./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.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_2eb60f35-7fad-4222-b17b-b537f944366a/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb60f35-7fad-4222-b17b-b537f944366a/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_2eb60f35-7fad-4222-b17b-b537f944366a/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb60f35-7fad-4222-b17b-b537f944366a/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb60f35-7fad-4222-b17b-b537f944366a/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_2eb60f35-7fad-4222-b17b-b537f944366a/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 e3ed5a6aa0282e2dbd5967163bb1c33dc8964226641967602a6cd0884f5c00f9 --- 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 00:48:55,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:48:55,103 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:48:55,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:48:55,122 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:48:55,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:48:55,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:48:55,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:48:55,138 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:48:55,139 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:48:55,140 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:48:55,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:48:55,142 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:48:55,143 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:48:55,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:48:55,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:48:55,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:48:55,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:48:55,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:48:55,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:48:55,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:48:55,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:48:55,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:48:55,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:48:55,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:48:55,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:48:55,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:48:55,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:48:55,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:48:55,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:48:55,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:48:55,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:48:55,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:48:55,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:48:55,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:48:55,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:48:55,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:48:55,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:48:55,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:48:55,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:48:55,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:48:55,203 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb60f35-7fad-4222-b17b-b537f944366a/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:48:55,242 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:48:55,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:48:55,246 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:48:55,247 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:48:55,248 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:48:55,248 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:48:55,248 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:48:55,249 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:48:55,249 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:48:55,249 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:48:55,250 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:48:55,250 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:48:55,251 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:48:55,251 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:48:55,251 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:48:55,252 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:48:55,252 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:48:55,252 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:48:55,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:48:55,253 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:48:55,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:48:55,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:48:55,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:48:55,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:48:55,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:48:55,254 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:48:55,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:48:55,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:48:55,255 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:48:55,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:48:55,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:48:55,256 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:48:55,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:48:55,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:48:55,257 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:48:55,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:48:55,257 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:48:55,257 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:48:55,257 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_2eb60f35-7fad-4222-b17b-b537f944366a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb60f35-7fad-4222-b17b-b537f944366a/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3ed5a6aa0282e2dbd5967163bb1c33dc8964226641967602a6cd0884f5c00f9 [2022-11-26 00:48:55,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:48:55,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:48:55,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:48:55,559 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:48:55,560 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:48:55,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb60f35-7fad-4222-b17b-b537f944366a/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i [2022-11-26 00:48:58,633 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:48:59,331 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:48:59,331 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb60f35-7fad-4222-b17b-b537f944366a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i [2022-11-26 00:48:59,394 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb60f35-7fad-4222-b17b-b537f944366a/bin/utaipan-ByfvJB40ur/data/7b5de914f/bef4aec8af3e4f55b2157ae492c064da/FLAG97c426a83 [2022-11-26 00:48:59,412 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb60f35-7fad-4222-b17b-b537f944366a/bin/utaipan-ByfvJB40ur/data/7b5de914f/bef4aec8af3e4f55b2157ae492c064da [2022-11-26 00:48:59,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:48:59,419 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:48:59,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:48:59,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:48:59,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:48:59,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:48:59" (1/1) ... [2022-11-26 00:48:59,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58269c99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:48:59, skipping insertion in model container [2022-11-26 00:48:59,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:48:59" (1/1) ... [2022-11-26 00:48:59,440 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:48:59,667 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:49:00,563 WARN L623 FunctionHandler]: Unknown extern function __local_bh_disable_ip [2022-11-26 00:49:00,580 WARN L623 FunctionHandler]: Unknown extern function __local_bh_enable_ip [2022-11-26 00:49:00,637 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-26 00:49:00,645 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-26 00:49:00,653 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-26 00:49:00,680 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-26 00:49:00,826 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:00,918 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:49:00,927 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:49:00,928 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-26 00:49:00,942 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-26 00:49:00,960 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-26 00:49:00,968 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-11-26 00:49:01,004 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-26 00:49:01,012 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:49:01,014 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-26 00:49:01,022 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-11-26 00:49:01,028 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-11-26 00:49:01,134 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-11-26 00:49:01,145 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-26 00:49:01,146 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:49:01,202 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-26 00:49:01,218 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-26 00:49:01,257 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-26 00:49:01,275 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:49:01,276 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:49:01,312 WARN L623 FunctionHandler]: Unknown extern function dql_completed [2022-11-26 00:49:01,323 WARN L623 FunctionHandler]: Unknown extern function dql_reset [2022-11-26 00:49:01,341 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-11-26 00:49:01,381 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:49:01,382 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:49:01,383 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:49:01,384 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:49:01,384 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-11-26 00:49:01,499 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-26 00:49:01,564 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-11-26 00:49:01,739 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-26 00:49:01,740 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:49:01,741 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:49:01,742 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:49:01,782 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:49:01,783 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-26 00:49:01,785 WARN L623 FunctionHandler]: Unknown extern function napi_gro_receive [2022-11-26 00:49:01,795 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-11-26 00:49:01,796 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:49:01,804 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:49:01,805 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:49:01,843 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:49:01,861 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-26 00:49:01,862 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-11-26 00:49:01,907 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_542 [2022-11-26 00:49:01,908 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_551 [2022-11-26 00:49:01,909 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:49:01,909 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:49:01,916 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-11-26 00:49:01,923 WARN L623 FunctionHandler]: Unknown extern function netif_napi_del [2022-11-26 00:49:01,923 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:49:01,924 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:49:01,942 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-11-26 00:49:01,949 WARN L623 FunctionHandler]: Unknown extern function pci_enable_msi_block [2022-11-26 00:49:01,950 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-11-26 00:49:01,958 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-11-26 00:49:01,971 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:49:01,990 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:49:02,015 WARN L623 FunctionHandler]: Unknown extern function rtnl_is_locked [2022-11-26 00:49:02,016 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:49:02,018 WARN L623 FunctionHandler]: Unknown extern function dump_stack [2022-11-26 00:49:02,031 WARN L623 FunctionHandler]: Unknown extern function netdev_update_features [2022-11-26 00:49:02,038 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-26 00:49:02,045 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:49:02,066 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:49:02,067 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:49:02,069 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:49:02,086 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-26 00:49:02,086 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-26 00:49:02,093 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-26 00:49:02,093 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-26 00:49:02,127 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:49:02,151 WARN L623 FunctionHandler]: Unknown extern function mdio_mii_ioctl [2022-11-26 00:49:02,178 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device_mem [2022-11-26 00:49:02,183 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:49:02,185 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:49:02,187 WARN L623 FunctionHandler]: Unknown extern function pci_select_bars [2022-11-26 00:49:02,187 WARN L623 FunctionHandler]: Unknown extern function pci_request_selected_regions [2022-11-26 00:49:02,188 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:49:02,189 WARN L623 FunctionHandler]: Unknown extern function pci_enable_pcie_error_reporting [2022-11-26 00:49:02,189 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-26 00:49:02,190 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:49:02,192 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:49:02,192 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:49:02,197 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:49:02,199 WARN L623 FunctionHandler]: Unknown extern function pci_ioremap_bar [2022-11-26 00:49:02,199 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:49:02,201 