./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-wireless-orinoco-orinoco_usb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc2a830-00f8-4e98-95cb-ccdadd57b7f7/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc2a830-00f8-4e98-95cb-ccdadd57b7f7/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc2a830-00f8-4e98-95cb-ccdadd57b7f7/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc2a830-00f8-4e98-95cb-ccdadd57b7f7/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc2a830-00f8-4e98-95cb-ccdadd57b7f7/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc2a830-00f8-4e98-95cb-ccdadd57b7f7/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b087d00fa9bd90976fef9b627e09b5ad5b9a94f81c1bccd132a9fa7492421f28 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 10:01:22,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:01:22,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:01:22,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:01:22,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:01:22,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:01:22,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:01:22,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:01:22,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:01:22,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:01:22,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:01:22,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:01:22,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:01:22,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:01:22,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:01:22,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:01:22,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:01:22,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:01:22,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:01:22,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:01:22,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:01:22,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:01:22,953 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:01:22,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:01:22,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:01:22,964 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:01:22,964 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:01:22,965 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:01:22,965 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:01:22,966 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:01:22,966 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:01:22,967 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:01:22,967 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:01:22,968 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:01:22,969 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:01:22,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:01:22,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:01:22,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:01:22,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:01:22,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:01:22,971 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:01:22,972 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc2a830-00f8-4e98-95cb-ccdadd57b7f7/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 10:01:22,989 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:01:22,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:01:22,990 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:01:22,990 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:01:22,990 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:01:22,991 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:01:22,991 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:01:22,991 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:01:22,991 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:01:22,991 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:01:22,991 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:01:22,991 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:01:22,992 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:01:22,992 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:01:22,992 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:01:22,992 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:01:22,992 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:01:22,992 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:01:22,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:01:22,993 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:01:22,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:01:22,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:01:22,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:01:22,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:01:22,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:01:22,994 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:01:22,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:01:22,994 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:01:22,995 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:01:22,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:01:22,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:01:22,995 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:01:22,995 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:01:22,995 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:01:22,996 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:01:22,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:01:22,996 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:01:22,996 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:01:22,996 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_afc2a830-00f8-4e98-95cb-ccdadd57b7f7/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc2a830-00f8-4e98-95cb-ccdadd57b7f7/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b087d00fa9bd90976fef9b627e09b5ad5b9a94f81c1bccd132a9fa7492421f28 [2022-12-14 10:01:23,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:01:23,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:01:23,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:01:23,180 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:01:23,180 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:01:23,182 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc2a830-00f8-4e98-95cb-ccdadd57b7f7/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2022-12-14 10:01:25,713 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:01:26,053 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:01:26,053 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc2a830-00f8-4e98-95cb-ccdadd57b7f7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2022-12-14 10:01:26,078 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc2a830-00f8-4e98-95cb-ccdadd57b7f7/bin/utaipan-gh47qXpMRh/data/d0bfafe26/cd3fd131a8da4786b7730dadf52f9d2c/FLAGb10bdbf85 [2022-12-14 10:01:26,263 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc2a830-00f8-4e98-95cb-ccdadd57b7f7/bin/utaipan-gh47qXpMRh/data/d0bfafe26/cd3fd131a8da4786b7730dadf52f9d2c [2022-12-14 10:01:26,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:01:26,266 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:01:26,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:01:26,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:01:26,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:01:26,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:01:26" (1/1) ... [2022-12-14 10:01:26,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ba353f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:26, skipping insertion in model container [2022-12-14 10:01:26,271 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:01:26" (1/1) ... [2022-12-14 10:01:26,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:01:26,374 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:01:26,770 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 10:01:26,782 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 10:01:26,788 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 10:01:26,949 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 10:01:26,970 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_bh [2022-12-14 10:01:26,979 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_bh [2022-12-14 10:01:26,989 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 10:01:27,005 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 10:01:27,080 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 10:01:27,081 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 10:01:27,088 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 10:01:27,088 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,235 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 10:01:27,236 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 10:01:27,237 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:01:27,237 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:01:27,244 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-12-14 10:01:27,245 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,249 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:01:27,250 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:01:27,251 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:01:27,251 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 10:01:27,255 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-14 10:01:27,255 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-14 10:01:27,255 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-14 10:01:27,256 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-14 10:01:27,259 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,260 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,262 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,273 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,275 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,277 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,283 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,285 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,287 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,288 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-12-14 10:01:27,292 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:01:27,294 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 10:01:27,294 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 10:01:27,294 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 10:01:27,307 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,308 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,312 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,312 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 10:01:27,316 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,317 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,318 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,319 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 10:01:27,320 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,320 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:01:27,326 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,327 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,330 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,331 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,332 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,332 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,333 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,352 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,358 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,365 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,366 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,366 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,390 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 10:01:27,395 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,396 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,396 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,398 WARN L623 FunctionHandler]: Unknown extern function orinoco_process_xmit_skb [2022-12-14 10:01:27,400 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 10:01:27,400 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,401 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 10:01:27,408 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,409 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,409 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,409 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 10:01:27,410 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,414 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 10:01:27,415 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 10:01:27,415 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 10:01:27,417 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,418 