./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.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_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/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_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/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_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/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 36bb93ca3621bc77a2fce568a30c9f1e07b847a50c59f68bc973979594911c40 --- 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 00:25:21,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:25:21,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:25:21,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:25:21,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:25:21,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:25:21,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:25:21,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:25:21,792 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:25:21,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:25:21,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:25:21,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:25:21,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:25:21,806 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:25:21,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:25:21,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:25:21,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:25:21,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:25:21,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:25:21,824 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:25:21,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:25:21,831 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:25:21,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:25:21,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:25:21,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:25:21,845 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:25:21,845 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:25:21,846 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:25:21,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:25:21,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:25:21,851 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:25:21,852 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:25:21,853 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:25:21,855 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:25:21,856 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:25:21,856 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:25:21,857 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:25:21,857 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:25:21,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:25:21,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:25:21,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:25:21,860 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:25:21,896 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:25:21,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:25:21,896 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:25:21,896 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:25:21,897 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:25:21,897 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:25:21,897 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:25:21,898 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:25:21,898 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:25:21,898 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:25:21,898 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:25:21,898 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:25:21,898 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:25:21,899 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:25:21,899 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:25:21,899 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:25:21,899 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:25:21,899 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:25:21,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:25:21,900 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:25:21,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:25:21,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:25:21,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:25:21,901 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:25:21,901 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:25:21,901 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:25:21,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:25:21,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:25:21,902 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:25:21,902 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:25:21,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:25:21,903 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:25:21,903 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:25:21,903 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:25:21,904 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:25:21,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:25:21,904 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:25:21,904 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:25:21,905 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_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36bb93ca3621bc77a2fce568a30c9f1e07b847a50c59f68bc973979594911c40 [2022-11-26 00:25:22,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:25:22,191 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:25:22,194 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:25:22,195 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:25:22,196 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:25:22,197 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i [2022-11-26 00:25:25,245 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:25:25,922 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:25:25,925 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i [2022-11-26 00:25:25,986 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/data/5ecc909f5/8ac04723feaf4bb7af3102d4c9a4c525/FLAG6b32d8a1f [2022-11-26 00:25:26,004 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/data/5ecc909f5/8ac04723feaf4bb7af3102d4c9a4c525 [2022-11-26 00:25:26,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:25:26,007 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:25:26,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:25:26,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:25:26,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:25:26,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:25:26" (1/1) ... [2022-11-26 00:25:26,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51c64b74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:26, skipping insertion in model container [2022-11-26 00:25:26,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:25:26" (1/1) ... [2022-11-26 00:25:26,025 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:25:26,217 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:25:27,269 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-26 00:25:27,287 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_trylock [2022-11-26 00:25:27,301 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-26 00:25:27,314 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-26 00:25:27,353 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-11-26 00:25:27,467 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-26 00:25:27,468 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-26 00:25:27,469 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-26 00:25:27,472 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-11-26 00:25:27,478 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-26 00:25:27,479 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-26 00:25:27,481 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-26 00:25:27,481 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-11-26 00:25:27,536 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:25:27,546 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:25:27,547 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-26 00:25:27,561 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-26 00:25:27,574 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-26 00:25:27,583 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-26 00:25:27,597 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-11-26 00:25:27,650 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-26 00:25:27,657 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:25:27,660 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-26 00:25:27,667 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-11-26 00:25:27,774 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-26 00:25:27,776 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:25:27,831 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-26 00:25:27,834 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-26 00:25:27,846 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:25:27,847 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:27,890 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-26 00:25:27,946 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-11-26 00:25:28,034 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-11-26 00:25:28,086 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-26 00:25:28,155 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:28,160 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:28,171 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:28,176 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:25:28,184 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:28,204 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:25:28,205 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:28,206 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-26 00:25:28,207 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:28,215 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:28,216 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:28,225 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-11-26 00:25:28,233 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-11-26 00:25:28,236 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-11-26 00:25:28,243 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-11-26 00:25:28,245 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:28,254 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:28,255 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:28,257 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-11-26 00:25:28,257 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:28,284 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:25:28,292 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:28,294 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:28,294 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:28,301 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:28,307 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:28,308 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:28,315 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:28,317 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:28,317 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:28,364 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:28,365 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-26 00:25:28,389 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:28,391 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:28,392 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:28,393 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:28,410 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:28,482 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 00:25:28,514 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:28,521 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:25:28,532 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-11-26 00:25:28,555 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:25:28,555 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-26 00:25:28,589 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 00:25:28,608 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:28,626 WARN L623 FunctionHandler]: Unknown extern function trace_hardirqs_off [2022-11-26 00:25:28,627 WARN L623 FunctionHandler]: Unknown extern function trace_hardirqs_off [2022-11-26 00:25:28,627 WARN L623 FunctionHandler]: Unknown extern function trace_hardirqs_on [2022-11-26 00:25:28,653 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:25:28,662 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:28,669 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-26 00:25:28,670 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:28,671 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:28,671 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-26 00:25:28,672 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-26 00:25:28,673 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:28,674 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:28,675 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:28,675 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:28,679 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-11-26 00:25:28,681 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:25:28,682 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:28,682 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:28,683 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:25:28,683 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-26 00:25:28,683 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-26 00:25:28,684 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:25:28,684 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 00:25:28,702 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:25:28,703 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:25:28,704 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:25:28,705 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:25:28,766 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-26 00:25:28,767 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-26 00:25:28,767 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:25:28,767 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 00:25:28,774 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:28,775 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:29,010 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-26 00:25:29,014 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 00:25:29,018 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:25:29,018 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:25:29,033 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-26 00:25:29,035 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-26 00:25:29,048 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-26 00:25:29,050 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-26 00:25:29,051 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-26 00:25:29,052 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:25:29,052 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-26 00:25:29,053 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:25:29,053 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-26 00:25:29,054 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-26 00:25:29,115 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 00:25:29,125 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,241 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,253 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,258 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,265 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,284 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,290 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,294 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,299 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,304 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,323 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,329 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,334 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,339 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,344 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,362 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,367 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,371 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,376 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,381 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,397 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,401 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,405 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,409 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,414 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,430 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,434 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,439 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,444 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,449 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,468 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,474 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,479 