./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur --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 97d835cf94d1b164c94e454298c9901161d3451d2aec7fccfb9f6ea65c4976ed --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:59:16,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:59:16,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:59:16,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:59:16,145 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:59:16,146 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:59:16,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:59:16,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:59:16,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:59:16,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:59:16,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:59:16,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:59:16,196 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:59:16,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:59:16,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:59:16,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:59:16,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:59:16,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:59:16,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:59:16,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:59:16,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:59:16,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:59:16,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:59:16,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:59:16,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:59:16,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:59:16,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:59:16,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:59:16,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:59:16,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:59:16,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:59:16,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:59:16,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:59:16,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:59:16,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:59:16,240 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:59:16,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:59:16,241 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:59:16,241 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:59:16,242 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:59:16,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:59:16,245 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:59:16,272 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:59:16,273 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:59:16,273 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:59:16,273 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:59:16,274 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:59:16,274 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:59:16,275 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:59:16,275 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:59:16,275 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:59:16,275 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:59:16,276 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:59:16,276 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:59:16,276 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:59:16,276 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:59:16,276 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:59:16,277 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:59:16,277 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:59:16,277 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:59:16,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:59:16,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:59:16,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:59:16,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:59:16,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:59:16,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:59:16,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:59:16,280 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:59:16,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:59:16,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:59:16,280 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:59:16,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:59:16,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:59:16,281 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:59:16,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:59:16,281 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:59:16,282 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:59:16,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:59:16,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:59:16,282 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:59:16,283 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_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97d835cf94d1b164c94e454298c9901161d3451d2aec7fccfb9f6ea65c4976ed [2022-11-26 00:59:16,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:59:16,651 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:59:16,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:59:16,657 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:59:16,658 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:59:16,660 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i [2022-11-26 00:59:19,968 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:59:20,747 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:59:20,748 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i [2022-11-26 00:59:20,794 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/data/6479f281a/23cd05cd50c2482a9a9133f7b8c9b13f/FLAG565574cff [2022-11-26 00:59:20,820 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/data/6479f281a/23cd05cd50c2482a9a9133f7b8c9b13f [2022-11-26 00:59:20,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:59:20,831 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:59:20,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:59:20,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:59:20,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:59:20,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:59:20" (1/1) ... [2022-11-26 00:59:20,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c716951 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:59:20, skipping insertion in model container [2022-11-26 00:59:20,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:59:20" (1/1) ... [2022-11-26 00:59:20,850 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:59:21,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:59:22,022 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-26 00:59:22,231 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-26 00:59:22,234 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-26 00:59:22,252 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:59:22,256 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:59:22,354 WARN L623 FunctionHandler]: Unknown extern function __tasklet_schedule [2022-11-26 00:59:22,646 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:59:22,659 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:59:22,660 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-26 00:59:22,667 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-11-26 00:59:22,672 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:22,681 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-11-26 00:59:22,691 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:22,700 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-11-26 00:59:22,706 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:22,714 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:59:22,716 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:59:22,717 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:59:22,732 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:22,765 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:59:22,810 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:22,811 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:59:22,814 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:22,816 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:22,820 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:22,825 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:59:22,825 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-26 00:59:22,826 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-26 00:59:22,829 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:59:22,847 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:59:22,849 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:59:22,864 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:59:22,876 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:22,877 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:59:22,900 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:22,904 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:59:22,905 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:59:22,919 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:59:22,920 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-11-26 00:59:22,940 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:59:22,940 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:59:22,942 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:59:22,979 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:59:22,995 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-26 00:59:22,995 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:59:23,001 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-26 00:59:23,003 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-26 00:59:23,003 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-26 00:59:23,010 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:59:23,010 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:59:23,010 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:59:23,018 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-26 00:59:23,019 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-26 00:59:23,019 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-26 00:59:23,033 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:59:23,037 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:23,043 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:59:23,050 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:23,052 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:59:23,059 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:23,062 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:59:23,062 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:59:23,068 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:23,075 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-11-26 00:59:23,083 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:59:23,084 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:59:23,101 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-11-26 00:59:23,114 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-11-26 00:59:23,120 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-11-26 00:59:23,128 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-11-26 00:59:23,135 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-11-26 00:59:23,158 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-26 00:59:23,170 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:59:23,173 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:23,190 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:59:23,213 WARN L623 FunctionHandler]: Unknown extern function destroy_workqueue [2022-11-26 00:59:23,220 WARN L623 FunctionHandler]: Unknown extern function __alloc_workqueue_key [2022-11-26 00:59:23,224 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:59:23,225 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-11-26 00:59:23,225 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-26 00:59:23,226 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-26 00:59:23,226 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-26 00:59:23,229 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:59:23,230 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:59:23,232 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-26 00:59:23,247 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:59:23,256 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:59:23,258 WARN L623 FunctionHandler]: Unknown extern function cancel_delayed_work [2022-11-26 00:59:23,259 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:59:23,266 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:59:23,266 WARN L623 FunctionHandler]: Unknown extern function cancel_delayed_work [2022-11-26 00:59:23,267 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:59:23,268 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:59:23,273 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-26 00:59:23,282 WARN L623 FunctionHandler]: Unknown extern function strsep [2022-11-26 00:59:23,283 WARN L623 FunctionHandler]: Unknown extern function strsep [2022-11-26 00:59:23,283 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-11-26 00:59:23,284 WARN L623 FunctionHandler]: Unknown extern function strsep [2022-11-26 00:59:23,285 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-11-26 00:59:23,286 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-11-26 00:59:23,286 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:59:23,293 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:59:23,592 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-26 00:59:23,593 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-26 00:59:23,594 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-26 00:59:23,599 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 00:59:23,605 