./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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cef3164-0089-4ba5-b14a-b5e2bf49c4a8/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cef3164-0089-4ba5-b14a-b5e2bf49c4a8/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cef3164-0089-4ba5-b14a-b5e2bf49c4a8/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cef3164-0089-4ba5-b14a-b5e2bf49c4a8/bin/utaipan-gh47qXpMRh/config/TaipanReach.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_4cef3164-0089-4ba5-b14a-b5e2bf49c4a8/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cef3164-0089-4ba5-b14a-b5e2bf49c4a8/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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 [2022-12-14 07:47:23,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 07:47:23,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 07:47:23,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 07:47:23,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 07:47:23,370 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 07:47:23,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 07:47:23,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 07:47:23,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 07:47:23,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 07:47:23,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 07:47:23,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 07:47:23,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 07:47:23,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 07:47:23,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 07:47:23,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 07:47:23,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 07:47:23,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 07:47:23,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 07:47:23,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 07:47:23,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 07:47:23,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 07:47:23,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 07:47:23,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 07:47:23,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 07:47:23,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 07:47:23,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 07:47:23,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 07:47:23,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 07:47:23,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 07:47:23,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 07:47:23,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 07:47:23,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 07:47:23,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 07:47:23,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 07:47:23,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 07:47:23,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 07:47:23,404 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 07:47:23,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 07:47:23,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 07:47:23,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 07:47:23,406 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cef3164-0089-4ba5-b14a-b5e2bf49c4a8/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 07:47:23,439 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 07:47:23,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 07:47:23,439 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 07:47:23,440 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 07:47:23,440 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 07:47:23,440 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 07:47:23,441 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 07:47:23,441 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 07:47:23,441 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 07:47:23,441 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 07:47:23,441 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 07:47:23,441 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 07:47:23,441 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 07:47:23,442 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 07:47:23,442 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 07:47:23,442 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 07:47:23,442 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 07:47:23,442 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 07:47:23,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 07:47:23,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 07:47:23,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 07:47:23,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 07:47:23,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 07:47:23,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 07:47:23,462 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 07:47:23,462 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 07:47:23,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 07:47:23,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 07:47:23,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 07:47:23,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:47:23,463 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 07:47:23,463 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 07:47:23,463 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 07:47:23,463 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 07:47:23,463 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 07:47:23,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 07:47:23,464 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 07:47:23,464 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 07:47:23,464 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cef3164-0089-4ba5-b14a-b5e2bf49c4a8/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cef3164-0089-4ba5-b14a-b5e2bf49c4a8/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01d4ebb86f2bde0df0d47bbd5d9b632b620f2501e68770553e85fb2bb5a7d15a [2022-12-14 07:47:23,652 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 07:47:23,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 07:47:23,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 07:47:23,673 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 07:47:23,673 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 07:47:23,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cef3164-0089-4ba5-b14a-b5e2bf49c4a8/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2022-12-14 07:47:26,278 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 07:47:26,572 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 07:47:26,572 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cef3164-0089-4ba5-b14a-b5e2bf49c4a8/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2022-12-14 07:47:26,589 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cef3164-0089-4ba5-b14a-b5e2bf49c4a8/bin/utaipan-gh47qXpMRh/data/12b3126ae/2fc10c8db0774ce5813db6dc607e6f56/FLAGeac521c27 [2022-12-14 07:47:26,858 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cef3164-0089-4ba5-b14a-b5e2bf49c4a8/bin/utaipan-gh47qXpMRh/data/12b3126ae/2fc10c8db0774ce5813db6dc607e6f56 [2022-12-14 07:47:26,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 07:47:26,866 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 07:47:26,868 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 07:47:26,868 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 07:47:26,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 07:47:26,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:47:26" (1/1) ... [2022-12-14 