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,419 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,419 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,420 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,420 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,421 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,421 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,422 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,422 WARN L623 FunctionHandler]: Unknown extern function __orinoco_ev_rx [2022-12-14 10:01:27,423 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 10:01:27,423 WARN L623 FunctionHandler]: Unknown extern function __orinoco_ev_info [2022-12-14 10:01:27,428 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 10:01:27,428 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 10:01:27,429 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-12-14 10:01:27,429 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-12-14 10:01:27,430 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,431 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:01:27,431 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:01:27,431 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 10:01:27,431 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:01:27,432 WARN L623 FunctionHandler]: Unknown extern function orinoco_if_del [2022-12-14 10:01:27,432 WARN L623 FunctionHandler]: Unknown extern function free_orinocodev [2022-12-14 10:01:27,450 WARN L623 FunctionHandler]: Unknown extern function alloc_orinocodev [2022-12-14 10:01:27,451 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,451 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 10:01:27,451 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 10:01:27,452 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 10:01:27,453 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,454 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,454 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,454 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,455 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,456 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,456 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,456 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,457 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,458 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,458 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-12-14 10:01:27,459 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,459 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,460 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,460 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,460 WARN L623 FunctionHandler]: Unknown extern function orinoco_init [2022-12-14 10:01:27,461 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,461 WARN L623 FunctionHandler]: Unknown extern function orinoco_if_add [2022-12-14 10:01:27,461 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,462 WARN L623 FunctionHandler]: Unknown extern function free_orinocodev [2022-12-14 10:01:27,462 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-14 10:01:27,467 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:27,686 WARN L623 FunctionHandler]: Unknown extern function orinoco_open [2022-12-14 10:01:27,686 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 10:01:27,687 WARN L623 FunctionHandler]: Unknown extern function orinoco_set_multicast_list [2022-12-14 10:01:27,687 WARN L623 FunctionHandler]: Unknown extern function orinoco_stop [2022-12-14 10:01:27,687 WARN L623 FunctionHandler]: Unknown extern function orinoco_tx_timeout [2022-12-14 10:01:27,687 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 10:01:27,688 WARN L623 FunctionHandler]: Unknown extern function orinoco_change_mtu [2022-12-14 10:01:27,688 WARN L623 FunctionHandler]: Unknown extern function orinoco_get_stats [2022-12-14 10:01:27,694 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 10:01:27,704 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 10:01:27,704 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 10:01:27,706 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_usb_register_driver [2022-12-14 10:01:27,709 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 10:01:27,710 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 10:01:27,711 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 10:01:27,711 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:01:27,712 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:01:27,712 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:01:27,712 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:01:27,713 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:01:27,713 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-12-14 10:01:27,713 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:01:27,714 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-12-14 10:01:27,714 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-12-14 10:01:27,715 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:01:27,715 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 10:01:27,716 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:01:27,717 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 10:01:27,717 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 10:01:27,759 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 10:01:27,765 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,809 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,813 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,816 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,819 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,831 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,835 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,838 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,840 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,843 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,854 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,857 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,861 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,864 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,868 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,881 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,884 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,888 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,891 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,895 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,907 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,907 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,907 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,911 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,914 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,927 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,930 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,934 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,937 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,940 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,953 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,956 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,959 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,963 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,967 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,980 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,983 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,987 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,990 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:27,994 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,008 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,011 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,015 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,018 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,021 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,044 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,045 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,045 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,048 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,052 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,064 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,064 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,065 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,068 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,072 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,084 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,087 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,091 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,094 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,098 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,111 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,114 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,117 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,121 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,124 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,137 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,137 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,138 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,138 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,138 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,138 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,138 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,139 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,139 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,139 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,139 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,140 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,140 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,140 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,162 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_afc2a830-00f8-4e98-95cb-ccdadd57b7f7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357318,357331] [2022-12-14 10:01:28,166 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_afc2a830-00f8-4e98-95cb-ccdadd57b7f7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357463,357476] [2022-12-14 10:01:28,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:01:28,198 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:01:28,266 WARN L623 FunctionHandler]: Unknown extern function __list_add [2022-12-14 10:01:28,266 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 10:01:28,266 WARN L623 FunctionHandler]: Unknown extern function __list_del_entry [2022-12-14 10:01:28,269 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-12-14 10:01:28,269 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_bh [2022-12-14 10:01:28,270 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_bh [2022-12-14 10:01:28,270 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-12-14 10:01:28,271 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-12-14 10:01:28,273 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-12-14 10:01:28,273 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-12-14 10:01:28,274 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 10:01:28,274 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,283 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-12-14 10:01:28,283 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 10:01:28,284 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:01:28,284 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:01:28,284 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-12-14 10:01:28,285 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,286 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:01:28,286 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:01:28,286 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:01:28,286 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-12-14 10:01:28,287 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-14 10:01:28,287 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-14 10:01:28,287 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-14 10:01:28,287 WARN L623 FunctionHandler]: Unknown extern function complete [2022-12-14 10:01:28,289 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,289 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,290 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,291 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,292 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,292 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,294 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,294 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,295 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,295 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-12-14 10:01:28,312 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-12-14 