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-26 00:59:23,615 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:59:23,616 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:59:23,620 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_usb_register_driver [2022-11-26 00:59:23,624 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-26 00:59:23,626 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 00:59:23,630 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-26 00:59:23,631 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-26 00:59:23,632 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:59:23,632 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-26 00:59:23,632 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:59:23,633 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-26 00:59:23,634 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-26 00:59:23,704 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 00:59:23,714 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:23,783 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:23,788 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:23,793 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:23,798 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:23,815 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:23,821 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:23,826 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:23,831 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:23,836 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:23,855 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:23,860 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:23,866 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:23,871 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:23,876 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:23,898 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:23,916 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:23,921 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:23,927 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:23,932 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:23,953 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:23,959 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:23,964 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:23,970 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:23,975 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:23,995 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,000 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,006 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,011 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,016 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,059 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,064 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,070 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,075 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,081 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,100 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,106 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,111 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,116 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,122 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,141 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,147 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,152 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,157 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,163 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,181 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,187 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,192 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,196 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,201 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,220 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,225 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,229 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,234 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,239 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,257 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,258 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,258 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,259 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,259 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,259 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,260 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,260 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,260 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,261 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,261 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,261 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,285 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_4a8b3ebc-db19-421e-9511-89ccd68eceb3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327451,327464] [2022-11-26 00:59:24,290 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_4a8b3ebc-db19-421e-9511-89ccd68eceb3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327596,327609] [2022-11-26 00:59:24,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:59:24,358 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:59:24,464 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-26 00:59:24,466 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-26 00:59:24,467 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-26 00:59:24,468 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:59:24,469 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:59:24,471 WARN L623 FunctionHandler]: Unknown extern function __tasklet_schedule [2022-11-26 00:59:24,556 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:59:24,557 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:59:24,558 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-26 00:59:24,559 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-11-26 00:59:24,561 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:24,562 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-11-26 00:59:24,564 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:24,566 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-11-26 00:59:24,569 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:24,571 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:59:24,572 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:59:24,573 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:59:24,579 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:24,592 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:59:24,606 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:24,607 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:59:24,609 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:24,612 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:24,614 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:24,617 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:59:24,618 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-26 00:59:24,618 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-26 00:59:24,622 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:59:24,625 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:59:24,626 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:59:24,629 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:59:24,633 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:24,633 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:59:24,639 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:24,641 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:59:24,642 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:59:24,643 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:59:24,644 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-11-26 00:59:24,646 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:59:24,647 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:59:24,648 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:59:24,650 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:59:24,653 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-26 00:59:24,654 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:59:24,654 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-26 00:59:24,655 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-26 00:59:24,655 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-26 00:59:24,655 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:59:24,656 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:59:24,656 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:59:24,657 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-26 00:59:24,658 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-26 00:59:24,658 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-26 00:59:24,661 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:59:24,662 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:24,665 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:59:24,667 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:24,667 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:59:24,669 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:24,669 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:59:24,670 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:59:24,671 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:24,674 WARN L623 FunctionHandler]: Unknown extern function tasklet_kill [2022-11-26 00:59:24,675 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:59:24,675 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:59:24,681 WARN L623 FunctionHandler]: Unknown extern function device_set_wakeup_enable [2022-11-26 00:59:24,683 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_gset [2022-11-26 00:59:24,684 WARN L623 FunctionHandler]: Unknown extern function mii_ethtool_sset [2022-11-26 00:59:24,691 WARN L623 FunctionHandler]: Unknown extern function mii_nway_restart [2022-11-26 00:59:24,692 WARN L623 FunctionHandler]: Unknown extern function mii_link_ok [2022-11-26 00:59:24,699 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-26 00:59:24,702 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:59:24,704 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-26 00:59:24,707 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:59:24,711 WARN L623 FunctionHandler]: Unknown extern function destroy_workqueue [2022-11-26 00:59:24,713 WARN L623 FunctionHandler]: Unknown extern function __alloc_workqueue_key [2022-11-26 00:59:24,714 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:59:24,715 WARN L623 FunctionHandler]: Unknown extern function tasklet_init [2022-11-26 00:59:24,716 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-26 00:59:24,716 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-26 00:59:24,718 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-26 00:59:24,720 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:59:24,724 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:59:24,725 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-26 00:59:24,728 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:59:24,730 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:59:24,731 WARN L623 FunctionHandler]: Unknown extern function cancel_delayed_work [2022-11-26 00:59:24,732 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:59:24,734 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:59:24,735 WARN L623 FunctionHandler]: Unknown extern function cancel_delayed_work [2022-11-26 00:59:24,736 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:59:24,742 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-26 00:59:24,743 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-26 00:59:24,749 WARN L623 FunctionHandler]: Unknown extern function strsep [2022-11-26 00:59:24,750 WARN L623 FunctionHandler]: Unknown extern function strsep [2022-11-26 00:59:24,751 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-11-26 00:59:24,751 WARN L623 FunctionHandler]: Unknown extern function strsep [2022-11-26 00:59:24,752 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-11-26 00:59:24,752 WARN L623 FunctionHandler]: Unknown extern function simple_strtoul [2022-11-26 00:59:24,753 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:59:24,757 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:59:24,766 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-26 00:59:24,767 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-26 00:59:24,768 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-26 00:59:24,772 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 00:59:24,784 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-26 00:59:24,795 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:59:24,795 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:59:24,804 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_usb_register_driver [2022-11-26 00:59:24,809 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-26 00:59:24,811 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 00:59:24,815 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-26 00:59:24,815 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-26 00:59:24,816 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:59:24,817 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-26 00:59:24,817 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:59:24,818 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-26 00:59:24,818 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-26 00:59:24,823 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 00:59:24,824 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,830 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,831 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,832 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,832 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,834 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,835 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,835 