4333 states and 5989 transitions. [2022-12-13 21:08:25,648 INFO L78 Accepts]: Start accepts. Automaton has 4333 states and 5989 transitions. Word has length 94 [2022-12-13 21:08:25,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:08:25,648 INFO L495 AbstractCegarLoop]: Abstraction has 4333 states and 5989 transitions. [2022-12-13 21:08:25,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 21:08:25,649 INFO L276 IsEmpty]: Start isEmpty. Operand 4333 states and 5989 transitions. [2022-12-13 21:08:25,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-12-13 21:08:25,650 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:25,650 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:08:25,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-12-13 21:08:25,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:08:25,852 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:08:25,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:25,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1449980852, now seen corresponding path program 1 times [2022-12-13 21:08:25,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:08:25,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1409106115] [2022-12-13 21:08:25,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:08:25,856 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:08:25,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:08:25,859 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:08:25,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-12-13 21:08:26,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:26,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 899 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 21:08:26,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:08:26,510 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 21:08:26,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:08:26,758 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 21:08:26,758 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:08:26,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1409106115] [2022-12-13 21:08:26,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1409106115] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:08:26,758 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 21:08:26,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-12-13 21:08:26,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787347698] [2022-12-13 21:08:26,759 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 21:08:26,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:08:26,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:08:26,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:08:26,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:08:26,761 INFO L87 Difference]: Start difference. First operand 4333 states and 5989 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 21:08:27,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:08:27,193 INFO L93 Difference]: Finished difference Result 8684 states and 12158 transitions. [2022-12-13 21:08:27,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:08:27,194 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 95 [2022-12-13 21:08:27,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:08:27,204 INFO L225 Difference]: With dead ends: 8684 [2022-12-13 21:08:27,204 INFO L226 Difference]: Without dead ends: 4363 [2022-12-13 21:08:27,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:08:27,211 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 0 mSDsluCounter, 1629 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2174 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:08:27,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2174 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 21:08:27,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4363 states. [2022-12-13 21:08:27,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4363 to 4363. [2022-12-13 21:08:27,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4363 states, 3136 states have (on average 1.2700892857142858) internal successors, (3983), 3171 states have internal predecessors, (3983), 954 states have call successors, (954), 251 states have call predecessors, (954), 272 states have return successors, (1082), 960 states have call predecessors, (1082), 950 states have call successors, (1082) [2022-12-13 21:08:27,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4363 states to 4363 states and 6019 transitions. [2022-12-13 21:08:27,476 INFO L78 Accepts]: Start accepts. Automaton has 4363 states and 6019 transitions. Word has length 95 [2022-12-13 21:08:27,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:08:27,476 INFO L495 AbstractCegarLoop]: Abstraction has 4363 states and 6019 transitions. [2022-12-13 21:08:27,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-12-13 21:08:27,477 INFO L276 IsEmpty]: Start isEmpty. Operand 4363 states and 6019 transitions. [2022-12-13 21:08:27,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-12-13 21:08:27,479 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:27,479 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-12-13 21:08:27,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-12-13 21:08:27,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:08:27,680 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:08:27,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:27,680 INFO L85 PathProgramCache]: Analyzing trace with hash 1398514888, now seen corresponding path program 1 times [2022-12-13 21:08:27,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:08:27,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [90917003] [2022-12-13 21:08:27,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:08:27,681 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:08:27,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:08:27,682 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:08:27,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-12-13 21:08:28,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:28,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 926 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 21:08:28,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:08:28,412 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 21:08:28,412 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:08:28,413 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:08:28,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [90917003] [2022-12-13 21:08:28,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [90917003] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:08:28,413 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:08:28,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:08:28,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778994129] [2022-12-13 21:08:28,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:08:28,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 21:08:28,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:08:28,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:08:28,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:08:28,415 INFO L87 Difference]: Start difference. First operand 4363 states and 6019 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 21:08:29,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:08:29,954 INFO L93 Difference]: Finished difference Result 9875 states and 13940 transitions. [2022-12-13 21:08:29,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 21:08:29,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 98 [2022-12-13 21:08:29,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:08:29,966 INFO L225 Difference]: With dead ends: 9875 [2022-12-13 21:08:29,966 INFO L226 Difference]: Without dead ends: 5524 [2022-12-13 21:08:29,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:08:29,972 INFO L413 NwaCegarLoop]: 823 mSDtfsCounter, 173 mSDsluCounter, 2223 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 3046 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:08:29,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 3046 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 21:08:29,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5524 states. [2022-12-13 21:08:30,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5524 to 3695. [2022-12-13 21:08:30,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3695 states, 2682 states have (on average 1.267710663683818) internal successors, (3400), 2699 states have internal predecessors, (3400), 788 states have call successors, (788), 205 states have call predecessors, (788), 224 states have return successors, (898), 810 states have call predecessors, (898), 784 states have call successors, (898) [2022-12-13 21:08:30,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3695 states to 3695 states and 5086 transitions. [2022-12-13 21:08:30,276 INFO L78 Accepts]: Start accepts. Automaton has 3695 states and 5086 transitions. Word has length 98 [2022-12-13 21:08:30,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:08:30,277 INFO L495 AbstractCegarLoop]: Abstraction has 3695 states and 5086 transitions. [2022-12-13 21:08:30,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 21:08:30,277 INFO L276 IsEmpty]: Start isEmpty. Operand 3695 states and 5086 transitions. [2022-12-13 21:08:30,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-13 21:08:30,279 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:30,279 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:08:30,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-12-13 21:08:30,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:08:30,480 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:08:30,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:30,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1871827029, now seen corresponding path program 1 times [2022-12-13 21:08:30,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:08:30,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [254388248] [2022-12-13 21:08:30,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:08:30,482 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:08:30,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:08:30,482 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:08:30,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-12-13 21:08:30,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:31,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 21:08:31,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:08:31,187 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 21:08:31,188 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:08:31,188 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:08:31,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [254388248] [2022-12-13 21:08:31,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [254388248] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:08:31,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:08:31,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:08:31,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666550010] [2022-12-13 21:08:31,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:08:31,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 21:08:31,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:08:31,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:08:31,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:08:31,190 INFO L87 Difference]: Start difference. First operand 3695 states and 5086 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 21:08:31,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:08:31,844 INFO L93 Difference]: Finished difference Result 8437 states and 11958 transitions. [2022-12-13 21:08:31,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 21:08:31,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 87 [2022-12-13 21:08:31,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:08:31,858 INFO L225 Difference]: With dead ends: 8437 [2022-12-13 21:08:31,858 INFO L226 Difference]: Without dead ends: 5178 [2022-12-13 21:08:31,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:08:31,863 INFO L413 NwaCegarLoop]: 824 mSDtfsCounter, 168 mSDsluCounter, 2236 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 3060 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:08:31,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 3060 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 21:08:31,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5178 states. [2022-12-13 21:08:32,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5178 to 3511. [2022-12-13 21:08:32,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3511 states, 2554 states have (on average 1.2623335943617855) internal successors, (3224), 2559 states have internal predecessors, (3224), 732 states have call successors, (732), 203 states have call predecessors, (732), 224 states have return successors, (848), 764 states have call predecessors, (848), 728 states have call successors, (848) [2022-12-13 21:08:32,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3511 states to 3511 states and 4804 transitions. [2022-12-13 21:08:32,285 INFO L78 Accepts]: Start accepts. Automaton has 3511 states and 4804 transitions. Word has length 87 [2022-12-13 21:08:32,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:08:32,285 INFO L495 AbstractCegarLoop]: Abstraction has 3511 states and 4804 transitions. [2022-12-13 21:08:32,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 21:08:32,285 INFO L276 IsEmpty]: Start isEmpty. Operand 3511 states and 4804 transitions. [2022-12-13 21:08:32,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-13 21:08:32,288 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:32,288 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:08:32,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2022-12-13 21:08:32,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:08:32,489 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:08:32,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:32,489 