07:47:26,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a388423 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:26, skipping insertion in model container [2022-12-14 07:47:26,875 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:47:26" (1/1) ... [2022-12-14 07:47:26,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 07:47:26,947 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 07:47:27,364 WARN L623 FunctionHandler]: Unknown extern function __kmalloc [2022-12-14 07:47:27,463 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 07:47:27,464 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 07:47:27,476 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 07:47:27,477 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:47:27,521 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 07:47:27,528 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-14 07:47:27,545 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 07:47:27,557 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 07:47:27,559 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 07:47:27,638 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 07:47:27,713 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:47:27,714 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 07:47:27,714 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 07:47:27,714 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:27,721 WARN L623 FunctionHandler]: Unknown extern function alloc_can_skb [2022-12-14 07:47:27,725 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 07:47:27,732 WARN L623 FunctionHandler]: Unknown extern function alloc_can_err_skb [2022-12-14 07:47:27,733 WARN L623 FunctionHandler]: Unknown extern function can_bus_off [2022-12-14 07:47:27,741 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 07:47:27,748 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:47:27,752 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:27,754 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 07:47:27,754 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 07:47:27,754 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:27,762 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:47:27,764 WARN L623 FunctionHandler]: Unknown extern function can_get_echo_skb [2022-12-14 07:47:27,776 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-14 07:47:27,795 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:27,796 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:27,798 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-14 07:47:27,798 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 07:47:27,798 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 07:47:27,799 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-14 07:47:27,799 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:47:27,800 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:47:27,801 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 07:47:27,802 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 07:47:27,802 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:47:27,803 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 07:47:27,804 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:47:27,808 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-12-14 07:47:27,809 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-12-14 07:47:27,809 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-12-14 07:47:27,814 WARN L623 FunctionHandler]: Unknown extern function open_candev [2022-12-14 07:47:27,815 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 07:47:27,815 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:47:27,815 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-12-14 07:47:27,821 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:27,822 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:27,825 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-14 07:47:27,826 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:47:27,827 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-14 07:47:27,828 WARN L623 FunctionHandler]: Unknown extern function can_put_echo_skb [2022-12-14 07:47:27,828 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 07:47:27,828 WARN L623 FunctionHandler]: Unknown extern function can_free_echo_skb [2022-12-14 07:47:27,829 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-14 07:47:27,829 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 07:47:27,829 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 07:47:27,830 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:47:27,831 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 07:47:27,836 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:47:27,836 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-12-14 07:47:27,843 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:47:27,849 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:47:27,858 WARN L623 FunctionHandler]: Unknown extern function alloc_candev [2022-12-14 07:47:27,859 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:27,861 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:27,862 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:27,862 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:27,863 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:27,864 WARN L623 FunctionHandler]: Unknown extern function register_candev [2022-12-14 07:47:27,864 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:27,865 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:47:27,865 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:47:27,865 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-12-14 07:47:27,869 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 07:47:27,870 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-12-14 07:47:27,870 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:47:27,875 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:47:27,876 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:47:27,880 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 07:47:27,897 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 07:47:27,899 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-14 07:47:27,899 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-14 07:47:27,900 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-14 07:47:27,905 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_4cef3164-0089-4ba5-b14a-b5e2bf49c4a8/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i[191320,191333] [2022-12-14 07:47:27,916 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-12-14 07:47:27,917 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-12-14 07:47:27,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:47:27,965 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 07:47:28,037 WARN L623 FunctionHandler]: Unknown extern function __kmalloc [2022-12-14 07:47:28,040 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 07:47:28,040 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 07:47:28,041 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 07:47:28,041 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:47:28,043 WARN L623 FunctionHandler]: Unknown extern function dev_get_drvdata [2022-12-14 07:47:28,043 WARN L623 FunctionHandler]: Unknown extern function dev_set_drvdata [2022-12-14 07:47:28,046 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 07:47:28,047 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 07:47:28,048 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 07:47:28,053 WARN L623 FunctionHandler]: Unknown extern function kfree_skb [2022-12-14 07:47:28,077 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:47:28,078 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 07:47:28,079 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 