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,484 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,489 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,507 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,513 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,518 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,523 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,529 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,547 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,552 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,557 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,563 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,568 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,588 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,593 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,598 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,603 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,608 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,628 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,633 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,638 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,643 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,648 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,666 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,672 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,677 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,682 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,687 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,705 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,710 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,716 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,721 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,727 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,745 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,750 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,755 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,760 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,765 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,783 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,784 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,784 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,785 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,790 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,807 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,808 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,808 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,809 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,809 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,809 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,809 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,810 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,810 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,810 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,810 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,811 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,811 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,811 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,811 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,812 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:29,836 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_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i[376704,376717] [2022-11-26 00:25:29,840 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_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i[376849,376862] [2022-11-26 00:25:29,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:25:29,899 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:25:30,005 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-26 00:25:30,005 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_trylock [2022-11-26 00:25:30,005 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-26 00:25:30,006 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-26 00:25:30,006 WARN L623 FunctionHandler]: Unknown extern function ioremap_nocache [2022-11-26 00:25:30,008 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-26 00:25:30,008 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-26 00:25:30,008 WARN L623 FunctionHandler]: Unknown extern function _copy_from_user [2022-11-26 00:25:30,009 WARN L623 FunctionHandler]: Unknown extern function __copy_from_user_overflow [2022-11-26 00:25:30,009 WARN L623 FunctionHandler]: Unknown extern function might_fault [2022-11-26 00:25:30,009 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-26 00:25:30,010 WARN L623 FunctionHandler]: Unknown extern function _copy_to_user [2022-11-26 00:25:30,010 WARN L623 FunctionHandler]: Unknown extern function __copy_to_user_overflow [2022-11-26 00:25:30,013 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:25:30,014 WARN L623 FunctionHandler]: Unknown extern function __phys_addr [2022-11-26 00:25:30,014 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-26 00:25:30,016 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-26 00:25:30,017 WARN L623 FunctionHandler]: Unknown extern function debug_dma_map_page [2022-11-26 00:25:30,018 WARN L623 FunctionHandler]: Unknown extern function debug_dma_unmap_page [2022-11-26 00:25:30,019 WARN L623 FunctionHandler]: Unknown extern function debug_dma_sync_single_for_cpu [2022-11-26 00:25:30,021 WARN L623 FunctionHandler]: Unknown extern function debug_dma_alloc_coherent [2022-11-26 00:25:30,022 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:25:30,022 WARN L623 FunctionHandler]: Unknown extern function debug_dma_free_coherent [2022-11-26 00:25:30,023 WARN L623 FunctionHandler]: Unknown extern function dma_supported [2022-11-26 00:25:30,027 WARN L623 FunctionHandler]: Unknown extern function __might_sleep [2022-11-26 00:25:30,027 WARN L623 FunctionHandler]: Unknown extern function msleep [2022-11-26 00:25:30,029 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-26 00:25:30,029 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-26 00:25:30,030 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-26 00:25:30,030 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,031 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-26 00:25:30,032 WARN L623 FunctionHandler]: Unknown extern function pci_bus_read_config_word [2022-11-26 00:25:30,036 WARN L623 FunctionHandler]: Unknown extern function dma_set_mask [2022-11-26 00:25:30,037 WARN L623 FunctionHandler]: Unknown extern function request_threaded_irq [2022-11-26 00:25:30,039 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,040 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,042 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,042 WARN L623 FunctionHandler]: Unknown extern function netdev_info [2022-11-26 00:25:30,043 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,045 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:25:30,045 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:30,046 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-26 00:25:30,046 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:30,047 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:30,047 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:30,048 WARN L623 FunctionHandler]: Unknown extern function __napi_schedule [2022-11-26 00:25:30,049 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-11-26 00:25:30,050 WARN L623 FunctionHandler]: Unknown extern function napi_complete [2022-11-26 00:25:30,051 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-11-26 00:25:30,052 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:30,053 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:30,053 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:30,053 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-11-26 00:25:30,054 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:30,058 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:25:30,058 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:30,059 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:30,060 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,060 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:30,061 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:30,062 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,062 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:30,063 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:30,063 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:30,068 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,115 WARN L623 FunctionHandler]: Unknown extern function capable [2022-11-26 00:25:30,117 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,117 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,118 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,119 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,119 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:30,128 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 00:25:30,132 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:30,133 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:25:30,137 WARN L623 FunctionHandler]: Unknown extern function netif_receive_skb [2022-11-26 00:25:30,143 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-26 00:25:30,143 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-26 00:25:30,148 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 00:25:30,153 WARN L623 FunctionHandler]: Unknown extern function netdev_err [2022-11-26 00:25:30,154 WARN L623 FunctionHandler]: Unknown extern function trace_hardirqs_off [2022-11-26 00:25:30,155 WARN L623 FunctionHandler]: Unknown extern function trace_hardirqs_off [2022-11-26 00:25:30,155 WARN L623 FunctionHandler]: Unknown extern function trace_hardirqs_on [2022-11-26 00:25:30,172 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-11-26 00:25:30,175 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-26 00:25:30,177 WARN L623 FunctionHandler]: Unknown extern function pci_enable_device [2022-11-26 00:25:30,177 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,178 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,178 WARN L623 FunctionHandler]: Unknown extern function pci_request_regions [2022-11-26 00:25:30,180 WARN L623 FunctionHandler]: Unknown extern function pci_set_master [2022-11-26 00:25:30,181 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,181 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,182 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,183 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,194 WARN L623 FunctionHandler]: Unknown extern function netif_napi_add [2022-11-26 00:25:30,195 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-26 00:25:30,196 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,197 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,197 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-26 00:25:30,198 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-26 00:25:30,198 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-26 00:25:30,198 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:25:30,199 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 00:25:30,203 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:25:30,205 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:25:30,206 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:25:30,206 WARN L623 FunctionHandler]: Unknown extern function strlcpy [2022-11-26 00:25:30,258 WARN L623 FunctionHandler]: Unknown extern function iounmap [2022-11-26 00:25:30,259 WARN L623 FunctionHandler]: Unknown extern function pci_release_regions [2022-11-26 00:25:30,259 WARN L623 FunctionHandler]: Unknown extern function pci_disable_device [2022-11-26 00:25:30,259 WARN L623 FunctionHandler]: Unknown extern function vfree [2022-11-26 00:25:30,261 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,262 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-26 00:25:30,271 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-26 00:25:30,272 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-26 00:25:30,274 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-26 00:25:30,275 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-26 00:25:30,286 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-26 00:25:30,287 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-26 00:25:30,297 WARN L623 FunctionHandler]: Unknown extern function free_irq [2022-11-26 00:25:30,299 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-26 00:25:30,299 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-26 00:25:30,299 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:25:30,300 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-26 00:25:30,300 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-26 00:25:30,300 WARN L623 FunctionHandler]: Unknown extern function __pci_register_driver [2022-11-26 00:25:30,304 WARN L623 FunctionHandler]: Unknown extern function pci_unregister_driver [2022-11-26 00:25:30,307 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-26 00:25:30,307 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,312 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,312 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,313 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,313 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,314 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,314 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,315 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,315 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,315 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,316 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,317 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,317 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,323 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,323 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,324 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,325 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,325 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,325 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,326 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,327 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,327 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,327 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,329 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,329 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,330 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,330 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,331 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,331 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,332 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,332 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,333 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,333 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,334 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,334 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,335 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,335 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,336 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,336 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,337 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,338 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,338 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,339 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,339 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,339 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,340 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,341 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,341 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,341 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,342 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,343 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,343 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,343 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,345 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,346 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,347 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,347 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,352 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,352 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,353 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,353 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,354 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,355 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,357 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,357 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,360 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,360 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,361 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,361 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,362 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,362 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,363 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,363 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,364 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,364 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,365 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,365 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,366 