INFO L85 PathProgramCache]: Analyzing trace with hash -205382314, now seen corresponding path program 1 times [2022-12-13 21:08:32,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:08:32,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1780827990] [2022-12-13 21:08:32,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:08:32,490 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:08:32,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:08:32,490 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:08:32,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-12-13 21:08:33,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:33,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 21:08:33,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:08:33,392 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 21:08:33,393 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:08:33,393 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:08:33,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1780827990] [2022-12-13 21:08:33,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1780827990] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:08:33,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:08:33,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 21:08:33,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109727763] [2022-12-13 21:08:33,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:08:33,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 21:08:33,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:08:33,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 21:08:33,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:08:33,395 INFO L87 Difference]: Start difference. First operand 3511 states and 4804 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-13 21:08:33,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:08:33,747 INFO L93 Difference]: Finished difference Result 5178 states and 7121 transitions. [2022-12-13 21:08:33,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 21:08:33,748 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 87 [2022-12-13 21:08:33,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:08:33,756 INFO L225 Difference]: With dead ends: 5178 [2022-12-13 21:08:33,756 INFO L226 Difference]: Without dead ends: 3519 [2022-12-13 21:08:33,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:08:33,760 INFO L413 NwaCegarLoop]: 543 mSDtfsCounter, 2 mSDsluCounter, 2705 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 3248 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:08:33,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 3248 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 21:08:33,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3519 states. [2022-12-13 21:08:34,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3519 to 3519. [2022-12-13 21:08:34,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3519 states, 2562 states have (on average 1.2615144418423108) internal successors, (3232), 2563 states have internal predecessors, (3232), 732 states have call successors, (732), 203 states have call predecessors, (732), 224 states have return successors, (848), 768 states have call predecessors, (848), 728 states have call successors, (848) [2022-12-13 21:08:34,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3519 states to 3519 states and 4812 transitions. [2022-12-13 21:08:34,115 INFO L78 Accepts]: Start accepts. Automaton has 3519 states and 4812 transitions. Word has length 87 [2022-12-13 21:08:34,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:08:34,115 INFO L495 AbstractCegarLoop]: Abstraction has 3519 states and 4812 transitions. [2022-12-13 21:08:34,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 5 states have internal predecessors, (66), 2 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-13 21:08:34,116 INFO L276 IsEmpty]: Start isEmpty. Operand 3519 states and 4812 transitions. [2022-12-13 21:08:34,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-12-13 21:08:34,117 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:34,117 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:08:34,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2022-12-13 21:08:34,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:08:34,318 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:08:34,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:34,318 INFO L85 PathProgramCache]: Analyzing trace with hash 2079481141, now seen corresponding path program 1 times [2022-12-13 21:08:34,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:08:34,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [717918650] [2022-12-13 21:08:34,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:08:34,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:08:34,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:08:34,319 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:08:34,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-12-13 21:08:34,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:34,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 848 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 21:08:34,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:08:34,927 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 21:08:34,927 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:08:34,928 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:08:34,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [717918650] [2022-12-13 21:08:34,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [717918650] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:08:34,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:08:34,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:08:34,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476981383] [2022-12-13 21:08:34,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:08:34,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:08:34,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:08:34,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:08:34,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:08:34,930 INFO L87 Difference]: Start difference. First operand 3519 states and 4812 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 21:08:35,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:08:35,487 INFO L93 Difference]: Finished difference Result 6181 states and 8680 transitions. [2022-12-13 21:08:35,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:08:35,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 87 [2022-12-13 21:08:35,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:08:35,499 INFO L225 Difference]: With dead ends: 6181 [2022-12-13 21:08:35,499 INFO L226 Difference]: Without dead ends: 4518 [2022-12-13 21:08:35,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:08:35,503 INFO L413 NwaCegarLoop]: 852 mSDtfsCounter, 197 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:08:35,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 1450 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 21:08:35,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4518 states. [2022-12-13 21:08:35,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4518 to 3527. [2022-12-13 21:08:35,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3527 states, 2570 states have (on average 1.2607003891050583) internal successors, (3240), 2571 states have internal predecessors, (3240), 732 states have call successors, (732), 203 states have call predecessors, (732), 224 states have return successors, (848), 768 states have call predecessors, (848), 728 states have call successors, (848) [2022-12-13 21:08:35,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3527 states to 3527 states and 4820 transitions. [2022-12-13 21:08:35,780 INFO L78 Accepts]: Start accepts. Automaton has 3527 states and 4820 transitions. Word has length 87 [2022-12-13 21:08:35,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:08:35,780 INFO L495 AbstractCegarLoop]: Abstraction has 3527 states and 4820 transitions. [2022-12-13 21:08:35,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 21:08:35,780 INFO L276 IsEmpty]: Start isEmpty. Operand 3527 states and 4820 transitions. [2022-12-13 21:08:35,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 21:08:35,782 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:35,782 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:08:35,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-12-13 21:08:35,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:08:35,983 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:08:35,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:35,984 INFO L85 PathProgramCache]: Analyzing trace with hash 390816807, now seen corresponding path program 1 times [2022-12-13 21:08:35,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:08:35,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [731135805] [2022-12-13 21:08:35,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:08:35,987 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:08:35,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:08:35,990 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:08:35,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-12-13 21:08:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:36,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 782 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 21:08:36,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:08:36,537 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 21:08:36,537 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:08:36,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:08:36,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [731135805] [2022-12-13 21:08:36,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [731135805] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:08:36,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:08:36,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 21:08:36,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137324954] [2022-12-13 21:08:36,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:08:36,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 21:08:36,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:08:36,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 21:08:36,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 21:08:36,539 INFO L87 Difference]: Start difference. First operand 3527 states and 4820 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-12-13 21:08:36,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:08:36,932 INFO L93 Difference]: Finished difference Result 7110 states and 9701 transitions. [2022-12-13 21:08:36,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 21:08:36,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 94 [2022-12-13 21:08:36,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:08:36,940 INFO L225 Difference]: With dead ends: 7110 [2022-12-13 21:08:36,940 INFO L226 Difference]: Without dead ends: 3583 [2022-12-13 21:08:36,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:08:36,945 INFO L413 NwaCegarLoop]: 555 mSDtfsCounter, 16 mSDsluCounter, 1090 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 1645 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:08:36,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 1645 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 21:08:36,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3583 states. [2022-12-13 21:08:37,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3583 to 3545. [2022-12-13 21:08:37,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3545 states, 2582 states have (on average 1.2587141750580946) internal successors, (3250), 2583 states have internal predecessors, (3250), 735 states have call successors, (735), 206 states have call predecessors, (735), 227 states have return successors, (851), 771 states have call predecessors, (851), 731 states have call successors, (851) [2022-12-13 21:08:37,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3545 states to 3545 states and 4836 transitions. [2022-12-13 21:08:37,208 INFO L78 Accepts]: Start accepts. Automaton has 3545 states and 4836 transitions. Word has length 94 [2022-12-13 21:08:37,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:08:37,209 INFO L495 AbstractCegarLoop]: Abstraction has 3545 states and 4836 transitions. [2022-12-13 21:08:37,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2022-12-13 21:08:37,209 INFO L276 IsEmpty]: Start isEmpty. Operand 3545 states and 4836 transitions. [2022-12-13 21:08:37,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-12-13 21:08:37,210 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:37,210 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:08:37,238 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2022-12-13 21:08:37,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:08:37,412 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:08:37,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:37,413 INFO L85 PathProgramCache]: Analyzing trace with hash -153386871, now seen corresponding path program 1 times [2022-12-13 21:08:37,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:08:37,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1740376744] [2022-12-13 21:08:37,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:08:37,416 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:08:37,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:08:37,418 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:08:37,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-12-13 21:08:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:38,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 21:08:38,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:08:38,726 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 21:08:38,726 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:08:38,726 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:08:38,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1740376744] [2022-12-13 