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,836 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,837 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,838 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,839 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,839 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,840 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,841 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,842 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,843 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,843 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,844 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,845 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,846 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,847 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,847 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,848 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,849 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,850 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,851 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,851 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,852 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,853 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,854 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,855 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,856 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,856 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,857 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,858 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,859 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,860 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,860 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,861 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,863 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,864 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,864 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,865 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,866 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,867 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,868 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,868 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,869 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,870 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,871 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,872 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,872 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,873 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,874 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,875 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,876 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,877 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,877 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,877 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,878 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,878 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,879 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,879 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,879 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,880 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,880 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:59:24,882 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_4a8b3ebc-db19-421e-9511-89ccd68eceb3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327451,327464] [2022-11-26 00:59:24,883 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_4a8b3ebc-db19-421e-9511-89ccd68eceb3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327596,327609] [2022-11-26 00:59:24,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:59:25,204 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:59:25,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:59:25 WrapperNode [2022-11-26 00:59:25,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:59:25,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:59:25,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:59:25,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:59:25,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:59:25" (1/1) ... [2022-11-26 00:59:25,351 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:59:25" (1/1) ... [2022-11-26 00:59:25,622 INFO L138 Inliner]: procedures = 393, calls = 3380, calls flagged for inlining = 185, calls inlined = 165, statements flattened = 5621 [2022-11-26 00:59:25,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:59:25,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:59:25,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:59:25,624 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:59:25,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:59:25" (1/1) ... [2022-11-26 00:59:25,637 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:59:25" (1/1) ... [2022-11-26 00:59:25,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:59:25" (1/1) ... [2022-11-26 00:59:25,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:59:25" (1/1) ... [2022-11-26 00:59:25,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:59:25" (1/1) ... [2022-11-26 00:59:25,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:59:25" (1/1) ... [2022-11-26 00:59:25,929 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:59:25" (1/1) ... [2022-11-26 00:59:26,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:59:25" (1/1) ... [2022-11-26 00:59:26,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:59:26,051 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:59:26,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:59:26,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:59:26,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:59:25" (1/1) ... [2022-11-26 00:59:26,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:59:26,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:59:26,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:59:26,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:59:26,138 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-26 00:59:26,139 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-26 00:59:26,139 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2022-11-26 00:59:26,139 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2022-11-26 00:59:26,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-26 00:59:26,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-26 00:59:26,139 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2022-11-26 00:59:26,140 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2022-11-26 00:59:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure set_carrier [2022-11-26 00:59:26,140 INFO L138 BoogieDeclarations]: Found implementation of procedure set_carrier [2022-11-26 00:59:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure read_mii_word [2022-11-26 00:59:26,140 INFO L138 BoogieDeclarations]: Found implementation of procedure read_mii_word [2022-11-26 00:59:26,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-26 00:59:26,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-26 00:59:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-26 00:59:26,141 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-26 00:59:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-26 00:59:26,141 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-26 00:59:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-26 00:59:26,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-26 00:59:26,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:59:26,142 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-26 00:59:26,142 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-26 00:59:26,142 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_dec_workqueue [2022-11-26 00:59:26,142 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_dec_workqueue [2022-11-26 00:59:26,142 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-26 00:59:26,142 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-26 00:59:26,142 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_disconnect [2022-11-26 00:59:26,143 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_disconnect [2022-11-26 00:59:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-26 00:59:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-11-26 00:59:26,143 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-11-26 00:59:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 00:59:26,143 INFO L130 BoogieDeclarations]: Found specification of procedure __mii_op [2022-11-26 00:59:26,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __mii_op [2022-11-26 00:59:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-26 00:59:26,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-26 00:59:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:59:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-26 00:59:26,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-26 00:59:26,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-26 00:59:26,145 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-26 00:59:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_set_wol [2022-11-26 00:59:26,145 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_set_wol [2022-11-26 00:59:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-26 00:59:26,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-26 00:59:26,145 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-26 00:59:26,145 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-26 00:59:26,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-26 00:59:26,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-26 00:59:26,146 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_set_multicast [2022-11-26 00:59:26,146 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_set_multicast [2022-11-26 00:59:26,146 INFO L130 BoogieDeclarations]: Found specification of procedure set_register [2022-11-26 00:59:26,146 INFO L138 BoogieDeclarations]: Found implementation of procedure set_register [2022-11-26 00:59:26,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:59:26,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-26 00:59:26,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-26 00:59:26,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:59:26,147 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-26 00:59:26,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-26 00:59:26,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:59:26,148 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-26 00:59:26,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-26 00:59:26,148 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-11-26 00:59:26,148 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-11-26 00:59:26,149 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-26 00:59:26,149 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-26 00:59:26,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-26 00:59:26,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-26 00:59:26,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-26 00:59:26,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-26 00:59:26,149 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-26 00:59:26,150 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-26 00:59:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-26 00:59:26,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-26 00:59:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2022-11-26 00:59:26,150 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2022-11-26 00:59:26,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:59:26,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:59:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure read_bulk_callback [2022-11-26 00:59:26,151 INFO L138 BoogieDeclarations]: Found implementation of procedure read_bulk_callback [2022-11-26 00:59:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-26 00:59:26,151 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-26 00:59:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-26 00:59:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-26 00:59:26,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-26 00:59:26,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-26 00:59:26,152 INFO L130 BoogieDeclarations]: Found specification of procedure write_mii_word [2022-11-26 00:59:26,152 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mii_word [2022-11-26 00:59:26,152 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-11-26 00:59:26,152 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-11-26 00:59:26,152 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2022-11-26 00:59:26,152 INFO L138 BoogieDeclarations]: Found implementation of procedure strsep [2022-11-26 00:59:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-26 00:59:26,153 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-26 00:59:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_open [2022-11-26 00:59:26,153 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_open [2022-11-26 00:59:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-26 00:59:26,153 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-26 00:59:26,153 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-26 00:59:26,154 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-26 00:59:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:59:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure read_eprom_word [2022-11-26 00:59:26,154 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eprom_word [2022-11-26 00:59:26,154 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-26 00:59:26,154 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-26 00:59:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:59:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_nway_reset [2022-11-26 00:59:26,155 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_nway_reset [2022-11-26 00:59:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_resume [2022-11-26 00:59:26,155 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_resume [2022-11-26 00:59:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:59:26,155 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_tx_timeout [2022-11-26 00:59:26,156 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_tx_timeout [2022-11-26 00:59:26,156 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-26 00:59:26,156 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-26 00:59:26,156 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-26 00:59:26,156 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-26 00:59:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urbs [2022-11-26 00:59:26,157 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urbs [2022-11-26 00:59:26,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-26 00:59:26,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-26 00:59:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-26 00:59:26,158 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-26 00:59:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-26 00:59:26,158 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-26 00:59:26,158 INFO L130 BoogieDeclarations]: Found specification of procedure intr_callback [2022-11-26 00:59:26,158 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_callback [2022-11-26 00:59:26,159 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb_ip_align [2022-11-26 00:59:26,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb_ip_align [2022-11-26 00:59:26,159 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-26 00:59:26,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-26 00:59:26,159 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-26 00:59:26,159 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-26 00:59:26,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pegasus_exit_11_2 [2022-11-26 00:59:26,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pegasus_exit_11_2 [2022-11-26 00:59:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-26 00:59:26,160 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-26 00:59:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:59:26,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-26 00:59:26,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-26 00:59:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-26 00:59:26,161 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-26 00:59:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2022-11-26 00:59:26,161 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2022-11-26 00:59:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-26 00:59:26,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-26 00:59:26,161 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_close [2022-11-26 00:59:26,162 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_close [2022-11-26 00:59:26,162 INFO L130 BoogieDeclarations]: Found specification of procedure get_registers [2022-11-26 00:59:26,162 INFO L138 BoogieDeclarations]: Found implementation of procedure get_registers [2022-11-26 00:59:26,162 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-26 00:59:26,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_3_4 [2022-11-26 00:59:26,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_3_4 [2022-11-26 00:59:26,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:59:26,163 INFO L130 BoogieDeclarations]: Found specification of procedure set_registers [2022-11-26 00:59:26,163 INFO L138 BoogieDeclarations]: Found implementation of procedure set_registers [2022-11-26 00:59:26,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-26 00:59:26,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-26 00:59:26,999 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:59:27,002 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:59:27,796 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-26 00:59:35,457 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-26 00:59:35,890 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:59:37,115 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:59:37,116 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:59:37,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:59:37 BoogieIcfgContainer [2022-11-26 00:59:37,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:59:37,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:59:37,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:59:37,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:59:37,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:59:20" (1/3) ... [2022-11-26 00:59:37,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fede458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:59:37, skipping insertion in model container [2022-11-26 00:59:37,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:59:25" (2/3) ... [2022-11-26 00:59:37,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fede458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:59:37, skipping insertion in model container [2022-11-26 00:59:37,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:59:37" (3/3) ... [2022-11-26 00:59:37,134 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i [2022-11-26 00:59:37,156 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:59:37,156 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:59:37,259 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:59:37,268 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;@6c531fe8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:59:37,268 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:59:37,278 INFO L276 IsEmpty]: Start isEmpty. Operand has 1029 states, 636 states have (on average 1.3270440251572326) internal successors, (844), 644 states have internal predecessors, (844), 322 states have call successors, (322), 71 states have call predecessors, (322), 70 states have return successors, (316), 314 states have call predecessors, (316), 316 states have call successors, (316) [2022-11-26 00:59:37,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-11-26 00:59:37,309 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:59:37,310 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:59:37,310 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:59:37,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:59:37,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1679332717, now seen corresponding path program 1 times [2022-11-26 00:59:37,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:59:37,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108187617] [2022-11-26 00:59:37,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:59:37,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:59:37,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:59:38,686 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-11-26 00:59:38,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:59:38,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108187617] [2022-11-26 00:59:38,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108187617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:59:38,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:59:38,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:59:38,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092704108] [2022-11-26 00:59:38,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:59:38,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:59:38,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:59:38,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:59:38,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:59:38,749 INFO L87 Difference]: Start difference. First operand has 1029 states, 636 states have (on average 1.3270440251572326) internal successors, (844), 644 states have internal predecessors, (844), 322 states have call successors, (322), 71 states have call predecessors, (322), 70 states have return successors, (316), 314 states have call predecessors, (316), 316 states have call successors, (316) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-26 00:59:44,035 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:59:44,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:59:44,192 INFO L93 Difference]: Finished difference Result 2871 states and 4169 transitions. [2022-11-26 00:59:44,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:59:44,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 146 [2022-11-26 00:59:44,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:59:44,233 INFO L225 Difference]: With dead ends: 2871 [2022-11-26 00:59:44,233 INFO L226 Difference]: Without dead ends: 1802 [2022-11-26 00:59:44,253 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 [2022-11-26 00:59:44,256 INFO L413 NwaCegarLoop]: 1547 mSDtfsCounter, 1195 mSDsluCounter, 1242 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 2789 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:59:44,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1195 Valid, 2789 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 474 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-26 00:59:44,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2022-11-26 00:59:44,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 1798. [2022-11-26 00:59:44,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1798 states, 1136 states have (on average 1.3221830985915493) internal successors, (1502), 1146 states have internal predecessors, (1502), 528 states have call successors, (528), 133 states have call predecessors, (528), 133 states have return successors, (528), 524 states have call predecessors, (528), 528 states have call successors, (528) [2022-11-26 00:59:44,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 2558 transitions. [2022-11-26 00:59:44,606 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 2558 transitions. Word has length 146 [2022-11-26 00:59:44,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:59:44,607 INFO L495 AbstractCegarLoop]: Abstraction has 1798 states and 2558 transitions. [2022-11-26 00:59:44,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-26 00:59:44,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 2558 transitions. [2022-11-26 00:59:44,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-11-26 00:59:44,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:59:44,616 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:59:44,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:59:44,616 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:59:44,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:59:44,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1233981103, now seen corresponding path program 1 times [2022-11-26 00:59:44,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:59:44,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448826651] [2022-11-26 00:59:44,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:59:44,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:59:44,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:59:45,231 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-11-26 00:59:45,231 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:59:45,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448826651] [2022-11-26 00:59:45,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448826651] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:59:45,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:59:45,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:59:45,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105416044] [2022-11-26 00:59:45,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:59:45,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:59:45,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:59:45,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:59:45,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:59:45,242 INFO L87 Difference]: Start difference. First operand 1798 states and 2558 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-26 00:59:48,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:59:50,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:59:50,515 INFO L93 Difference]: Finished difference Result 4868 states and 6872 transitions. [2022-11-26 00:59:50,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:59:50,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 158 [2022-11-26 00:59:50,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:59:50,537 INFO L225 Difference]: With dead ends: 4868 [2022-11-26 00:59:50,537 INFO L226 Difference]: Without dead ends: 3095 [2022-11-26 00:59:50,546 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 [2022-11-26 00:59:50,547 INFO L413 NwaCegarLoop]: 1385 mSDtfsCounter, 929 mSDsluCounter, 1138 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 929 SdHoareTripleChecker+Valid, 2523 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:59:50,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [929 Valid, 2523 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 494 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-26 00:59:50,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3095 states. [2022-11-26 00:59:50,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3095 to 3091. [2022-11-26 00:59:50,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3091 states, 1944 states have (on average 1.3065843621399178) internal successors, (2540), 1960 states have internal predecessors, (2540), 896 states have call successors, (896), 250 states have call predecessors, (896), 250 states have return successors, (902), 887 states have call predecessors, (902), 896 states have call successors, (902) [2022-11-26 00:59:50,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3091 states to 3091 states and 4338 transitions. [2022-11-26 00:59:50,732 INFO L78 Accepts]: Start accepts. Automaton has 3091 states and 4338 transitions. Word has length 158 [2022-11-26 00:59:50,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:59:50,733 INFO