07:47:28,079 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:28,081 WARN L623 FunctionHandler]: Unknown extern function alloc_can_skb [2022-12-14 07:47:28,082 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 07:47:28,083 WARN L623 FunctionHandler]: Unknown extern function alloc_can_err_skb [2022-12-14 07:47:28,084 WARN L623 FunctionHandler]: Unknown extern function can_bus_off [2022-12-14 07:47:28,086 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-12-14 07:47:28,087 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:47:28,090 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:28,091 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 07:47:28,091 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 07:47:28,091 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:28,095 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:47:28,096 WARN L623 FunctionHandler]: Unknown extern function can_get_echo_skb [2022-12-14 07:47:28,097 WARN L623 FunctionHandler]: Unknown extern function usb_bulk_msg [2022-12-14 07:47:28,099 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:28,100 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:28,101 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-14 07:47:28,101 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 07:47:28,101 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 07:47:28,101 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-14 07:47:28,102 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:47:28,103 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:47:28,104 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 07:47:28,104 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 07:47:28,104 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:47:28,105 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 07:47:28,106 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:47:28,107 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-12-14 07:47:28,107 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-12-14 07:47:28,107 WARN L623 FunctionHandler]: Unknown extern function usb_kill_anchored_urbs [2022-12-14 07:47:28,108 WARN L623 FunctionHandler]: Unknown extern function open_candev [2022-12-14 07:47:28,108 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 07:47:28,108 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:47:28,109 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-12-14 07:47:28,110 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:28,111 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:28,113 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-14 07:47:28,113 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:47:28,116 WARN L623 FunctionHandler]: Unknown extern function usb_anchor_urb [2022-12-14 07:47:28,117 WARN L623 FunctionHandler]: Unknown extern function can_put_echo_skb [2022-12-14 07:47:28,117 WARN L623 FunctionHandler]: Unknown extern function usb_submit_urb [2022-12-14 07:47:28,117 WARN L623 FunctionHandler]: Unknown extern function can_free_echo_skb [2022-12-14 07:47:28,117 WARN L623 FunctionHandler]: Unknown extern function usb_unanchor_urb [2022-12-14 07:47:28,118 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 07:47:28,118 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-12-14 07:47:28,118 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:47:28,119 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 07:47:28,120 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:47:28,121 WARN L623 FunctionHandler]: Unknown extern function close_candev [2022-12-14 07:47:28,122 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-12-14 07:47:28,124 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-12-14 07:47:28,126 WARN L623 FunctionHandler]: Unknown extern function alloc_candev [2022-12-14 07:47:28,126 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:28,128 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:28,128 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:28,128 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:28,129 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:28,130 WARN L623 FunctionHandler]: Unknown extern function register_candev [2022-12-14 07:47:28,130 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-12-14 07:47:28,131 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:47:28,131 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:47:28,132 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-12-14 07:47:28,132 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-12-14 07:47:28,132 WARN L623 FunctionHandler]: Unknown extern function free_candev [2022-12-14 07:47:28,132 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 07:47:28,133 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:47:28,134 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 07:47:28,134 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 07:47:28,135 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 07:47:28,135 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-14 07:47:28,136 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-14 07:47:28,136 WARN L623 FunctionHandler]: Unknown extern function ldv_check_return_value [2022-12-14 07:47:28,137 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_4cef3164-0089-4ba5-b14a-b5e2bf49c4a8/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i[191320,191333] [2022-12-14 07:47:28,137 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-12-14 07:47:28,138 WARN L623 FunctionHandler]: Unknown extern function ldv_undefined_pointer [2022-12-14 07:47:28,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 07:47:28,249 INFO L208 MainTranslator]: Completed translation [2022-12-14 07:47:28,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:28 WrapperNode [2022-12-14 07:47:28,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 07:47:28,250 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 07:47:28,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 07:47:28,250 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 07:47:28,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:28" (1/1) ... [2022-12-14 07:47:28,278 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:28" (1/1) ... [2022-12-14 07:47:28,315 INFO L138 Inliner]: procedures = 133, calls = 749, calls flagged for inlining = 54, calls inlined = 44, statements flattened = 1391 [2022-12-14 07:47:28,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 07:47:28,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 07:47:28,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 07:47:28,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 07:47:28,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:28" (1/1) ... [2022-12-14 07:47:28,323 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:28" (1/1) ... [2022-12-14 07:47:28,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:28" (1/1) ... [2022-12-14 07:47:28,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:28" (1/1) ... [2022-12-14 07:47:28,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:28" (1/1) ... [2022-12-14 07:47:28,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:28" (1/1) ... [2022-12-14 07:47:28,367 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:28" (1/1) ... [2022-12-14 07:47:28,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:28" (1/1) ... [2022-12-14 07:47:28,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 07:47:28,379 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 07:47:28,379 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 07:47:28,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 07:47:28,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:28" (1/1) ... [2022-12-14 07:47:28,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 