21:08:38,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1740376744] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:08:38,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:08:38,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 21:08:38,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311143232] [2022-12-13 21:08:38,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:08:38,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:08:38,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:08:38,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:08:38,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:08:38,728 INFO L87 Difference]: Start difference. First operand 3545 states and 4836 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 21:08:41,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:08:41,068 INFO L93 Difference]: Finished difference Result 8540 states and 12020 transitions. [2022-12-13 21:08:41,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 21:08:41,069 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 2 states have call successors, (11) Word has length 96 [2022-12-13 21:08:41,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:08:41,079 INFO L225 Difference]: With dead ends: 8540 [2022-12-13 21:08:41,079 INFO L226 Difference]: Without dead ends: 5431 [2022-12-13 21:08:41,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-13 21:08:41,084 INFO L413 NwaCegarLoop]: 880 mSDtfsCounter, 228 mSDsluCounter, 6659 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 7539 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-13 21:08:41,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 7539 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-13 21:08:41,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5431 states. [2022-12-13 21:08:41,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5431 to 3545. [2022-12-13 21:08:41,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3545 states, 2582 states have (on average 1.2556158017041052) internal successors, (3242), 2583 states have internal predecessors, (3242), 735 states have call successors, (735), 206 states have call predecessors, (735), 227 states have return successors, (851), 771 states have call predecessors, (851), 731 states have call successors, (851) [2022-12-13 21:08:41,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3545 states to 3545 states and 4828 transitions. [2022-12-13 21:08:41,391 INFO L78 Accepts]: Start accepts. Automaton has 3545 states and 4828 transitions. Word has length 96 [2022-12-13 21:08:41,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:08:41,391 INFO L495 AbstractCegarLoop]: Abstraction has 3545 states and 4828 transitions. [2022-12-13 21:08:41,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 7 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 21:08:41,391 INFO L276 IsEmpty]: Start isEmpty. Operand 3545 states and 4828 transitions. [2022-12-13 21:08:41,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-12-13 21:08:41,392 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:41,392 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:08:41,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-12-13 21:08:41,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:08:41,594 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:08:41,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:41,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1118734186, now seen corresponding path program 1 times [2022-12-13 21:08:41,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:08:41,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1067852401] [2022-12-13 21:08:41,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:08:41,599 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:08:41,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:08:41,602 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:08:41,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-12-13 21:08:42,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:42,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 21:08:42,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:08:42,916 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 21:08:42,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:08:43,717 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-12-13 21:08:43,717 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:08:43,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1067852401] [2022-12-13 21:08:43,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1067852401] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-13 21:08:43,717 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 21:08:43,717 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2022-12-13 21:08:43,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10068160] [2022-12-13 21:08:43,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:08:43,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:08:43,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:08:43,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:08:43,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:08:43,718 INFO L87 Difference]: Start difference. First operand 3545 states and 4828 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 5 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-12-13 21:08:45,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:08:48,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:08:49,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:08:51,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:08:54,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:08:56,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:08:58,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:09:02,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:09:06,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:09:06,261 INFO L93 Difference]: Finished difference Result 6750 states and 9229 transitions. [2022-12-13 21:09:06,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 21:09:06,263 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 5 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 89 [2022-12-13 21:09:06,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:09:06,279 INFO L225 Difference]: With dead ends: 6750 [2022-12-13 21:09:06,279 INFO L226 Difference]: Without dead ends: 6747 [2022-12-13 21:09:06,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-12-13 21:09:06,281 INFO L413 NwaCegarLoop]: 883 mSDtfsCounter, 1478 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 1155 mSolverCounterSat, 386 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 1602 SdHoareTripleChecker+Invalid, 1546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 386 IncrementalHoareTripleChecker+Valid, 1155 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.6s IncrementalHoareTripleChecker+Time [2022-12-13 21:09:06,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1556 Valid, 1602 Invalid, 1546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [386 Valid, 1155 Invalid, 5 Unknown, 0 Unchecked, 21.6s Time] [2022-12-13 21:09:06,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6747 states. [2022-12-13 21:09:06,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6747 to 6641. [2022-12-13 21:09:06,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6641 states, 4826 states have (on average 1.2590136759220887) internal successors, (6076), 4817 states have internal predecessors, (6076), 1393 states have call successors, (1393), 380 states have call predecessors, (1393), 421 states have return successors, (1648), 1479 states have call predecessors, (1648), 1389 states have call successors, (1648) [2022-12-13 21:09:06,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6641 states to 6641 states and 9117 transitions. [2022-12-13 21:09:06,844 INFO L78 Accepts]: Start accepts. Automaton has 6641 states and 9117 transitions. Word has length 89 [2022-12-13 21:09:06,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:09:06,844 INFO L495 AbstractCegarLoop]: Abstraction has 6641 states and 9117 transitions. [2022-12-13 21:09:06,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 5 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-12-13 21:09:06,844 INFO L276 IsEmpty]: Start isEmpty. Operand 6641 states and 9117 transitions. [2022-12-13 21:09:06,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 21:09:06,845 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:09:06,845 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:09:06,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2022-12-13 21:09:07,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:09:07,047 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:09:07,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:09:07,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1748979270, now seen corresponding path program 1 times [2022-12-13 21:09:07,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:09:07,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [843867334] [2022-12-13 21:09:07,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:09:07,051 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:09:07,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:09:07,053 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:09:07,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-12-13 21:09:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:09:07,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 806 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 21:09:07,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:09:08,267 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 21:09:08,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:09:09,053 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 21:09:09,053 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:09:09,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [843867334] [2022-12-13 21:09:09,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [843867334] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:09:09,054 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 21:09:09,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2022-12-13 21:09:09,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86169281] [2022-12-13 21:09:09,054 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 21:09:09,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:09:09,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:09:09,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:09:09,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:09:09,056 INFO L87 Difference]: Start difference. First operand 6641 states and 9117 transitions. Second operand has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 10 states have internal predecessors, (79), 3 states have call successors, (13), 2 states have call predecessors, (13), 6 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) [2022-12-13 21:09:11,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:09:11,906 INFO L93 Difference]: Finished difference Result 16158 states and 22961 transitions. [2022-12-13 21:09:11,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 21:09:11,907 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 10 states have internal predecessors, (79), 3 states have call successors, (13), 2 states have call predecessors, (13), 6 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) Word has length 94 [2022-12-13 21:09:11,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:09:11,928 INFO L225 Difference]: With dead ends: 16158 [2022-12-13 21:09:11,928 INFO L226 Difference]: Without dead ends: 9953 [2022-12-13 21:09:11,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-12-13 21:09:11,942 INFO L413 NwaCegarLoop]: 822 mSDtfsCounter, 221 mSDsluCounter, 8602 mSDsCounter, 0 mSdLazyCounter, 371 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 9424 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-12-13 21:09:11,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 9424 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 371 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-12-13 21:09:11,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9953 states. [2022-12-13 21:09:12,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9953 to 6643. [2022-12-13 21:09:12,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6643 states, 4824 states have (on average 1.2591210613598673) internal successors, (6074), 4825 states have internal predecessors, (6074), 1393 states have call successors, (1393), 380 states have call predecessors, (1393), 425 states have return successors, (1658), 1465 states have call predecessors, (1658), 1389 states have call successors, (1658) [2022-12-13 21:09:12,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6643 states to 6643 states and 9125 transitions. [2022-12-13 21:09:12,623 INFO L78 Accepts]: Start accepts. Automaton has 6643 states and 9125 transitions. Word has length 94 [2022-12-13 21:09:12,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:09:12,623 INFO L495 AbstractCegarLoop]: Abstraction has 6643 states and 9125 transitions. [2022-12-13 21:09:12,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 10 states have internal predecessors, (79), 3 states have call successors, (13), 2 states have call predecessors, (13), 6 states have return successors, (13), 6 states have call predecessors, (13), 3 states have call successors, (13) [2022-12-13 21:09:12,623 INFO L276 IsEmpty]: Start isEmpty. Operand 6643 states and 9125 transitions. [2022-12-13 21:09:12,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-12-13 21:09:12,625 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:09:12,625 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:09:12,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2022-12-13 21:09:12,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:09:12,826 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:09:12,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:09:12,827 