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,366 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,366 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,366 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,367 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,367 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,367 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,367 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,368 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,368 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,368 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,369 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,369 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,369 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-26 00:25:30,371 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_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i[376704,376717] [2022-11-26 00:25:30,372 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_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i[376849,376862] [2022-11-26 00:25:30,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:25:30,667 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:25:30,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:30 WrapperNode [2022-11-26 00:25:30,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:25:30,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:25:30,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:25:30,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:25:30,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:30" (1/1) ... [2022-11-26 00:25:30,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:30" (1/1) ... [2022-11-26 00:25:31,007 INFO L138 Inliner]: procedures = 490, calls = 2384, calls flagged for inlining = 232, calls inlined = 186, statements flattened = 4666 [2022-11-26 00:25:31,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:25:31,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:25:31,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:25:31,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:25:31,024 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:30" (1/1) ... [2022-11-26 00:25:31,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:30" (1/1) ... [2022-11-26 00:25:31,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:30" (1/1) ... [2022-11-26 00:25:31,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:30" (1/1) ... [2022-11-26 00:25:31,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:30" (1/1) ... [2022-11-26 00:25:31,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:30" (1/1) ... [2022-11-26 00:25:31,282 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:30" (1/1) ... [2022-11-26 00:25:31,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:30" (1/1) ... [2022-11-26 00:25:31,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:25:31,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:25:31,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:25:31,346 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:25:31,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:30" (1/1) ... [2022-11-26 00:25:31,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:25:31,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:25:31,384 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:25:31,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:25:31,423 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-26 00:25:31,423 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-26 00:25:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-26 00:25:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-26 00:25:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-26 00:25:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-26 00:25:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-26 00:25:31,424 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-26 00:25:31,424 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_open [2022-11-26 00:25:31,425 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_open [2022-11-26 00:25:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-26 00:25:31,425 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-26 00:25:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-26 00:25:31,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-26 00:25:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-26 00:25:31,425 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-26 00:25:31,425 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-26 00:25:31,426 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-26 00:25:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-26 00:25:31,426 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-26 00:25:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-26 00:25:31,426 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-26 00:25:31,426 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-26 00:25:31,426 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-26 00:25:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_tx_db_inc_wptr [2022-11-26 00:25:31,427 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_tx_db_inc_wptr [2022-11-26 00:25:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-26 00:25:31,427 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-26 00:25:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-26 00:25:31,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-26 00:25:31,427 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-26 00:25:31,428 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-26 00:25:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-26 00:25:31,428 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-26 00:25:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-26 00:25:31,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-26 00:25:31,428 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-26 00:25:31,428 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-26 00:25:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-26 00:25:31,429 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-26 00:25:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:25:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-26 00:25:31,429 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-26 00:25:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-26 00:25:31,429 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-26 00:25:31,429 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_consistent_dma_mask [2022-11-26 00:25:31,430 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_consistent_dma_mask [2022-11-26 00:25:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-26 00:25:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-26 00:25:31,430 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-26 00:25:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-26 00:25:31,430 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-26 00:25:31,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 00:25:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-26 00:25:31,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-26 00:25:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure __bdx_tx_db_ptr_next [2022-11-26 00:25:31,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __bdx_tx_db_ptr_next [2022-11-26 00:25:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:25:31,431 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-26 00:25:31,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-26 00:25:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-26 00:25:31,432 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-26 00:25:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-26 00:25:31,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-26 00:25:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_close [2022-11-26 00:25:31,432 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_close [2022-11-26 00:25:31,432 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-26 00:25:31,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-26 00:25:31,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-26 00:25:31,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-26 00:25:31,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_bdx_priv [2022-11-26 00:25:31,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_bdx_priv [2022-11-26 00:25:31,433 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-11-26 00:25:31,433 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-11-26 00:25:31,433 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-26 00:25:31,434 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-26 00:25:31,434 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-26 00:25:31,434 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-26 00:25:31,434 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:25:31,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-26 00:25:31,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-26 00:25:31,434 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_restore_mac [2022-11-26 00:25:31,435 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_restore_mac [2022-11-26 00:25:31,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:25:31,435 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_rx_alloc_skbs [2022-11-26 00:25:31,435 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_rx_alloc_skbs [2022-11-26 00:25:31,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-26 00:25:31,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-26 00:25:31,435 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-26 00:25:31,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-26 00:25:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:25:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-26 00:25:31,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-26 00:25:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-11-26 00:25:31,436 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-11-26 00:25:31,436 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-26 00:25:31,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-26 00:25:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-26 00:25:31,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-26 00:25:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-26 00:25:31,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-26 00:25:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-26 00:25:31,437 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-26 00:25:31,437 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-26 00:25:31,437 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-26 00:25:31,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-26 00:25:31,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-26 00:25:31,438 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_rxdb_available [2022-11-26 00:25:31,438 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_rxdb_available [2022-11-26 00:25:31,438 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-26 00:25:31,438 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-26 00:25:31,438 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-26 00:25:31,439 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-26 00:25:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-26 00:25:31,439 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-26 00:25:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_rxdb_addr_elem [2022-11-26 00:25:31,439 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_rxdb_addr_elem [2022-11-26 00:25:31,439 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-11-26 00:25:31,439 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-11-26 00:25:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:25:31,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:25:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-26 00:25:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-26 00:25:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-26 00:25:31,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-26 00:25:31,440 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_tx_db_inc_rptr [2022-11-26 00:25:31,440 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_tx_db_inc_rptr [2022-11-26 00:25:31,441 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 00:25:31,441 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 00:25:31,441 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-26 00:25:31,441 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-26 00:25:31,441 INFO L130 BoogieDeclarations]: Found specification of procedure __bdx_vlan_rx_vid [2022-11-26 00:25:31,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __bdx_vlan_rx_vid [2022-11-26 00:25:31,441 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-26 00:25:31,442 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-26 00:25:31,442 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_fifo_free [2022-11-26 00:25:31,442 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_fifo_free [2022-11-26 00:25:31,442 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_remove [2022-11-26 00:25:31,442 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_remove [2022-11-26 00:25:31,442 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-26 00:25:31,442 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-26 00:25:31,442 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-26 00:25:31,443 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-26 00:25:31,443 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-26 00:25:31,443 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-26 00:25:31,443 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-26 00:25:31,443 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-26 00:25:31,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:25:31,443 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-26 00:25:31,444 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-26 00:25:31,444 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-26 00:25:31,444 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-26 00:25:31,444 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:25:31,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-26 00:25:31,444 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-26 00:25:31,444 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-26 00:25:31,444 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-26 00:25:31,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-26 00:25:31,445 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_reset [2022-11-26 00:25:31,445 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_reset [2022-11-26 00:25:31,445 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-26 00:25:31,445 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-26 00:25:31,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-26 00:25:31,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-26 00:25:31,445 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_rxdb_alloc_elem [2022-11-26 00:25:31,446 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_rxdb_alloc_elem [2022-11-26 00:25:31,446 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_range_check [2022-11-26 00:25:31,446 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_range_check [2022-11-26 00:25:31,446 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-26 00:25:31,446 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-26 00:25:31,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-11-26 00:25:31,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-11-26 00:25:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-26 00:25:31,447 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-26 00:25:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_fifo_init [2022-11-26 00:25:31,447 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_fifo_init [2022-11-26 00:25:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-26 00:25:31,447 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-26 00:25:31,447 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_link_changed [2022-11-26 00:25:31,448 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_link_changed [2022-11-26 00:25:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:25:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-26 00:25:31,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-26 00:25:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-26 00:25:31,448 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-26 00:25:31,448 INFO L130 BoogieDeclarations]: Found specification of procedure bdx_setmulti [2022-11-26 00:25:31,448 INFO L138 BoogieDeclarations]: Found implementation of procedure bdx_setmulti [2022-11-26 00:25:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure print_rxfd [2022-11-26 00:25:31,449 INFO L138 BoogieDeclarations]: Found implementation of procedure print_rxfd [2022-11-26 00:25:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-26 00:25:31,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-26 00:25:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-26 00:25:31,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-26 00:25:31,449 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-26 00:25:31,449 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-26 00:25:31,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:25:31,450 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-26 00:25:31,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-26 