L495 AbstractCegarLoop]: Abstraction has 3091 states and 4338 transitions. [2022-11-26 00:59:50,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-26 00:59:50,733 INFO L276 IsEmpty]: Start isEmpty. Operand 3091 states and 4338 transitions. [2022-11-26 00:59:50,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-11-26 00:59:50,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:59:50,736 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:59:50,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:59:50,737 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:59:50,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:59:50,738 INFO L85 PathProgramCache]: Analyzing trace with hash 670154321, now seen corresponding path program 1 times [2022-11-26 00:59:50,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:59:50,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980802925] [2022-11-26 00:59:50,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:59:50,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:59:50,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:59:51,452 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2022-11-26 00:59:51,453 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:59:51,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980802925] [2022-11-26 00:59:51,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980802925] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:59:51,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:59:51,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:59:51,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827196903] [2022-11-26 00:59:51,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:59:51,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:59:51,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:59:51,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:59:51,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:59:51,459 INFO L87 Difference]: Start difference. First operand 3091 states and 4338 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-26 00:59:55,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:59:56,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:59:56,153 INFO L93 Difference]: Finished difference Result 7291 states and 10236 transitions. [2022-11-26 00:59:56,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:59:56,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 161 [2022-11-26 00:59:56,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:59:56,178 INFO L225 Difference]: With dead ends: 7291 [2022-11-26 00:59:56,178 INFO L226 Difference]: Without dead ends: 4225 [2022-11-26 00:59:56,190 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 [2022-11-26 00:59:56,191 INFO L413 NwaCegarLoop]: 1484 mSDtfsCounter, 593 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 593 SdHoareTripleChecker+Valid, 2643 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:59:56,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [593 Valid, 2643 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 577 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-11-26 00:59:56,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4225 states. [2022-11-26 00:59:56,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4225 to 4215. [2022-11-26 00:59:56,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4215 states, 2702 states have (on average 1.312361213915618) internal successors, (3546), 2736 states have internal predecessors, (3546), 1165 states have call successors, (1165), 347 states have call predecessors, (1165), 347 states have return successors, (1171), 1142 states have call predecessors, (1171), 1165 states have call successors, (1171) [2022-11-26 00:59:56,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4215 states to 4215 states and 5882 transitions. [2022-11-26 00:59:56,413 INFO L78 Accepts]: Start accepts. Automaton has 4215 states and 5882 transitions. Word has length 161 [2022-11-26 00:59:56,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:59:56,414 INFO L495 AbstractCegarLoop]: Abstraction has 4215 states and 5882 transitions. [2022-11-26 00:59:56,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-26 00:59:56,416 INFO L276 IsEmpty]: Start isEmpty. Operand 4215 states and 5882 transitions. [2022-11-26 00:59:56,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-11-26 00:59:56,420 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:59:56,420 INFO L195 NwaCegarLoop]: trace histogram [14, 12, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:59:56,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:59:56,421 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:59:56,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:59:56,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1893101987, now seen corresponding path program 1 times [2022-11-26 00:59:56,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:59:56,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062072729] [2022-11-26 00:59:56,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:59:56,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:59:56,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:59:56,996 INFO L134 CoverageAnalysis]: Checked inductivity of 583 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2022-11-26 00:59:56,996 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:59:56,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062072729] [2022-11-26 00:59:56,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062072729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:59:56,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:59:56,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:59:56,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645216526] [2022-11-26 00:59:56,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:59:56,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:59:56,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:59:56,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:59:57,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:59:57,001 INFO L87 Difference]: Start difference. First operand 4215 states and 5882 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-26 01:00:01,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:00:02,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:00:02,621 INFO L93 Difference]: Finished difference Result 12439 states and 17330 transitions. [2022-11-26 01:00:02,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:00:02,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 160 [2022-11-26 01:00:02,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:00:02,671 INFO L225 Difference]: With dead ends: 12439 [2022-11-26 01:00:02,671 INFO L226 Difference]: Without dead ends: 8249 [2022-11-26 01:00:02,691 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 [2022-11-26 01:00:02,692 INFO L413 NwaCegarLoop]: 1605 mSDtfsCounter, 1170 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1170 SdHoareTripleChecker+Valid, 2788 SdHoareTripleChecker+Invalid, 549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-26 01:00:02,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1170 Valid, 2788 Invalid, 549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 544 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2022-11-26 01:00:02,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8249 states. [2022-11-26 01:00:03,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8249 to 8231. [2022-11-26 01:00:03,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8231 states, 5284 states have (on average 1.311884935654807) internal successors, (6932), 5356 states have internal predecessors, (6932), 2254 states have call successors, (2254), 692 states have call predecessors, (2254), 692 states have return successors, (2266), 2201 states have call predecessors, (2266), 2254 states have call successors, (2266) [2022-11-26 01:00:03,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8231 states to 8231 states and 11452 transitions. [2022-11-26 01:00:03,321 INFO L78 Accepts]: Start accepts. Automaton has 8231 states and 11452 transitions. Word has length 160 [2022-11-26 01:00:03,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:00:03,323 INFO L495 AbstractCegarLoop]: Abstraction has 8231 states and 11452 transitions. [2022-11-26 01:00:03,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-26 01:00:03,324 INFO L276 IsEmpty]: Start isEmpty. Operand 8231 states and 11452 transitions. [2022-11-26 01:00:03,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-26 01:00:03,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:00:03,330 INFO L195 NwaCegarLoop]: trace histogram [15, 12, 12, 12, 12, 12, 12, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:00:03,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 01:00:03,331 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:00:03,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:00:03,332 INFO L85 PathProgramCache]: Analyzing trace with hash -180923951, now seen corresponding path program 1 times [2022-11-26 01:00:03,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:00:03,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058154129] [2022-11-26 01:00:03,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:00:03,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:00:03,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:00:03,909 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2022-11-26 01:00:03,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:00:03,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058154129] [2022-11-26 01:00:03,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058154129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:00:03,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:00:03,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 01:00:03,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517699267] [2022-11-26 01:00:03,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:00:03,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:00:03,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:00:03,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:00:03,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:00:03,912 INFO L87 Difference]: Start difference. First operand 8231 states and 11452 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-26 01:00:08,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:00:09,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:00:09,185 INFO L93 Difference]: Finished difference Result 17349 states and 24014 transitions. [2022-11-26 01:00:09,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:00:09,185 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 175 [2022-11-26 01:00:09,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:00:09,233 INFO L225 Difference]: With dead ends: 17349 [2022-11-26 01:00:09,233 INFO L226 Difference]: Without dead ends: 9143 [2022-11-26 01:00:09,259 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 [2022-11-26 01:00:09,260 INFO L413 NwaCegarLoop]: 1359 mSDtfsCounter, 860 mSDsluCounter, 1121 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 2480 SdHoareTripleChecker+Invalid, 476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-26 01:00:09,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 2480 Invalid, 476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 471 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-11-26 01:00:09,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9143 states. [2022-11-26 01:00:09,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9143 to 9141. [2022-11-26 01:00:09,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9141 states, 5844 states have (on average 1.3021902806297057) internal successors, (7610), 5918 states have internal predecessors, (7610), 2484 states have call successors, (2484), 812 states have call predecessors, (2484), 812 states have return successors, (2496), 2429 states have call predecessors, (2496), 2484 states have call successors, (2496) [2022-11-26 01:00:09,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9141 states to 9141 states and 12590 transitions. [2022-11-26 01:00:09,732 INFO L78 Accepts]: Start accepts. Automaton has 9141 states and 12590 transitions. Word has length 175 [2022-11-26 01:00:09,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:00:09,733 INFO L495 AbstractCegarLoop]: Abstraction has 9141 states and 12590 transitions. [2022-11-26 01:00:09,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-26 01:00:09,734 INFO L276 IsEmpty]: Start isEmpty. Operand 9141 states and 12590 transitions. [2022-11-26 01:00:09,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-26 01:00:09,737 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:00:09,737 INFO L195 NwaCegarLoop]: trace histogram [14, 12, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:00:09,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 01:00:09,737 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:00:09,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:00:09,738 INFO L85 PathProgramCache]: Analyzing trace with hash -279867854, now seen corresponding path program 1 times [2022-11-26 01:00:09,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:00:09,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410370491] [2022-11-26 01:00:09,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:00:09,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:00:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:00:10,312 INFO L134 CoverageAnalysis]: Checked inductivity of 585 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2022-11-26 01:00:10,313 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:00:10,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410370491] [2022-11-26 01:00:10,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410370491] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:00:10,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:00:10,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 01:00:10,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129923625] [2022-11-26 