10:01:28,313 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-12-14 10:01:28,313 WARN L623 FunctionHandler]: Unknown extern function schedule [2022-12-14 10:01:28,313 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-12-14 10:01:28,316 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,316 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,317 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,318 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 10:01:28,318 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,319 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,320 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,320 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 10:01:28,321 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,321 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:01:28,322 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,322 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,324 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,324 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,325 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,325 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,326 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,329 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,330 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,330 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,331 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,331 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,336 WARN L623 FunctionHandler]: Unknown extern function __dynamic_pr_debug [2022-12-14 10:01:28,338 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,338 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,339 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,339 WARN L623 FunctionHandler]: Unknown extern function orinoco_process_xmit_skb [2022-12-14 10:01:28,341 WARN L623 FunctionHandler]: Unknown extern function net_ratelimit [2022-12-14 10:01:28,341 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,341 WARN L623 FunctionHandler]: Unknown extern function consume_skb [2022-12-14 10:01:28,342 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,342 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,343 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,343 WARN L623 FunctionHandler]: Unknown extern function usb_control_msg [2022-12-14 10:01:28,343 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,344 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 10:01:28,344 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 10:01:28,344 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 10:01:28,345 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,345 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,346 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,346 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,347 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,347 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,348 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,348 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,348 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,349 WARN L623 FunctionHandler]: Unknown extern function __orinoco_ev_rx [2022-12-14 10:01:28,349 WARN L623 FunctionHandler]: Unknown extern function iowrite16 [2022-12-14 10:01:28,350 WARN L623 FunctionHandler]: Unknown extern function __orinoco_ev_info [2022-12-14 10:01:28,351 WARN L623 FunctionHandler]: Unknown extern function mutex_lock_nested [2022-12-14 10:01:28,351 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-12-14 10:01:28,352 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-12-14 10:01:28,352 WARN L623 FunctionHandler]: Unknown extern function wait_for_completion [2022-12-14 10:01:28,354 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,354 WARN L623 FunctionHandler]: Unknown extern function mutex_unlock [2022-12-14 10:01:28,354 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:01:28,354 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-12-14 10:01:28,355 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-12-14 10:01:28,355 WARN L623 FunctionHandler]: Unknown extern function orinoco_if_del [2022-12-14 10:01:28,355 WARN L623 FunctionHandler]: Unknown extern function free_orinocodev [2022-12-14 10:01:28,357 WARN L623 FunctionHandler]: Unknown extern function alloc_orinocodev [2022-12-14 10:01:28,357 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,357 WARN L623 FunctionHandler]: Unknown extern function __mutex_init [2022-12-14 10:01:28,358 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 10:01:28,358 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-12-14 10:01:28,359 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,359 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,359 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,359 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,360 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,360 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,360 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,360 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,361 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,361 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,362 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-12-14 10:01:28,362 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,363 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,363 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,363 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,363 WARN L623 FunctionHandler]: Unknown extern function orinoco_init [2022-12-14 10:01:28,364 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,364 WARN L623 FunctionHandler]: Unknown extern function orinoco_if_add [2022-12-14 10:01:28,364 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,364 WARN L623 FunctionHandler]: Unknown extern function free_orinocodev [2022-12-14 10:01:28,365 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-12-14 10:01:28,366 WARN L623 FunctionHandler]: Unknown extern function printk [2022-12-14 10:01:28,372 WARN L623 FunctionHandler]: Unknown extern function orinoco_open [2022-12-14 10:01:28,372 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-12-14 10:01:28,373 WARN L623 FunctionHandler]: Unknown extern function orinoco_set_multicast_list [2022-12-14 10:01:28,373 WARN L623 FunctionHandler]: Unknown extern function orinoco_stop [2022-12-14 10:01:28,373 WARN L623 FunctionHandler]: Unknown extern function orinoco_tx_timeout [2022-12-14 10:01:28,373 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-12-14 10:01:28,373 WARN L623 FunctionHandler]: Unknown extern function orinoco_change_mtu [2022-12-14 10:01:28,373 WARN L623 FunctionHandler]: Unknown extern function orinoco_get_stats [2022-12-14 10:01:28,378 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-12-14 10:01:28,387 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-12-14 10:01:28,388 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-12-14 10:01:28,389 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_usb_register_driver [2022-12-14 10:01:28,393 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-12-14 10:01:28,394 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 10:01:28,394 WARN L623 FunctionHandler]: Unknown extern function mod_timer [2022-12-14 10:01:28,395 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:01:28,395 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:01:28,395 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:01:28,395 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:01:28,396 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:01:28,396 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-12-14 10:01:28,396 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:01:28,396 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-12-14 10:01:28,396 WARN L623 FunctionHandler]: Unknown extern function del_timer [2022-12-14 10:01:28,397 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:01:28,397 WARN L623 FunctionHandler]: Unknown extern function del_timer_sync [2022-12-14 10:01:28,397 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-12-14 10:01:28,398 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-12-14 10:01:28,398 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-12-14 10:01:28,400 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-12-14 10:01:28,400 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,403 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,404 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,404 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,405 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,405 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,406 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,406 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,407 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,407 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,408 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,408 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,409 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,409 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,410 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,410 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,411 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,411 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,412 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,412 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,413 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,413 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,413 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,413 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,414 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,414 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,414 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,415 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,415 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,415 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,416 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,416 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,416 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,416 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,417 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,417 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,417 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,418 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,418 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,418 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,419 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,419 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,419 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,420 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,420 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,420 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,421 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,421 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,421 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,421 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,422 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,422 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,422 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,423 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,423 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,423 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,424 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,424 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,424 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,424 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,425 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,425 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,426 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,426 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,426 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,427 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,427 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,427 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,427 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,427 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,428 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,428 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,428 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,428 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,428 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,428 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,428 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,428 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,429 