00:25:32,331 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:25:32,335 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:25:32,608 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-26 00:28:17,454 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-26 00:28:17,568 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:28:20,573 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:28:20,573 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 00:28:20,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:28:20 BoogieIcfgContainer [2022-11-26 00:28:20,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:28:20,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:28:20,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:28:20,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:28:20,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:25:26" (1/3) ... [2022-11-26 00:28:20,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2414321c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:28:20, skipping insertion in model container [2022-11-26 00:28:20,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:25:30" (2/3) ... [2022-11-26 00:28:20,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2414321c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:28:20, skipping insertion in model container [2022-11-26 00:28:20,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:28:20" (3/3) ... [2022-11-26 00:28:20,591 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-tehuti-tehuti.cil.i [2022-11-26 00:28:20,611 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:28:20,611 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:28:20,710 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:28:20,718 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;@6f161661, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:28:20,718 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:28:20,729 INFO L276 IsEmpty]: Start isEmpty. Operand has 1231 states, 720 states have (on average 1.275) internal successors, (918), 743 states have internal predecessors, (918), 420 states have call successors, (420), 91 states have call predecessors, (420), 90 states have return successors, (415), 412 states have call predecessors, (415), 415 states have call successors, (415) [2022-11-26 00:28:20,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-26 00:28:20,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:20,765 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:28:20,765 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:28:20,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:20,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1365540724, now seen corresponding path program 1 times [2022-11-26 00:28:20,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:20,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372348581] [2022-11-26 00:28:20,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:20,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:22,863 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-26 00:28:22,864 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:22,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372348581] [2022-11-26 00:28:22,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372348581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:22,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:22,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:28:22,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486752894] [2022-11-26 00:28:22,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:22,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:28:22,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:22,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:28:22,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:22,923 INFO L87 Difference]: Start difference. First operand has 1231 states, 720 states have (on average 1.275) internal successors, (918), 743 states have internal predecessors, (918), 420 states have call successors, (420), 91 states have call predecessors, (420), 90 states have return successors, (415), 412 states have call predecessors, (415), 415 states have call successors, (415) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-26 00:28:25,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:28:30,342 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 00:28:31,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:31,168 INFO L93 Difference]: Finished difference Result 3387 states and 4870 transitions. [2022-11-26 00:28:31,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:28:31,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 86 [2022-11-26 00:28:31,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:31,205 INFO L225 Difference]: With dead ends: 3387 [2022-11-26 00:28:31,206 INFO L226 Difference]: Without dead ends: 2110 [2022-11-26 00:28:31,218 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 00:28:31,222 INFO L413 NwaCegarLoop]: 1968 mSDtfsCounter, 1308 mSDsluCounter, 1455 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 17 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 3423 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:31,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1308 Valid, 3423 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 556 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2022-11-26 00:28:31,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2110 states. [2022-11-26 00:28:31,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2110 to 2105. [2022-11-26 00:28:31,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2105 states, 1262 states have (on average 1.2567353407290016) internal successors, (1586), 1298 states have internal predecessors, (1586), 682 states have call successors, (682), 159 states have call predecessors, (682), 159 states have return successors, (682), 677 states have call predecessors, (682), 682 states have call successors, (682) [2022-11-26 00:28:31,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2105 states to 2105 states and 2950 transitions. [2022-11-26 00:28:31,444 INFO L78 Accepts]: Start accepts. Automaton has 2105 states and 2950 transitions. Word has length 86 [2022-11-26 00:28:31,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:31,445 INFO L495 AbstractCegarLoop]: Abstraction has 2105 states and 2950 transitions. [2022-11-26 00:28:31,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-26 00:28:31,446 INFO L276 IsEmpty]: Start isEmpty. Operand 2105 states and 2950 transitions. [2022-11-26 00:28:31,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-26 00:28:31,451 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:31,451 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:28:31,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:28:31,452 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:28:31,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:31,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1731225222, now seen corresponding path program 1 times [2022-11-26 00:28:31,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:31,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150559672] [2022-11-26 00:28:31,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:31,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:32,628 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-11-26 00:28:32,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:32,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150559672] [2022-11-26 00:28:32,630 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150559672] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:32,630 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:32,630 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:28:32,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067496599] [2022-11-26 00:28:32,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:32,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:28:32,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:32,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:28:32,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:32,634 INFO L87 Difference]: Start difference. First operand 2105 states and 2950 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-26 00:28:34,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:28:38,372 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 00:28:40,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:40,497 INFO L93 Difference]: Finished difference Result 5836 states and 8157 transitions. [2022-11-26 00:28:40,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:28:40,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 93 [2022-11-26 00:28:40,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:40,524 INFO L225 Difference]: With dead ends: 5836 [2022-11-26 00:28:40,524 INFO L226 Difference]: Without dead ends: 3742 [2022-11-26 00:28:40,534 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 00:28:40,535 INFO L413 NwaCegarLoop]: 1778 mSDtfsCounter, 1560 mSDsluCounter, 1295 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1560 SdHoareTripleChecker+Valid, 3073 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:40,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1560 Valid, 3073 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 480 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-11-26 00:28:40,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2022-11-26 00:28:40,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3735. [2022-11-26 00:28:40,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3735 states, 2246 states have (on average 1.257346393588602) internal successors, (2824), 2311 states have internal predecessors, (2824), 1188 states have call successors, (1188), 300 states have call predecessors, (1188), 299 states have return successors, (1200), 1173 states have call predecessors, (1200), 1188 states have call successors, (1200) [2022-11-26 00:28:40,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3735 states to 3735 states and 5212 transitions. [2022-11-26 00:28:40,803 INFO L78 Accepts]: Start accepts. Automaton has 3735 states and 5212 transitions. Word has length 93 [2022-11-26 00:28:40,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:40,806 INFO L495 AbstractCegarLoop]: Abstraction has 3735 states and 5212 transitions. [2022-11-26 00:28:40,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-26 00:28:40,807 INFO L276 IsEmpty]: Start isEmpty. Operand 3735 states and 5212 transitions. [2022-11-26 00:28:40,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-26 00:28:40,812 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:40,813 INFO L195 NwaCegarLoop]: trace histogram [9, 5, 5, 5, 5, 5, 5, 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] [2022-11-26 00:28:40,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:28:40,813 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:28:40,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:40,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1996231866, now seen corresponding path program 1 times [2022-11-26 00:28:40,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:40,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376048528] [2022-11-26 00:28:40,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:40,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:41,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:42,172 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-11-26 00:28:42,173 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:42,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376048528] [2022-11-26 00:28:42,173 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376048528] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:42,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:42,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:28:42,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098280441] [2022-11-26 00:28:42,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:42,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:28:42,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:42,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:28:42,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:42,181 INFO L87 Difference]: Start difference. First operand 3735 states and 5212 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-26 00:28:44,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:28:50,250 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 00:28:51,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:28:51,143 INFO L93 Difference]: Finished difference Result 9019 states and 12577 transitions. [2022-11-26 00:28:51,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:28:51,144 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 130 [2022-11-26 00:28:51,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:28:51,181 INFO L225 Difference]: With dead ends: 9019 [2022-11-26 00:28:51,181 INFO L226 Difference]: Without dead ends: 5295 [2022-11-26 00:28:51,199 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 00:28:51,200 INFO L413 NwaCegarLoop]: 2512 mSDtfsCounter, 1263 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 713 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 3906 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 713 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:28:51,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1263 Valid, 3906 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 713 Invalid, 2 Unknown, 0 Unchecked, 8.5s Time] [2022-11-26 00:28:51,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5295 states. [2022-11-26 00:28:51,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5295 to 5289. [2022-11-26 00:28:51,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5289 states, 3187 states have (on average 1.2532161907750234) internal successors, (3994), 3278 states have internal predecessors, (3994), 1670 states have call successors, (1670), 431 states have call predecessors, (1670), 430 states have return successors, (1683), 1649 states have call predecessors, (1683), 1670 states have call successors, (1683) [2022-11-26 00:28:51,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5289 states to 5289 states and 7347 transitions. [2022-11-26 00:28:51,557 INFO L78 Accepts]: Start accepts. Automaton has 5289 states and 7347 transitions. Word has length 130 [2022-11-26 00:28:51,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:28:51,560 INFO L495 AbstractCegarLoop]: Abstraction has 5289 states and 7347 transitions. [2022-11-26 00:28:51,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-26 00:28:51,560 INFO L276 IsEmpty]: Start isEmpty. Operand 5289 states and 7347 transitions. [2022-11-26 00:28:51,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-11-26 00:28:51,572 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:51,573 INFO L195 NwaCegarLoop]: trace histogram [11, 9, 9, 5, 5, 5, 5, 5, 5, 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] [2022-11-26 00:28:51,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:28:51,573 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:28:51,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:51,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1906453458, now seen corresponding path program 1 times [2022-11-26 00:28:51,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:51,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532659975] [2022-11-26 00:28:51,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:51,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:28:53,136 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2022-11-26 00:28:53,136 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:28:53,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532659975] [2022-11-26 00:28:53,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532659975] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:28:53,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:28:53,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:28:53,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3921453] [2022-11-26 00:28:53,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:28:53,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:28:53,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:28:53,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:28:53,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:28:53,139 INFO L87 Difference]: Start difference. First operand 5289 states and 7347 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-26 00:28:55,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:29:00,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:29:00,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:29:00,987 INFO L93 Difference]: Finished difference Result 10573 states and 14690 transitions. [2022-11-26 00:29:00,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:29:00,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 192 [2022-11-26 00:29:00,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:29:01,021 INFO L225 Difference]: With dead ends: 10573 [2022-11-26 00:29:01,022 INFO L226 Difference]: Without dead ends: 5295 [2022-11-26 00:29:01,042 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 00:29:01,043 INFO L413 NwaCegarLoop]: 1435 mSDtfsCounter, 0 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2869 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:29:01,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2869 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 