07:47:28,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cef3164-0089-4ba5-b14a-b5e2bf49c4a8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:47:28,401 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cef3164-0089-4ba5-b14a-b5e2bf49c4a8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 07:47:28,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cef3164-0089-4ba5-b14a-b5e2bf49c4a8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 07:47:28,431 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-12-14 07:47:28,431 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-12-14 07:47:28,431 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_init [2022-12-14 07:47:28,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_init [2022-12-14 07:47:28,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 07:47:28,432 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-12-14 07:47:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-12-14 07:47:28,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 07:47:28,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 07:47:28,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 07:47:28,432 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-12-14 07:47:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-12-14 07:47:28,432 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_control_cmd [2022-12-14 07:47:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_control_cmd [2022-12-14 07:47:28,432 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-12-14 07:47:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-12-14 07:47:28,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 07:47:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 07:47:28,432 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_exit [2022-12-14 07:47:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_exit [2022-12-14 07:47:28,432 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2022-12-14 07:47:28,432 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2022-12-14 07:47:28,432 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 07:47:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 07:47:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2022-12-14 07:47:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2022-12-14 07:47:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 07:47:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-12-14 07:47:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-12-14 07:47:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2022-12-14 07:47:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2022-12-14 07:47:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-12-14 07:47:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-12-14 07:47:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-12-14 07:47:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-12-14 07:47:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_command_msg [2022-12-14 07:47:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_command_msg [2022-12-14 07:47:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 07:47:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2022-12-14 07:47:28,433 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2022-12-14 07:47:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 07:47:28,433 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-12-14 07:47:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-12-14 07:47:28,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 07:47:28,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 07:47:28,434 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_write_mode [2022-12-14 07:47:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_write_mode [2022-12-14 07:47:28,434 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-12-14 07:47:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-12-14 07:47:28,434 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-12-14 07:47:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-12-14 07:47:28,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 07:47:28,434 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-12-14 07:47:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-12-14 07:47:28,434 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-12-14 07:47:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-12-14 07:47:28,434 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-12-14 07:47:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-12-14 07:47:28,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-12-14 07:47:28,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-12-14 07:47:28,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 07:47:28,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 07:47:28,435 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-12-14 07:47:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-12-14 07:47:28,435 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-12-14 07:47:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-12-14 07:47:28,435 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-12-14 07:47:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-12-14 07:47:28,435 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-12-14 07:47:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-12-14 07:47:28,435 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-12-14 07:47:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-12-14 07:47:28,435 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 07:47:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 07:47:28,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2022-12-14 07:47:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2022-12-14 07:47:28,435 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2022-12-14 07:47:28,435 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2022-12-14 07:47:28,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 07:47:28,436 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2022-12-14 07:47:28,436 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2022-12-14 07:47:28,436 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-12-14 07:47:28,436 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-12-14 07:47:28,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 07:47:28,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 07:47:28,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 07:47:28,698 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 07:47:28,700 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 07:47:28,944 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2022-12-14 07:47:29,101 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-12-14 07:47:30,763 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !false; [2022-12-14 07:47:30,763 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume false; [2022-12-14 07:47:30,790 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 07:47:31,020 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 07:47:31,020 INFO L300 CfgBuilder]: Removed 13 assume(true) statements. [2022-12-14 07:47:31,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:47:31 BoogieIcfgContainer [2022-12-14 07:47:31,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 07:47:31,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 07:47:31,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 07:47:31,029 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 07:47:31,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:47:26" (1/3) ... [2022-12-14 07:47:31,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@579a9269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:47:31, skipping insertion in model container [2022-12-14 07:47:31,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:47:28" (2/3) ... [2022-12-14 