01:00:10,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:00:10,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:00:10,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:00:10,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:00:10,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:00:10,314 INFO L87 Difference]: Start difference. First operand 9141 states and 12590 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-26 01:00:14,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:00:15,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:00:15,815 INFO L93 Difference]: Finished difference Result 20014 states and 27499 transitions. [2022-11-26 01:00:15,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:00:15,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 179 [2022-11-26 01:00:15,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:00:15,869 INFO L225 Difference]: With dead ends: 20014 [2022-11-26 01:00:15,870 INFO L226 Difference]: Without dead ends: 10898 [2022-11-26 01:00:15,900 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 [2022-11-26 01:00:15,901 INFO L413 NwaCegarLoop]: 1574 mSDtfsCounter, 589 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 2757 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-26 01:00:15,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [589 Valid, 2757 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 575 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-11-26 01:00:15,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10898 states. [2022-11-26 01:00:16,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10898 to 10888. [2022-11-26 01:00:16,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10888 states, 7048 states have (on average 1.3043416572077184) internal successors, (9193), 7152 states have internal predecessors, (9193), 2857 states have call successors, (2857), 982 states have call predecessors, (2857), 982 states have return successors, (2869), 2780 states have call predecessors, (2869), 2857 states have call successors, (2869) [2022-11-26 01:00:16,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10888 states to 10888 states and 14919 transitions. [2022-11-26 01:00:16,529 INFO L78 Accepts]: Start accepts. Automaton has 10888 states and 14919 transitions. Word has length 179 [2022-11-26 01:00:16,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:00:16,530 INFO L495 AbstractCegarLoop]: Abstraction has 10888 states and 14919 transitions. [2022-11-26 01:00:16,530 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-26 01:00:16,530 INFO L276 IsEmpty]: Start isEmpty. Operand 10888 states and 14919 transitions. [2022-11-26 01:00:16,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2022-11-26 01:00:16,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:00:16,536 INFO L195 NwaCegarLoop]: trace histogram [18, 12, 12, 12, 12, 12, 12, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:00:16,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 01:00:16,536 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:00:16,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:00:16,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1563191149, now seen corresponding path program 1 times [2022-11-26 01:00:16,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:00:16,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171877980] [2022-11-26 01:00:16,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:00:16,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:00:16,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:00:22,525 INFO L134 CoverageAnalysis]: Checked inductivity of 757 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2022-11-26 01:00:22,526 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:00:22,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171877980] [2022-11-26 01:00:22,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171877980] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 01:00:22,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463467804] [2022-11-26 01:00:22,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:00:22,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:00:22,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:00:22,534 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:00:22,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 01:00:24,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:00:24,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 5975 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-26 01:00:24,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:00:35,216 INFO L134 CoverageAnalysis]: Checked inductivity of 757 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 757 trivial. 0 not checked. [2022-11-26 01:00:35,217 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:00:35,217 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463467804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:00:35,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 01:00:35,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2022-11-26 01:00:35,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698168571] [2022-11-26 01:00:35,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:00:35,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 01:00:35,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:00:35,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 01:00:35,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2022-11-26 01:00:35,220 INFO L87 Difference]: Start difference. First operand 10888 states and 14919 transitions. Second operand has 6 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-26 01:00:41,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:00:44,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:00:44,565 INFO L93 Difference]: Finished difference Result 14892 states and 20307 transitions. [2022-11-26 01:00:44,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 01:00:44,566 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) Word has length 221 [2022-11-26 01:00:44,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:00:44,644 INFO L225 Difference]: With dead ends: 14892 [2022-11-26 01:00:44,644 INFO L226 Difference]: Without dead ends: 14890 [2022-11-26 01:00:44,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-11-26 01:00:44,655 INFO L413 NwaCegarLoop]: 1389 mSDtfsCounter, 862 mSDsluCounter, 4892 mSDsCounter, 0 mSdLazyCounter, 1580 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 863 SdHoareTripleChecker+Valid, 6281 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1580 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-26 01:00:44,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [863 Valid, 6281 Invalid, 1581 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1580 Invalid, 1 Unknown, 0 Unchecked, 8.5s Time] [2022-11-26 01:00:44,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14890 states. [2022-11-26 01:00:45,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14890 to 14874. [2022-11-26 01:00:45,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14874 states, 9608 states have (on average 1.2920482930890924) internal successors, (12414), 9754 states have internal predecessors, (12414), 3911 states have call successors, (3911), 1354 states have call predecessors, (3911), 1354 states have return successors, (3923), 3798 states have call predecessors, (3923), 3911 states have call successors, (3923) [2022-11-26 01:00:45,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14874 states to 14874 states and 20248 transitions. [2022-11-26 01:00:45,767 INFO L78 Accepts]: Start accepts. Automaton has 14874 states and 20248 transitions. Word has length 221 [2022-11-26 01:00:45,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:00:45,768 INFO L495 AbstractCegarLoop]: Abstraction has 14874 states and 20248 transitions. [2022-11-26 01:00:45,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 1 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (23), 2 states have call predecessors, (23), 1 states have call successors, (23) [2022-11-26 01:00:45,768 INFO L276 IsEmpty]: Start isEmpty. Operand 14874 states and 20248 transitions. [2022-11-26 01:00:45,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2022-11-26 01:00:45,796 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:00:45,796 INFO L195 NwaCegarLoop]: trace histogram [22, 14, 14, 14, 14, 14, 14, 13, 13, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:00:45,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 01:00:46,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:00:46,025 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:00:46,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:00:46,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1003584650, now seen corresponding path program 1 times [2022-11-26 01:00:46,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:00:46,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216878281] [2022-11-26 01:00:46,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:00:46,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:00:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:00:46,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1381 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1366 trivial. 0 not checked. [2022-11-26 01:00:46,929 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:00:46,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216878281] [2022-11-26 01:00:46,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216878281] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:00:46,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:00:46,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 01:00:46,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133271747] [2022-11-26 01:00:46,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:00:46,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:00:46,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:00:46,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:00:46,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:00:46,933 INFO L87 Difference]: Start difference. First operand 14874 states and 20248 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-11-26 01:00:50,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:00:53,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:00:53,386 INFO L93 Difference]: Finished difference Result 43810 states and 59592 transitions. [2022-11-26 01:00:53,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:00:53,387 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) Word has length 447 [2022-11-26 01:00:53,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:00:53,515 INFO L225 Difference]: With dead ends: 43810 [2022-11-26 01:00:53,515 INFO L226 Difference]: Without dead ends: 29020 [2022-11-26 01:00:53,560 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 [2022-11-26 01:00:53,560 INFO L413 NwaCegarLoop]: 1549 mSDtfsCounter, 1078 mSDsluCounter, 1150 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 2699 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-26 01:00:53,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1078 Valid, 2699 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 536 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-26 01:00:53,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29020 states. [2022-11-26 01:00:55,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29020 to 28982. [2022-11-26 01:00:55,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28982 states, 18750 states have (on average 1.2925866666666668) internal successors, (24236), 19046 states have internal predecessors, (24236), 7553 states have call successors, (7553), 2678 states have call predecessors, (7553), 2678 states have return successors, (7601), 7320 states have call predecessors, (7601), 7553 states have call successors, (7601) [2022-11-26 01:00:55,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28982 states to 28982 states and 39390 transitions. [2022-11-26 01:00:55,897 INFO L78 Accepts]: Start accepts. Automaton has 28982 states and 39390 transitions. Word has length 447 [2022-11-26 01:00:55,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:00:55,898 INFO L495 AbstractCegarLoop]: Abstraction has 28982 states and 39390 transitions. [2022-11-26 01:00:55,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-11-26 01:00:55,899 INFO L276 IsEmpty]: Start isEmpty. Operand 28982 states and 39390 transitions. [2022-11-26 01:00:55,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2022-11-26 01:00:55,958 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:00:55,959 INFO L195 NwaCegarLoop]: trace histogram [22, 14, 14, 14, 14, 14, 14, 13, 13, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:00:55,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 01:00:55,959 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:00:55,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:00:55,960 INFO L85 PathProgramCache]: Analyzing trace with hash 807348181, now seen corresponding path program 1 times [2022-11-26 01:00:55,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:00:55,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703225553] [2022-11-26 01:00:55,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:00:55,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:00:56,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:00:57,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1381 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1366 trivial. 