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:49:02,202 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:49:02,203 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:49:02,203 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-26 00:49:02,205 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:49:02,205 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-26 00:49:02,206 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-26 00:49:02,206 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-26 00:49:02,207 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-26 00:49:02,207 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:49:02,208 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:49:02,208 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:49:02,209 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-26 00:49:02,209 WARN L623 FunctionHandler]: Unknown extern function pci_release_selected_regions [2022-11-26 00:49:02,209 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:49:02,216 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-26 00:49:02,216 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-26 00:49:02,216 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-26 00:49:02,217 WARN L623 FunctionHandler]: Unknown extern function pci_select_bars [2022-11-26 00:49:02,218 WARN L623 FunctionHandler]: Unknown extern function pci_release_selected_regions [2022-11-26 00:49:02,218 WARN L623 FunctionHandler]: Unknown extern function pci_disable_pcie_error_reporting [2022-11-26 00:49:02,219 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:49:02,225 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:49:02,232 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-26 00:49:02,240 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:49:02,241 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-26 00:49:02,241 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:49:02,242 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:49:02,242 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-26 00:49:02,249 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:49:02,250 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-26 00:49:02,250 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-26 00:49:02,250 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:49:02,251 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-26 00:49:02,254 WARN L623 FunctionHandler]: Unknown extern function pci_cleanup_aer_uncorrect_error_status [2022-11-26 00:49:02,255 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-26 00:49:02,261 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:49:02,261 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-26 00:49:02,262 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-26 00:49:02,262 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-26 00:49:02,799 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:02,799 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:02,800 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:02,800 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:02,800 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:02,800 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:02,801 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:02,801 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:02,801 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:02,802 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:02,802 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:02,802 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:02,803 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:02,803 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:02,803 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:02,803 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:02,808 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-26 00:49:02,814 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:49:02,815 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:49:02,816 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:49:02,817 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:49:02,829 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-26 00:49:02,839 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-26 00:49:02,851 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-26 00:49:02,860 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-26 00:49:02,861 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-26 00:49:02,862 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-26 00:49:02,862 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:49:02,863 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-26 00:49:02,863 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:49:02,864 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-26 00:49:02,864 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-26 00:49:02,929 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_119 [2022-11-26 00:49:02,929 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_120 [2022-11-26 00:49:02,930 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_121 [2022-11-26 00:49:02,930 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_122 [2022-11-26 00:49:02,930 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_123 [2022-11-26 00:49:02,945 WARN L623 FunctionHandler]: Unknown extern function rtnl_is_locked [2022-11-26 00:49:02,945 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:49:02,946 WARN L623 FunctionHandler]: Unknown extern function dump_stack [2022-11-26 00:49:02,961 WARN L623 FunctionHandler]: Unknown extern function rtnl_is_locked [2022-11-26 00:49:02,961 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:49:02,962 WARN L623 FunctionHandler]: Unknown extern function dump_stack [2022-11-26 00:49:02,986 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_274 [2022-11-26 00:49:02,997 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:49:03,006 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-11-26 00:49:03,050 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-11-26 00:49:03,056 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-11-26 00:49:03,127 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:03,202 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:03,203 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:03,210 WARN L623 FunctionHandler]: Unknown extern function __bad_unaligned_access_size [2022-11-26 00:49:03,216 WARN L623 FunctionHandler]: Unknown extern function __bad_unaligned_access_size [2022-11-26 00:49:03,227 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:03,233 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:03,234 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:03,236 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:03,237 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:03,237 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:03,238 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:03,239 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:03,240 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:03,240 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:03,245 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:03,303 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:49:03,307 WARN L623 FunctionHandler]: Unknown extern function pcie_get_readrq [2022-11-26 00:49:03,309 WARN L623 FunctionHandler]: Unknown extern function pcie_set_readrq [2022-11-26 00:49:03,436 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-26 00:49:03,436 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 00:49:03,472 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:49:03,558 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_2eb60f35-7fad-4222-b17b-b537f944366a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416147,416160] [2022-11-26 00:49:03,562 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_2eb60f35-7fad-4222-b17b-b537f944366a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416294,416307] [2022-11-26 00:49:03,563 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_2eb60f35-7fad-4222-b17b-b537f944366a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416433,416446] [2022-11-26 00:49:03,564 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_2eb60f35-7fad-4222-b17b-b537f944366a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416591,416604] [2022-11-26 00:49:03,565 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:03,566 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:03,567 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:03,587 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:03,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:49:03,703 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:49:03,848 WARN L623 FunctionHandler]: Unknown extern function __local_bh_disable_ip [2022-11-26 00:49:03,849 WARN L623 FunctionHandler]: Unknown extern function __local_bh_enable_ip [2022-11-26 00:49:03,852 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-26 00:49:03,852 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-26 00:49:03,853 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-26 00:49:03,853 WARN L623 FunctionHandler]: Unknown extern function queue_work_on [2022-11-26 00:49:03,857 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:03,863 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:49:03,864 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:49:03,864 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-26 00:49:03,866 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-26 00:49:03,909 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-26 00:49:03,910 WARN L623 FunctionHandler]: Unknown extern function debug_dma_mapping_error [2022-11-26 00:49:03,913 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-26 00:49:03,914 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:49:03,915 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-26 00:49:03,915 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-11-26 00:49:03,916 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-11-26 00:49:03,920 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-11-26 00:49:03,920 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-26 00:49:03,921 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:49:03,925 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-26 00:49:03,928 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-26 00:49:03,929 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-26 00:49:03,930 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:49:03,931 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:49:03,934 WARN L623 FunctionHandler]: Unknown extern function dql_completed [2022-11-26 00:49:03,935 WARN L623 FunctionHandler]: Unknown extern function dql_reset [2022-11-26 00:49:03,936 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_any [2022-11-26 00:49:03,938 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:49:03,939 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:49:03,939 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:49:03,940 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-26 00:49:03,940 WARN L623 FunctionHandler]: Unknown extern function __bad_size_call_parameter [2022-11-26 00:49:03,943 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-26 00:49:03,946 WARN L623 FunctionHandler]: Unknown extern function get_random_bytes [2022-11-26 00:49:03,954 WARN L623 FunctionHandler]: Unknown extern function __netdev_alloc_skb [2022-11-26 00:49:03,956 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:49:03,956 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:49:03,957 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:49:03,968 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:49:03,969 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-26 00:49:03,970 WARN L623 FunctionHandler]: Unknown extern function napi_gro_receive [2022-11-26 00:49:03,973 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-11-26 00:49:03,974 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:49:03,976 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:49:03,976 WARN L623 FunctionHandler]: Unknown extern function netdev_warn [2022-11-26 00:49:03,983 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:49:03,985 WARN L623 FunctionHandler]: Unknown extern function crc32_le [2022-11-26 00:49:03,986 WARN L623 FunctionHandler]: Unknown extern function bitrev32 [2022-11-26 00:49:03,994 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_542 [2022-11-26 00:49:03,995 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_551 [2022-11-26 00:49:03,996 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:49:03,997 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:49:03,998 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-11-26 00:49:03,999 WARN L623 FunctionHandler]: Unknown extern function netif_napi_del [2022-11-26 00:49:03,999 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:49:03,999 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-26 00:49:04,001 WARN L623 FunctionHandler]: Unknown extern function synchronize_irq [2022-11-26 00:49:04,002 WARN L623 FunctionHandler]: Unknown extern function pci_enable_msi_block [2022-11-26 00:49:04,003 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-11-26 00:49:04,007 WARN L623 FunctionHandler]: Unknown extern function pci_disable_msi [2022-11-26 00:49:04,009 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:49:04,012 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:49:04,014 WARN L623 FunctionHandler]: Unknown extern function rtnl_is_locked [2022-11-26 00:49:04,015 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:49:04,015 WARN L623 FunctionHandler]: Unknown extern function dump_stack [2022-11-26 00:49:04,017 WARN L623 FunctionHandler]: Unknown extern function netdev_update_features [2022-11-26 00:49:04,018 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-26 00:49:04,018 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:49:04,026 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irqsave [2022-11-26 00:49:04,028 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:49:04,029 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:49:04,031 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-26 00:49:04,031 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-26 00:49:04,032 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-26 00:49:04,032 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-26 00:49:04,043 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:49:04,046 WARN L623 FunctionHandler]: Unknown extern function mdio_mii_ioctl [2022-11-26 00:49:04,051 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device_mem [2022-11-26 00:49:04,053 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-26 00:49:04,053 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:49:04,054 WARN L623 FunctionHandler]: Unknown extern function pci_select_bars [2022-11-26 00:49:04,054 WARN L623 FunctionHandler]: Unknown extern function pci_request_selected_regions [2022-11-26 00:49:04,055 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:49:04,055 WARN L623 FunctionHandler]: Unknown extern function pci_enable_pcie_error_reporting [2022-11-26 00:49:04,055 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-26 00:49:04,056 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:49:04,059 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:49:04,060 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:49:04,060 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:49:04,061 WARN L623 FunctionHandler]: Unknown extern function pci_ioremap_bar [2022-11-26 00:49:04,062 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:49:04,063 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:49:04,064 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:49:04,064 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:49:04,065 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-26 00:49:04,067 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:49:04,067 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-26 00:49:04,068 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-26 00:49:04,068 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-26 00:49:04,069 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-26 00:49:04,069 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:49:04,070 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:49:04,070 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:49:04,071 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-26 00:49:04,071 WARN L623 FunctionHandler]: Unknown extern function pci_release_selected_regions [2022-11-26 00:49:04,071 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:49:04,073 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-26 00:49:04,073 WARN L623 FunctionHandler]: Unknown extern function cancel_work_sync [2022-11-26 00:49:04,073 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-26 00:49:04,074 WARN L623 FunctionHandler]: Unknown extern function pci_select_bars [2022-11-26 00:49:04,074 WARN L623 FunctionHandler]: Unknown extern function pci_release_selected_regions [2022-11-26 00:49:04,074 WARN L623 FunctionHandler]: Unknown extern function pci_disable_pcie_error_reporting [2022-11-26 00:49:04,075 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:49:04,076 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:49:04,077 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-26 00:49:04,078 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:49:04,079 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-26 00:49:04,079 WARN L623 FunctionHandler]: Unknown extern function netif_device_detach [2022-11-26 00:49:04,080 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:49:04,080 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-26 00:49:04,081 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:49:04,081 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-26 00:49:04,082 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-26 00:49:04,082 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:49:04,083 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-26 00:49:04,083 WARN L623 FunctionHandler]: Unknown extern function pci_cleanup_aer_uncorrect_error_status [2022-11-26 00:49:04,083 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-26 00:49:04,084 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-26 00:49:04,084 WARN L623 FunctionHandler]: Unknown extern function rtnl_lock [2022-11-26 00:49:04,085 WARN L623 FunctionHandler]: Unknown extern function netif_device_attach [2022-11-26 00:49:04,085 WARN L623 FunctionHandler]: Unknown extern function rtnl_unlock [2022-11-26 00:49:04,095 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:04,095 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:04,096 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:04,096 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:04,096 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:04,097 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:04,097 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:04,097 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:04,098 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:04,098 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:04,098 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:04,098 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:04,099 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:04,099 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:04,099 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:04,101 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:04,105 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-26 00:49:04,112 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:49:04,112 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:49:04,113 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:49:04,114 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:49:04,124 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-26 00:49:04,134 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-26 00:49:04,181 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-26 00:49:04,197 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-26 00:49:04,198 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-26 00:49:04,198 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-26 00:49:04,199 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:49:04,199 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-26 00:49:04,200 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:49:04,200 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-26 00:49:04,200 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-26 00:49:04,206 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_119 [2022-11-26 00:49:04,207 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_120 [2022-11-26 00:49:04,207 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_121 [2022-11-26 00:49:04,207 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_122 [2022-11-26 00:49:04,208 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_123 [2022-11-26 00:49:04,211 WARN L623 FunctionHandler]: Unknown extern function rtnl_is_locked [2022-11-26 00:49:04,212 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:49:04,212 WARN L623 FunctionHandler]: Unknown extern function dump_stack [2022-11-26 00:49:04,216 WARN L623 FunctionHandler]: Unknown extern function rtnl_is_locked [2022-11-26 00:49:04,216 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:49:04,217 WARN L623 FunctionHandler]: Unknown extern function dump_stack [2022-11-26 00:49:04,221 WARN L623 FunctionHandler]: Unknown extern function __compiletime_assert_274 [2022-11-26 00:49:04,222 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:49:04,225 WARN L623 FunctionHandler]: Unknown extern function ethtool_op_get_link [2022-11-26 00:49:04,227 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-11-26 00:49:04,228 WARN L623 FunctionHandler]: Unknown extern function pci_bus_write_config_word [2022-11-26 00:49:04,235 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:04,243 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:04,244 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:04,245 WARN L623 FunctionHandler]: Unknown extern function __bad_unaligned_access_size [2022-11-26 00:49:04,247 WARN L623 FunctionHandler]: Unknown extern function __bad_unaligned_access_size [2022-11-26 00:49:04,250 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:04,251 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:04,255 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:04,257 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:04,258 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:04,258 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:04,267 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:04,268 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:04,269 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:04,270 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:04,274 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:49:04,291 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-26 00:49:04,293 WARN L623 FunctionHandler]: Unknown extern function pcie_get_readrq [2022-11-26 00:49:04,294 WARN L623 FunctionHandler]: Unknown extern function pcie_set_readrq [2022-11-26 00:49:04,348 WARN L623 FunctionHandler]: Unknown extern function ldv_check_alloc_flags [2022-11-26 00:49:04,348 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 00:49:04,349 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:49:04,355 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_2eb60f35-7fad-4222-b17b-b537f944366a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416147,416160] [2022-11-26 00:49:04,355 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_2eb60f35-7fad-4222-b17b-b537f944366a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416294,416307] [2022-11-26 00:49:04,356 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_2eb60f35-7fad-4222-b17b-b537f944366a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416433,416446] [2022-11-26 00:49:04,356 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_2eb60f35-7fad-4222-b17b-b537f944366a/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i[416591,416604] [2022-11-26 00:49:04,357 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:04,361 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:04,362 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:04,366 WARN L623 FunctionHandler]: Unknown extern function ldv_malloc [2022-11-26 00:49:04,369 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:49:04,663 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:49:04,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:04 WrapperNode [2022-11-26 00:49:04,664 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:49:04,665 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:49:04,665 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:49:04,665 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:49:04,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:04" (1/1) ... [2022-11-26 00:49:04,826 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:04" (1/1) ... [2022-11-26 00:49:05,130 INFO L138 Inliner]: procedures = 543, calls = 4106, calls flagged for inlining = 313, calls inlined = 291, statements flattened = 8466 [2022-11-26 00:49:05,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:49:05,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:49:05,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:49:05,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:49:05,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:04" (1/1) ... [2022-11-26 00:49:05,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:04" (1/1) ... [2022-11-26 00:49:05,226 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:04" (1/1) ... [2022-11-26 00:49:05,226 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:04" (1/1) ... [2022-11-26 00:49:05,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:04" (1/1) ... [2022-11-26 00:49:05,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:04" (1/1) ... [2022-11-26 00:49:05,440 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:04" (1/1) ... [2022-11-26 00:49:05,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:04" (1/1) ... [2022-11-26 00:49:05,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:49:05,637 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:49:05,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:49:05,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:49:05,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:04" (1/1) ... [2022-11-26 00:49:05,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:49:05,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb60f35-7fad-4222-b17b-b537f944366a/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:49:05,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb60f35-7fad-4222-b17b-b537f944366a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:49:05,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb60f35-7fad-4222-b17b-b537f944366a/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:49:05,733 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_wake_queue [2022-11-26 00:49:05,734 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_wake_queue [2022-11-26 00:49:05,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-26 00:49:05,734 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-26 00:49:05,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2022-11-26 00:49:05,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2022-11-26 00:49:05,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-26 00:49:05,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-26 00:49:05,735 INFO L130 BoogieDeclarations]: Found specification of procedure alx_halt [2022-11-26 00:49:05,735 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_halt [2022-11-26 00:49:05,735 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_txbuf [2022-11-26 00:49:05,736 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_txbuf [2022-11-26 00:49:05,736 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2022-11-26 00:49:05,736 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2022-11-26 00:49:05,736 INFO L130 BoogieDeclarations]: Found specification of procedure alx_suspend [2022-11-26 00:49:05,736 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_suspend [2022-11-26 00:49:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_read_phy_reg [2022-11-26 00:49:05,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_read_phy_reg [2022-11-26 00:49:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-26 00:49:05,737 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-26 00:49:05,737 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_reg [2022-11-26 00:49:05,737 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_reg [2022-11-26 00:49:05,738 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-26 00:49:05,738 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-26 00:49:05,738 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-26 00:49:05,738 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-26 00:49:05,738 INFO L130 BoogieDeclarations]: Found specification of procedure alx_pci_error_resume [2022-11-26 00:49:05,739 