INFO L85 PathProgramCache]: Analyzing trace with hash 832679025, now seen corresponding path program 1 times [2022-12-13 21:09:12,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:09:12,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1022401238] [2022-12-13 21:09:12,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:09:12,830 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:09:12,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:09:12,833 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:09:12,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2022-12-13 21:09:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:09:13,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 814 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 21:09:13,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:09:13,763 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 21:09:13,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:09:13,764 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:09:13,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1022401238] [2022-12-13 21:09:13,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1022401238] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:09:13,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:09:13,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 21:09:13,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200482931] [2022-12-13 21:09:13,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:09:13,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:09:13,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:09:13,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:09:13,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:09:13,766 INFO L87 Difference]: Start difference. First operand 6643 states and 9125 transitions. Second operand has 10 states, 10 states have (on average 7.3) internal successors, (73), 7 states have internal predecessors, (73), 2 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (11), 5 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 21:09:15,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:09:15,349 INFO L93 Difference]: Finished difference Result 15316 states and 21649 transitions. [2022-12-13 21:09:15,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 21:09:15,351 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 7 states have internal predecessors, (73), 2 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (11), 5 states have call predecessors, (11), 2 states have call successors, (11) Word has length 97 [2022-12-13 21:09:15,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:09:15,367 INFO L225 Difference]: With dead ends: 15316 [2022-12-13 21:09:15,367 INFO L226 Difference]: Without dead ends: 9109 [2022-12-13 21:09:15,376 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-13 21:09:15,376 INFO L413 NwaCegarLoop]: 834 mSDtfsCounter, 213 mSDsluCounter, 6334 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 7168 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-12-13 21:09:15,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 7168 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-12-13 21:09:15,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9109 states. [2022-12-13 21:09:16,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9109 to 6635. [2022-12-13 21:09:16,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6635 states, 4816 states have (on average 1.2562292358803986) internal successors, (6050), 4821 states have internal predecessors, (6050), 1393 states have call successors, (1393), 380 states have call predecessors, (1393), 425 states have return successors, (1658), 1461 states have call predecessors, (1658), 1389 states have call successors, (1658) [2022-12-13 21:09:16,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6635 states to 6635 states and 9101 transitions. [2022-12-13 21:09:16,038 INFO L78 Accepts]: Start accepts. Automaton has 6635 states and 9101 transitions. Word has length 97 [2022-12-13 21:09:16,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:09:16,038 INFO L495 AbstractCegarLoop]: Abstraction has 6635 states and 9101 transitions. [2022-12-13 21:09:16,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.3) internal successors, (73), 7 states have internal predecessors, (73), 2 states have call successors, (11), 2 states have call predecessors, (11), 5 states have return successors, (11), 5 states have call predecessors, (11), 2 states have call successors, (11) [2022-12-13 21:09:16,039 INFO L276 IsEmpty]: Start isEmpty. Operand 6635 states and 9101 transitions. [2022-12-13 21:09:16,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-12-13 21:09:16,040 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:09:16,040 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:09:16,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Ended with exit code 0 [2022-12-13 21:09:16,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:09:16,242 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:09:16,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:09:16,243 INFO L85 PathProgramCache]: Analyzing trace with hash -1118058599, now seen corresponding path program 1 times [2022-12-13 21:09:16,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:09:16,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1053891369] [2022-12-13 21:09:16,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:09:16,246 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:09:16,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:09:16,249 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:09:16,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-12-13 21:09:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:09:16,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 21:09:16,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:09:17,228 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 21:09:17,228 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:09:17,228 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:09:17,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1053891369] [2022-12-13 21:09:17,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1053891369] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:09:17,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:09:17,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 21:09:17,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596927666] [2022-12-13 21:09:17,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:09:17,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:09:17,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:09:17,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:09:17,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:09:17,229 INFO L87 Difference]: Start difference. First operand 6635 states and 9101 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 21:09:19,404 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:09:21,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-13 21:09:22,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:09:22,275 INFO L93 Difference]: Finished difference Result 13330 states and 18284 transitions. [2022-12-13 21:09:22,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 21:09:22,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2022-12-13 21:09:22,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:09:22,287 INFO L225 Difference]: With dead ends: 13330 [2022-12-13 21:09:22,287 INFO L226 Difference]: Without dead ends: 6701 [2022-12-13 21:09:22,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:09:22,295 INFO L413 NwaCegarLoop]: 556 mSDtfsCounter, 20 mSDsluCounter, 2198 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2754 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:09:22,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2754 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 2 Unknown, 0 Unchecked, 4.2s Time] [2022-12-13 21:09:22,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6701 states. [2022-12-13 21:09:22,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6701 to 6644. [2022-12-13 21:09:22,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6644 states, 4825 states have (on average 1.2557512953367875) internal successors, (6059), 4827 states have internal predecessors, (6059), 1393 states have call successors, (1393), 380 states have call predecessors, (1393), 425 states have return successors, (1656), 1464 states have call predecessors, (1656), 1389 states have call successors, (1656) [2022-12-13 21:09:22,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6644 states to 6644 states and 9108 transitions. [2022-12-13 21:09:22,979 INFO L78 Accepts]: Start accepts. Automaton has 6644 states and 9108 transitions. Word has length 108 [2022-12-13 21:09:22,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:09:22,979 INFO L495 AbstractCegarLoop]: Abstraction has 6644 states and 9108 transitions. [2022-12-13 21:09:22,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 5 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 21:09:22,979 INFO L276 IsEmpty]: Start isEmpty. Operand 6644 states and 9108 transitions. [2022-12-13 21:09:22,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-12-13 21:09:22,980 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:09:22,981 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:09:22,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2022-12-13 21:09:23,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:09:23,182 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:09:23,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:09:23,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1967666458, now seen corresponding path program 1 times [2022-12-13 21:09:23,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:09:23,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1923752161] [2022-12-13 21:09:23,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:09:23,186 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:09:23,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:09:23,189 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:09:23,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2022-12-13 21:09:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:09:24,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 990 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 21:09:24,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:09:24,158 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 21:09:24,158 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:09:24,158 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:09:24,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1923752161] [2022-12-13 21:09:24,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1923752161] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:09:24,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:09:24,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:09:24,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675272002] [2022-12-13 21:09:24,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:09:24,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:09:24,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:09:24,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:09:24,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:09:24,159 INFO L87 Difference]: Start difference. First operand 6644 states and 9108 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 21:09:24,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:09:24,784 INFO L93 Difference]: Finished difference Result 13315 states and 18256 transitions. [2022-12-13 21:09:24,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:09:24,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2022-12-13 21:09:24,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:09:24,796 INFO L225 Difference]: With dead ends: 13315 [2022-12-13 21:09:24,797 INFO L226 Difference]: Without dead ends: 6683 [2022-12-13 21:09:24,804 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:09:24,804 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 1 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:09:24,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1085 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:09:24,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6683 states. [2022-12-13 21:09:25,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6683 to 6670. [2022-12-13 21:09:25,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6670 states, 4851 states have (on average 1.2543805400948258) internal successors, (6085), 4853 states have internal predecessors, (6085), 1393 states have call successors, (1393), 380 states have call predecessors, (1393), 425 states have return successors, (1656), 1464 states have call predecessors, (1656), 1389 states have call successors, (1656) [2022-12-13 21:09:25,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6670 states to 6670 states and 9134 transitions. [2022-12-13 21:09:25,394 INFO L78 Accepts]: Start accepts. Automaton has 6670 states and 9134 transitions. Word has length 108 [2022-12-13 21:09:25,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:09:25,394 INFO L495 AbstractCegarLoop]: Abstraction has 6670 states and 9134 transitions. [2022-12-13 21:09:25,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-13 21:09:25,395 INFO L276 IsEmpty]: Start isEmpty. Operand 6670 states and 9134 transitions. [2022-12-13 21:09:25,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-12-13 21:09:25,396 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:09:25,396 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:09:25,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2022-12-13 21:09:25,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:09:25,598 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:09:25,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:09:25,599 INFO L85 PathProgramCache]: Analyzing trace with hash -2053204873, now seen corresponding path program 1 times [2022-12-13 