07:47:31,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@579a9269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:47:31, skipping insertion in model container [2022-12-14 07:47:31,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:47:31" (3/3) ... [2022-12-14 07:47:31,032 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2022-12-14 07:47:31,048 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 07:47:31,049 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 07:47:31,104 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 07:47:31,111 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4ad9c4b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 07:47:31,111 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 07:47:31,117 INFO L276 IsEmpty]: Start isEmpty. Operand has 327 states, 200 states have (on average 1.38) internal successors, (276), 212 states have internal predecessors, (276), 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) [2022-12-14 07:47:31,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 07:47:31,124 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:47:31,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:47:31,125 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:47:31,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:47:31,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1261541614, now seen corresponding path program 1 times [2022-12-14 07:47:31,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:47:31,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516386834] [2022-12-14 07:47:31,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:47:31,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:47:31,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:47:31,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:47:31,478 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:47:31,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516386834] [2022-12-14 07:47:31,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516386834] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:47:31,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:47:31,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:47:31,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498635995] [2022-12-14 07:47:31,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:47:31,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:47:31,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:47:31,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:47:31,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:47:31,508 INFO L87 Difference]: Start difference. First operand has 327 states, 200 states have (on average 1.38) internal successors, (276), 212 states have internal predecessors, (276), 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 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-12-14 07:47:35,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:47:35,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:47:35,218 INFO L93 Difference]: Finished difference Result 836 states and 1187 transitions. [2022-12-14 07:47:35,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:47:35,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 10 [2022-12-14 07:47:35,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:47:35,228 INFO L225 Difference]: With dead ends: 836 [2022-12-14 07:47:35,228 INFO L226 Difference]: Without dead ends: 508 [2022-12-14 07:47:35,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:47:35,233 INFO L413 NwaCegarLoop]: 439 mSDtfsCounter, 252 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-12-14 07:47:35,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 810 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 123 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-12-14 07:47:35,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2022-12-14 07:47:35,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 504. [2022-12-14 07:47:35,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 311 states have (on average 1.3183279742765273) internal successors, (410), 322 states have internal predecessors, (410), 136 states have call successors, (136), 58 states have call predecessors, (136), 56 states have return successors, (132), 126 states have call predecessors, (132), 132 states have call successors, (132) [2022-12-14 07:47:35,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 678 transitions. [2022-12-14 07:47:35,291 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 678 transitions. Word has length 10 [2022-12-14 07:47:35,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:47:35,291 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 678 transitions. [2022-12-14 07:47:35,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-12-14 07:47:35,291 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 678 transitions. [2022-12-14 07:47:35,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 07:47:35,292 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:47:35,292 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 07:47:35,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 07:47:35,292 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:47:35,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:47:35,293 INFO L85 PathProgramCache]: Analyzing trace with hash -453312672, now seen corresponding path program 1 times [2022-12-14 07:47:35,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:47:35,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579210088] [2022-12-14 07:47:35,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:47:35,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:47:35,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:47:35,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 07:47:35,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:47:35,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579210088] [2022-12-14 07:47:35,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579210088] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:47:35,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:47:35,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:47:35,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16647771] [2022-12-14 07:47:35,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:47:35,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:47:35,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:47:35,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:47:35,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:47:35,426 INFO L87 Difference]: Start difference. First operand 504 states and 678 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-12-14 07:47:38,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:47:38,762 INFO L93 Difference]: Finished difference Result 742 states and 994 transitions. [2022-12-14 07:47:38,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:47:38,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 11 [2022-12-14 07:47:38,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:47:38,766 INFO L225 Difference]: With dead ends: 742 [2022-12-14 07:47:38,766 INFO L226 Difference]: Without dead ends: 733 [2022-12-14 07:47:38,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:47:38,767 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 311 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 311 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-12-14 07:47:38,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [311 Valid, 819 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-12-14 07:47:38,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2022-12-14 07:47:38,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 728. [2022-12-14 