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_pci_error_resume [2022-11-26 00:49:05,739 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tx_timeout [2022-11-26 00:49:05,739 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tx_timeout [2022-11-26 00:49:05,739 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_enable [2022-11-26 00:49:05,739 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_enable [2022-11-26 00:49:05,739 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-26 00:49:05,740 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-26 00:49:05,740 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem16 [2022-11-26 00:49:05,740 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem16 [2022-11-26 00:49:05,740 INFO L130 BoogieDeclarations]: Found specification of procedure alx_irq_disable [2022-11-26 00:49:05,740 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_irq_disable [2022-11-26 00:49:05,740 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-26 00:49:05,741 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-26 00:49:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-26 00:49:05,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-26 00:49:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-26 00:49:05,741 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-26 00:49:05,741 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-26 00:49:05,742 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-26 00:49:05,742 INFO L130 BoogieDeclarations]: Found specification of procedure alx_activate [2022-11-26 00:49:05,742 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_activate [2022-11-26 00:49:05,742 INFO L130 BoogieDeclarations]: Found specification of procedure alx_remove [2022-11-26 00:49:05,742 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_remove [2022-11-26 00:49:05,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-26 00:49:05,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-26 00:49:05,743 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-26 00:49:05,743 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-26 00:49:05,743 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_msi [2022-11-26 00:49:05,743 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_msi [2022-11-26 00:49:05,744 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-26 00:49:05,744 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-26 00:49:05,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:49:05,744 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-26 00:49:05,744 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-26 00:49:05,744 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_write [2022-11-26 00:49:05,745 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_write [2022-11-26 00:49:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-26 00:49:05,745 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-26 00:49:05,745 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-26 00:49:05,745 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-26 00:49:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_reg [2022-11-26 00:49:05,746 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_reg [2022-11-26 00:49:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2022-11-26 00:49:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_ext [2022-11-26 00:49:05,746 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_ext [2022-11-26 00:49:05,746 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-26 00:49:05,747 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-26 00:49:05,747 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-26 00:49:05,747 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-26 00:49:05,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-26 00:49:05,747 INFO L130 BoogieDeclarations]: Found specification of procedure ethadv_to_hw_cfg [2022-11-26 00:49:05,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ethadv_to_hw_cfg [2022-11-26 00:49:05,748 INFO L130 BoogieDeclarations]: Found specification of procedure alx_stop [2022-11-26 00:49:05,748 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_stop [2022-11-26 00:49:05,748 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-26 00:49:05,748 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-26 00:49:05,748 INFO L130 BoogieDeclarations]: Found specification of procedure alx_resume [2022-11-26 00:49:05,748 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_resume [2022-11-26 00:49:05,749 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-26 00:49:05,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-26 00:49:05,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 00:49:05,749 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_link_check [2022-11-26 00:49:05,749 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_link_check [2022-11-26 00:49:05,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-26 00:49:05,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-26 00:49:05,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:49:05,750 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-26 00:49:05,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-26 00:49:05,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-26 00:49:05,750 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-26 00:49:05,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-26 00:49:05,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-26 00:49:05,751 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_open [2022-11-26 00:49:05,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_open [2022-11-26 00:49:05,751 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_core [2022-11-26 00:49:05,751 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_core [2022-11-26 00:49:05,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-26 00:49:05,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-26 00:49:05,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-26 00:49:05,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-26 00:49:05,752 INFO L130 BoogieDeclarations]: Found specification of procedure alx_update_hw_stats [2022-11-26 00:49:05,752 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_update_hw_stats [2022-11-26 00:49:05,753 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_mem32 [2022-11-26 00:49:05,753 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_mem32 [2022-11-26 00:49:05,753 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-26 00:49:05,753 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-26 00:49:05,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:49:05,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-26 00:49:05,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-26 00:49:05,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-26 00:49:05,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-26 00:49:05,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-26 00:49:05,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-26 00:49:05,754 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_dbg [2022-11-26 00:49:05,755 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_dbg [2022-11-26 00:49:05,755 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-26 00:49:05,755 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-26 00:49:05,755 INFO L130 BoogieDeclarations]: Found specification of procedure alx_netif_stop [2022-11-26 00:49:05,755 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_netif_stop [2022-11-26 00:49:05,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:49:05,756 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-26 00:49:05,756 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-26 00:49:05,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-26 00:49:05,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-26 00:49:05,756 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-26 00:49:05,756 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-26 00:49:05,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:49:05,757 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-26 00:49:05,757 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_giga [2022-11-26 00:49:05,757 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_giga [2022-11-26 00:49:05,757 INFO L130 BoogieDeclarations]: Found specification of procedure alx_poll_controller [2022-11-26 00:49:05,757 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_poll_controller [2022-11-26 00:49:05,758 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_pcie [2022-11-26 00:49:05,758 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_pcie [2022-11-26 00:49:05,758 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-26 00:49:05,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-26 00:49:05,758 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-26 00:49:05,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-26 00:49:05,759 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_is_locked [2022-11-26 00:49:05,759 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_is_locked [2022-11-26 00:49:05,759 INFO L130 BoogieDeclarations]: Found specification of procedure alx_schedule_reset [2022-11-26 00:49:05,759 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_schedule_reset [2022-11-26 00:49:05,759 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_legacy [2022-11-26 00:49:05,759 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_legacy [2022-11-26 00:49:05,759 INFO L130 BoogieDeclarations]: Found specification of procedure alx_refill_rx_ring [2022-11-26 00:49:05,760 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_refill_rx_ring [2022-11-26 00:49:05,760 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_dbg [2022-11-26 00:49:05,760 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_dbg [2022-11-26 00:49:05,760 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-26 00:49:05,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-26 00:49:05,760 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-26 00:49:05,761 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-26 00:49:05,761 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-26 00:49:05,761 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-26 00:49:05,761 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_macaddr [2022-11-26 00:49:05,761 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_macaddr [2022-11-26 00:49:05,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-26 00:49:05,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-26 00:49:05,762 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_selected_regions [2022-11-26 00:49:05,762 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_selected_regions [2022-11-26 00:49:05,762 INFO L130 BoogieDeclarations]: Found specification of procedure alx_speed_to_ethadv [2022-11-26 00:49:05,762 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_speed_to_ethadv [2022-11-26 00:49:05,762 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-26 00:49:05,763 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-26 00:49:05,763 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_rings [2022-11-26 00:49:05,763 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_rings [2022-11-26 00:49:05,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:49:05,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:49:05,763 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-26 00:49:05,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-26 00:49:05,764 INFO L130 BoogieDeclarations]: Found specification of procedure pci_select_bars [2022-11-26 00:49:05,764 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_select_bars [2022-11-26 00:49:05,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-26 00:49:05,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-26 00:49:05,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-26 00:49:05,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-26 00:49:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le32 [2022-11-26 00:49:05,765 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le32 [2022-11-26 00:49:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-26 00:49:05,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-26 00:49:05,765 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-26 00:49:05,765 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-26 00:49:05,766 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-26 00:49:05,766 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-26 00:49:05,766 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-11-26 00:49:05,766 INFO L130 BoogieDeclarations]: Found specification of procedure alx_open [2022-11-26 00:49:05,766 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_open [2022-11-26 00:49:05,767 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-11-26 00:49:05,767 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-11-26 00:49:05,767 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-26 00:49:05,767 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-26 00:49:05,767 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_with_cr [2022-11-26 00:49:05,767 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_with_cr [2022-11-26 00:49:05,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-26 00:49:05,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-26 00:49:05,768 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2022-11-26 00:49:05,768 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2022-11-26 00:49:05,768 INFO L130 BoogieDeclarations]: Found specification of procedure alx_get_supported_speeds [2022-11-26 00:49:05,768 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_get_supported_speeds [2022-11-26 00:49:05,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-26 00:49:05,769 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-26 00:49:05,769 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_macaddr [2022-11-26 00:49:05,769 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_macaddr [2022-11-26 00:49:05,769 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_mem32 [2022-11-26 00:49:05,769 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_mem32 [2022-11-26 00:49:05,770 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-26 00:49:05,770 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-26 00:49:05,770 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-26 00:49:05,770 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-26 00:49:05,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-26 00:49:05,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-26 00:49:05,771 INFO L130 BoogieDeclarations]: Found specification