21:09:25,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:09:25,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2073214509] [2022-12-13 21:09:25,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:09:25,602 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:09:25,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:09:25,604 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:09:25,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-12-13 21:09:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:09:26,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 21:09:26,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:09:27,071 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 21:09:27,071 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:09:27,071 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:09:27,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2073214509] [2022-12-13 21:09:27,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2073214509] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:09:27,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:09:27,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-12-13 21:09:27,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999963981] [2022-12-13 21:09:27,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:09:27,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 21:09:27,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:09:27,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 21:09:27,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-12-13 21:09:27,073 INFO L87 Difference]: Start difference. First operand 6670 states and 9134 transitions. Second operand has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 9 states have internal predecessors, (80), 3 states have call successors, (11), 2 states have call predecessors, (11), 6 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-13 21:09:29,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:09:29,659 INFO L93 Difference]: Finished difference Result 13911 states and 19629 transitions. [2022-12-13 21:09:29,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 21:09:29,661 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 9 states have internal predecessors, (80), 3 states have call successors, (11), 2 states have call predecessors, (11), 6 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) Word has length 104 [2022-12-13 21:09:29,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:09:29,677 INFO L225 Difference]: With dead ends: 13911 [2022-12-13 21:09:29,677 INFO L226 Difference]: Without dead ends: 9103 [2022-12-13 21:09:29,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-12-13 21:09:29,685 INFO L413 NwaCegarLoop]: 826 mSDtfsCounter, 209 mSDsluCounter, 7908 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 8734 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-12-13 21:09:29,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 8734 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-12-13 21:09:29,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9103 states. [2022-12-13 21:09:30,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9103 to 6614. [2022-12-13 21:09:30,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6614 states, 4821 states have (on average 1.2543040862891517) internal successors, (6047), 4833 states have internal predecessors, (6047), 1369 states have call successors, (1369), 376 states have call predecessors, (1369), 423 states have return successors, (1620), 1432 states have call predecessors, (1620), 1365 states have call successors, (1620) [2022-12-13 21:09:30,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6614 states to 6614 states and 9036 transitions. [2022-12-13 21:09:30,316 INFO L78 Accepts]: Start accepts. Automaton has 6614 states and 9036 transitions. Word has length 104 [2022-12-13 21:09:30,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:09:30,316 INFO L495 AbstractCegarLoop]: Abstraction has 6614 states and 9036 transitions. [2022-12-13 21:09:30,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.666666666666667) internal successors, (80), 9 states have internal predecessors, (80), 3 states have call successors, (11), 2 states have call predecessors, (11), 6 states have return successors, (11), 6 states have call predecessors, (11), 3 states have call successors, (11) [2022-12-13 21:09:30,316 INFO L276 IsEmpty]: Start isEmpty. Operand 6614 states and 9036 transitions. [2022-12-13 21:09:30,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-12-13 21:09:30,317 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:09:30,318 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:09:30,332 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2022-12-13 21:09:30,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:09:30,519 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:09:30,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:09:30,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1396982830, now seen corresponding path program 1 times [2022-12-13 21:09:30,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:09:30,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1793945081] [2022-12-13 21:09:30,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:09:30,523 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:09:30,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:09:30,526 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:09:30,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2022-12-13 21:09:31,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:09:31,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 1011 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 21:09:31,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:09:31,639 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 21:09:31,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:09:31,773 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-12-13 21:09:31,773 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:09:31,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1793945081] [2022-12-13 21:09:31,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1793945081] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:09:31,773 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 21:09:31,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-12-13 21:09:31,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350007779] [2022-12-13 21:09:31,773 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 21:09:31,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 21:09:31,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:09:31,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 21:09:31,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:09:31,774 INFO L87 Difference]: Start difference. First operand 6614 states and 9036 transitions. Second operand has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 21:09:32,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:09:32,700 INFO L93 Difference]: Finished difference Result 13333 states and 18216 transitions. [2022-12-13 21:09:32,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 21:09:32,700 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 111 [2022-12-13 21:09:32,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:09:32,712 INFO L225 Difference]: With dead ends: 13333 [2022-12-13 21:09:32,712 INFO L226 Difference]: Without dead ends: 6731 [2022-12-13 21:09:32,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-12-13 21:09:32,721 INFO L413 NwaCegarLoop]: 545 mSDtfsCounter, 4 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1629 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 21:09:32,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1629 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 21:09:32,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6731 states. [2022-12-13 21:09:33,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6731 to 6731. [2022-12-13 21:09:33,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6731 states, 4938 states have (on average 1.248278655326043) internal successors, (6164), 4950 states have internal predecessors, (6164), 1369 states have call successors, (1369), 376 states have call predecessors, (1369), 423 states have return successors, (1620), 1432 states have call predecessors, (1620), 1365 states have call successors, (1620) [2022-12-13 21:09:33,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6731 states to 6731 states and 9153 transitions. [2022-12-13 21:09:33,338 INFO L78 Accepts]: Start accepts. Automaton has 6731 states and 9153 transitions. Word has length 111 [2022-12-13 21:09:33,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:09:33,338 INFO L495 AbstractCegarLoop]: Abstraction has 6731 states and 9153 transitions. [2022-12-13 21:09:33,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.666666666666666) internal successors, (94), 6 states have internal predecessors, (94), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-12-13 21:09:33,338 INFO L276 IsEmpty]: Start isEmpty. Operand 6731 states and 9153 transitions. [2022-12-13 21:09:33,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-12-13 21:09:33,340 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:09:33,340 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-12-13 21:09:33,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2022-12-13 21:09:33,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:09:33,543 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:09:33,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:09:33,544 INFO L85 PathProgramCache]: Analyzing trace with hash -756764579, now seen corresponding path program 1 times [2022-12-13 21:09:33,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:09:33,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [801459936] [2022-12-13 21:09:33,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:09:33,547 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:09:33,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:09:33,550 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:09:33,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-12-13 21:09:34,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:09:34,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 21:09:34,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:09:34,641 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 21:09:34,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:09:34,641 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:09:34,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [801459936] [2022-12-13 21:09:34,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [801459936] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:09:34,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:09:34,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-12-13 21:09:34,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721675741] [2022-12-13 21:09:34,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:09:34,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 21:09:34,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:09:34,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 21:09:34,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-12-13 21:09:34,643 INFO L87 Difference]: Start difference. First operand 6731 states and 9153 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (15), 5 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 21:09:37,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:09:37,030 INFO L93 Difference]: Finished difference Result 14626 states and 20462 transitions. [2022-12-13 21:09:37,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 21:09:37,031 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (15), 5 states have call predecessors, (15), 2 states have call successors, (15) Word has length 122 [2022-12-13 21:09:37,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:09:37,048 INFO L225 Difference]: With dead ends: 14626 [2022-12-13 21:09:37,048 INFO L226 Difference]: Without dead ends: 9793 [2022-12-13 21:09:37,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-12-13 21:09:37,056 INFO L413 NwaCegarLoop]: 828 mSDtfsCounter, 224 mSDsluCounter, 6347 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 7175 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 21:09:37,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 7175 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 21:09:37,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9793 states. [2022-12-13 21:09:37,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9793 to 6747. [2022-12-13 21:09:37,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6747 states, 4954 states have (on average 1.2474767864352039) internal successors, (6180), 4958 states have internal predecessors, (6180), 1369 states have call successors, (1369), 376 states have call predecessors, (1369), 423 states have return successors, (1620), 1440 states have call predecessors, (1620), 1365 states have call successors, (1620) [2022-12-13 21:09:37,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6747 states to 6747 states and 9169 transitions. [2022-12-13 21:09:37,751 INFO L78 Accepts]: Start accepts. Automaton has 6747 states and 9169 transitions. Word has length 122 [2022-12-13 21:09:37,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:09:37,752 INFO L495 AbstractCegarLoop]: Abstraction has 6747 states and 9169 transitions. [2022-12-13 21:09:37,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 7 states have internal predecessors, (87), 2 states have call successors, (15), 2 states have call predecessors, (15), 5 states have return successors, (15), 5 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 21:09:37,752 INFO L276 IsEmpty]: Start isEmpty. Operand 6747 states and 9169 transitions. [2022-12-13 21:09:37,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-12-13 21:09:37,753 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:09:37,753 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-12-13 