486 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-11-26 00:29:01,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5295 states. [2022-11-26 00:29:01,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5295 to 5295. [2022-11-26 00:29:01,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5295 states, 3193 states have (on average 1.252740369558409) internal successors, (4000), 3284 states have internal predecessors, (4000), 1670 states have call successors, (1670), 431 states have call predecessors, (1670), 430 states have return successors, (1683), 1649 states have call predecessors, (1683), 1670 states have call successors, (1683) [2022-11-26 00:29:01,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5295 states to 5295 states and 7353 transitions. [2022-11-26 00:29:01,341 INFO L78 Accepts]: Start accepts. Automaton has 5295 states and 7353 transitions. Word has length 192 [2022-11-26 00:29:01,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:29:01,341 INFO L495 AbstractCegarLoop]: Abstraction has 5295 states and 7353 transitions. [2022-11-26 00:29:01,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-11-26 00:29:01,358 INFO L276 IsEmpty]: Start isEmpty. Operand 5295 states and 7353 transitions. [2022-11-26 00:29:01,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-11-26 00:29:01,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:29:01,366 INFO L195 NwaCegarLoop]: trace histogram [11, 9, 9, 5, 5, 5, 5, 5, 5, 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] [2022-11-26 00:29:01,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:29:01,367 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:29:01,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:29:01,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1282730355, now seen corresponding path program 1 times [2022-11-26 00:29:01,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:29:01,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772441156] [2022-11-26 00:29:01,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:29:01,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:29:01,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:29:03,143 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2022-11-26 00:29:03,143 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:29:03,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772441156] [2022-11-26 00:29:03,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772441156] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:29:03,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142858354] [2022-11-26 00:29:03,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:29:03,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:29:03,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:29:03,151 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:29:03,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:29:05,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:29:05,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 4812 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-26 00:29:05,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:29:40,923 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2022-11-26 00:29:40,924 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:29:40,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142858354] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:29:40,924 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:29:40,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2022-11-26 00:29:40,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146570205] [2022-11-26 00:29:40,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:29:40,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:29:40,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:29:40,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:29:40,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:29:40,928 INFO L87 Difference]: Start difference. First operand 5295 states and 7353 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-26 00:29:43,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:29:55,593 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 00:29:58,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:29:58,751 INFO L93 Difference]: Finished difference Result 9903 states and 13711 transitions. [2022-11-26 00:29:58,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:29:58,752 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 193 [2022-11-26 00:29:58,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:29:58,810 INFO L225 Difference]: With dead ends: 9903 [2022-11-26 00:29:58,811 INFO L226 Difference]: Without dead ends: 9901 [2022-11-26 00:29:58,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:29:58,818 INFO L413 NwaCegarLoop]: 1791 mSDtfsCounter, 1365 mSDsluCounter, 6122 mSDsCounter, 0 mSdLazyCounter, 1941 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 7913 SdHoareTripleChecker+Invalid, 1943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1941 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:29:58,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 7913 Invalid, 1943 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1941 Invalid, 2 Unknown, 0 Unchecked, 16.7s Time] [2022-11-26 00:29:58,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9901 states. [2022-11-26 00:29:59,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9901 to 9893. [2022-11-26 00:29:59,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9893 states, 5998 states have (on average 1.2577525841947317) internal successors, (7544), 6171 states have internal predecessors, (7544), 3065 states have call successors, (3065), 830 states have call predecessors, (3065), 828 states have return successors, (3090), 3023 states have call predecessors, (3090), 3065 states have call successors, (3090) [2022-11-26 00:29:59,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9893 states to 9893 states and 13699 transitions. [2022-11-26 00:29:59,770 INFO L78 Accepts]: Start accepts. Automaton has 9893 states and 13699 transitions. Word has length 193 [2022-11-26 00:29:59,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:29:59,772 INFO L495 AbstractCegarLoop]: Abstraction has 9893 states and 13699 transitions. [2022-11-26 00:29:59,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 1 states have call successors, (23), 1 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-26 00:29:59,772 INFO L276 IsEmpty]: Start isEmpty. Operand 9893 states and 13699 transitions. [2022-11-26 00:29:59,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-11-26 00:29:59,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:29:59,792 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 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] [2022-11-26 00:29:59,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:30:00,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:30:00,020 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:30:00,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:30:00,021 INFO L85 PathProgramCache]: Analyzing trace with hash -964882263, now seen corresponding path program 1 times [2022-11-26 00:30:00,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:30:00,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819245622] [2022-11-26 00:30:00,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:30:00,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:30:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:30:01,209 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-11-26 00:30:01,209 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:30:01,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819245622] [2022-11-26 00:30:01,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819245622] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:30:01,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:30:01,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:30:01,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753306879] [2022-11-26 00:30:01,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:30:01,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:30:01,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:30:01,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:30:01,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:30:01,212 INFO L87 Difference]: Start difference. First operand 9893 states and 13699 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-26 00:30:03,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:30:06,613 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 00:30:09,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:30:09,090 INFO L93 Difference]: Finished difference Result 19848 states and 27331 transitions. [2022-11-26 00:30:09,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:30:09,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 267 [2022-11-26 00:30:09,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:30:09,141 INFO L225 Difference]: With dead ends: 19848 [2022-11-26 00:30:09,141 INFO L226 Difference]: Without dead ends: 9966 [2022-11-26 00:30:09,178 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 00:30:09,179 INFO L413 NwaCegarLoop]: 1734 mSDtfsCounter, 1249 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 3144 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:30:09,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1249 Valid, 3144 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 511 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-11-26 00:30:09,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9966 states. [2022-11-26 00:30:09,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9966 to 9961. [2022-11-26 00:30:09,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9961 states, 6055 states have (on average 1.2398018166804294) internal successors, (7507), 6235 states have internal predecessors, (7507), 3022 states have call successors, (3022), 885 states have call predecessors, (3022), 882 states have return successors, (3056), 2978 states have call predecessors, (3056), 3022 states have call successors, (3056) [2022-11-26 00:30:09,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9961 states to 9961 states and 13585 transitions. [2022-11-26 00:30:09,988 INFO L78 Accepts]: Start accepts. Automaton has 9961 states and 13585 transitions. Word has length 267 [2022-11-26 00:30:09,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:30:09,988 INFO L495 AbstractCegarLoop]: Abstraction has 9961 states and 13585 transitions. [2022-11-26 00:30:09,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-26 00:30:09,989 INFO L276 IsEmpty]: Start isEmpty. Operand 9961 states and 13585 transitions. [2022-11-26 00:30:09,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-11-26 00:30:09,996 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:30:09,996 INFO L195 NwaCegarLoop]: trace histogram [11, 8, 8, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:30:09,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:30:09,997 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:30:09,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:30:09,997 INFO L85 PathProgramCache]: Analyzing trace with hash 960188389, now seen corresponding path program 1 times [2022-11-26 00:30:09,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:30:09,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049678547] [2022-11-26 00:30:09,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:30:09,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:30:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:30:11,410 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2022-11-26 00:30:11,410 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:30:11,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049678547] [2022-11-26 00:30:11,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049678547] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:30:11,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:30:11,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:30:11,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420201430] [2022-11-26 00:30:11,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:30:11,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:30:11,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:30:11,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:30:11,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:30:11,413 INFO L87 Difference]: Start difference. First operand 9961 states and 13585 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-26 00:30:13,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:30:17,992 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 00:30:20,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:30:20,324 INFO L93 Difference]: Finished difference Result 19932 states and 27239 transitions. [2022-11-26 00:30:20,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:30:20,325 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 271 [2022-11-26 00:30:20,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:30:20,369 INFO L225 Difference]: With dead ends: 19932 [2022-11-26 00:30:20,369 INFO L226 Difference]: Without dead ends: 10000 [2022-11-26 00:30:20,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:30:20,407 INFO L413 NwaCegarLoop]: 1433 mSDtfsCounter, 7 mSDsluCounter, 2853 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4286 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:30:20,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4286 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 748 Invalid, 2 Unknown, 0 Unchecked, 8.5s Time] [2022-11-26 00:30:20,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10000 states. [2022-11-26 00:30:21,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10000 to 9977. [2022-11-26 00:30:21,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9977 states, 6071 states have (on average 1.2391698237522648) internal successors, (7523), 6251 states have internal predecessors, (7523), 3022 states have call successors, (3022), 885 states have call predecessors, (3022), 882 states have return successors, (3056), 2978 states have call predecessors, (3056), 3022 states have call successors, (3056) [2022-11-26 00:30:21,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9977 states to 9977 states and 13601 transitions. [2022-11-26 00:30:21,196 INFO L78 Accepts]: Start accepts. Automaton has 9977 states and 13601 transitions. Word has length 271 [2022-11-26 00:30:21,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:30:21,197 INFO L495 AbstractCegarLoop]: Abstraction has 9977 states and 13601 transitions. [2022-11-26 00:30:21,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-11-26 00:30:21,198 INFO L276 IsEmpty]: Start isEmpty. Operand 9977 states and 13601 transitions. [2022-11-26 00:30:21,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-11-26 00:30:21,205 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:30:21,206 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:30:21,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:30:21,206 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:30:21,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:30:21,207 INFO L85 PathProgramCache]: Analyzing trace with hash 255745468, now seen corresponding path program 1 times [2022-11-26 00:30:21,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:30:21,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782688009] [2022-11-26 00:30:21,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:30:21,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:30:21,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:30:22,813 INFO L134 CoverageAnalysis]: Checked inductivity of 376 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2022-11-26 00:30:22,814 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:30:22,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782688009] [2022-11-26 00:30:22,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782688009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:30:22,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:30:22,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:30:22,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104602097] [2022-11-26 00:30:22,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:30:22,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:30:22,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:30:22,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:30:22,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:30:22,816 INFO L87 Difference]: Start difference. First operand 9977 states and 13601 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-26 00:30:24,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:30:29,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:30:31,477 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:30:33,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:30:33,473 INFO L93 Difference]: Finished difference Result 19964 states and 27271 transitions. [2022-11-26 00:30:33,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:30:33,474 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 306 [2022-11-26 00:30:33,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:30:33,526 INFO L225 Difference]: With dead ends: 19964 [2022-11-26 00:30:33,526 INFO L226 Difference]: Without dead ends: 10016 [2022-11-26 00:30:33,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:30:33,552 INFO L413 NwaCegarLoop]: 1439 mSDtfsCounter, 7 mSDsluCounter, 