of procedure __netif_schedule [2022-11-26 00:49:05,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __netif_schedule [2022-11-26 00:49:05,771 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-26 00:49:05,771 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-26 00:49:05,771 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-26 00:49:05,771 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-26 00:49:05,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:49:05,772 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-26 00:49:05,772 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-26 00:49:05,772 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit_rings [2022-11-26 00:49:05,772 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit_rings [2022-11-26 00:49:05,772 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_reg [2022-11-26 00:49:05,772 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_reg [2022-11-26 00:49:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-26 00:49:05,773 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-26 00:49:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure alx_free_buffers [2022-11-26 00:49:05,773 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_free_buffers [2022-11-26 00:49:05,773 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-26 00:49:05,773 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-26 00:49:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value_probe [2022-11-26 00:49:05,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value_probe [2022-11-26 00:49:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:49:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:49:05,774 INFO L130 BoogieDeclarations]: Found specification of procedure alx_wait_mdio_idle [2022-11-26 00:49:05,774 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_wait_mdio_idle [2022-11-26 00:49:05,775 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-26 00:49:05,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-26 00:49:05,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-26 00:49:05,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-26 00:49:05,775 INFO L130 BoogieDeclarations]: Found specification of procedure alx_intr_handle [2022-11-26 00:49:05,776 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_intr_handle [2022-11-26 00:49:05,776 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-26 00:49:05,776 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-26 00:49:05,776 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-26 00:49:05,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-26 00:49:05,776 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-26 00:49:05,777 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-26 00:49:05,777 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-26 00:49:05,777 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-26 00:49:05,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-26 00:49:05,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-26 00:49:05,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-26 00:49:05,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-26 00:49:05,778 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-26 00:49:05,778 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-26 00:49:05,778 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_alx_driver_exit_15_2 [2022-11-26 00:49:05,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_alx_driver_exit_15_2 [2022-11-26 00:49:05,778 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-26 00:49:05,779 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-26 00:49:05,779 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-26 00:49:05,779 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-26 00:49:05,779 INFO L130 BoogieDeclarations]: Found specification of procedure alx_is_rev_a [2022-11-26 00:49:05,779 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_is_rev_a [2022-11-26 00:49:05,780 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-26 00:49:05,780 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-26 00:49:05,780 INFO L130 BoogieDeclarations]: Found specification of procedure alx_read_phy_core [2022-11-26 00:49:05,780 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_read_phy_core [2022-11-26 00:49:05,780 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-26 00:49:05,780 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-26 00:49:05,781 INFO L130 BoogieDeclarations]: Found specification of procedure alx_write_phy_ext [2022-11-26 00:49:05,781 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_write_phy_ext [2022-11-26 00:49:05,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:49:05,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-26 00:49:05,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-26 00:49:05,781 INFO L130 BoogieDeclarations]: Found specification of procedure alx_post_phy_link [2022-11-26 00:49:05,782 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_post_phy_link [2022-11-26 00:49:05,782 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-26 00:49:05,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-26 00:49:05,782 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reinit [2022-11-26 00:49:05,782 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reinit [2022-11-26 00:49:05,782 INFO L130 BoogieDeclarations]: Found specification of procedure alx_tpd_avail [2022-11-26 00:49:05,783 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_tpd_avail [2022-11-26 00:49:05,783 INFO L130 BoogieDeclarations]: Found specification of procedure alx_setup_speed_duplex [2022-11-26 00:49:05,783 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_setup_speed_duplex [2022-11-26 00:49:05,783 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-26 00:49:05,783 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-26 00:49:05,783 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_stop [2022-11-26 00:49:05,784 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_stop [2022-11-26 00:49:05,784 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-26 00:49:05,784 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-26 00:49:05,784 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-26 00:49:05,784 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-26 00:49:05,784 INFO L130 BoogieDeclarations]: Found specification of procedure alx_enable_aspm [2022-11-26 00:49:05,785 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_enable_aspm [2022-11-26 00:49:05,785 INFO L130 BoogieDeclarations]: Found specification of procedure alx_set_rx_mode [2022-11-26 00:49:05,785 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_set_rx_mode [2022-11-26 00:49:05,785 INFO L130 BoogieDeclarations]: Found specification of procedure alx_hw_revision [2022-11-26 00:49:05,785 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_hw_revision [2022-11-26 00:49:05,785 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_set_rx_mode [2022-11-26 00:49:05,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_set_rx_mode [2022-11-26 00:49:05,786 INFO L130 BoogieDeclarations]: Found specification of procedure __alx_write_phy_reg [2022-11-26 00:49:05,786 INFO L138 BoogieDeclarations]: Found implementation of procedure __alx_write_phy_reg [2022-11-26 00:49:05,786 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-11-26 00:49:05,786 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-11-26 00:49:05,786 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-11-26 00:49:05,787 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-11-26 00:49:05,787 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-26 00:49:05,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-26 00:49:05,787 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-26 00:49:05,787 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-26 00:49:05,787 INFO L130 BoogieDeclarations]: Found specification of procedure dql_avail [2022-11-26 00:49:05,788 INFO L138 BoogieDeclarations]: Found implementation of procedure dql_avail [2022-11-26 00:49:05,788 INFO L130 BoogieDeclarations]: Found specification of procedure alx_configure [2022-11-26 00:49:05,788 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_configure [2022-11-26 00:49:05,788 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_phy [2022-11-26 00:49:05,788 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_phy [2022-11-26 00:49:05,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2022-11-26 00:49:05,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2022-11-26 00:49:05,789 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-26 00:49:05,789 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-26 00:49:05,789 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-26 00:49:05,789 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-26 00:49:05,789 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-26 00:49:05,789 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-26 00:49:05,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:49:05,790 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-26 00:49:05,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-26 00:49:05,790 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le64 [2022-11-26 00:49:05,790 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le64 [2022-11-26 00:49:05,790 INFO L130 BoogieDeclarations]: Found specification of procedure alx_reset_mac [2022-11-26 00:49:05,791 INFO L138 BoogieDeclarations]: Found implementation of procedure alx_reset_mac [2022-11-26 00:49:06,964 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:49:06,969 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:49:07,204 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-26 00:49:18,320 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-26 00:49:18,717 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:49:21,400 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:49:21,400 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-26 00:49:21,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:49:21 BoogieIcfgContainer [2022-11-26 00:49:21,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:49:21,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:49:21,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:49:21,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:49:21,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:48:59" (1/3) ... [2022-11-26 00:49:21,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726bf1fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:49:21, skipping insertion in model container [2022-11-26 00:49:21,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:49:04" (2/3) ... [2022-11-26 00:49:21,421 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@726bf1fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:49:21, skipping insertion in model container [2022-11-26 00:49:21,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:49:21" (3/3) ... [2022-11-26 00:49:21,423 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-usb-dev_drivers-net-ethernet-atheros-alx-alx.cil.i [2022-11-26 00:49:21,444 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:49:21,445 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:49:21,568 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:49:21,579 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;@1ed37c52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:49:21,579 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:49:21,593 INFO L276 IsEmpty]: Start isEmpty. Operand has 2317 states, 1331 states have (on average 1.270473328324568) internal successors, (1691), 1376 states have internal predecessors, (1691), 828 states have call successors, (828), 160 states have call predecessors, (828), 159 states have return successors, (819), 804 states have call predecessors, (819), 819 states have call successors, (819) [2022-11-26 00:49:21,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-26 00:49:21,631 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:21,632 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:49:21,633 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:49:21,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:21,640 INFO L85 PathProgramCache]: Analyzing trace with hash -54691785, now seen corresponding path program 1 times [2022-11-26 00:49:21,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:21,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565144255] [2022-11-26 00:49:21,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:21,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:22,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:23,085 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2022-11-26 00:49:23,086 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:23,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565144255] [2022-11-26 00:49:23,087 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565144255] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:23,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:23,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:49:23,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426013715] [2022-11-26 00:49:23,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:23,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:49:23,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:23,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:49:23,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:49:23,152 INFO L87 Difference]: Start difference. First operand has 2317 states, 1331 states have (on average 1.270473328324568) internal successors, (1691), 1376 states have internal predecessors, (1691), 828 states have call successors, (828), 160 states have call predecessors, (828), 159 states have return successors, (819), 804 states have call predecessors, (819), 819 states have call successors, (819) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-26 00:49:27,532 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 00:49:30,332 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 00:49:30,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:30,832 INFO L93 Difference]: Finished difference Result 6622 states and 9543 transitions. [2022-11-26 00:49:30,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:49:30,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 180 [2022-11-26 00:49:30,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:30,888 INFO L225 Difference]: With dead ends: 6622 [2022-11-26 00:49:30,888 INFO L226 Difference]: Without dead ends: 4325 [2022-11-26 00:49:30,907 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 00:49:30,910 INFO L413 