21:09:37,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Ended with exit code 0 [2022-12-13 21:09:37,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:09:37,954 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:09:37,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:09:37,955 INFO L85 PathProgramCache]: Analyzing trace with hash -645931029, now seen corresponding path program 1 times [2022-12-13 21:09:37,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:09:37,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [881560324] [2022-12-13 21:09:37,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:09:37,959 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:09:37,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:09:37,961 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:09:37,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2022-12-13 21:09:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:09:38,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 1098 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-13 21:09:38,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:09:38,891 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-12-13 21:09:38,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 21:09:38,891 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:09:38,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [881560324] [2022-12-13 21:09:38,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [881560324] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:09:38,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:09:38,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 21:09:38,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624726119] [2022-12-13 21:09:38,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:09:38,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 21:09:38,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:09:38,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 21:09:38,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 21:09:38,893 INFO L87 Difference]: Start difference. First operand 6747 states and 9169 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 21:09:40,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:09:40,928 INFO L93 Difference]: Finished difference Result 16088 states and 22390 transitions. [2022-12-13 21:09:40,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 21:09:40,930 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 124 [2022-12-13 21:09:40,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:09:40,946 INFO L225 Difference]: With dead ends: 16088 [2022-12-13 21:09:40,946 INFO L226 Difference]: Without dead ends: 9788 [2022-12-13 21:09:40,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 21:09:40,954 INFO L413 NwaCegarLoop]: 819 mSDtfsCounter, 177 mSDsluCounter, 2217 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 3036 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-13 21:09:40,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 3036 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-13 21:09:40,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9788 states. [2022-12-13 21:09:41,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9788 to 6550. [2022-12-13 21:09:41,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6550 states, 4837 states have (on average 1.2460202604920405) internal successors, (6027), 4841 states have internal predecessors, (6027), 1305 states have call successors, (1305), 360 states have call predecessors, (1305), 407 states have return successors, (1544), 1376 states have call predecessors, (1544), 1301 states have call successors, (1544) [2022-12-13 21:09:41,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6550 states to 6550 states and 8876 transitions. [2022-12-13 21:09:41,661 INFO L78 Accepts]: Start accepts. Automaton has 6550 states and 8876 transitions. Word has length 124 [2022-12-13 21:09:41,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:09:41,662 INFO L495 AbstractCegarLoop]: Abstraction has 6550 states and 8876 transitions. [2022-12-13 21:09:41,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-12-13 21:09:41,662 INFO L276 IsEmpty]: Start isEmpty. Operand 6550 states and 8876 transitions. [2022-12-13 21:09:41,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-12-13 21:09:41,663 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:09:41,663 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-12-13 21:09:41,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2022-12-13 21:09:41,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:09:41,865 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:09:41,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:09:41,866 INFO L85 PathProgramCache]: Analyzing trace with hash -61836419, now seen corresponding path program 1 times [2022-12-13 21:09:41,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:09:41,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362506908] [2022-12-13 21:09:41,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:09:41,869 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:09:41,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:09:41,872 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:09:41,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-12-13 21:09:42,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:09:42,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 968 conjuncts, 12 conjunts are in the unsatisfiable core [2022-12-13 21:09:42,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 21:09:43,212 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 21:09:43,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 21:09:44,181 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 21:09:44,181 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 21:09:44,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362506908] [2022-12-13 21:09:44,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [362506908] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 21:09:44,181 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 21:09:44,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 13 [2022-12-13 21:09:44,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268907595] [2022-12-13 21:09:44,181 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 21:09:44,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 21:09:44,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 21:09:44,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 21:09:44,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2022-12-13 21:09:44,182 INFO L87 Difference]: Start difference. First operand 6550 states and 8876 transitions. Second operand has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 10 states have internal predecessors, (98), 3 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (18), 6 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-13 21:09:47,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:09:47,797 INFO L93 Difference]: Finished difference Result 16182 states and 22571 transitions. [2022-12-13 21:09:47,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 21:09:47,799 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 10 states have internal predecessors, (98), 3 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (18), 6 states have call predecessors, (18), 3 states have call successors, (18) Word has length 122 [2022-12-13 21:09:47,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:09:47,816 INFO L225 Difference]: With dead ends: 16182 [2022-12-13 21:09:47,816 INFO L226 Difference]: Without dead ends: 10079 [2022-12-13 21:09:47,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-12-13 21:09:47,826 INFO L413 NwaCegarLoop]: 780 mSDtfsCounter, 237 mSDsluCounter, 6697 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 7477 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-13 21:09:47,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 7477 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-13 21:09:47,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10079 states. [2022-12-13 21:09:48,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10079 to 6538. [2022-12-13 21:09:48,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6538 states, 4825 states have (on average 1.2466321243523315) internal successors, (6015), 4841 states have internal predecessors, (6015), 1305 states have call successors, (1305), 360 states have call predecessors, (1305), 407 states have return successors, (1520), 1364 states have call predecessors, (1520), 1301 states have call successors, (1520) [2022-12-13 21:09:48,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6538 states to 6538 states and 8840 transitions. [2022-12-13 21:09:48,558 INFO L78 Accepts]: Start accepts. Automaton has 6538 states and 8840 transitions. Word has length 122 [2022-12-13 21:09:48,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:09:48,559 INFO L495 AbstractCegarLoop]: Abstraction has 6538 states and 8840 transitions. [2022-12-13 21:09:48,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.538461538461538) internal successors, (98), 10 states have internal predecessors, (98), 3 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (18), 6 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-13 21:09:48,559 INFO L276 IsEmpty]: Start isEmpty. Operand 6538 states and 8840 transitions. [2022-12-13 21:09:48,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-12-13 21:09:48,560 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:09:48,560 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-13 21:09:48,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2022-12-13 21:09:48,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:09:48,761 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 21:09:48,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:09:48,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1117139730, now seen corresponding path program 1 times [2022-12-13 21:09:48,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 21:09:48,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663617411] [2022-12-13 21:09:48,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:09:48,766 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:09:48,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 21:09:48,768 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 21:09:48,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2022-12-13 21:09:56,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:09:56,774 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 21:10:02,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 21:10:03,145 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 21:10:03,145 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 21:10:03,146 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 21:10:03,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2022-12-13 21:10:03,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 21:10:03,354 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:10:03,364 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:10:03,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:10:03 BoogieIcfgContainer [2022-12-13 21:10:03,465 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:10:03,466 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:10:03,466 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:10:03,466 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:10:03,466 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:07:44" (3/4) ... [2022-12-13 21:10:03,468 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 21:10:03,532 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 21:10:03,532 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:10:03,533 INFO L158 Benchmark]: Toolchain (without parser) took 153046.11ms. Allocated memory was 75.5MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 45.7MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 321.7MB. Max. memory is 16.1GB. [2022-12-13 21:10:03,533 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 54.5MB. Free memory is still 32.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:10:03,533 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1494.43ms. Allocated memory was 75.5MB in the beginning and 140.5MB in the end (delta: 65.0MB). Free memory was 45.5MB in the beginning and 60.8MB in the end (delta: -15.2MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. [2022-12-13 21:10:03,533 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.21ms. Allocated memory is still 140.5MB. Free memory was 60.8MB in the beginning and 87.2MB in the end (delta: -26.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 21:10:03,533 INFO L158 Benchmark]: Boogie Preprocessor took 99.00ms. Allocated memory is still 140.5MB. Free memory was 87.2MB in the beginning and 75.8MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 21:10:03,534 INFO L158 Benchmark]: RCFGBuilder took 12593.84ms. Allocated memory was 140.5MB in the beginning and 222.3MB in the end (delta: 81.8MB). Free memory was 75.8MB in the beginning and 152.9MB in the end (delta: -77.1MB). Peak memory consumption was 101.1MB. Max. memory is 16.1GB. [2022-12-13 21:10:03,534 INFO L158 Benchmark]: TraceAbstraction took 138683.84ms. Allocated memory was 222.3MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 152.9MB in the beginning and 1.1GB in the end (delta: -919.3MB). Peak memory consumption was 261.4MB. Max. memory is 16.1GB. [2022-12-13 21:10:03,534 INFO L158 Benchmark]: Witness Printer took 66.96ms. Allocated memory is still 1.4GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 21:10:03,535 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 54.5MB. Free memory is still 32.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1494.43ms. Allocated memory was 75.5MB in the beginning and 140.5MB in the end (delta: 65.0MB). Free memory was 45.5MB in the beginning and 60.8MB in the end (delta: -15.2MB). Peak memory consumption was 54.