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-12-14 10:01:28,430 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_afc2a830-00f8-4e98-95cb-ccdadd57b7f7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357318,357331] [2022-12-14 10:01:28,430 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_afc2a830-00f8-4e98-95cb-ccdadd57b7f7/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i[357463,357476] [2022-12-14 10:01:28,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:01:28,608 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:01:28,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:28 WrapperNode [2022-12-14 10:01:28,608 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:01:28,609 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:01:28,609 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:01:28,609 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:01:28,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:28" (1/1) ... [2022-12-14 10:01:28,674 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:28" (1/1) ... [2022-12-14 10:01:28,768 INFO L138 Inliner]: procedures = 421, calls = 1839, calls flagged for inlining = 205, calls inlined = 179, statements flattened = 4225 [2022-12-14 10:01:28,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:01:28,768 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:01:28,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:01:28,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:01:28,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:28" (1/1) ... [2022-12-14 10:01:28,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:28" (1/1) ... [2022-12-14 10:01:28,797 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:28" (1/1) ... [2022-12-14 10:01:28,797 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:28" (1/1) ... [2022-12-14 10:01:28,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:28" (1/1) ... [2022-12-14 10:01:28,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:28" (1/1) ... [2022-12-14 10:01:28,871 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:28" (1/1) ... [2022-12-14 10:01:28,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:28" (1/1) ... [2022-12-14 10:01:28,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:01:28,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:01:28,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:01:28,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:01:28,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:28" (1/1) ... [2022-12-14 10:01:28,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:01:28,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc2a830-00f8-4e98-95cb-ccdadd57b7f7/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:01:28,919 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc2a830-00f8-4e98-95cb-ccdadd57b7f7/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:01:28,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc2a830-00f8-4e98-95cb-ccdadd57b7f7/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:01:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure build_crc [2022-12-14 10:01:28,952 INFO L138 BoogieDeclarations]: Found implementation of procedure build_crc [2022-12-14 10:01:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure orinoco_set_multicast_list [2022-12-14 10:01:28,953 INFO L138 BoogieDeclarations]: Found implementation of procedure orinoco_set_multicast_list [2022-12-14 10:01:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-12-14 10:01:28,953 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-12-14 10:01:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_87 [2022-12-14 10:01:28,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_87 [2022-12-14 10:01:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-12-14 10:01:28,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-12-14 10:01:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_lock_irqsave [2022-12-14 10:01:28,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_lock_irqsave [2022-12-14 10:01:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-12-14 10:01:28,953 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-12-14 10:01:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-12-14 10:01:28,953 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-12-14 10:01:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure free_orinocodev [2022-12-14 10:01:28,953 INFO L138 BoogieDeclarations]: Found implementation of procedure free_orinocodev [2022-12-14 10:01:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-12-14 10:01:28,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-12-14 10:01:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-12-14 10:01:28,953 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-12-14 10:01:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-12-14 10:01:28,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-12-14 10:01:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_8051_cpucs [2022-12-14 10:01:28,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_8051_cpucs [2022-12-14 10:01:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:01:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-12-14 10:01:28,954 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-12-14 10:01:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure orinoco_unlock [2022-12-14 10:01:28,954 INFO L138 BoogieDeclarations]: Found implementation of procedure orinoco_unlock [2022-12-14 10:01:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure orinoco_open [2022-12-14 10:01:28,954 INFO L138 BoogieDeclarations]: Found implementation of procedure orinoco_open [2022-12-14 10:01:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-12-14 10:01:28,954 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-12-14 10:01:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-12-14 10:01:28,954 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-12-14 10:01:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_unlock_irqrestore [2022-12-14 10:01:28,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_unlock_irqrestore [2022-12-14 10:01:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-12-14 10:01:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_disconnect [2022-12-14 10:01:28,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_disconnect [2022-12-14 10:01:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-12-14 10:01:28,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-12-14 10:01:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 10:01:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-12-14 10:01:28,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-12-14 10:01:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 10:01:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-12-14 10:01:28,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-12-14 10:01:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-12-14 10:01:28,955 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-12-14 10:01:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_init [2022-12-14 10:01:28,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_init [2022-12-14 10:01:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-12-14 10:01:28,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-12-14 10:01:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-12-14 10:01:28,955 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-12-14 10:01:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-12-14 10:01:28,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-12-14 10:01:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_hard_reset [2022-12-14 10:01:28,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_hard_reset [2022-12-14 10:01:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-12-14 10:01:28,955 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-12-14 10:01:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 10:01:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-12-14 10:01:28,967 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-12-14 10:01:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:01:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-12-14 10:01:28,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-12-14 10:01:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 10:01:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-12-14 10:01:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-12-14 10:01:28,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-12-14 10:01:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-12-14 10:01:28,968 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-12-14 10:01:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-12-14 10:01:28,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-12-14 10:01:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_request_context_put [2022-12-14 10:01:28,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_request_context_put [2022-12-14 10:01:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-12-14 10:01:28,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-12-14 10:01:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-12-14 10:01:28,968 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-12-14 10:01:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_submit_in_urb [2022-12-14 10:01:28,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_submit_in_urb [2022-12-14 10:01:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-12-14 10:01:28,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-12-14 10:01:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-12-14 10:01:28,969 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-12-14 10:01:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_lock_irq [2022-12-14 10:01:28,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_lock_irq [2022-12-14 10:01:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:01:28,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:01:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure ndev_priv [2022-12-14 10:01:28,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ndev_priv [2022-12-14 10:01:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-12-14 10:01:28,969 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-12-14 10:01:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-12-14 10:01:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-12-14 10:01:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-12-14 10:01:28,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-12-14 10:01:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-12-14 10:01:28,970 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-12-14 10:01:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_unlock_irq [2022-12-14 10:01:28,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_unlock_irq [2022-12-14 10:01:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:01:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-12-14 10:01:28,970 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-12-14 10:01:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-12-14 10:01:28,970 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-12-14 10:01:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 10:01:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2022-12-14 10:01:28,970 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2022-12-14 10:01:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_121 [2022-12-14 10:01:28,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_121 [2022-12-14 10:01:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 10:01:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure orinoco_tx_timeout [2022-12-14 10:01:28,971 INFO L138 BoogieDeclarations]: Found implementation of procedure orinoco_tx_timeout [2022-12-14 10:01:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_program_end [2022-12-14 10:01:28,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_program_end [2022-12-14 10:01:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-12-14 10:01:28,971 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-12-14 10:01:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-12-14 10:01:28,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-12-14 10:01:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-12-14 10:01:28,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-12-14 10:01:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_orinoco_driver_exit_10_2 [2022-12-14 10:01:28,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_orinoco_driver_exit_10_2 [2022-12-14 10:01:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure orinoco_stop [2022-12-14 10:01:28,971 INFO L138 BoogieDeclarations]: Found implementation of procedure orinoco_stop [2022-12-14 10:01:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_access_ltv [2022-12-14 10:01:28,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_access_ltv [2022-12-14 