NwaCegarLoop]: 3603 mSDtfsCounter, 2962 mSDsluCounter, 2843 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2962 SdHoareTripleChecker+Valid, 6446 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:30,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2962 Valid, 6446 Invalid, 841 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 832 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-11-26 00:49:30,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4325 states. [2022-11-26 00:49:31,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4325 to 4322. [2022-11-26 00:49:31,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4322 states, 2486 states have (on average 1.262670957361223) internal successors, (3139), 2563 states have internal predecessors, (3139), 1528 states have call successors, (1528), 307 states have call predecessors, (1528), 306 states have return successors, (1525), 1503 states have call predecessors, (1525), 1525 states have call successors, (1525) [2022-11-26 00:49:31,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4322 states to 4322 states and 6192 transitions. [2022-11-26 00:49:31,582 INFO L78 Accepts]: Start accepts. Automaton has 4322 states and 6192 transitions. Word has length 180 [2022-11-26 00:49:31,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:31,586 INFO L495 AbstractCegarLoop]: Abstraction has 4322 states and 6192 transitions. [2022-11-26 00:49:31,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-26 00:49:31,590 INFO L276 IsEmpty]: Start isEmpty. Operand 4322 states and 6192 transitions. [2022-11-26 00:49:31,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-11-26 00:49:31,615 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:31,616 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:49:31,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:49:31,617 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:49:31,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:31,618 INFO L85 PathProgramCache]: Analyzing trace with hash -193446582, now seen corresponding path program 1 times [2022-11-26 00:49:31,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:31,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386363990] [2022-11-26 00:49:31,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:31,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:31,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:32,567 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2022-11-26 00:49:32,567 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:32,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386363990] [2022-11-26 00:49:32,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386363990] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:32,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:32,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:49:32,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508672231] [2022-11-26 00:49:32,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:32,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:49:32,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:32,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:49:32,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:49:32,574 INFO L87 Difference]: Start difference. First operand 4322 states and 6192 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-26 00:49:35,176 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 00:49:39,465 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 00:49:39,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:39,914 INFO L93 Difference]: Finished difference Result 12358 states and 17667 transitions. [2022-11-26 00:49:39,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:49:39,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 199 [2022-11-26 00:49:39,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:39,981 INFO L225 Difference]: With dead ends: 12358 [2022-11-26 00:49:39,981 INFO L226 Difference]: Without dead ends: 8069 [2022-11-26 00:49:40,006 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 00:49:40,007 INFO L413 NwaCegarLoop]: 3592 mSDtfsCounter, 2662 mSDsluCounter, 2811 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 19 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2662 SdHoareTripleChecker+Valid, 6403 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:40,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2662 Valid, 6403 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 881 Invalid, 2 Unknown, 0 Unchecked, 6.8s Time] [2022-11-26 00:49:40,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8069 states. [2022-11-26 00:49:40,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8069 to 8058. [2022-11-26 00:49:40,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8058 states, 4651 states have (on average 1.257364007740271) internal successors, (5848), 4794 states have internal predecessors, (5848), 2819 states have call successors, (2819), 588 states have call predecessors, (2819), 586 states have return successors, (2816), 2769 states have call predecessors, (2816), 2816 states have call successors, (2816) [2022-11-26 00:49:40,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8058 states to 8058 states and 11483 transitions. [2022-11-26 00:49:40,637 INFO L78 Accepts]: Start accepts. Automaton has 8058 states and 11483 transitions. Word has length 199 [2022-11-26 00:49:40,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:40,638 INFO L495 AbstractCegarLoop]: Abstraction has 8058 states and 11483 transitions. [2022-11-26 00:49:40,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-26 00:49:40,639 INFO L276 IsEmpty]: Start isEmpty. Operand 8058 states and 11483 transitions. [2022-11-26 00:49:40,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-26 00:49:40,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:40,647 INFO L195 NwaCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 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 00:49:40,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:49:40,648 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:49:40,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:40,659 INFO L85 PathProgramCache]: Analyzing trace with hash 169121026, now seen corresponding path program 1 times [2022-11-26 00:49:40,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:40,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737070423] [2022-11-26 00:49:40,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:40,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:40,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:41,336 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 995 trivial. 0 not checked. [2022-11-26 00:49:41,336 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:41,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737070423] [2022-11-26 00:49:41,338 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737070423] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:41,338 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:41,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:49:41,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373078238] [2022-11-26 00:49:41,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:41,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:49:41,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:41,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:49:41,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:49:41,344 INFO L87 Difference]: Start difference. First operand 8058 states and 11483 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-26 00:49:43,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:49:48,031 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 00:49:48,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:48,539 INFO L93 Difference]: Finished difference Result 19861 states and 28284 transitions. [2022-11-26 00:49:48,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:49:48,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 212 [2022-11-26 00:49:48,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:48,628 INFO L225 Difference]: With dead ends: 19861 [2022-11-26 00:49:48,628 INFO L226 Difference]: Without dead ends: 11836 [2022-11-26 00:49:48,675 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 00:49:48,679 INFO L413 NwaCegarLoop]: 3573 mSDtfsCounter, 2893 mSDsluCounter, 2829 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2893 SdHoareTripleChecker+Valid, 6402 SdHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:48,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2893 Valid, 6402 Invalid, 861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 847 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-11-26 00:49:48,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11836 states. [2022-11-26 00:49:49,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11836 to 11822. [2022-11-26 00:49:49,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11822 states, 6820 states have (on average 1.2526392961876833) internal successors, (8543), 7041 states have internal predecessors, (8543), 4129 states have call successors, (4129), 874 states have call predecessors, (4129), 871 states have return successors, (4126), 4046 states have call predecessors, (4126), 4126 states have call successors, (4126) [2022-11-26 00:49:49,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11822 states to 11822 states and 16798 transitions. [2022-11-26 00:49:49,585 INFO L78 Accepts]: Start accepts. Automaton has 11822 states and 16798 transitions. Word has length 212 [2022-11-26 00:49:49,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:49:49,586 INFO L495 AbstractCegarLoop]: Abstraction has 11822 states and 16798 transitions. [2022-11-26 00:49:49,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-26 00:49:49,587 INFO L276 IsEmpty]: Start isEmpty. Operand 11822 states and 16798 transitions. [2022-11-26 00:49:49,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-26 00:49:49,596 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:49:49,596 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:49:49,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:49:49,597 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:49:49,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:49:49,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1122544168, now seen corresponding path program 1 times [2022-11-26 00:49:49,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:49:49,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775856773] [2022-11-26 00:49:49,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:49:49,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:49:49,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:49:50,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1127 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1127 trivial. 0 not checked. [2022-11-26 00:49:50,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:49:50,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775856773] [2022-11-26 00:49:50,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775856773] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:49:50,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:49:50,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:49:50,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377070972] [2022-11-26 00:49:50,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:49:50,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:49:50,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:49:50,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:49:50,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:49:50,773 INFO L87 Difference]: Start difference. First operand 11822 states and 16798 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-26 00:49:56,311 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 00:49:58,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:49:58,463 INFO L93 Difference]: Finished difference Result 19686 states and 27972 transitions. [2022-11-26 00:49:58,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:49:58,464 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 222 [2022-11-26 00:49:58,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:49:58,596 INFO L225 Difference]: With dead ends: 19686 [2022-11-26 00:49:58,596 INFO L226 Difference]: Without dead ends: 19647 [2022-11-26 00:49:58,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:49:58,617 INFO L413 NwaCegarLoop]: 3591 mSDtfsCounter, 2983 mSDsluCounter, 6395 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2983 SdHoareTripleChecker+Valid, 9986 SdHoareTripleChecker+Invalid, 1226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:49:58,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2983 Valid, 9986 Invalid, 1226 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1225 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-11-26 00:49:58,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19647 states. [2022-11-26 00:49:59,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19647 to 19644. [2022-11-26 00:49:59,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19644 states, 11338 states have (on average 1.252690068795202) internal successors, (14203), 11699 states have internal predecessors, (14203), 6849 states have call successors, (6849), 1458 states have call predecessors, (6849), 1455 states have return successors, (6846), 6718 states have call predecessors, (6846), 6846 states have call successors, (6846) [2022-11-26 00:50:00,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19644 states to 19644 states and 27898 transitions. [2022-11-26 00:50:00,023 INFO L78 Accepts]: Start accepts. Automaton has 19644 states and 27898 transitions. Word has length 222 [2022-11-26 00:50:00,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:00,025 INFO L495 AbstractCegarLoop]: Abstraction has 19644 states and 27898 transitions. [2022-11-26 00:50:00,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-11-26 00:50:00,025 INFO L276 IsEmpty]: Start isEmpty. Operand 19644 states and 27898 transitions. [2022-11-26 00:50:00,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-11-26 00:50:00,045 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:00,045 INFO L195 NwaCegarLoop]: trace histogram [18, 16, 16, 16, 16, 16, 16, 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] [2022-11-26 00:50:00,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:50:00,046 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:50:00,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:00,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1580320998, now seen corresponding path program 1 times [2022-11-26 00:50:00,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:00,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094331010] [2022-11-26 00:50:00,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:00,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:00,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:00,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1034 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1028 trivial. 