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.21ms. Allocated memory is still 140.5MB. Free memory was 60.8MB in the beginning and 87.2MB in the end (delta: -26.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.00ms. Allocated memory is still 140.5MB. Free memory was 87.2MB in the beginning and 75.8MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 12593.84ms. Allocated memory was 140.5MB in the beginning and 222.3MB in the end (delta: 81.8MB). Free memory was 75.8MB in the beginning and 152.9MB in the end (delta: -77.1MB). Peak memory consumption was 101.1MB. Max. memory is 16.1GB. * TraceAbstraction took 138683.84ms. Allocated memory was 222.3MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 152.9MB in the beginning and 1.1GB in the end (delta: -919.3MB). Peak memory consumption was 261.4MB. Max. memory is 16.1GB. * Witness Printer took 66.96ms. Allocated memory is still 1.4GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * 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: 6754]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L5149] static struct lock_class_key __key___7 ; [L5150] static struct lock_class_key __key___8 ; [L5290-L5303] static char const __mod_author31[46] __attribute__((__used__, __unused__, __section__(".modinfo"), __aligned__(1))) = { (char const )'a', (char const )'u', (char const )'t', (char const )'h', (char const )'o', (char const )'r', (char const )'=', (char const )'S', (char const )'e', (char const )'b', (char const )'a', (char const )'s', (char const )'t', (char const )'i', (char const )'a', (char const )'n', (char const )' ', (char const )'H', (char const )'a', (char const )'a', (char const )'s', (char const )' ', (char const )'<', (char const )'h', (char const )'a', (char const )'a', (char const )'s', (char const )'@', (char const )'e', (char const )'m', (char const )'s', (char const )'-', (char const )'w', (char const )'u', (char const )'e', (char const )'n', (char const )'s', (char const )'c', (char const )'h', (char const )'e', (char const )'.', (char const )'c', (char const )'o', (char const )'m', (char const )'>', (char const )'\000'}; [L5304-L5323] static char const __mod_description32[70] __attribute__((__used__, __unused__, __section__(".modinfo"), __aligned__(1))) = { (char const )'d', (char const )'e', (char const )'s', (char const )'c', (char const )'r', (char const )'i', (char const )'p', (char const )'t', (char const )'i', (char const )'o', (char const )'n', (char const )'=', (char const )'C', (char const )'A', (char const )'N', (char const )' ', (char const )'d', (char const )'r', (char const )'i', (char const )'v', (char const )'e', (char const )'r', (char const )' ', (char const )'f', (char const )'o', (char const )'r', (char const )' ', (char const )'E', (char const )'M', (char const )'S', (char const )' ', (char const )'D', (char const )'r', (char const )'.', (char const )' ', (char const )'T', (char const )'h', (char const )'o', (char const )'m', (char const )'a', (char const )'s', (char const )' ', (char const )'W', (char const )'u', (char const )'e', (char const )'n', (char const )'s', (char const )'c', (char const )'h', (char const )'e', (char const )' ', (char const )'C', (char const )'A', (char const )'N', (char const )'/', (char const )'U', (char const )'S', (char const )'B', (char const )' ', (char const )'i', (char const )'n', (char const )'t', (char const )'e', (char const )'r', (char const )'f', (char const )'a', (char const )'c', (char const )'e', (char const )'s', (char const )'\000'}; [L5324-L5329] static char const __mod_license33[15] __attribute__((__used__, __unused__, __section__(".modinfo"), __aligned__(1))) = { (char const )'l', (char const )'i', (char const )'c', (char const )'e', (char const )'n', (char const )'s', (char const )'e', (char const )'=', (char const )'G', (char const )'P', (char const )'L', (char const )' ', (char const )'v', (char const )'2', (char const )'\000'}; [L5330-L5332] static struct usb_device_id ems_usb_table[1] = { {(__u16 )3, (__u16 )4822, (__u16 )1092, (unsigned short)0, (unsigned short)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0UL}}; [L6247-L6287] static struct net_device_ops const ems_usb_netdev_ops = {(int (*)(struct net_device *dev ))0, (void (*)(struct net_device *dev ))0, & ems_usb_open, & ems_usb_close, & ems_usb_start_xmit, (u16 (*)(struct net_device *dev , struct sk_buff *skb ))0, (void (*)(struct net_device *dev , int flags ))0, (void (*)(struct net_device *dev ))0, (void (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , void *addr ))0, (int (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , struct ifreq *ifr , int cmd ))0, (int (*)(struct net_device *dev , struct ifmap *map ))0, (int (*)(struct net_device *dev , int new_mtu ))0, (int (*)(struct net_device *dev , struct neigh_parms * ))0, (void (*)(struct net_device *dev ))0, (struct rtnl_link_stats64 *(*)(struct net_device *dev , struct rtnl_link_stats64 *storage ))0, (struct net_device_stats *(*)(struct net_device *dev ))0, (void (*)(struct net_device *dev , struct vlan_group *grp ))0, (void (*)(struct net_device *dev , unsigned short vid ))0, (void (*)(struct net_device *dev , unsigned short vid ))0, (void (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , struct netpoll_info *info ))0, (void (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , int queue , u8 *mac ))0, (int (*)(struct net_device *dev , int queue , u16 vlan , u8 qos ))0, (int (*)(struct net_device *dev , int vf , int rate ))0, (int (*)(struct net_device *dev , int vf , struct ifla_vf_info *ivf ))0, (int (*)(struct net_device *dev , int vf , struct nlattr **port ))0, (int (*)(struct net_device *dev , int vf , struct sk_buff *skb ))0, (int (*)(struct net_device *dev , u8 tc ))0, (int (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev ))0, (int (*)(struct net_device *dev , u16 xid , struct scatterlist *sgl , unsigned int sgc ))0, (int (*)(struct net_device *dev , u16 xid ))0, (int (*)(struct net_device *dev , u16 xid , struct scatterlist *sgl , unsigned int sgc ))0, (int (*)(struct net_device *dev , u64 *wwn , int type ))0, (int (*)(struct net_device *dev , struct sk_buff const *skb , u16 rxq_index , u32 flow_id ))0, (int (*)(struct net_device *dev , struct net_device *slave_dev ))0, (int (*)(struct net_device *dev , struct net_device *slave_dev ))0, (u32 (*)(struct net_device *dev , u32 features ))0, (int (*)(struct net_device *dev , u32 features ))0}; [L6288-L6292] static struct can_bittiming_const ems_usb_bittiming_const = {{(char )'e', (char )'m', (char )'s', (char )'_', (char )'u', (char )'s', (char )'b', (char )'\000', (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0}, (__u32 )1, (__u32 )16, (__u32 )1, (__u32 )8, (__u32 )4, (__u32 )1, (__u32 )64, (__u32 )1}; [L6543-L6561] static struct usb_driver ems_usb_driver = {"ems_usb", & ems_usb_probe, & ems_usb_disconnect, (int (*)(struct usb_interface *intf , unsigned int code , void *buf ))0, (int (*)(struct usb_interface *intf , pm_message_t message ))0, (int (*)(struct usb_interface *intf ))0, (int (*)(struct usb_interface *intf ))0, (int (*)(struct usb_interface *intf ))0, (int (*)(struct usb_interface *intf ))0, (struct usb_device_id const *)(ems_usb_table), {{{{{0U}, 0U, 0U, (void *)0, {(struct lock_class_key *)0, {(struct lock_class *)0, (struct lock_class *)0}, (char const *)0, 0, 0UL}}}}, {(struct list_head *)0, (struct list_head *)0}}, {{(char const *)0, (struct bus_type *)0, (struct module *)0, (char const *)0, (_Bool)0, (struct of_device_id const *)0, (int (*)(struct device *dev ))0, (int (*)(struct device *dev ))0, (void (*)(struct device *dev ))0, (int (*)(struct device *dev , pm_message_t state ))0, (int (*)(struct device *dev ))0, (struct attribute_group const **)0, (struct dev_pm_ops const *)0, (struct driver_private *)0}, 0}, 0U, 0U, 0U}; [L6614] int LDV_IN_INTERRUPT ; [L6615] static int res_ems_usb_open_10 ; [L6616] static int res_ems_usb_close_12 ; [L6617] static int res_ems_usb_probe_16 ; [L6767] int ldv_urb_state = 0; [L6768] int ldv_coherent_state = 0; VAL [__key___7={36:0}, __key___8={37:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6619] struct net_device *var_group1 ; [L6620] struct sk_buff *var_group2 ; [L6621] struct usb_interface *var_group3 ; [L6622] struct usb_device_id const *var_ems_usb_probe_16_p1 ; [L6623] int tmp___7 ; [L6624] int ldv_s_ems_usb_netdev_ops_net_device_ops ; [L6625] int ldv_s_ems_usb_driver_usb_driver ; [L6626] int tmp___8 ; [L6627] int tmp___9 ; [L6630] LDV_IN_INTERRUPT = 1 [L6631] FCALL ldv_initialize() [L6632] CALL, EXPR ems_usb_init() VAL [__key___7={36:0}, __key___8={37:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6565] int err ; [L6569] CALL, EXPR usb_register(& ems_usb_driver) [L5140] int tmp___7 ; [L5143] CALL, EXPR usb_register_driver(driver, & __this_module, "ems_usb") [L7025] return __VERIFIER_nondet_int(); [L5143] RET, EXPR usb_register_driver(driver, & __this_module, "ems_usb") [L5143] tmp___7 = usb_register_driver(driver, & __this_module, "ems_usb") [L5145] return (tmp___7); VAL [\result=0, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, driver={41:0}, driver={41:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0] [L6569] RET, EXPR usb_register(& ems_usb_driver) [L6569] err = usb_register(& ems_usb_driver) [L6571] COND FALSE !(\read(err)) [L6578] return (0); VAL [\result=0, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, err=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6632] RET, EXPR ems_usb_init() VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_init()=0, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6632] tmp___7 = ems_usb_init() [L6634] COND FALSE !(\read(tmp___7)) [L6638] ldv_s_ems_usb_netdev_ops_net_device_ops = 0 [L6639] ldv_s_ems_usb_driver_usb_driver = 0 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0] [L6641] COND TRUE 1 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0] [L6644] tmp___9 = __VERIFIER_nondet_int() [L6646] COND TRUE \read(tmp___9) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___9=-2147483648] [L6655] tmp___8 = __VERIFIER_nondet_int() [L6657] COND FALSE !(tmp___8 == 0) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=-2147483648] [L6660] COND FALSE !(tmp___8 == 1) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=-2147483648] [L6663] COND TRUE tmp___8 == 2 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=-2147483648] [L6704] CALL ems_usb_start_xmit(var_group2, var_group1) [L6048] struct ems_usb *dev ; [L6049] void *tmp___7 ; [L6050] struct ems_tx_urb_context *context ; [L6051] struct net_device_stats *stats ; [L6052] struct can_frame *cf ; [L6053] struct ems_cpc_msg *msg ; [L6054] struct urb *urb ; [L6055] u8 *buf ; [L6056] int i ; [L6057] int err ; [L6058] size_t size ; [L6059] int tmp___8 ; [L6060] void *tmp___9 ; [L6061] unsigned int tmp___10 ; [L6062] int tmp___11 ; [L6063] long tmp___12 ; VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={16:2147483520}, skb={16:2147483520}] [L6066] CALL, EXPR netdev_priv((struct net_device const *)netdev) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, dev={0:-2952}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L4976] return ((void *)((char *)dev + ((sizeof(struct net_device ) + 31UL) & 0x0fffffffffffffe0UL))); VAL [\result={0:-520}, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, dev={0:-2952}, dev={0:-2952}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6066] RET, EXPR netdev_priv((struct net_device const *)netdev) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, netdev={0:-2952}, netdev={0:-2952}, netdev_priv((struct net_device const *)netdev)={0:-520}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={16:2147483520}, skb={16:2147483520}] [L6066] tmp___7 = netdev_priv((struct net_device const *)netdev) [L6067] dev = (struct ems_usb *)tmp___7 [L6068] context = (struct ems_tx_urb_context *)((void *)0) [L6069] stats = & netdev->stats [L6070] EXPR skb->data [L6070] cf = (struct can_frame *)skb->data [L6071] size = 15UL + sizeof(struct cpc_can_msg ) [L6072] CALL, EXPR can_dropped_invalid_skb(netdev, skb) [L5252] struct can_frame const *cf ; [L5253] int tmp___7 ; [L5254] long tmp___8 ; [L5256] EXPR skb->data [L5256] cf = (struct can_frame const *)((struct can_frame *)skb->data) [L5257] EXPR skb->len VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, cf={0:0}, dev={0:-2952}, dev={0:-2952}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={16:2147483520}, skb={16:2147483520}, skb->len=13] [L5257] COND FALSE !((unsigned long )skb->len != sizeof(*cf)) [L5260] EXPR cf->can_dlc VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, cf={0:0}, cf->can_dlc=0, dev={0:-2952}, dev={0:-2952}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={16:2147483520}, skb={16:2147483520}] [L5260] COND FALSE !((int const )cf->can_dlc > 8) [L5263] tmp___7 = 0 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, cf={0:0}, dev={0:-2952}, dev={0:-2952}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={16:2147483520}, skb={16:2147483520}, tmp___7=0] [L5266] tmp___8 = __builtin_expect((long )tmp___7, 0L) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, cf={0:0}, dev={0:-2952}, dev={0:-2952}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={16:2147483520}, skb={16:2147483520}, tmp___7=0, tmp___8=0] [L5268] COND FALSE !(\read(tmp___8)) [L5276] return (0); VAL [\result=0, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, cf={0:0}, dev={0:-2952}, dev={0:-2952}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, skb={16:2147483520}, skb={16:2147483520}, tmp___7=0, tmp___8=0] [L6072] RET, EXPR can_dropped_invalid_skb(netdev, skb) [L6072] tmp___8 = can_dropped_invalid_skb(netdev, skb) [L6074] COND FALSE !(\read(tmp___8)) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, cf={0:0}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={16:2147483520}, skb={16:2147483520}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0] [L6079] CALL, EXPR usb_alloc_urb(0, 32U) VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=32, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6830] void *arbitrary_memory ; [L6831] void *tmp___7 ; VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=32, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6834] COND TRUE 1 VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=32, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6837] CALL, EXPR ldv_undefined_pointer() VAL [\old(ldv_urb_state)=0, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6982] CALL, EXPR ldv_malloc(0UL) VAL [\old(ldv_urb_state)=0, \old(size)=0, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6911] COND FALSE !