2861 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4300 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:30:33,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4300 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 748 Invalid, 2 Unknown, 0 Unchecked, 10.1s Time] [2022-11-26 00:30:33,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10016 states. [2022-11-26 00:30:34,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10016 to 9993. [2022-11-26 00:30:34,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9993 states, 6087 states have (on average 1.2385411532774766) internal successors, (7539), 6267 states have internal predecessors, (7539), 3022 states have call successors, (3022), 885 states have call predecessors, (3022), 882 states have return successors, (3056), 2978 states have call predecessors, (3056), 3022 states have call successors, (3056) [2022-11-26 00:30:34,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9993 states to 9993 states and 13617 transitions. [2022-11-26 00:30:34,177 INFO L78 Accepts]: Start accepts. Automaton has 9993 states and 13617 transitions. Word has length 306 [2022-11-26 00:30:34,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:30:34,178 INFO L495 AbstractCegarLoop]: Abstraction has 9993 states and 13617 transitions. [2022-11-26 00:30:34,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-26 00:30:34,178 INFO L276 IsEmpty]: Start isEmpty. Operand 9993 states and 13617 transitions. [2022-11-26 00:30:34,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-11-26 00:30:34,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:30:34,187 INFO L195 NwaCegarLoop]: trace histogram [13, 8, 8, 7, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:30:34,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 00:30:34,188 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:30:34,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:30:34,189 INFO L85 PathProgramCache]: Analyzing trace with hash -698877177, now seen corresponding path program 1 times [2022-11-26 00:30:34,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:30:34,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733654803] [2022-11-26 00:30:34,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:30:34,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:30:34,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:30:35,393 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2022-11-26 00:30:35,394 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:30:35,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733654803] [2022-11-26 00:30:35,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733654803] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:30:35,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:30:35,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:30:35,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902125662] [2022-11-26 00:30:35,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:30:35,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:30:35,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:30:35,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:30:35,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:30:35,396 INFO L87 Difference]: Start difference. First operand 9993 states and 13617 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-26 00:30:37,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:30:41,089 WARN L539 Checker$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 00:30:42,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:30:42,963 INFO L93 Difference]: Finished difference Result 20537 states and 28129 transitions. [2022-11-26 00:30:42,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:30:42,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 347 [2022-11-26 00:30:42,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:30:43,002 INFO L225 Difference]: With dead ends: 20537 [2022-11-26 00:30:43,002 INFO L226 Difference]: Without dead ends: 10573 [2022-11-26 00:30:43,030 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 00:30:43,030 INFO L413 NwaCegarLoop]: 1525 mSDtfsCounter, 69 mSDsluCounter, 1430 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 2955 SdHoareTripleChecker+Invalid, 499 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:30:43,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 2955 Invalid, 499 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 496 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2022-11-26 00:30:43,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10573 states. [2022-11-26 00:30:43,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10573 to 10057. [2022-11-26 00:30:43,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10057 states, 6135 states have (on average 1.239282803585982) internal successors, (7603), 6315 states have internal predecessors, (7603), 3038 states have call successors, (3038), 885 states have call predecessors, (3038), 882 states have return successors, (3072), 2994 states have call predecessors, (3072), 3038 states have call successors, (3072) [2022-11-26 00:30:43,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10057 states to 10057 states and 13713 transitions. [2022-11-26 00:30:43,646 INFO L78 Accepts]: Start accepts. Automaton has 10057 states and 13713 transitions. Word has length 347 [2022-11-26 00:30:43,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:30:43,647 INFO L495 AbstractCegarLoop]: Abstraction has 10057 states and 13713 transitions. [2022-11-26 00:30:43,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-26 00:30:43,648 INFO L276 IsEmpty]: Start isEmpty. Operand 10057 states and 13713 transitions. [2022-11-26 00:30:43,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-11-26 00:30:43,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:30:43,657 INFO L195 NwaCegarLoop]: trace histogram [13, 8, 8, 7, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:30:43,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:30:43,658 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:30:43,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:30:43,658 INFO L85 PathProgramCache]: Analyzing trace with hash 2123522283, now seen corresponding path program 1 times [2022-11-26 00:30:43,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:30:43,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581348579] [2022-11-26 00:30:43,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:30:43,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:30:44,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:30:45,181 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2022-11-26 00:30:45,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:30:45,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581348579] [2022-11-26 00:30:45,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581348579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:30:45,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:30:45,182 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:30:45,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154591270] [2022-11-26 00:30:45,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:30:45,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:30:45,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:30:45,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:30:45,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:30:45,184 INFO L87 Difference]: Start difference. First operand 10057 states and 13713 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-26 00:30:47,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:30:51,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:30:53,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:30:53,062 INFO L93 Difference]: Finished difference Result 20729 states and 28425 transitions. [2022-11-26 00:30:53,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:30:53,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 348 [2022-11-26 00:30:53,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:30:53,104 INFO L225 Difference]: With dead ends: 20729 [2022-11-26 00:30:53,105 INFO L226 Difference]: Without dead ends: 10701 [2022-11-26 00:30:53,135 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 00:30:53,136 INFO L413 NwaCegarLoop]: 1492 mSDtfsCounter, 45 mSDsluCounter, 1446 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 2938 SdHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:30:53,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 2938 Invalid, 495 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 493 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-11-26 00:30:53,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10701 states. [2022-11-26 00:30:53,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10701 to 10073. [2022-11-26 00:30:53,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10073 states, 6151 states have (on average 1.238660380425947) internal successors, (7619), 6331 states have internal predecessors, (7619), 3038 states have call successors, (3038), 885 states have call predecessors, (3038), 882 states have return successors, (3072), 2994 states have call predecessors, (3072), 3038 states have call successors, (3072) [2022-11-26 00:30:53,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10073 states to 10073 states and 13729 transitions. [2022-11-26 00:30:53,722 INFO L78 Accepts]: Start accepts. Automaton has 10073 states and 13729 transitions. Word has length 348 [2022-11-26 00:30:53,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:30:53,724 INFO L495 AbstractCegarLoop]: Abstraction has 10073 states and 13729 transitions. [2022-11-26 00:30:53,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2022-11-26 00:30:53,725 INFO L276 IsEmpty]: Start isEmpty. Operand 10073 states and 13729 transitions. [2022-11-26 00:30:53,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2022-11-26 00:30:53,735 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:30:53,735 INFO L195 NwaCegarLoop]: trace histogram [13, 8, 8, 7, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:30:53,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-26 00:30:53,736 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:30:53,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:30:53,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1398674825, now seen corresponding path program 1 times [2022-11-26 00:30:53,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:30:53,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060803831] [2022-11-26 00:30:53,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:30:53,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:30:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:30:55,694 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2022-11-26 00:30:55,694 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:30:55,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060803831] [2022-11-26 00:30:55,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060803831] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:30:55,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807207417] [2022-11-26 00:30:55,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:30:55,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:30:55,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:30:55,699 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:30:55,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:30:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:30:59,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 6420 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:30:59,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:30:59,202 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2022-11-26 00:30:59,202 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:30:59,202 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807207417] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:30:59,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:30:59,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2022-11-26 00:30:59,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283672524] [2022-11-26 00:30:59,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:30:59,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:30:59,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:30:59,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:30:59,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:30:59,210 INFO L87 Difference]: Start difference. First operand 10073 states and 13729 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 2 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-26 00:31:01,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:31:06,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:31:09,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:31:09,906 INFO L93 Difference]: Finished difference Result 20196 states and 27591 transitions. [2022-11-26 00:31:09,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:31:09,906 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 2 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) Word has length 351 [2022-11-26 00:31:09,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:31:09,948 INFO L225 Difference]: With dead ends: 20196 [2022-11-26 00:31:09,949 INFO L226 Difference]: Without dead ends: 10152 [2022-11-26 00:31:09,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:31:09,982 INFO L413 NwaCegarLoop]: 1434 mSDtfsCounter, 6 mSDsluCounter, 4292 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5726 SdHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:31:09,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5726 Invalid, 990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 988 Invalid, 2 Unknown, 0 Unchecked, 10.3s Time] [2022-11-26 00:31:09,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10152 states. [2022-11-26 00:31:10,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10152 to 10105. [2022-11-26 00:31:10,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10105 states, 6175 states have (on average 1.2377327935222673) internal successors, (7643), 6355 states have internal predecessors, (7643), 3038 states have call successors, (3038), 885 states have call predecessors, (3038), 890 states have return successors, (3104), 3002 states have call predecessors, (3104), 3038 states have call successors, (3104) [2022-11-26 00:31:10,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10105 states to 10105 states and 13785 transitions. [2022-11-26 00:31:10,756 INFO L78 Accepts]: Start accepts. Automaton has 10105 states and 13785 transitions. Word has length 351 [2022-11-26 00:31:10,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:31:10,756 INFO L495 AbstractCegarLoop]: Abstraction has 10105 states and 13785 transitions. [2022-11-26 00:31:10,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 4 states have internal predecessors, (145), 2 states have call successors, (49), 2 states have call predecessors, (49), 3 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) [2022-11-26 00:31:10,757 INFO L276 IsEmpty]: Start isEmpty. Operand 10105 states and 13785 transitions. [2022-11-26 00:31:10,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2022-11-26 00:31:10,769 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:31:10,769 INFO L195 NwaCegarLoop]: trace histogram [13, 8, 8, 7, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:31:10,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:31:10,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-26 00:31:10,983 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:31:10,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:31:10,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1903896522, now seen corresponding path program 1 times [2022-11-26 00:31:10,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:31:10,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677269519] [2022-11-26 00:31:10,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:31:10,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:31:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:31:13,004 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2022-11-26 00:31:13,004 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:31:13,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677269519] [2022-11-26 00:31:13,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677269519] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:31:13,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127543210] [2022-11-26 00:31:13,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:31:13,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:31:13,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:31:13,007 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:31:13,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:31:16,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:31:16,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 6543 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:31:16,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:31:16,687 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 166 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2022-11-26 00:31:16,689 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:31:16,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127543210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:31:16,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:31:16,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2022-11-26 