10:01:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-12-14 10:01:28,971 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-12-14 10:01:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_write_ltv [2022-12-14 10:01:28,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_write_ltv [2022-12-14 10:01:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_mod_timer [2022-12-14 10:01:28,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_mod_timer [2022-12-14 10:01:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-12-14 10:01:28,972 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-12-14 10:01:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-12-14 10:01:28,972 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-12-14 10:01:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-12-14 10:01:28,972 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-12-14 10:01:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_req_queue_run [2022-12-14 10:01:28,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_req_queue_run [2022-12-14 10:01:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-12-14 10:01:28,972 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-12-14 10:01:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_122 [2022-12-14 10:01:28,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_122 [2022-12-14 10:01:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_ctx_complete [2022-12-14 10:01:28,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_ctx_complete [2022-12-14 10:01:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_delete [2022-12-14 10:01:28,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_delete [2022-12-14 10:01:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 10:01:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_alloc_ctx [2022-12-14 10:01:28,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_alloc_ctx [2022-12-14 10:01:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-12-14 10:01:28,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-12-14 10:01:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-12-14 10:01:28,973 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-12-14 10:01:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_reply_inc [2022-12-14 10:01:28,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_reply_inc [2022-12-14 10:01:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_req_lock_of_ezusb_priv [2022-12-14 10:01:28,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_req_lock_of_ezusb_priv [2022-12-14 10:01:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_docmd_wait [2022-12-14 10:01:28,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_docmd_wait [2022-12-14 10:01:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-12-14 10:01:28,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-12-14 10:01:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_3_4 [2022-12-14 10:01:28,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_3_4 [2022-12-14 10:01:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:01:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-12-14 10:01:28,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-12-14 10:01:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure ezusb_complete_all [2022-12-14 10:01:28,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ezusb_complete_all [2022-12-14 10:01:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-12-14 10:01:28,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-12-14 10:01:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-12-14 10:01:28,973 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-12-14 10:01:29,449 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:01:29,451 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:01:29,726 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-12-14 10:01:31,486 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-12-14 10:01:31,566 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:01:32,108 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:01:32,108 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 10:01:32,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:01:32 BoogieIcfgContainer [2022-12-14 10:01:32,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:01:32,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:01:32,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:01:32,115 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:01:32,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:01:26" (1/3) ... [2022-12-14 10:01:32,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9ab99f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:01:32, skipping insertion in model container [2022-12-14 10:01:32,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:01:28" (2/3) ... [2022-12-14 10:01:32,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b9ab99f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:01:32, skipping insertion in model container [2022-12-14 10:01:32,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:01:32" (3/3) ... [2022-12-14 10:01:32,117 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-orinoco-orinoco_usb.cil.i [2022-12-14 10:01:32,132 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:01:32,132 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 10:01:32,192 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:01:32,197 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;@1e7d97e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:01:32,198 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 10:01:32,205 INFO L276 IsEmpty]: Start isEmpty. Operand has 1087 states, 647 states have (on average 1.3415765069551777) internal successors, (868), 660 states have internal predecessors, (868), 358 states have call successors, (358), 82 states have call predecessors, (358), 81 states have return successors, (351), 347 states have call predecessors, (351), 351 states have call successors, (351) [2022-12-14 10:01:32,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-12-14 10:01:32,227 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:01:32,228 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:01:32,229 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:01:32,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:01:32,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1871364577, now seen corresponding path program 1 times [2022-12-14 10:01:32,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:01:32,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080120318] [2022-12-14 10:01:32,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:01:32,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:01:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:01:32,757 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-12-14 10:01:32,758 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:01:32,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080120318] [2022-12-14 10:01:32,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080120318] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:01:32,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:01:32,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:01:32,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573485331] [2022-12-14 10:01:32,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:01:32,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:01:32,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:01:32,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:01:32,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:01:32,790 INFO L87 Difference]: Start difference. First operand has 1087 states, 647 states have (on average 1.3415765069551777) internal successors, (868), 660 states have internal predecessors, (868), 358 states have call successors, (358), 82 states have call predecessors, (358), 81 states have return successors, (351), 347 states have call predecessors, (351), 351 states have call successors, (351) Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 10:01:34,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:01:34,205 INFO L93 Difference]: Finished difference Result 3021 states and 4455 transitions. [2022-12-14 10:01:34,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:01:34,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 179 [2022-12-14 10:01:34,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:01:34,233 INFO L225 Difference]: With dead ends: 3021 [2022-12-14 10:01:34,233 INFO L226 Difference]: Without dead ends: 1900 [2022-12-14 10:01:34,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:01:34,249 INFO L413 NwaCegarLoop]: 1695 mSDtfsCounter, 1252 mSDsluCounter, 1285 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1252 SdHoareTripleChecker+Valid, 2980 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:01:34,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1252 Valid, 2980 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 10:01:34,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2022-12-14 10:01:34,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1896. [2022-12-14 10:01:34,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1896 states, 1150 states have (on average 1.3269565217391304) internal successors, (1526), 1176 states have internal predecessors, (1526), 589 states have call successors, (589), 156 states have call predecessors, (589), 156 states have return successors, (589), 579 states have call predecessors, (589), 589 states have call successors, (589) [2022-12-14 10:01:34,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1896 states to 1896 states and 2704 transitions. [2022-12-14 10:01:34,388 INFO L78 Accepts]: Start accepts. Automaton has 1896 states and 2704 transitions. Word has length 179 [2022-12-14 10:01:34,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:01:34,388 INFO L495 AbstractCegarLoop]: Abstraction has 1896 states and 2704 transitions. [2022-12-14 10:01:34,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 10:01:34,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1896 states and 2704 transitions. [2022-12-14 10:01:34,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2022-12-14 10:01:34,392 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:01:34,393 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:01:34,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:01:34,393 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:01:34,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:01:34,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1015764827, now seen corresponding path program 1 times [2022-12-14 10:01:34,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:01:34,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482580179] [2022-12-14 10:01:34,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:01:34,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:01:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:01:34,686 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 870 trivial. 0 not checked. [2022-12-14 10:01:34,686 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:01:34,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482580179] [2022-12-14 10:01:34,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482580179] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:01:34,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:01:34,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:01:34,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017843683] [2022-12-14 10:01:34,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:01:34,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:01:34,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:01:34,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:01:34,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:01:34,690 INFO L87 Difference]: Start difference. First operand 1896 states and 2704 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 10:01:35,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:01:35,882 INFO L93 Difference]: Finished difference Result 5065 states and 7211 transitions. [2022-12-14 10:01:35,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:01:35,883 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 186 [2022-12-14 10:01:35,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:01:35,895 INFO L225 Difference]: With dead ends: 5065 [2022-12-14 10:01:35,896 INFO L226 Difference]: Without dead ends: 3200 [2022-12-14 10:01:35,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:01:35,902 INFO L413 NwaCegarLoop]: 1635 mSDtfsCounter, 1075 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 2883 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:01:35,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1075 Valid, 2883 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 10:01:35,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3200 states. [2022-12-14 10:01:35,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3200 