0 not checked. [2022-11-26 00:50:00,566 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:00,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094331010] [2022-11-26 00:50:00,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094331010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:00,566 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:00,566 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:50:00,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80985343] [2022-11-26 00:50:00,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:00,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:50:00,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:00,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:50:00,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:50:00,571 INFO L87 Difference]: Start difference. First operand 19644 states and 27898 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-26 00:50:03,772 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 00:50:06,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:06,698 INFO L93 Difference]: Finished difference Result 41223 states and 58167 transitions. [2022-11-26 00:50:06,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:50:06,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 238 [2022-11-26 00:50:06,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:06,823 INFO L225 Difference]: With dead ends: 41223 [2022-11-26 00:50:06,823 INFO L226 Difference]: Without dead ends: 21612 [2022-11-26 00:50:06,924 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 00:50:06,925 INFO L413 NwaCegarLoop]: 3448 mSDtfsCounter, 2334 mSDsluCounter, 2784 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2334 SdHoareTripleChecker+Valid, 6232 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:06,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2334 Valid, 6232 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 869 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2022-11-26 00:50:06,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21612 states. [2022-11-26 00:50:08,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21612 to 21598. [2022-11-26 00:50:08,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21598 states, 12414 states have (on average 1.2464958917351376) internal successors, (15474), 12843 states have internal predecessors, (15474), 7392 states have call successors, (7392), 1799 states have call predecessors, (7392), 1790 states have return successors, (7395), 7209 states have call predecessors, (7395), 7389 states have call successors, (7395) [2022-11-26 00:50:08,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21598 states to 21598 states and 30261 transitions. [2022-11-26 00:50:08,556 INFO L78 Accepts]: Start accepts. Automaton has 21598 states and 30261 transitions. Word has length 238 [2022-11-26 00:50:08,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:08,557 INFO L495 AbstractCegarLoop]: Abstraction has 21598 states and 30261 transitions. [2022-11-26 00:50:08,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-26 00:50:08,557 INFO L276 IsEmpty]: Start isEmpty. Operand 21598 states and 30261 transitions. [2022-11-26 00:50:08,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-11-26 00:50:08,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:08,746 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 16, 16, 16, 16, 5, 5, 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] [2022-11-26 00:50:08,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:50:08,746 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:50:08,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:08,747 INFO L85 PathProgramCache]: Analyzing trace with hash 712360235, now seen corresponding path program 1 times [2022-11-26 00:50:08,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:08,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339695776] [2022-11-26 00:50:08,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:08,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:08,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:09,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1133 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1130 trivial. 0 not checked. [2022-11-26 00:50:09,457 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:09,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339695776] [2022-11-26 00:50:09,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339695776] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:09,458 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:09,458 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:50:09,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174766672] [2022-11-26 00:50:09,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:09,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:50:09,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:09,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:50:09,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:50:09,461 INFO L87 Difference]: Start difference. First operand 21598 states and 30261 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-26 00:50:14,228 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 00:50:16,550 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 00:50:17,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:17,801 INFO L93 Difference]: Finished difference Result 51194 states and 71787 transitions. [2022-11-26 00:50:17,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:50:17,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 246 [2022-11-26 00:50:17,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:17,959 INFO L225 Difference]: With dead ends: 51194 [2022-11-26 00:50:17,959 INFO L226 Difference]: Without dead ends: 31002 [2022-11-26 00:50:18,029 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 00:50:18,029 INFO L413 NwaCegarLoop]: 5106 mSDtfsCounter, 2656 mSDsluCounter, 2809 mSDsCounter, 0 mSdLazyCounter, 1179 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2656 SdHoareTripleChecker+Valid, 7915 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1179 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:18,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2656 Valid, 7915 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1179 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-11-26 00:50:18,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31002 states. [2022-11-26 00:50:19,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31002 to 30983. [2022-11-26 00:50:19,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30983 states, 17824 states have (on average 1.2446140035906643) internal successors, (22184), 18439 states have internal predecessors, (22184), 10578 states have call successors, (10578), 2594 states have call predecessors, (10578), 2579 states have return successors, (10583), 10309 states have call predecessors, (10583), 10575 states have call successors, (10583) [2022-11-26 00:50:19,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30983 states to 30983 states and 43345 transitions. [2022-11-26 00:50:19,921 INFO L78 Accepts]: Start accepts. Automaton has 30983 states and 43345 transitions. Word has length 246 [2022-11-26 00:50:19,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:19,923 INFO L495 AbstractCegarLoop]: Abstraction has 30983 states and 43345 transitions. [2022-11-26 00:50:19,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-26 00:50:19,923 INFO L276 IsEmpty]: Start isEmpty. Operand 30983 states and 43345 transitions. [2022-11-26 00:50:19,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2022-11-26 00:50:19,952 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:19,953 INFO L195 NwaCegarLoop]: trace histogram [21, 16, 16, 16, 16, 16, 16, 6, 6, 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] [2022-11-26 00:50:19,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:50:19,953 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:50:19,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:19,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1928601196, now seen corresponding path program 1 times [2022-11-26 00:50:19,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:19,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710704373] [2022-11-26 00:50:19,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:19,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:20,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1192 trivial. 0 not checked. [2022-11-26 00:50:20,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:20,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710704373] [2022-11-26 00:50:20,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710704373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:20,530 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:20,530 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:50:20,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404865210] [2022-11-26 00:50:20,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:20,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:50:20,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:20,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:50:20,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:50:20,533 INFO L87 Difference]: Start difference. First operand 30983 states and 43345 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-11-26 00:50:25,637 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 00:50:29,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:50:30,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:30,720 INFO L93 Difference]: Finished difference Result 75004 states and 105015 transitions. [2022-11-26 00:50:30,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:50:30,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 269 [2022-11-26 00:50:30,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:31,039 INFO L225 Difference]: With dead ends: 75004 [2022-11-26 00:50:31,040 INFO L226 Difference]: Without dead ends: 45427 [2022-11-26 00:50:31,202 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 00:50:31,203 INFO L413 NwaCegarLoop]: 5385 mSDtfsCounter, 2893 mSDsluCounter, 2827 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2893 SdHoareTripleChecker+Valid, 8212 SdHoareTripleChecker+Invalid, 1225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:31,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2893 Valid, 8212 Invalid, 1225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1215 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2022-11-26 00:50:31,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45427 states. [2022-11-26 00:50:34,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45427 to 45399. [2022-11-26 00:50:34,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45399 states, 26107 states have (on average 1.2436511280499483) internal successors, (32468), 27025 states have internal predecessors, (32468), 15506 states have call successors, (15506), 3806 states have call predecessors, (15506), 3784 states have return successors, (15515), 15098 states have call predecessors, (15515), 15503 states have call successors, (15515) [2022-11-26 00:50:34,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45399 states to 45399 states and 63489 transitions. [2022-11-26 00:50:34,716 INFO L78 Accepts]: Start accepts. Automaton has 45399 states and 63489 transitions. Word has length 269 [2022-11-26 00:50:34,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:34,717 INFO L495 AbstractCegarLoop]: Abstraction has 45399 states and 63489 transitions. [2022-11-26 00:50:34,717 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-11-26 00:50:34,717 INFO L276 IsEmpty]: Start isEmpty. Operand 45399 states and 63489 transitions. [2022-11-26 00:50:34,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-11-26 00:50:34,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:34,768 INFO L195 NwaCegarLoop]: trace histogram [23, 16, 16, 16, 16, 16, 16, 6, 6, 4, 4, 4, 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] [2022-11-26 00:50:34,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:50:34,769 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:50:34,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:34,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1837952694, now seen corresponding path program 1 times [2022-11-26 00:50:34,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:34,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530074104] [2022-11-26 00:50:34,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:34,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:35,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:36,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1309 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1309 trivial. 