00:31:16,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070844363] [2022-11-26 00:31:16,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:31:16,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:31:16,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:31:16,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:31:16,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:31:16,692 INFO L87 Difference]: Start difference. First operand 10105 states and 13785 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (51), 2 states have call predecessors, (51), 3 states have return successors, (46), 3 states have call predecessors, (46), 2 states have call successors, (46) [2022-11-26 00:31:18,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:31:23,693 WARN L539 Checker$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 00:31:27,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:31:27,317 INFO L93 Difference]: Finished difference Result 20244 states and 27663 transitions. [2022-11-26 00:31:27,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:31:27,317 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (51), 2 states have call predecessors, (51), 3 states have return successors, (46), 3 states have call predecessors, (46), 2 states have call successors, (46) Word has length 359 [2022-11-26 00:31:27,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:31:27,346 INFO L225 Difference]: With dead ends: 20244 [2022-11-26 00:31:27,346 INFO L226 Difference]: Without dead ends: 10168 [2022-11-26 00:31:27,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:31:27,490 INFO L413 NwaCegarLoop]: 1443 mSDtfsCounter, 6 mSDsluCounter, 4314 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5757 SdHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:31:27,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5757 Invalid, 990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 988 Invalid, 2 Unknown, 0 Unchecked, 10.2s Time] [2022-11-26 00:31:27,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10168 states. [2022-11-26 00:31:28,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10168 to 10121. [2022-11-26 00:31:28,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10121 states, 6191 states have (on average 1.237118397674043) internal successors, (7659), 6363 states have internal predecessors, (7659), 3038 states have call successors, (3038), 885 states have call predecessors, (3038), 890 states have return successors, (3104), 3010 states have call predecessors, (3104), 3038 states have call successors, (3104) [2022-11-26 00:31:28,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10121 states to 10121 states and 13801 transitions. [2022-11-26 00:31:28,063 INFO L78 Accepts]: Start accepts. Automaton has 10121 states and 13801 transitions. Word has length 359 [2022-11-26 00:31:28,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:31:28,064 INFO L495 AbstractCegarLoop]: Abstraction has 10121 states and 13801 transitions. [2022-11-26 00:31:28,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (51), 2 states have call predecessors, (51), 3 states have return successors, (46), 3 states have call predecessors, (46), 2 states have call successors, (46) [2022-11-26 00:31:28,064 INFO L276 IsEmpty]: Start isEmpty. Operand 10121 states and 13801 transitions. [2022-11-26 00:31:28,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2022-11-26 00:31:28,071 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:31:28,071 INFO L195 NwaCegarLoop]: trace histogram [13, 8, 8, 7, 7, 7, 7, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:31:28,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:31:28,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-26 00:31:28,283 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:31:28,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:31:28,284 INFO L85 PathProgramCache]: Analyzing trace with hash 870147083, now seen corresponding path program 2 times [2022-11-26 00:31:28,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:31:28,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970960338] [2022-11-26 00:31:28,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:31:28,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:31:28,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:31:30,428 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 517 trivial. 0 not checked. [2022-11-26 00:31:30,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:31:30,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970960338] [2022-11-26 00:31:30,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970960338] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:31:30,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:31:30,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:31:30,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204293962] [2022-11-26 00:31:30,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:31:30,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:31:30,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:31:30,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:31:30,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:31:30,431 INFO L87 Difference]: Start difference. First operand 10121 states and 13801 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-26 00:31:32,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:31:36,832 WARN L539 Checker$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 00:31:39,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:31:39,934 INFO L93 Difference]: Finished difference Result 20294 states and 27730 transitions. [2022-11-26 00:31:39,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:31:39,935 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), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 367 [2022-11-26 00:31:39,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:31:39,967 INFO L225 Difference]: With dead ends: 20294 [2022-11-26 00:31:39,967 INFO L226 Difference]: Without dead ends: 10202 [2022-11-26 00:31:39,994 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:31:39,995 INFO L413 NwaCegarLoop]: 1442 mSDtfsCounter, 7 mSDsluCounter, 2860 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4302 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:31:39,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4302 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 745 Invalid, 2 Unknown, 0 Unchecked, 9.0s Time] [2022-11-26 00:31:40,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10202 states. [2022-11-26 00:31:40,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10202 to 10175. [2022-11-26 00:31:40,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10175 states, 6234 states have (on average 1.2367661212704524) internal successors, (7710), 6409 states have internal predecessors, (7710), 3046 states have call successors, (3046), 885 states have call predecessors, (3046), 893 states have return successors, (3116), 3018 states have call predecessors, (3116), 3046 states have call successors, (3116) [2022-11-26 00:31:40,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10175 states to 10175 states and 13872 transitions. [2022-11-26 00:31:40,542 INFO L78 Accepts]: Start accepts. Automaton has 10175 states and 13872 transitions. Word has length 367 [2022-11-26 00:31:40,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:31:40,543 INFO L495 AbstractCegarLoop]: Abstraction has 10175 states and 13872 transitions. [2022-11-26 00:31:40,543 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), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-26 00:31:40,543 INFO L276 IsEmpty]: Start isEmpty. Operand 10175 states and 13872 transitions. [2022-11-26 00:31:40,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2022-11-26 00:31:40,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:31:40,550 INFO L195 NwaCegarLoop]: trace histogram [13, 8, 8, 7, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:31:40,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-26 00:31:40,550 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:31:40,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:31:40,551 INFO L85 PathProgramCache]: Analyzing trace with hash -1503249878, now seen corresponding path program 1 times [2022-11-26 00:31:40,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:31:40,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812669966] [2022-11-26 00:31:40,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:31:40,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:31:41,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:31:42,437 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2022-11-26 00:31:42,437 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:31:42,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812669966] [2022-11-26 00:31:42,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812669966] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:31:42,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434030964] [2022-11-26 00:31:42,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:31:42,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:31:42,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:31:42,443 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:31:42,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:31:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:31:46,524 INFO L263 TraceCheckSpWp]: Trace formula consists of 6640 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-26 00:31:46,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:31:46,600 INFO L134 CoverageAnalysis]: Checked inductivity of 513 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2022-11-26 00:31:46,600 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:31:46,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434030964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:31:46,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:31:46,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2022-11-26 00:31:46,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392776278] [2022-11-26 00:31:46,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:31:46,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:31:46,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:31:46,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:31:46,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:31:46,604 INFO L87 Difference]: Start difference. First operand 10175 states and 13872 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-26 00:31:48,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:31:53,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:31:57,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:31:57,606 INFO L93 Difference]: Finished difference Result 20384 states and 27841 transitions. [2022-11-26 00:31:57,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:31:57,606 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) Word has length 369 [2022-11-26 00:31:57,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:31:57,635 INFO L225 Difference]: With dead ends: 20384 [2022-11-26 00:31:57,635 INFO L226 Difference]: Without dead ends: 10238 [2022-11-26 00:31:57,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:31:57,659 INFO L413 NwaCegarLoop]: 1440 mSDtfsCounter, 6 mSDsluCounter, 4308 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5748 SdHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:31:57,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5748 Invalid, 990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 988 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2022-11-26 00:31:57,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10238 states. [2022-11-26 00:31:58,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10238 to 10191. [2022-11-26 00:31:58,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10191 states, 6250 states have (on average 1.23616) internal successors, (7726), 6417 states have internal predecessors, (7726), 3046 states have call successors, (3046), 885 states have call predecessors, (3046), 893 states have return successors, (3116), 3026 states have call predecessors, (3116), 3046 states have call successors, (3116) [2022-11-26 00:31:58,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10191 states to 10191 states and 13888 transitions. [2022-11-26 00:31:58,285 INFO L78 Accepts]: Start accepts. Automaton has 10191 states and 13888 transitions. Word has length 369 [2022-11-26 00:31:58,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:31:58,285 INFO L495 AbstractCegarLoop]: Abstraction has 10191 states and 13888 transitions. [2022-11-26 00:31:58,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (52), 2 states have call predecessors, (52), 3 states have return successors, (47), 3 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-26 00:31:58,286 INFO L276 IsEmpty]: Start isEmpty. Operand 10191 states and 13888 transitions. [2022-11-26 00:31:58,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2022-11-26 00:31:58,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:31:58,292 INFO L195 NwaCegarLoop]: trace histogram [13, 8, 8, 7, 7, 7, 7, 7, 7, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-26 00:31:58,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-26 00:31:58,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:31:58,520 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:31:58,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:31:58,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1415884821, now seen corresponding path program 2 times [2022-11-26 00:31:58,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:31:58,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097753233] [2022-11-26 00:31:58,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:31:58,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:31:59,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:32:00,442 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 533 trivial. 0 not checked. [2022-11-26 00:32:00,442 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:32:00,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097753233] [2022-11-26 00:32:00,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097753233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:32:00,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:32:00,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:32:00,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253224230] [2022-11-26 00:32:00,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:32:00,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:32:00,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:32:00,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:32:00,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:32:00,444 INFO L87 Difference]: Start difference. First operand 10191 states and 13888 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-26 00:32:02,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:32:07,469 WARN L539 Checker$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 00:32:11,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:32:11,157 INFO L93 Difference]: Finished difference Result 20416 states and 27873 transitions. [2022-11-26 00:32:11,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:32:11,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) Word has length 377 [2022-11-26 00:32:11,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:32:11,190 INFO L225 Difference]: With dead ends: 20416 [2022-11-26 00:32:11,191 INFO L226 Difference]: Without dead ends: 10254 [2022-11-26 00:32:11,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:32:11,214 INFO L413 NwaCegarLoop]: 1443 mSDtfsCounter, 6 mSDsluCounter, 4314 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5757 SdHoareTripleChecker+Invalid, 990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:32:11,214 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5757 Invalid, 990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 988 Invalid, 2 Unknown, 0 Unchecked, 10.2s Time] [2022-11-26 00:32:11,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10254 states. [2022-11-26 00:32:11,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10254 to 10207. [2022-11-26 00:32:11,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10207 states, 6266 states have (on average 1.2355569741461858) internal successors, (7742), 6425 states have internal predecessors, (7742), 3046 states have call successors, (3046), 885 states have call predecessors, (3046), 893 states have return successors, (3116), 3034 states have call predecessors, (3116), 3046 states have call successors, (3116) [2022-11-26 00:32:11,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10207 states to 10207 states and 13904 transitions. [2022-11-26 00:32:11,768 INFO L78 Accepts]: Start accepts. Automaton has 10207 states and 13904 transitions. Word has length 377 [2022-11-26 00:32:11,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:32:11,769 INFO L495 AbstractCegarLoop]: Abstraction has 10207 states and 13904 transitions. [2022-11-26 00:32:11,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-26 00:32:11,769 INFO L276 IsEmpty]: Start isEmpty. Operand 10207 states and 13904 transitions. [2022-11-26 00:32:11,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2022-11-26 00:32:11,775 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:32:11,776 INFO L195 NwaCegarLoop]: trace histogram [13, 8, 8, 8, 7, 7, 7, 7, 7, 7, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:32:11,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-26 00:32:11,776 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:32:11,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:32:11,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1597214636, now seen corresponding path program 1 times [2022-11-26 00:32:11,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:32:11,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466495231] [2022-11-26 00:32:11,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:32:11,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:32:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:32:14,269 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 570 trivial. 