to 3194. [2022-12-14 10:01:35,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3194 states, 1947 states have (on average 1.3271700051361068) internal successors, (2584), 1997 states have internal predecessors, (2584), 971 states have call successors, (971), 275 states have call predecessors, (971), 275 states have return successors, (971), 947 states have call predecessors, (971), 971 states have call successors, (971) [2022-12-14 10:01:36,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3194 states to 3194 states and 4526 transitions. [2022-12-14 10:01:36,011 INFO L78 Accepts]: Start accepts. Automaton has 3194 states and 4526 transitions. Word has length 186 [2022-12-14 10:01:36,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:01:36,011 INFO L495 AbstractCegarLoop]: Abstraction has 3194 states and 4526 transitions. [2022-12-14 10:01:36,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-12-14 10:01:36,012 INFO L276 IsEmpty]: Start isEmpty. Operand 3194 states and 4526 transitions. [2022-12-14 10:01:36,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-12-14 10:01:36,015 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:01:36,015 INFO L195 NwaCegarLoop]: trace histogram [17, 15, 15, 15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:01:36,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 10:01:36,015 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:01:36,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:01:36,016 INFO L85 PathProgramCache]: Analyzing trace with hash -2078456210, now seen corresponding path program 1 times [2022-12-14 10:01:36,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:01:36,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268789525] [2022-12-14 10:01:36,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:01:36,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:01:36,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:01:36,321 INFO L134 CoverageAnalysis]: Checked inductivity of 905 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 902 trivial. 0 not checked. [2022-12-14 10:01:36,322 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:01:36,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268789525] [2022-12-14 10:01:36,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268789525] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:01:36,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:01:36,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:01:36,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591355083] [2022-12-14 10:01:36,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:01:36,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:01:36,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:01:36,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:01:36,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:01:36,324 INFO L87 Difference]: Start difference. First operand 3194 states and 4526 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-14 10:01:37,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:01:37,412 INFO L93 Difference]: Finished difference Result 7702 states and 10868 transitions. [2022-12-14 10:01:37,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:01:37,412 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 196 [2022-12-14 10:01:37,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:01:37,441 INFO L225 Difference]: With dead ends: 7702 [2022-12-14 10:01:37,441 INFO L226 Difference]: Without dead ends: 4539 [2022-12-14 10:01:37,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:01:37,456 INFO L413 NwaCegarLoop]: 1525 mSDtfsCounter, 1168 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1168 SdHoareTripleChecker+Valid, 2760 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:01:37,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1168 Valid, 2760 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 10:01:37,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4539 states. [2022-12-14 10:01:37,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4539 to 4537. [2022-12-14 10:01:37,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4537 states, 2767 states have (on average 1.321647994217564) internal successors, (3657), 2840 states have internal predecessors, (3657), 1359 states have call successors, (1359), 410 states have call predecessors, (1359), 410 states have return successors, (1359), 1325 states have call predecessors, (1359), 1359 states have call successors, (1359) [2022-12-14 10:01:37,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4537 states to 4537 states and 6375 transitions. [2022-12-14 10:01:37,624 INFO L78 Accepts]: Start accepts. Automaton has 4537 states and 6375 transitions. Word has length 196 [2022-12-14 10:01:37,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:01:37,624 INFO L495 AbstractCegarLoop]: Abstraction has 4537 states and 6375 transitions. [2022-12-14 10:01:37,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-14 10:01:37,625 INFO L276 IsEmpty]: Start isEmpty. Operand 4537 states and 6375 transitions. [2022-12-14 10:01:37,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-12-14 10:01:37,627 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:01:37,627 INFO L195 NwaCegarLoop]: trace histogram [17, 15, 15, 15, 15, 15, 15, 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] [2022-12-14 10:01:37,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 10:01:37,628 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:01:37,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:01:37,628 INFO L85 PathProgramCache]: Analyzing trace with hash -38000316, now seen corresponding path program 1 times [2022-12-14 10:01:37,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:01:37,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635515013] [2022-12-14 10:01:37,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:01:37,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:01:37,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:01:37,861 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 902 trivial. 0 not checked. [2022-12-14 10:01:37,862 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:01:37,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635515013] [2022-12-14 10:01:37,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635515013] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:01:37,862 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:01:37,862 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:01:37,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210149082] [2022-12-14 10:01:37,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:01:37,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:01:37,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:01:37,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:01:37,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:01:37,864 INFO L87 Difference]: Start difference. First operand 4537 states and 6375 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-14 10:01:39,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:01:39,198 INFO L93 Difference]: Finished difference Result 9531 states and 13376 transitions. [2022-12-14 10:01:39,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:01:39,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 204 [2022-12-14 10:01:39,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:01:39,216 INFO L225 Difference]: With dead ends: 9531 [2022-12-14 10:01:39,216 INFO L226 Difference]: Without dead ends: 5025 [2022-12-14 10:01:39,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:01:39,229 INFO L413 NwaCegarLoop]: 1948 mSDtfsCounter, 1070 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 3214 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:01:39,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1070 Valid, 3214 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 10:01:39,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5025 states. [2022-12-14 10:01:39,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5025 to 5021. [2022-12-14 10:01:39,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5021 states, 3072 states have (on average 1.3216145833333333) internal successors, (4060), 3153 states have internal predecessors, (4060), 1489 states have call successors, (1489), 459 states have call predecessors, (1489), 459 states have return successors, (1489), 1449 states have call predecessors, (1489), 1489 states have call successors, (1489) [2022-12-14 10:01:39,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5021 states to 5021 states and 7038 transitions. [2022-12-14 10:01:39,449 INFO L78 Accepts]: Start accepts. Automaton has 5021 states and 7038 transitions. Word has length 204 [2022-12-14 10:01:39,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:01:39,450 INFO L495 AbstractCegarLoop]: Abstraction has 5021 states and 7038 transitions. [2022-12-14 10:01:39,450 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-12-14 10:01:39,450 INFO L276 IsEmpty]: Start isEmpty. Operand 5021 states and 7038 transitions. [2022-12-14 10:01:39,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-12-14 10:01:39,455 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:01:39,456 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 3, 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] [2022-12-14 10:01:39,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 10:01:39,456 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:01:39,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:01:39,457 INFO L85 PathProgramCache]: Analyzing trace with hash 262935002, now seen corresponding path program 1 times [2022-12-14 10:01:39,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:01:39,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390611841] [2022-12-14 10:01:39,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:01:39,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:01:39,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:01:39,654 INFO L134 CoverageAnalysis]: Checked inductivity of 878 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 878 trivial. 0 not checked. [2022-12-14 10:01:39,654 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:01:39,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390611841] [2022-12-14 10:01:39,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390611841] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:01:39,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:01:39,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:01:39,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944439095] [2022-12-14 10:01:39,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:01:39,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:01:39,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:01:39,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:01:39,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:01:39,657 INFO L87 Difference]: Start difference. First operand 5021 states and 7038 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 10:01:40,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:01:40,818 INFO L93 Difference]: Finished difference Result 12687 states and 17795 transitions. [2022-12-14 10:01:40,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:01:40,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 239 [2022-12-14 10:01:40,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:01:40,847 INFO L225 Difference]: With dead ends: 12687 [2022-12-14 10:01:40,847 INFO L226 Difference]: Without dead ends: 7697 [2022-12-14 10:01:40,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:01:40,863 INFO L413 NwaCegarLoop]: 1567 mSDtfsCounter, 1283 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 2815 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-12-14 10:01:40,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 2815 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-12-14 10:01:40,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7697 states. [2022-12-14 10:01:41,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7697 to 7683. [2022-12-14 10:01:41,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7683 states, 4716 states have (on average 1.3127650551314674) internal successors, (6191), 4846 states have internal predecessors, (6191), 2282 states have call successors, (2282), 684 states have call predecessors, (2282), 684 states have return successors, (2282), 2210 states have call predecessors, (2282), 2282 states have call successors, (2282) [2022-12-14 10:01:41,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7683 states to 7683 states and 10755 transitions. [2022-12-14 10:01:41,126 INFO L78 Accepts]: Start accepts. Automaton has 7683 states and 10755 transitions. Word has length 239 [2022-12-14 10:01:41,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:01:41,126 INFO L495 AbstractCegarLoop]: Abstraction has 7683 states and 10755 transitions. [2022-12-14 10:01:41,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-12-14 10:01:41,127 INFO L276 IsEmpty]: Start isEmpty. Operand 7683 states and 10755 transitions. [2022-12-14 10:01:41,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-12-14 10:01:41,130 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:01:41,130 INFO L195 NwaCegarLoop]: trace histogram [20, 15, 15, 15, 15, 15, 15, 4, 4, 3, 3, 3, 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] [2022-12-14 10:01:41,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 10:01:41,131 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:01:41,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:01:41,131 INFO L85 PathProgramCache]: Analyzing trace with hash 424180812, now seen corresponding path program 1 times [2022-12-14 10:01:41,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:01:41,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699579109] [2022-12-14 10:01:41,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:01:41,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:01:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:01:41,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1044 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1037 trivial. 