07:47:38,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 451 states have (on average 1.3082039911308203) internal successors, (590), 463 states have internal predecessors, (590), 195 states have call successors, (195), 84 states have call predecessors, (195), 81 states have return successors, (191), 182 states have call predecessors, (191), 191 states have call successors, (191) [2022-12-14 07:47:38,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 976 transitions. [2022-12-14 07:47:38,805 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 976 transitions. Word has length 11 [2022-12-14 07:47:38,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:47:38,805 INFO L495 AbstractCegarLoop]: Abstraction has 728 states and 976 transitions. [2022-12-14 07:47:38,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-12-14 07:47:38,805 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 976 transitions. [2022-12-14 07:47:38,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-12-14 07:47:38,807 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:47:38,807 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 07:47:38,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 07:47:38,808 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:47:38,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:47:38,808 INFO L85 PathProgramCache]: Analyzing trace with hash 278625922, now seen corresponding path program 1 times [2022-12-14 07:47:38,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:47:38,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788838204] [2022-12-14 07:47:38,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:47:38,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:47:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:47:38,961 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 07:47:38,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:47:38,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788838204] [2022-12-14 07:47:38,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788838204] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:47:38,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:47:38,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:47:38,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386618389] [2022-12-14 07:47:38,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:47:38,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:47:38,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:47:38,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:47:38,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:47:38,964 INFO L87 Difference]: Start difference. First operand 728 states and 976 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-14 07:47:40,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:47:40,930 INFO L93 Difference]: Finished difference Result 1772 states and 2471 transitions. [2022-12-14 07:47:40,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:47:40,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 2 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 52 [2022-12-14 07:47:40,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:47:40,936 INFO L225 Difference]: With dead ends: 1772 [2022-12-14 07:47:40,936 INFO L226 Difference]: Without dead ends: 1049 [2022-12-14 07:47:40,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:47:40,939 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 164 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-12-14 07:47:40,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 757 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-12-14 07:47:40,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2022-12-14 07:47:40,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 1040. [2022-12-14 07:47:40,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1040 states, 661 states have (on average 1.3449319213313162) internal successors, (889), 681 states have internal predecessors, (889), 297 states have call successors, (297), 84 states have call predecessors, (297), 81 states have return successors, (293), 278 states have call predecessors, (293), 293 states have call successors, (293) [2022-12-14 07:47:40,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 1479 transitions. [2022-12-14 07:47:40,982 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 1479 transitions. Word has length 52 [2022-12-14 07:47:40,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:47:40,982 INFO L495 AbstractCegarLoop]: Abstraction has 1040 states and 1479 transitions. [2022-12-14 07:47:40,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-14 07:47:40,982 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 1479 transitions. [2022-12-14 07:47:40,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-12-14 07:47:40,984 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:47:40,984 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 07:47:40,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 07:47:40,984 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:47:40,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:47:40,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1897192403, now seen corresponding path program 1 times [2022-12-14 07:47:40,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:47:40,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722405432] [2022-12-14 07:47:40,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:47:40,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:47:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:47:41,722 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 07:47:41,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:47:41,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722405432] [2022-12-14 07:47:41,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722405432] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:47:41,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:47:41,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-12-14 07:47:41,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243216484] [2022-12-14 07:47:41,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:47:41,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 07:47:41,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:47:41,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 07:47:41,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-12-14 07:47:41,724 INFO L87 Difference]: Start difference. First operand 1040 states and 1479 transitions. Second operand has 11 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-14 07:47:52,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:47:57,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:48:01,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:48:01,248 INFO L93 Difference]: Finished difference Result 2364 states and 3436 transitions. [2022-12-14 07:48:01,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-14 07:48:01,248 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (8), 3 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 47 [2022-12-14 07:48:01,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:48:01,253 INFO L225 Difference]: With dead ends: 2364 [2022-12-14 07:48:01,253 INFO L226 Difference]: Without dead ends: 1580 [2022-12-14 07:48:01,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-12-14 07:48:01,256 INFO L413 NwaCegarLoop]: 446 mSDtfsCounter, 442 mSDsluCounter, 2690 mSDsCounter, 0 mSdLazyCounter, 2399 mSolverCounterSat, 82 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 3136 SdHoareTripleChecker+Invalid, 2482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 2399 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2022-12-14 07:48:01,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 3136 Invalid, 