0 not checked. [2022-11-26 00:32:14,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:32:14,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466495231] [2022-11-26 00:32:14,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466495231] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:32:14,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758752858] [2022-11-26 00:32:14,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:32:14,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:32:14,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:32:14,271 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:32:14,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-26 00:32:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:32:18,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 6886 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-26 00:32:18,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:33:37,929 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2022-11-26 00:33:37,930 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:33:37,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758752858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:37,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:33:37,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2022-11-26 00:33:37,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786664660] [2022-11-26 00:33:37,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:37,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:33:37,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:37,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:33:37,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:33:37,933 INFO L87 Difference]: Start difference. First operand 10207 states and 13904 transitions. Second operand has 6 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (48), 1 states have call predecessors, (48), 2 states have return successors, (43), 2 states have call predecessors, (43), 1 states have call successors, (43) [2022-11-26 00:33:40,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:33:47,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:33:55,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:55,119 INFO L93 Difference]: Finished difference Result 10217 states and 13913 transitions. [2022-11-26 00:33:55,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:33:55,119 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (48), 1 states have call predecessors, (48), 2 states have return successors, (43), 2 states have call predecessors, (43), 1 states have call successors, (43) Word has length 385 [2022-11-26 00:33:55,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:55,157 INFO L225 Difference]: With dead ends: 10217 [2022-11-26 00:33:55,157 INFO L226 Difference]: Without dead ends: 10215 [2022-11-26 00:33:55,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:33:55,165 INFO L413 NwaCegarLoop]: 1854 mSDtfsCounter, 1045 mSDsluCounter, 5624 mSDsCounter, 0 mSdLazyCounter, 1827 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1046 SdHoareTripleChecker+Valid, 7478 SdHoareTripleChecker+Invalid, 1829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1827 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:55,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1046 Valid, 7478 Invalid, 1829 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1827 Invalid, 2 Unknown, 0 Unchecked, 16.3s Time] [2022-11-26 00:33:55,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10215 states. [2022-11-26 00:33:55,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10215 to 10207. [2022-11-26 00:33:55,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10207 states, 6266 states have (on average 1.2349186083625918) internal successors, (7738), 6425 states have internal predecessors, (7738), 3046 states have call successors, (3046), 885 states have call predecessors, (3046), 893 states have return successors, (3116), 3034 states have call predecessors, (3116), 3046 states have call successors, (3116) [2022-11-26 00:33:55,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10207 states to 10207 states and 13900 transitions. [2022-11-26 00:33:55,802 INFO L78 Accepts]: Start accepts. Automaton has 10207 states and 13900 transitions. Word has length 385 [2022-11-26 00:33:55,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:55,803 INFO L495 AbstractCegarLoop]: Abstraction has 10207 states and 13900 transitions. [2022-11-26 00:33:55,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 27.4) internal successors, (137), 4 states have internal predecessors, (137), 1 states have call successors, (48), 1 states have call predecessors, (48), 2 states have return successors, (43), 2 states have call predecessors, (43), 1 states have call successors, (43) [2022-11-26 00:33:55,803 INFO L276 IsEmpty]: Start isEmpty. Operand 10207 states and 13900 transitions. [2022-11-26 00:33:55,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2022-11-26 00:33:55,811 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:55,812 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-26 00:33:55,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-26 00:33:56,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-26 00:33:56,021 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:33:56,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:56,022 INFO L85 PathProgramCache]: Analyzing trace with hash -2090860421, now seen corresponding path program 1 times [2022-11-26 00:33:56,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:56,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663012949] [2022-11-26 00:33:56,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:56,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:56,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:58,185 INFO L134 CoverageAnalysis]: Checked inductivity of 907 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 856 trivial. 0 not checked. [2022-11-26 00:33:58,185 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:58,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663012949] [2022-11-26 00:33:58,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663012949] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:58,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:58,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:33:58,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60341954] [2022-11-26 00:33:58,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:58,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:33:58,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:58,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:33:58,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:33:58,188 INFO L87 Difference]: Start difference. First operand 10207 states and 13900 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2022-11-26 00:34:00,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:34:04,567 WARN L539 Checker$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 00:34:11,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:11,807 INFO L93 Difference]: Finished difference Result 22713 states and 30902 transitions. [2022-11-26 00:34:11,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:34:11,808 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) Word has length 415 [2022-11-26 00:34:11,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:11,860 INFO L225 Difference]: With dead ends: 22713 [2022-11-26 00:34:11,860 INFO L226 Difference]: Without dead ends: 12535 [2022-11-26 00:34:11,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:34:11,889 INFO L413 NwaCegarLoop]: 2238 mSDtfsCounter, 1279 mSDsluCounter, 1892 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 20 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 4130 SdHoareTripleChecker+Invalid, 1438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:11,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1279 Valid, 4130 Invalid, 1438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1416 Invalid, 2 Unknown, 0 Unchecked, 13.0s Time] [2022-11-26 00:34:11,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12535 states. [2022-11-26 00:34:12,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12535 to 12523. [2022-11-26 00:34:12,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12523 states, 7715 states have (on average 1.2326636422553467) internal successors, (9510), 7909 states have internal predecessors, (9510), 3685 states have call successors, (3685), 1112 states have call predecessors, (3685), 1121 states have return successors, (3760), 3667 states have call predecessors, (3760), 3685 states have call successors, (3760) [2022-11-26 00:34:12,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12523 states to 12523 states and 16955 transitions. [2022-11-26 00:34:12,554 INFO L78 Accepts]: Start accepts. Automaton has 12523 states and 16955 transitions. Word has length 415 [2022-11-26 00:34:12,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:12,555 INFO L495 AbstractCegarLoop]: Abstraction has 12523 states and 16955 transitions. [2022-11-26 00:34:12,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2022-11-26 00:34:12,555 INFO L276 IsEmpty]: Start isEmpty. Operand 12523 states and 16955 transitions. [2022-11-26 00:34:12,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2022-11-26 00:34:12,564 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:12,564 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 12, 12, 8, 8, 8, 8, 8, 8, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:34:12,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-26 00:34:12,565 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:34:12,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:12,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1791413613, now seen corresponding path program 1 times [2022-11-26 00:34:12,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:12,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586423874] [2022-11-26 00:34:12,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:12,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:13,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:14,252 INFO L134 CoverageAnalysis]: Checked inductivity of 858 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 858 trivial. 0 not checked. [2022-11-26 00:34:14,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:14,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586423874] [2022-11-26 00:34:14,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586423874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:34:14,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:34:14,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:34:14,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946026975] [2022-11-26 00:34:14,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:34:14,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:34:14,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:34:14,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:34:14,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:34:14,255 INFO L87 Difference]: Start difference. First operand 12523 states and 16955 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-11-26 00:34:16,323 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-26 00:34:19,660 WARN L539 Checker$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 00:34:24,053 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 00:34:25,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:25,209 INFO L93 Difference]: Finished difference Result 25837 states and 35176 transitions. [2022-11-26 00:34:25,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:34:25,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 422 [2022-11-26 00:34:25,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:25,254 INFO L225 Difference]: With dead ends: 25837 [2022-11-26 00:34:25,254 INFO L226 Difference]: Without dead ends: 16091 [2022-11-26 00:34:25,275 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 00:34:25,275 INFO L413 NwaCegarLoop]: 1785 mSDtfsCounter, 1472 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 3081 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:25,276 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 3081 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 477 Invalid, 3 Unknown, 0 Unchecked, 10.1s Time] [2022-11-26 00:34:25,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16091 states. [2022-11-26 00:34:25,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16091 to 16078. [2022-11-26 00:34:25,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16078 states, 9923 states have (on average 1.2357150055426787) internal successors, (12262), 10181 states have internal predecessors, (12262), 4737 states have call successors, (4737), 1410 states have call predecessors, (4737), 1416 states have return successors, (4840), 4697 states have call predecessors, (4840), 4737 states have call successors, (4840) [2022-11-26 00:34:25,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16078 states to 16078 states and 21839 transitions. [2022-11-26 00:34:25,947 INFO L78 Accepts]: Start accepts. Automaton has 16078 states and 21839 transitions. Word has length 422 [2022-11-26 00:34:25,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:25,947 INFO L495 AbstractCegarLoop]: Abstraction has 16078 states and 21839 transitions. [2022-11-26 00:34:25,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (67), 2 states have call predecessors, (67), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-11-26 00:34:25,947 INFO L276 IsEmpty]: Start isEmpty. Operand 16078 states and 21839 transitions. [2022-11-26 00:34:25,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2022-11-26 00:34:25,956 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:34:25,956 INFO L195 NwaCegarLoop]: trace histogram [16, 13, 13, 12, 8, 8, 8, 8, 8, 8, 6, 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, 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] [2022-11-26 00:34:25,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-26 00:34:25,956 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:34:25,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:34:25,957 INFO L85 PathProgramCache]: Analyzing trace with hash 653558935, now seen corresponding path program 1 times [2022-11-26 00:34:25,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:34:25,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866518798] [2022-11-26 00:34:25,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:25,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:34:26,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:28,450 INFO L134 CoverageAnalysis]: Checked inductivity of 871 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 860 trivial. 0 not checked. [2022-11-26 00:34:28,450 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:34:28,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866518798] [2022-11-26 00:34:28,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866518798] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:34:28,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961218636] [2022-11-26 00:34:28,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:34:28,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:34:28,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:34:28,452 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:34:28,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf86feb4-d0ba-4c8d-9e4d-bf0f0c464127/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-26 00:34:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:34:33,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 8395 conjuncts, 30 conjunts are in the unsatisfiable core [2022-11-26 00:34:33,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:36:04,483 INFO L134 CoverageAnalysis]: Checked inductivity of 871 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 868 trivial. 0 not checked. [2022-11-26 00:36:04,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:36:08,613 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 8191 disjunctions. This might take some time... [2022-11-26 00:36:13,801 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 8191 disjunctions. [2022-11-26 00:36:13,887 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 16383 disjunctions. This might take some time... [2022-11-26 00:36:36,386 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 16383 disjunctions. [2022-11-26 00:36:36,514 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 32767 disjunctions. This might take some time... [2022-11-26 00:38:26,944 INFO L192 XnfTransformerHelper]: Simplified to conjuction of 32767 disjunctions. [2022-11-26 00:38:27,235 WARN L176 XnfTransformerHelper]: Simplifying conjuction of 65535 disjunctions. This might take some time...