0 not checked. [2022-12-14 10:01:41,335 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:01:41,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699579109] [2022-12-14 10:01:41,335 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699579109] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:01:41,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:01:41,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:01:41,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086324888] [2022-12-14 10:01:41,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:01:41,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:01:41,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:01:41,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:01:41,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:01:41,337 INFO L87 Difference]: Start difference. First operand 7683 states and 10755 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-12-14 10:01:42,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:01:42,806 INFO L93 Difference]: Finished difference Result 18123 states and 25340 transitions. [2022-12-14 10:01:42,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:01:42,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 240 [2022-12-14 10:01:42,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:01:42,842 INFO L225 Difference]: With dead ends: 18123 [2022-12-14 10:01:42,842 INFO L226 Difference]: Without dead ends: 10515 [2022-12-14 10:01:42,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:01:42,863 INFO L413 NwaCegarLoop]: 2268 mSDtfsCounter, 1190 mSDsluCounter, 1221 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1190 SdHoareTripleChecker+Valid, 3489 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:01:42,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1190 Valid, 3489 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-14 10:01:42,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10515 states. [2022-12-14 10:01:43,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10515 to 10501. [2022-12-14 10:01:43,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10501 states, 6440 states have (on average 1.310248447204969) internal successors, (8438), 6634 states have internal predecessors, (8438), 3103 states have call successors, (3103), 957 states have call predecessors, (3103), 957 states have return successors, (3103), 2992 states have call predecessors, (3103), 3103 states have call successors, (3103) [2022-12-14 10:01:43,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10501 states to 10501 states and 14644 transitions. [2022-12-14 10:01:43,217 INFO L78 Accepts]: Start accepts. Automaton has 10501 states and 14644 transitions. Word has length 240 [2022-12-14 10:01:43,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:01:43,217 INFO L495 AbstractCegarLoop]: Abstraction has 10501 states and 14644 transitions. [2022-12-14 10:01:43,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-12-14 10:01:43,217 INFO L276 IsEmpty]: Start isEmpty. Operand 10501 states and 14644 transitions. [2022-12-14 10:01:43,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-12-14 10:01:43,222 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:01:43,223 INFO L195 NwaCegarLoop]: trace histogram [20, 15, 15, 15, 15, 15, 15, 5, 5, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:01:43,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 10:01:43,223 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:01:43,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:01:43,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1207707207, now seen corresponding path program 1 times [2022-12-14 10:01:43,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:01:43,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991126767] [2022-12-14 10:01:43,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:01:43,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:01:43,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:01:43,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1053 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1043 trivial. 0 not checked. [2022-12-14 10:01:43,443 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:01:43,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991126767] [2022-12-14 10:01:43,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991126767] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:01:43,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:01:43,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:01:43,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819162324] [2022-12-14 10:01:43,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:01:43,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:01:43,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:01:43,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:01:43,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:01:43,445 INFO L87 Difference]: Start difference. First operand 10501 states and 14644 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-12-14 10:01:45,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:01:45,096 INFO L93 Difference]: Finished difference Result 24989 states and 34821 transitions. [2022-12-14 10:01:45,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:01:45,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 253 [2022-12-14 10:01:45,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:01:45,147 INFO L225 Difference]: With dead ends: 24989 [2022-12-14 10:01:45,147 INFO L226 Difference]: Without dead ends: 14563 [2022-12-14 10:01:45,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:01:45,176 INFO L413 NwaCegarLoop]: 2161 mSDtfsCounter, 1338 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1338 SdHoareTripleChecker+Valid, 3283 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:01:45,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1338 Valid, 3283 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 10:01:45,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14563 states. [2022-12-14 10:01:45,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14563 to 14549. [2022-12-14 10:01:45,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14549 states, 8865 states have (on average 1.3037789058093627) internal successors, (11558), 9145 states have internal predecessors, (11558), 4318 states have call successors, (4318), 1365 states have call predecessors, (4318), 1365 states have return successors, (4318), 4160 states have call predecessors, (4318), 4318 states have call successors, (4318) [2022-12-14 10:01:45,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14549 states to 14549 states and 20194 transitions. [2022-12-14 10:01:45,634 INFO L78 Accepts]: Start accepts. Automaton has 14549 states and 20194 transitions. Word has length 253 [2022-12-14 10:01:45,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:01:45,635 INFO L495 AbstractCegarLoop]: Abstraction has 14549 states and 20194 transitions. [2022-12-14 10:01:45,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-12-14 10:01:45,635 INFO L276 IsEmpty]: Start isEmpty. Operand 14549 states and 20194 transitions. [2022-12-14 10:01:45,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-12-14 10:01:45,639 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:01:45,640 INFO L195 NwaCegarLoop]: trace histogram [22, 15, 15, 15, 15, 15, 15, 4, 4, 4, 4, 4, 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] [2022-12-14 10:01:45,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-14 10:01:45,640 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:01:45,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:01:45,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1951023462, now seen corresponding path program 1 times [2022-12-14 10:01:45,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:01:45,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054378618] [2022-12-14 10:01:45,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:01:45,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:01:45,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:01:45,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1141 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1126 trivial. 0 not checked. [2022-12-14 10:01:45,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:01:45,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054378618] [2022-12-14 10:01:45,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054378618] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:01:45,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:01:45,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:01:45,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162625554] [2022-12-14 10:01:45,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:01:45,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:01:45,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:01:45,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:01:45,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:01:45,925 INFO L87 Difference]: Start difference. First operand 14549 states and 20194 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-12-14 10:01:48,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:01:48,849 INFO L93 Difference]: Finished difference Result 33217 states and 46026 transitions. [2022-12-14 10:01:48,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:01:48,850 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 256 [2022-12-14 10:01:48,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:01:48,916 INFO L225 Difference]: With dead ends: 33217 [2022-12-14 10:01:48,916 INFO L226 Difference]: Without dead ends: 18743 [2022-12-14 10:01:48,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:01:48,956 INFO L413 NwaCegarLoop]: 2268 mSDtfsCounter, 1274 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 1422 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1274 SdHoareTripleChecker+Valid, 3952 SdHoareTripleChecker+Invalid, 1440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:01:48,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1274 Valid, 3952 Invalid, 1440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1422 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 10:01:48,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18743 states. [2022-12-14 10:01:49,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18743 to 18725. [2022-12-14 10:01:49,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18725 states, 11396 states have (on average 1.3003685503685503) internal successors, (14819), 11770 states have internal predecessors, (14819), 5526 states have call successors, (5526), 1802 states have call predecessors, (5526), 1802 states have return successors, (5526), 5312 states have call predecessors, (5526), 5526 states have call successors, (5526) [2022-12-14 10:01:49,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18725 states to 18725 states and 25871 transitions. [2022-12-14 10:01:49,622 INFO L78 Accepts]: Start accepts. Automaton has 18725 states and 25871 transitions. Word has length 256 [2022-12-14 10:01:49,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:01:49,622 INFO L495 AbstractCegarLoop]: Abstraction has 18725 states and 25871 transitions. [2022-12-14 10:01:49,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-12-14 10:01:49,623 INFO L276 IsEmpty]: Start isEmpty. Operand 18725 states and 25871 transitions. [2022-12-14 10:01:49,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-12-14 10:01:49,629 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:01:49,629 INFO L195 NwaCegarLoop]: trace histogram [24, 15, 15, 15, 15, 15, 15, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 10:01:49,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 10:01:49,630 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:01:49,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:01:49,630 INFO L85 PathProgramCache]: Analyzing trace with hash -2079526746, now seen corresponding path program 1 times [2022-12-14 10:01:49,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:01:49,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435018655] [2022-12-14 10:01:49,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:01:49,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:01:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:01:49,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1285 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 1258 trivial. 