2482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 2399 Invalid, 1 Unknown, 0 Unchecked, 19.3s Time] [2022-12-14 07:48:01,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2022-12-14 07:48:01,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1050. [2022-12-14 07:48:01,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 668 states have (on average 1.344311377245509) internal successors, (898), 686 states have internal predecessors, (898), 299 states have call successors, (299), 85 states have call predecessors, (299), 82 states have return successors, (295), 282 states have call predecessors, (295), 295 states have call successors, (295) [2022-12-14 07:48:01,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1492 transitions. [2022-12-14 07:48:01,301 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1492 transitions. Word has length 47 [2022-12-14 07:48:01,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:48:01,301 INFO L495 AbstractCegarLoop]: Abstraction has 1050 states and 1492 transitions. [2022-12-14 07:48:01,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-14 07:48:01,302 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1492 transitions. [2022-12-14 07:48:01,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-12-14 07:48:01,303 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:48:01,303 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 07:48:01,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 07:48:01,304 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:48:01,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:48:01,304 INFO L85 PathProgramCache]: Analyzing trace with hash -1596911463, now seen corresponding path program 1 times [2022-12-14 07:48:01,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:48:01,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509820361] [2022-12-14 07:48:01,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:48:01,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:48:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:48:01,739 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 07:48:01,739 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:48:01,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509820361] [2022-12-14 07:48:01,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509820361] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:48:01,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:48:01,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 07:48:01,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305647921] [2022-12-14 07:48:01,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:48:01,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 07:48:01,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:48:01,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 07:48:01,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 07:48:01,741 INFO L87 Difference]: Start difference. First operand 1050 states and 1492 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 5 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2022-12-14 07:48:16,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:48:21,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:48:22,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:48:22,725 INFO L93 Difference]: Finished difference Result 2328 states and 3431 transitions. [2022-12-14 07:48:22,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 07:48:22,725 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 5 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 53 [2022-12-14 07:48:22,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:48:22,732 INFO L225 Difference]: With dead ends: 2328 [2022-12-14 07:48:22,732 INFO L226 Difference]: Without dead ends: 2323 [2022-12-14 07:48:22,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-14 07:48:22,733 INFO L413 NwaCegarLoop]: 724 mSDtfsCounter, 1114 mSDsluCounter, 1601 mSDsCounter, 0 mSdLazyCounter, 2214 mSolverCounterSat, 477 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1220 SdHoareTripleChecker+Valid, 2325 SdHoareTripleChecker+Invalid, 2691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 477 IncrementalHoareTripleChecker+Valid, 2214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:48:22,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1220 Valid, 2325 Invalid, 2691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [477 Valid, 2214 Invalid, 0 Unknown, 0 Unchecked, 20.8s Time] [2022-12-14 07:48:22,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2323 states. [2022-12-14 07:48:22,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2323 to 1769. [2022-12-14 07:48:22,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1769 states, 1123 states have (on average 1.3437221727515583) internal successors, (1509), 1155 states have internal predecessors, (1509), 507 states have call successors, (507), 142 states have call predecessors, (507), 138 states have return successors, (523), 479 states have call predecessors, (523), 503 states have call successors, (523) [2022-12-14 07:48:22,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1769 states to 1769 states and 2539 transitions. [2022-12-14 07:48:22,845 INFO L78 Accepts]: Start accepts. Automaton has 1769 states and 2539 transitions. Word has length 53 [2022-12-14 07:48:22,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:48:22,846 INFO L495 AbstractCegarLoop]: Abstraction has 1769 states and 2539 transitions. [2022-12-14 07:48:22,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 5 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2022-12-14 07:48:22,846 INFO L276 IsEmpty]: Start isEmpty. Operand 1769 states and 2539 transitions. [2022-12-14 07:48:22,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-12-14 07:48:22,849 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:48:22,849 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] [2022-12-14 07:48:22,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 07:48:22,850 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:48:22,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:48:22,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1411660978, now seen corresponding path program 1 times [2022-12-14 07:48:22,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:48:22,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316688852] [2022-12-14 07:48:22,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:48:22,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:48:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:48:23,033 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 07:48:23,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:48:23,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316688852] [2022-12-14 07:48:23,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316688852] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 07:48:23,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 07:48:23,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 07:48:23,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542342564] [2022-12-14 07:48:23,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 07:48:23,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 07:48:23,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 07:48:23,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 07:48:23,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:48:23,035 INFO L87 Difference]: Start difference. First operand 1769 states and 2539 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 07:48:25,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 07:48:25,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 07:48:25,959 INFO L93 Difference]: Finished difference Result 3025 states and 4359 transitions. [2022-12-14 