(__VERIFIER_nondet_bool()) [L6912] return malloc(size); [L6982] RET, EXPR ldv_malloc(0UL) VAL [\old(ldv_urb_state)=0, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_malloc(0UL)={93:0}, ldv_urb_state=0, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6982] return ldv_malloc(0UL); [L6837] RET, EXPR ldv_undefined_pointer() VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=32, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_undefined_pointer()={93:0}, ldv_urb_state=0, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6837] tmp___7 = ldv_undefined_pointer() [L6838] arbitrary_memory = tmp___7 VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=32, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, arbitrary_memory={93:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=0, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7={93:0}] [L6840] COND FALSE !(! arbitrary_memory) [L6844] ldv_urb_state = ldv_urb_state + 1 [L6845] return ((struct urb *)arbitrary_memory); VAL [\old(iso_packets)=0, \old(ldv_urb_state)=0, \old(mem_flags)=32, \result={93:0}, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, arbitrary_memory={93:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, iso_packets=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7={93:0}] [L6079] RET, EXPR usb_alloc_urb(0, 32U) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, cf={0:0}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={16:2147483520}, skb={16:2147483520}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, usb_alloc_urb(0, 32U)={93:0}] [L6079] urb = usb_alloc_urb(0, 32U) [L6081] COND FALSE !(! urb) [L6089] EXPR dev->udev VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, cf={0:0}, context={0:0}, dev={0:-520}, dev->udev={0:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={16:2147483520}, skb={16:2147483520}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, urb={93:0}] [L6089] CALL, EXPR usb_alloc_coherent(dev->udev, size, 32U, & urb->transfer_dma) VAL [\old(ldv_coherent_state)=0, \old(mem_flags)=32, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, dev={0:0}, dma={93:104}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6773] void *arbitrary_memory ; [L6774] void *tmp___7 ; VAL [\old(ldv_coherent_state)=0, \old(mem_flags)=32, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, dev={0:0}, dev={0:0}, dma={93:104}, dma={93:104}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6777] COND TRUE 1 VAL [\old(ldv_coherent_state)=0, \old(mem_flags)=32, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, dev={0:0}, dev={0:0}, dma={93:104}, dma={93:104}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6780] CALL, EXPR ldv_undefined_pointer() VAL [\old(ldv_coherent_state)=0, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6982] CALL, EXPR ldv_malloc(0UL) VAL [\old(ldv_coherent_state)=0, \old(size)=0, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6911] COND FALSE !(__VERIFIER_nondet_bool()) [L6912] return malloc(size); [L6982] RET, EXPR ldv_malloc(0UL) VAL [\old(ldv_coherent_state)=0, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_malloc(0UL)={51:0}, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6982] return ldv_malloc(0UL); [L6780] RET, EXPR ldv_undefined_pointer() VAL [\old(ldv_coherent_state)=0, \old(mem_flags)=32, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, dev={0:0}, dev={0:0}, dma={93:104}, dma={93:104}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_undefined_pointer()={51:0}, ldv_urb_state=1, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6780] tmp___7 = ldv_undefined_pointer() [L6781] arbitrary_memory = tmp___7 VAL [\old(ldv_coherent_state)=0, \old(mem_flags)=32, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, arbitrary_memory={51:0}, dev={0:0}, dev={0:0}, dma={93:104}, dma={93:104}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, tmp___7={51:0}] [L6783] COND FALSE !(! arbitrary_memory) [L6787] ldv_coherent_state = ldv_coherent_state + 1 [L6788] return (arbitrary_memory); VAL [\old(ldv_coherent_state)=0, \old(mem_flags)=32, \old(size)=28, \result={51:0}, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, arbitrary_memory={51:0}, dev={0:0}, dev={0:0}, dma={93:104}, dma={93:104}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, mem_flags=32, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, tmp___7={51:0}] [L6089] RET, EXPR usb_alloc_coherent(dev->udev, size, 32U, & urb->transfer_dma) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, cf={0:0}, context={0:0}, dev={0:-520}, dev->udev={0:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={16:2147483520}, skb={16:2147483520}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, urb={93:0}, usb_alloc_coherent(dev->udev, size, 32U, & urb->transfer_dma)={51:0}] [L6089] tmp___9 = usb_alloc_coherent(dev->udev, size, 32U, & urb->transfer_dma) [L6090] buf = (u8 *)tmp___9 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={16:2147483520}, skb={16:2147483520}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6092] COND FALSE !(! buf) [L6100] msg = (struct ems_cpc_msg *)(buf + 4) [L6101] EXPR cf->can_id [L6101] msg->msg.can_msg.id = cf->can_id & 536870911U [L6102] EXPR cf->can_dlc [L6102] msg->msg.can_msg.length = cf->can_dlc [L6103] EXPR cf->can_id VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, cf->can_id=-1073741824, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={16:2147483520}, skb={16:2147483520}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6103] COND TRUE cf->can_id & 1073741824U [L6104] EXPR cf->can_id VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, cf->can_id=-1073741824, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={16:2147483520}, skb={16:2147483520}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6104] COND TRUE cf->can_id & 2147483648U [L6105] msg->type = (u8 )16 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={16:2147483520}, skb={16:2147483520}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6109] msg->length = (u8 )5 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={16:2147483520}, skb={16:2147483520}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6132] EXPR msg->msg.can_msg.id [L6132] msg->msg.can_msg.id = msg->msg.can_msg.id [L6133] i = 0 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={16:2147483520}, skb={16:2147483520}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6135] COND TRUE 1 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={16:2147483520}, skb={16:2147483520}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6137] COND TRUE i < 10 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={16:2147483520}, skb={16:2147483520}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6141] EXPR dev->tx_contexts[i].echo_index VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, dev->tx_contexts[i].echo_index=10, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={16:2147483520}, skb={16:2147483520}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6141] COND TRUE dev->tx_contexts[i].echo_index == 10U [L6142] context = & dev->tx_contexts[i] VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={16:2147483520}, skb={16:2147483520}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6151] COND TRUE ! context VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={16:2147483520}, skb={16:2147483520}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6153] FCALL usb_unanchor_urb(urb) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={16:2147483520}, skb={16:2147483520}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6154] EXPR dev->udev [L6154] EXPR urb->transfer_dma VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, dev->udev={0:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={16:2147483520}, skb={16:2147483520}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}, urb->transfer_dma=0] [L6154] CALL usb_free_coherent(dev->udev, size, (void *)buf, urb->transfer_dma) VAL [\old(dma)=0, \old(ldv_coherent_state)=1, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, addr={51:0}, dev={0:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6802] COND TRUE 1 VAL [\old(dma)=0, \old(ldv_coherent_state)=1, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, addr={51:0}, addr={51:0}, dev={0:0}, dev={0:0}, dma=0, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6804] COND FALSE !(! ((unsigned long )addr != (unsigned long )((void *)0))) VAL [\old(dma)=0, \old(ldv_coherent_state)=1, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, addr={51:0}, addr={51:0}, dev={0:0}, dev={0:0}, dma=0, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6810] COND TRUE \read(*addr) VAL [\old(dma)=0, \old(ldv_coherent_state)=1, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, addr={51:0}, addr={51:0}, dev={0:0}, dev={0:0}, dma=0, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6811] COND TRUE ldv_coherent_state >= 1 VAL [\old(dma)=0, \old(ldv_coherent_state)=1, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, addr={51:0}, addr={51:0}, dev={0:0}, dev={0:0}, dma=0, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=1, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6817] ldv_coherent_state = ldv_coherent_state - 1 VAL [\old(dma)=0, \old(ldv_coherent_state)=1, \old(size)=28, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, addr={51:0}, addr={51:0}, dev={0:0}, dev={0:0}, dma=0, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28] [L6154] RET usb_free_coherent(dev->udev, size, (void *)buf, urb->transfer_dma) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, dev->udev={0:0}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={16:2147483520}, skb={16:2147483520}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}, urb->transfer_dma=0] [L6155] netdev->dev.parent [L6157] return ((netdev_tx_t )16); VAL [\result=16, __key___7={36:0}, __key___8={37:0}, __this_module={70:71}, buf={51:0}, cf={0:0}, context={0:0}, dev={0:-520}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, i=0, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, msg={51:4}, netdev={0:-2952}, netdev={0:-2952}, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, size=28, skb={16:2147483520}, skb={16:2147483520}, stats={0:-2764}, tmp___7={0:-520}, tmp___8=0, tmp___9={51:0}, urb={93:0}] [L6704] RET ems_usb_start_xmit(var_group2, var_group1) [L6641] COND TRUE 1 VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=-2147483648, var_group1={0:-2952}, var_group2={16:2147483520}] [L6644] tmp___9 = __VERIFIER_nondet_int() [L6646] COND FALSE !(\read(tmp___9)) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=0, var_group1={0:-2952}, var_group2={16:2147483520}] [L6648] COND FALSE !(! (ldv_s_ems_usb_netdev_ops_net_device_ops == 0)) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=0, var_group1={0:-2952}, var_group2={16:2147483520}] [L6650] COND FALSE !(! (ldv_s_ems_usb_driver_usb_driver == 0)) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=0, var_group1={0:-2952}, var_group2={16:2147483520}] [L6742] CALL ems_usb_exit() VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6587] FCALL usb_deregister(& ems_usb_driver) [L6742] RET ems_usb_exit() VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_s_ems_usb_driver_usb_driver=0, ldv_s_ems_usb_netdev_ops_net_device_ops=0, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0, tmp___7=0, tmp___8=2, tmp___9=0, var_group1={0:-2952}, var_group2={16:2147483520}] [L6746] CALL ldv_check_final_state() [L6889] COND FALSE !(ldv_urb_state == 0) VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6892] CALL ldv_blast_assert() VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] [L6754] reach_error() VAL [__key___7={36:0}, __key___8={37:0}, __this_module={70:71}, ems_usb_bittiming_const={40:0}, ems_usb_driver={41:0}, ems_usb_netdev_ops={39:0}, ems_usb_table={38:0}, ldv_coherent_state=0, LDV_IN_INTERRUPT=1, ldv_urb_state=1, res_ems_usb_close_12=0, res_ems_usb_open_10=0, res_ems_usb_probe_16=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 432 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 138.5s, OverallIterations: 29, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 79.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 mSolverCounterUnknown, 8223 SdHoareTripleChecker+Valid, 64.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7153 mSDsluCounter, 99274 SdHoareTripleChecker+Invalid, 61.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 79153 mSDsCounter, 999 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4846 IncrementalHoareTripleChecker+Invalid, 5856 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 999 mSolverCounterUnsat, 20121 mSDtfsCounter, 4846 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2923 GetRequests, 2775 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6747occurred in iteration=26, InterpolantAutomatonStates: 182, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 10.8s AutomataMinimizationTime, 28 MinimizatonAttempts, 29494 StatesRemovedByMinimization, 22 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 16.7s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 2523 NumberOfCodeBlocks, 2523 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 2895 ConstructedInterpolants, 0 QuantifiedInterpolants, 4246 SizeOfPredicates, 46 NumberOfNonLiveVariables, 23339 ConjunctsInSsa, 194 ConjunctsInUnsatCore, 33 InterpolantComputations, 24 PerfectInterpolantSequences, 300/334 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! [2022-12-13 21:10:03,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bdb4c1aa-3ee8-483b-941e-ba96daf61eb3/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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