0 not checked. [2022-11-26 00:50:36,383 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:36,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530074104] [2022-11-26 00:50:36,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530074104] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:36,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:36,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:50:36,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595603508] [2022-11-26 00:50:36,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:36,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:50:36,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:36,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:50:36,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:50:36,387 INFO L87 Difference]: Start difference. First operand 45399 states and 63489 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-26 00:50:40,136 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 00:50:41,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:50:43,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:50:45,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:50:47,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:50:47,272 INFO L93 Difference]: Finished difference Result 45432 states and 63524 transitions. [2022-11-26 00:50:47,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:50:47,273 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 294 [2022-11-26 00:50:47,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:50:47,468 INFO L225 Difference]: With dead ends: 45432 [2022-11-26 00:50:47,468 INFO L226 Difference]: Without dead ends: 45430 [2022-11-26 00:50:47,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:50:47,490 INFO L413 NwaCegarLoop]: 3431 mSDtfsCounter, 2280 mSDsluCounter, 6236 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2280 SdHoareTripleChecker+Valid, 9667 SdHoareTripleChecker+Invalid, 1228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:50:47,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2280 Valid, 9667 Invalid, 1228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1226 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2022-11-26 00:50:47,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45430 states. [2022-11-26 00:50:49,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45430 to 45399. [2022-11-26 00:50:49,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45399 states, 26107 states have (on average 1.2434596085341096) internal successors, (32463), 27025 states have internal predecessors, (32463), 15506 states have call successors, (15506), 3806 states have call predecessors, (15506), 3784 states have return successors, (15515), 15098 states have call predecessors, (15515), 15503 states have call successors, (15515) [2022-11-26 00:50:50,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45399 states to 45399 states and 63484 transitions. [2022-11-26 00:50:50,090 INFO L78 Accepts]: Start accepts. Automaton has 45399 states and 63484 transitions. Word has length 294 [2022-11-26 00:50:50,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:50:50,092 INFO L495 AbstractCegarLoop]: Abstraction has 45399 states and 63484 transitions. [2022-11-26 00:50:50,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-11-26 00:50:50,092 INFO L276 IsEmpty]: Start isEmpty. Operand 45399 states and 63484 transitions. [2022-11-26 00:50:50,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2022-11-26 00:50:50,420 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:50:50,420 INFO L195 NwaCegarLoop]: trace histogram [25, 18, 18, 18, 18, 18, 18, 11, 11, 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, 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 00:50:50,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 00:50:50,421 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:50:50,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:50:50,421 INFO L85 PathProgramCache]: Analyzing trace with hash -397975034, now seen corresponding path program 1 times [2022-11-26 00:50:50,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:50:50,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082407545] [2022-11-26 00:50:50,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:50:50,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:50:50,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:50:52,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1735 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1735 trivial. 0 not checked. [2022-11-26 00:50:52,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:50:52,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082407545] [2022-11-26 00:50:52,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082407545] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:50:52,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:50:52,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:50:52,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84132680] [2022-11-26 00:50:52,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:50:52,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:50:52,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:50:52,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:50:52,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:50:52,833 INFO L87 Difference]: Start difference. First operand 45399 states and 63484 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-26 00:50:56,992 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 00:50:59,348 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 00:51:02,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:02,253 INFO L93 Difference]: Finished difference Result 76077 states and 106635 transitions. [2022-11-26 00:51:02,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:51:02,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) Word has length 432 [2022-11-26 00:51:02,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:02,933 INFO L225 Difference]: With dead ends: 76077 [2022-11-26 00:51:02,933 INFO L226 Difference]: Without dead ends: 76075 [2022-11-26 00:51:02,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:51:02,979 INFO L413 NwaCegarLoop]: 3644 mSDtfsCounter, 3119 mSDsluCounter, 6449 mSDsCounter, 0 mSdLazyCounter, 1221 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3119 SdHoareTripleChecker+Valid, 10093 SdHoareTripleChecker+Invalid, 1224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1221 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:02,980 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3119 Valid, 10093 Invalid, 1224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1221 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-11-26 00:51:03,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76075 states. [2022-11-26 00:51:07,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76075 to 76015. [2022-11-26 00:51:07,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76015 states, 43720 states have (on average 1.245128087831656) internal successors, (54437), 45273 states have internal predecessors, (54437), 26051 states have call successors, (26051), 6285 states have call predecessors, (26051), 6242 states have return successors, (26072), 25346 states have call predecessors, (26072), 26048 states have call successors, (26072) [2022-11-26 00:51:07,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76015 states to 76015 states and 106560 transitions. [2022-11-26 00:51:07,995 INFO L78 Accepts]: Start accepts. Automaton has 76015 states and 106560 transitions. Word has length 432 [2022-11-26 00:51:07,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:07,996 INFO L495 AbstractCegarLoop]: Abstraction has 76015 states and 106560 transitions. [2022-11-26 00:51:07,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (59), 2 states have call predecessors, (59), 2 states have call successors, (59) [2022-11-26 00:51:07,996 INFO L276 IsEmpty]: Start isEmpty. Operand 76015 states and 106560 transitions. [2022-11-26 00:51:08,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2022-11-26 00:51:08,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:08,062 INFO L195 NwaCegarLoop]: trace histogram [27, 18, 18, 18, 18, 18, 18, 13, 13, 4, 4, 4, 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, 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] [2022-11-26 00:51:08,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:51:08,062 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:51:08,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:08,063 INFO L85 PathProgramCache]: Analyzing trace with hash -143956960, now seen corresponding path program 1 times [2022-11-26 00:51:08,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:08,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518259333] [2022-11-26 00:51:08,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:08,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:10,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1926 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1926 trivial. 0 not checked. [2022-11-26 00:51:10,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:10,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518259333] [2022-11-26 00:51:10,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518259333] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:10,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:10,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:51:10,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589505406] [2022-11-26 00:51:10,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:10,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:51:10,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:10,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:51:10,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:51:10,557 INFO L87 Difference]: Start difference. First operand 76015 states and 106560 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-11-26 00:51:14,310 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 00:51:16,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:51:21,775 WARN L539 Checker$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 00:51:22,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:22,575 INFO L93 Difference]: Finished difference Result 76025 states and 106569 transitions. [2022-11-26 00:51:22,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:51:22,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) Word has length 469 [2022-11-26 00:51:22,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:22,973 INFO L225 Difference]: With dead ends: 76025 [2022-11-26 00:51:22,974 INFO L226 Difference]: Without dead ends: 75880 [2022-11-26 00:51:23,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:51:23,016 INFO L413 NwaCegarLoop]: 3640 mSDtfsCounter, 3106 mSDsluCounter, 6444 mSDsCounter, 0 mSdLazyCounter, 1220 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3106 SdHoareTripleChecker+Valid, 10084 SdHoareTripleChecker+Invalid, 1223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1220 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:23,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3106 Valid, 10084 Invalid, 1223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1220 Invalid, 3 Unknown, 0 Unchecked, 9.2s Time] [2022-11-26 00:51:23,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75880 states. [2022-11-26 00:51:27,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75880 to 75877. [2022-11-26 00:51:27,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75877 states, 43696 states have (on average 1.2440269132186013) internal successors, (54359), 45195 states have internal predecessors, (54359), 25943 states have call successors, (25943), 6267 states have call predecessors, (25943), 6236 states have return successors, (25964), 25304 states have call predecessors, (25964), 25940 states have call successors, (25964) [2022-11-26 00:51:27,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75877 states to 75877 states and 106266 transitions. [2022-11-26 00:51:27,825 INFO L78 Accepts]: Start accepts. Automaton has 75877 states and 106266 transitions. Word has length 469 [2022-11-26 00:51:27,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:51:27,826 INFO L495 AbstractCegarLoop]: Abstraction has 75877 states and 106266 transitions. [2022-11-26 00:51:27,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (64), 2 states have call predecessors, (64), 2 states have call successors, (64) [2022-11-26 00:51:27,827 INFO L276 IsEmpty]: Start isEmpty. Operand 75877 states and 106266 transitions. [2022-11-26 00:51:27,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2022-11-26 00:51:27,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:51:27,923 INFO L195 NwaCegarLoop]: trace histogram [28, 18, 18, 18, 18, 18, 18, 13, 13, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:51:27,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 00:51:27,924 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_return_value_probeErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_final_stateErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:51:27,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:51:27,925 INFO L85 PathProgramCache]: Analyzing trace with hash 72654942, now seen corresponding path program 1 times [2022-11-26 00:51:27,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:51:27,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822534842] [2022-11-26 00:51:27,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:51:27,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:51:28,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:51:29,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 1986 trivial. 0 not checked. [2022-11-26 00:51:29,266 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:51:29,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822534842] [2022-11-26 00:51:29,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822534842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:51:29,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:51:29,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:51:29,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591751531] [2022-11-26 00:51:29,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:51:29,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:51:29,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:51:29,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:51:29,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:51:29,269 INFO L87 Difference]: Start difference. First operand 75877 states and 106266 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 3 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) [2022-11-26 00:51:32,813 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 00:51:38,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:51:38,638 INFO L93 Difference]: Finished difference Result 163715 states and 229408 transitions. [2022-11-26 00:51:38,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:51:38,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 3 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) Word has length 508 [2022-11-26 00:51:38,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:51:39,371 INFO L225 Difference]: With dead ends: 163715 [2022-11-26 00:51:39,371 INFO L226 Difference]: Without dead ends: 102603 [2022-11-26 00:51:39,661 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 00:51:39,661 INFO L413 NwaCegarLoop]: 3509 mSDtfsCounter, 2490 mSDsluCounter, 2784 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2490 SdHoareTripleChecker+Valid, 6293 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:51:39,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2490 Valid, 6293 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 869 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-26 00:51:39,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102603 states.