0 not checked. [2022-11-26 01:00:57,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:00:57,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703225553] [2022-11-26 01:00:57,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703225553] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:00:57,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:00:57,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 01:00:57,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762218979] [2022-11-26 01:00:57,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:00:57,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:00:57,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:00:57,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:00:57,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:00:57,129 INFO L87 Difference]: Start difference. First operand 28982 states and 39390 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-26 01:01:01,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:01:03,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:01:03,523 INFO L93 Difference]: Finished difference Result 50131 states and 68337 transitions. [2022-11-26 01:01:03,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:01:03,523 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 448 [2022-11-26 01:01:03,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:01:03,654 INFO L225 Difference]: With dead ends: 50131 [2022-11-26 01:01:03,654 INFO L226 Difference]: Without dead ends: 28993 [2022-11-26 01:01:03,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:01:03,710 INFO L413 NwaCegarLoop]: 1186 mSDtfsCounter, 9 mSDsluCounter, 1179 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2365 SdHoareTripleChecker+Invalid, 471 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-26 01:01:03,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2365 Invalid, 471 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-26 01:01:03,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28993 states. [2022-11-26 01:01:05,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28993 to 28987. [2022-11-26 01:01:05,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28987 states, 18754 states have (on average 1.2925775834488642) internal successors, (24241), 19050 states have internal predecessors, (24241), 7554 states have call successors, (7554), 2678 states have call predecessors, (7554), 2678 states have return successors, (7602), 7321 states have call predecessors, (7602), 7554 states have call successors, (7602) [2022-11-26 01:01:05,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28987 states to 28987 states and 39397 transitions. [2022-11-26 01:01:05,935 INFO L78 Accepts]: Start accepts. Automaton has 28987 states and 39397 transitions. Word has length 448 [2022-11-26 01:01:05,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:01:05,936 INFO L495 AbstractCegarLoop]: Abstraction has 28987 states and 39397 transitions. [2022-11-26 01:01:05,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-26 01:01:05,936 INFO L276 IsEmpty]: Start isEmpty. Operand 28987 states and 39397 transitions. [2022-11-26 01:01:05,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2022-11-26 01:01:05,977 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:01:05,978 INFO L195 NwaCegarLoop]: trace histogram [22, 14, 14, 14, 14, 14, 14, 13, 13, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:01:05,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 01:01:05,979 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:01:05,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:01:05,979 INFO L85 PathProgramCache]: Analyzing trace with hash 225660591, now seen corresponding path program 1 times [2022-11-26 01:01:05,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:01:05,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142175593] [2022-11-26 01:01:05,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:01:05,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:01:06,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:01:06,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1397 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1382 trivial. 0 not checked. [2022-11-26 01:01:06,932 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:01:06,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142175593] [2022-11-26 01:01:06,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142175593] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:01:06,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:01:06,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 01:01:06,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945920636] [2022-11-26 01:01:06,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:01:06,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:01:06,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:01:06,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:01:06,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:01:06,936 INFO L87 Difference]: Start difference. First operand 28987 states and 39397 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-11-26 01:01:11,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:01:13,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:01:13,703 INFO L93 Difference]: Finished difference Result 58688 states and 81643 transitions. [2022-11-26 01:01:13,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:01:13,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) Word has length 461 [2022-11-26 01:01:13,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:01:13,888 INFO L225 Difference]: With dead ends: 58688 [2022-11-26 01:01:13,888 INFO L226 Difference]: Without dead ends: 37545 [2022-11-26 01:01:13,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 01:01:13,962 INFO L413 NwaCegarLoop]: 1704 mSDtfsCounter, 381 mSDsluCounter, 1309 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 3013 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-11-26 01:01:13,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 3013 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 562 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2022-11-26 01:01:14,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37545 states. [2022-11-26 01:01:16,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37545 to 29003. [2022-11-26 01:01:16,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29003 states, 18765 states have (on average 1.2925659472422062) internal successors, (24255), 19061 states have internal predecessors, (24255), 7559 states have call successors, (7559), 2678 states have call predecessors, (7559), 2678 states have return successors, (7607), 7326 states have call predecessors, (7607), 7559 states have call successors, (7607) [2022-11-26 01:01:16,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29003 states to 29003 states and 39421 transitions. [2022-11-26 01:01:16,354 INFO L78 Accepts]: Start accepts. Automaton has 29003 states and 39421 transitions. Word has length 461 [2022-11-26 01:01:16,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:01:16,355 INFO L495 AbstractCegarLoop]: Abstraction has 29003 states and 39421 transitions. [2022-11-26 01:01:16,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (57), 2 states have call predecessors, (57), 2 states have call successors, (57) [2022-11-26 01:01:16,356 INFO L276 IsEmpty]: Start isEmpty. Operand 29003 states and 39421 transitions. [2022-11-26 01:01:16,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2022-11-26 01:01:16,399 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:01:16,400 INFO L195 NwaCegarLoop]: trace histogram [22, 14, 14, 14, 14, 14, 14, 13, 13, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:01:16,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 01:01:16,400 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:01:16,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:01:16,401 INFO L85 PathProgramCache]: Analyzing trace with hash -838825450, now seen corresponding path program 1 times [2022-11-26 01:01:16,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:01:16,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444791654] [2022-11-26 01:01:16,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:01:16,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:01:16,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:01:17,712 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 1410 trivial. 0 not checked. [2022-11-26 01:01:17,712 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:01:17,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444791654] [2022-11-26 01:01:17,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444791654] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 01:01:17,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1271399935] [2022-11-26 01:01:17,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:01:17,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:01:17,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:01:17,715 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:01:17,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 01:01:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:01:20,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 8336 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 01:01:20,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:01:20,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 386 proven. 0 refuted. 0 times theorem prover too weak. 1040 trivial. 0 not checked. [2022-11-26 01:01:20,828 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:01:20,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1271399935] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:01:20,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 01:01:20,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-26 01:01:20,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312396758] [2022-11-26 01:01:20,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:01:20,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:01:20,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:01:20,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:01:20,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:01:20,833 INFO L87 Difference]: Start difference. First operand 29003 states and 39421 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-11-26 01:01:25,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:01:27,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:01:29,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:01:29,393 INFO L93 Difference]: Finished difference Result 60315 states and 82287 transitions. [2022-11-26 01:01:29,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:01:29,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 479 [2022-11-26 01:01:29,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:01:29,547 INFO L225 Difference]: With dead ends: 60315 [2022-11-26 01:01:29,547 INFO L226 Difference]: Without dead ends: 39156 [2022-11-26 01:01:29,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 479 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:01:29,611 INFO L413 NwaCegarLoop]: 1477 mSDtfsCounter, 1121 mSDsluCounter, 1186 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 2663 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-26 01:01:29,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1121 Valid, 2663 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 464 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2022-11-26 01:01:29,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39156 states. [2022-11-26 01:01:31,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39156 to 39118. [2022-11-26 01:01:31,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39118 states, 25306 states have (on average 1.2951869121947364) internal successors, (32776), 25696 states have internal predecessors, (32776), 10213 states have call successors, (10213), 3598 states have call predecessors, (10213), 3598 states have return successors, (10279), 9901 states have call predecessors, (10279), 10213 states have call successors, (10279) [2022-11-26 01:01:31,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39118 states to 39118 states and 53268 transitions. [2022-11-26 01:01:31,810 INFO L78 Accepts]: Start accepts. Automaton has 39118 states and 53268 transitions. Word has length 479 [2022-11-26 01:01:31,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:01:31,811 INFO L495 AbstractCegarLoop]: Abstraction has 39118 states and 53268 transitions. [2022-11-26 01:01:31,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (60), 3 states have call predecessors, (60), 3 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-11-26 01:01:31,812 INFO L276 IsEmpty]: Start isEmpty. Operand 39118 states and 53268 transitions. [2022-11-26 01:01:31,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2022-11-26 01:01:31,859 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:01:31,860 INFO L195 NwaCegarLoop]: trace histogram [22, 14, 14, 14, 14, 14, 14, 13, 13, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:01:31,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 01:01:32,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:01:32,075 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:01:32,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:01:32,076 INFO L85 PathProgramCache]: Analyzing trace with hash 2017151086, now seen corresponding path program 1 times [2022-11-26 01:01:32,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:01:32,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106491262] [2022-11-26 01:01:32,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:01:32,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:01:32,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:01:33,642 INFO L134 CoverageAnalysis]: Checked inductivity of 1438 backedges. 25 proven. 1 refuted. 0 times theorem prover too weak. 1412 trivial. 0 not checked. [2022-11-26 01:01:33,642 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:01:33,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106491262] [2022-11-26 01:01:33,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106491262] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 01:01:33,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994933533] [2022-11-26 01:01:33,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:01:33,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:01:33,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:01:33,645 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:01:33,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 01:01:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:01:35,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 8449 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-26 01:01:35,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:01:36,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1438 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 1369 trivial. 