07:48:25,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 07:48:25,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 65 [2022-12-14 07:48:25,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 07:48:25,965 INFO L225 Difference]: With dead ends: 3025 [2022-12-14 07:48:25,965 INFO L226 Difference]: Without dead ends: 1779 [2022-12-14 07:48:25,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 07:48:25,968 INFO L413 NwaCegarLoop]: 374 mSDtfsCounter, 0 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-12-14 07:48:25,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 745 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-12-14 07:48:25,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1779 states. [2022-12-14 07:48:26,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1779 to 1779. [2022-12-14 07:48:26,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1779 states, 1133 states have (on average 1.3406884377758164) internal successors, (1519), 1165 states have internal predecessors, (1519), 507 states have call successors, (507), 142 states have call predecessors, (507), 138 states have return successors, (523), 479 states have call predecessors, (523), 503 states have call successors, (523) [2022-12-14 07:48:26,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1779 states to 1779 states and 2549 transitions. [2022-12-14 07:48:26,036 INFO L78 Accepts]: Start accepts. Automaton has 1779 states and 2549 transitions. Word has length 65 [2022-12-14 07:48:26,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 07:48:26,037 INFO L495 AbstractCegarLoop]: Abstraction has 1779 states and 2549 transitions. [2022-12-14 07:48:26,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-12-14 07:48:26,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1779 states and 2549 transitions. [2022-12-14 07:48:26,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-12-14 07:48:26,038 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 07:48:26,038 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 07:48:26,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 07:48:26,039 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 07:48:26,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 07:48:26,039 INFO L85 PathProgramCache]: Analyzing trace with hash 811856466, now seen corresponding path program 1 times [2022-12-14 07:48:26,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 07:48:26,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184114974] [2022-12-14 07:48:26,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:48:26,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 07:48:26,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:48:26,185 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 07:48:26,185 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 07:48:26,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184114974] [2022-12-14 07:48:26,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184114974] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 07:48:26,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030228786] [2022-12-14 07:48:26,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 07:48:26,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 07:48:26,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cef3164-0089-4ba5-b14a-b5e2bf49c4a8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 07:48:26,187 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cef3164-0089-4ba5-b14a-b5e2bf49c4a8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 07:48:26,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cef3164-0089-4ba5-b14a-b5e2bf49c4a8/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 07:48:26,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 07:48:26,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 1549 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-14 07:48:26,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 07:48:26,586 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 07:48:26,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 07:48:26,656 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 07:48:26,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030228786] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 07:48:26,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [32421818] [2022-12-14 07:48:26,676 INFO L159 IcfgInterpreter]: Started Sifa with 62 locations of interest [2022-12-14 07:48:26,676 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 07:48:26,680 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 07:48:26,685 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 07:48:26,685 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 07:48:27,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 196 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 76 [2022-12-14 07:48:27,534 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2866 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 351 [2022-12-14 07:48:27,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1308 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 141 treesize of output 231 [2022-12-14 07:48:43,577 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 07:48:43,582 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 07:49:43,952 INFO L321 Elim1Store]: treesize reduction 97, result has 21.1 percent of original size [2022-12-14 07:49:43,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 48 [2022-12-14 07:49:44,322 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-12-14 07:49:44,322 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 64 [2022-12-14 07:49:44,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:49:44,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:49:44,347 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 07:49:44,480 INFO L321 Elim1Store]: treesize reduction 169, result has 21.4 percent of original size [2022-12-14 07:49:44,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 16 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 111 [2022-12-14 07:49:44,789 INFO L321 Elim1Store]: treesize reduction 344, result has 39.5 percent of original size [2022-12-14 07:49:44,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 116 treesize of output 289 [2022-12-14 07:49:45,993 INFO L321 Elim1Store]: treesize reduction 88, result has 28.5 percent of original size [2022-12-14 07:49:45,993 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 57 [2022-12-14 07:49:46,272 INFO L321 Elim1Store]: treesize reduction 55, result has 25.7 percent of original size [2022-12-14 07:49:46,272 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 73 treesize of output 73 [2022-12-14 07:49:46,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:49:46,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:49:46,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 07:49:46,723 INFO L321 Elim1Store]: treesize reduction 609, result has 28.5 percent of original size [2022-12-14 07:49:46,724 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 19 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 9 case distinctions, treesize of input 112 treesize of output 271 [2022-12-14 07:49:47,225 INFO L321 Elim1Store]: treesize reduction 208, result has 42.4 percent of original size [2022-12-14 07:49:47,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 29 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 8 case distinctions, treesize of input 109 treesize of output 153 [2022-12-14 07:49:47,574 INFO L321 Elim1Store]: treesize reduction 232, result has 53.3 percent of original size [2022-12-14 07:49:47,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 16 case distinctions, treesize of input 187 treesize of output 387 [2022-12-14 07:49:47,818 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 13