0 not checked. [2022-11-26 01:01:36,070 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:01:36,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994933533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:01:36,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 01:01:36,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-11-26 01:01:36,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686101312] [2022-11-26 01:01:36,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:01:36,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:01:36,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:01:36,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:01:36,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-26 01:01:36,074 INFO L87 Difference]: Start difference. First operand 39118 states and 53268 transitions. Second operand has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 3 states have call successors, (63), 3 states have call predecessors, (63), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-26 01:01:40,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:01:44,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:01:44,469 INFO L93 Difference]: Finished difference Result 86450 states and 117702 transitions. [2022-11-26 01:01:44,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:01:44,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 3 states have call successors, (63), 3 states have call predecessors, (63), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 494 [2022-11-26 01:01:44,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:01:44,672 INFO L225 Difference]: With dead ends: 86450 [2022-11-26 01:01:44,672 INFO L226 Difference]: Without dead ends: 47416 [2022-11-26 01:01:44,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 493 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-26 01:01:44,786 INFO L413 NwaCegarLoop]: 1521 mSDtfsCounter, 622 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 2916 SdHoareTripleChecker+Invalid, 924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-26 01:01:44,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 2916 Invalid, 924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 909 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-11-26 01:01:44,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47416 states. [2022-11-26 01:01:47,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47416 to 47350. [2022-11-26 01:01:47,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47350 states, 30802 states have (on average 1.2969287708590351) internal successors, (39948), 31344 states have internal predecessors, (39948), 12101 states have call successors, (12101), 4446 states have call predecessors, (12101), 4446 states have return successors, (12167), 11661 states have call predecessors, (12167), 12101 states have call successors, (12167) [2022-11-26 01:01:47,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47350 states to 47350 states and 64216 transitions. [2022-11-26 01:01:47,799 INFO L78 Accepts]: Start accepts. Automaton has 47350 states and 64216 transitions. Word has length 494 [2022-11-26 01:01:47,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:01:47,801 INFO L495 AbstractCegarLoop]: Abstraction has 47350 states and 64216 transitions. [2022-11-26 01:01:47,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.75) internal successors, (167), 4 states have internal predecessors, (167), 3 states have call successors, (63), 3 states have call predecessors, (63), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-26 01:01:47,801 INFO L276 IsEmpty]: Start isEmpty. Operand 47350 states and 64216 transitions. [2022-11-26 01:01:47,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2022-11-26 01:01:47,837 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:01:47,838 INFO L195 NwaCegarLoop]: trace histogram [22, 14, 14, 14, 14, 14, 14, 13, 13, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:01:48,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 01:01:48,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:01:48,199 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:01:48,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:01:48,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1977738324, now seen corresponding path program 1 times [2022-11-26 01:01:48,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:01:48,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420227702] [2022-11-26 01:01:48,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:01:48,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:01:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:01:49,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 1412 trivial. 0 not checked. [2022-11-26 01:01:49,432 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:01:49,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420227702] [2022-11-26 01:01:49,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420227702] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 01:01:49,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60947565] [2022-11-26 01:01:49,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:01:49,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:01:49,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:01:49,434 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:01:49,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 01:01:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:01:51,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 8360 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 01:01:51,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:01:52,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1426 backedges. 388 proven. 0 refuted. 0 times theorem prover too weak. 1038 trivial. 0 not checked. [2022-11-26 01:01:52,265 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:01:52,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60947565] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:01:52,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 01:01:52,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-26 01:01:52,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688915686] [2022-11-26 01:01:52,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:01:52,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:01:52,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:01:52,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:01:52,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:01:52,268 INFO L87 Difference]: Start difference. First operand 47350 states and 64216 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-26 01:01:55,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:02:01,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:02:02,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:02:02,006 INFO L93 Difference]: Finished difference Result 99546 states and 135700 transitions. [2022-11-26 01:02:02,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:02:02,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 491 [2022-11-26 01:02:02,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:02:02,343 INFO L225 Difference]: With dead ends: 99546 [2022-11-26 01:02:02,343 INFO L226 Difference]: Without dead ends: 61328 [2022-11-26 01:02:02,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 491 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:02:02,458 INFO L413 NwaCegarLoop]: 1400 mSDtfsCounter, 1024 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 470 mSolverCounterSat, 42 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 2467 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 470 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-26 01:02:02,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 2467 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 470 Invalid, 2 Unknown, 0 Unchecked, 6.7s Time] [2022-11-26 01:02:02,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61328 states. [2022-11-26 01:02:05,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61328 to 61312. [2022-11-26 01:02:05,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61312 states, 40160 states have (on average 1.2893426294820718) internal successors, (51780), 40894 states have internal predecessors, (51780), 15463 states have call successors, (15463), 5688 states have call predecessors, (15463), 5688 states have return successors, (15565), 14851 states have call predecessors, (15565), 15463 states have call successors, (15565) [2022-11-26 01:02:05,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61312 states to 61312 states and 82808 transitions. [2022-11-26 01:02:05,797 INFO L78 Accepts]: Start accepts. Automaton has 61312 states and 82808 transitions. Word has length 491 [2022-11-26 01:02:05,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:02:05,798 INFO L495 AbstractCegarLoop]: Abstraction has 61312 states and 82808 transitions. [2022-11-26 01:02:05,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 3 states have call successors, (61), 3 states have call predecessors, (61), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-26 01:02:05,798 INFO L276 IsEmpty]: Start isEmpty. Operand 61312 states and 82808 transitions. [2022-11-26 01:02:05,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2022-11-26 01:02:05,830 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:02:05,830 INFO L195 NwaCegarLoop]: trace histogram [21, 15, 15, 14, 14, 14, 14, 14, 14, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:02:05,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-26 01:02:06,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:02:06,051 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:02:06,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:02:06,052 INFO L85 PathProgramCache]: Analyzing trace with hash -67695365, now seen corresponding path program 1 times [2022-11-26 01:02:06,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:02:06,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074446159] [2022-11-26 01:02:06,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:02:06,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:02:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:02:07,564 INFO L134 CoverageAnalysis]: Checked inductivity of 1492 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1489 trivial. 0 not checked. [2022-11-26 01:02:07,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:02:07,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074446159] [2022-11-26 01:02:07,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074446159] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 01:02:07,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956606085] [2022-11-26 01:02:07,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:02:07,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:02:07,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:02:07,567 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:02:07,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a8b3ebc-db19-421e-9511-89ccd68eceb3/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-26 01:02:09,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:02:09,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 8808 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-26 01:02:10,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:02:10,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1492 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 1332 trivial. 0 not checked. [2022-11-26 01:02:10,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:02:10,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956606085] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:02:10,042 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 01:02:10,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-26 01:02:10,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106258775] [2022-11-26 01:02:10,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:02:10,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 01:02:10,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:02:10,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 01:02:10,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:02:10,044 INFO L87 Difference]: Start difference. First operand 61312 states and 82808 transitions. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-26 01:02:13,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 01:02:18,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:02:18,513 INFO L93 Difference]: Finished difference Result 135856 states and 187785 transitions. [2022-11-26 01:02:18,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 01:02:18,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 495 [2022-11-26 01:02:18,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:02:18,797 INFO L225 Difference]: With dead ends: 135856 [2022-11-26 01:02:18,797 INFO L226 Difference]: Without dead ends: 83676 [2022-11-26 01:02:18,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 495 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:02:18,916 INFO L413 NwaCegarLoop]: 1635 mSDtfsCounter, 321 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 555 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 440 SdHoareTripleChecker+Valid, 2929 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 555 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-26 01:02:18,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [440 Valid, 2929 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 555 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-11-26 01:02:18,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83676 states.