0 not checked. [2022-12-14 10:01:49,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:01:49,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435018655] [2022-12-14 10:01:49,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435018655] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:01:49,875 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:01:49,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:01:49,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784595024] [2022-12-14 10:01:49,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:01:49,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:01:49,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:01:49,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:01:49,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:01:49,877 INFO L87 Difference]: Start difference. First operand 18725 states and 25871 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-12-14 10:01:52,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:01:52,800 INFO L93 Difference]: Finished difference Result 47209 states and 66296 transitions. [2022-12-14 10:01:52,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:01:52,801 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 293 [2022-12-14 10:01:52,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:01:52,901 INFO L225 Difference]: With dead ends: 47209 [2022-12-14 10:01:52,901 INFO L226 Difference]: Without dead ends: 28559 [2022-12-14 10:01:52,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:01:52,956 INFO L413 NwaCegarLoop]: 2459 mSDtfsCounter, 1793 mSDsluCounter, 3769 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1932 SdHoareTripleChecker+Valid, 6228 SdHoareTripleChecker+Invalid, 1512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:01:52,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1932 Valid, 6228 Invalid, 1512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-14 10:01:52,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28559 states. [2022-12-14 10:01:53,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28559 to 22781. [2022-12-14 10:01:53,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22781 states, 13859 states have (on average 1.2990836279673859) internal successors, (18004), 14327 states have internal predecessors, (18004), 6710 states have call successors, (6710), 2211 states have call predecessors, (6710), 2211 states have return successors, (6710), 6440 states have call predecessors, (6710), 6710 states have call successors, (6710) [2022-12-14 10:01:53,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22781 states to 22781 states and 31424 transitions. [2022-12-14 10:01:53,824 INFO L78 Accepts]: Start accepts. Automaton has 22781 states and 31424 transitions. Word has length 293 [2022-12-14 10:01:53,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:01:53,825 INFO L495 AbstractCegarLoop]: Abstraction has 22781 states and 31424 transitions. [2022-12-14 10:01:53,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-12-14 10:01:53,825 INFO L276 IsEmpty]: Start isEmpty. Operand 22781 states and 31424 transitions. [2022-12-14 10:01:53,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-12-14 10:01:53,833 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:01:53,833 INFO L195 NwaCegarLoop]: trace histogram [24, 15, 15, 15, 15, 15, 15, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 10:01:53,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 10:01:53,833 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:01:53,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:01:53,833 INFO L85 PathProgramCache]: Analyzing trace with hash 1574722435, now seen corresponding path program 1 times [2022-12-14 10:01:53,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:01:53,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006549610] [2022-12-14 10:01:53,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:01:53,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:01:53,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:01:54,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1285 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 1258 trivial. 0 not checked. [2022-12-14 10:01:54,155 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:01:54,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006549610] [2022-12-14 10:01:54,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006549610] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:01:54,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:01:54,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:01:54,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758781730] [2022-12-14 10:01:54,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:01:54,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:01:54,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:01:54,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:01:54,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:01:54,157 INFO L87 Difference]: Start difference. First operand 22781 states and 31424 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-12-14 10:01:57,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:01:57,404 INFO L93 Difference]: Finished difference Result 55361 states and 77476 transitions. [2022-12-14 10:01:57,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:01:57,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 294 [2022-12-14 10:01:57,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:01:57,509 INFO L225 Difference]: With dead ends: 55361 [2022-12-14 10:01:57,509 INFO L226 Difference]: Without dead ends: 32655 [2022-12-14 10:01:57,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:01:57,570 INFO L413 NwaCegarLoop]: 2439 mSDtfsCounter, 1824 mSDsluCounter, 3735 mSDsCounter, 0 mSdLazyCounter, 1330 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1961 SdHoareTripleChecker+Valid, 6174 SdHoareTripleChecker+Invalid, 1521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 1330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:01:57,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1961 Valid, 6174 Invalid, 1521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 1330 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-12-14 10:01:57,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32655 states. [2022-12-14 10:01:58,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32655 to 26877. [2022-12-14 10:01:58,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26877 states, 16360 states have (on average 1.2977383863080685) internal successors, (21231), 16922 states have internal predecessors, (21231), 7894 states have call successors, (7894), 2622 states have call predecessors, (7894), 2622 states have return successors, (7894), 7568 states have call predecessors, (7894), 7894 states have call successors, (7894) [2022-12-14 10:01:58,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26877 states to 26877 states and 37019 transitions. [2022-12-14 10:01:58,527 INFO L78 Accepts]: Start accepts. Automaton has 26877 states and 37019 transitions. Word has length 294 [2022-12-14 10:01:58,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:01:58,527 INFO L495 AbstractCegarLoop]: Abstraction has 26877 states and 37019 transitions. [2022-12-14 10:01:58,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-12-14 10:01:58,528 INFO L276 IsEmpty]: Start isEmpty. Operand 26877 states and 37019 transitions. [2022-12-14 10:01:58,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-12-14 10:01:58,535 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:01:58,535 INFO L195 NwaCegarLoop]: trace histogram [20, 15, 15, 15, 15, 15, 15, 5, 5, 3, 3, 3, 3, 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] [2022-12-14 10:01:58,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 10:01:58,535 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:01:58,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:01:58,535 INFO L85 PathProgramCache]: Analyzing trace with hash 383285519, now seen corresponding path program 1 times [2022-12-14 10:01:58,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:01:58,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109138086] [2022-12-14 10:01:58,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:01:58,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:01:58,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:01:58,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1063 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1056 trivial. 0 not checked. [2022-12-14 10:01:58,725 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:01:58,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109138086] [2022-12-14 10:01:58,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109138086] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:01:58,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:01:58,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:01:58,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863969475] [2022-12-14 10:01:58,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:01:58,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:01:58,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:01:58,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:01:58,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:01:58,727 INFO L87 Difference]: Start difference. First operand 26877 states and 37019 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-12-14 10:02:01,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:02:01,254 INFO L93 Difference]: Finished difference Result 63920 states and 88030 transitions. [2022-12-14 10:02:01,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:02:01,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 299 [2022-12-14 10:02:01,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:02:01,357 INFO L225 Difference]: With dead ends: 63920 [2022-12-14 10:02:01,357 INFO L226 Difference]: Without dead ends: 37118 [2022-12-14 10:02:01,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:02:01,420 INFO L413 NwaCegarLoop]: 2358 mSDtfsCounter, 1283 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1283 SdHoareTripleChecker+Valid, 3604 SdHoareTripleChecker+Invalid, 699 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:02:01,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1283 Valid, 3604 Invalid, 699 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 10:02:01,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37118 states. [2022-12-14 10:02:02,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37118 to 37068. [2022-12-14 10:02:02,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37068 states, 22564 states have (on average 1.293210423683744) internal successors, (29180), 23372 states have internal predecessors, (29180), 10891 states have call successors, (10891), 3612 states have call predecessors, (10891), 3612 states have return successors, (10891), 10405 states have call predecessors, (10891), 10891 states have call successors, (10891) [2022-12-14 10:02:03,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37068 states to 37068 states and 50962 transitions. [2022-12-14 10:02:03,006 INFO L78 Accepts]: Start accepts. Automaton has 37068 states and 50962 transitions. Word has length 299 [2022-12-14 10:02:03,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:02:03,007 INFO L495 AbstractCegarLoop]: Abstraction has 37068 states and 50962 transitions. [2022-12-14 10:02:03,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (41), 2 states have call predecessors, (41), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2022-12-14 10:02:03,007 INFO L276 IsEmpty]: Start isEmpty. Operand 37068 states and 50962 transitions. [2022-12-14 10:02:03,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-12-14 10:02:03,015 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:02:03,015 INFO L195 NwaCegarLoop]: trace histogram [24, 15, 15, 15, 15, 15, 15, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 10:02:03,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 10:02:03,015 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:02:03,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:02:03,015 INFO L85 PathProgramCache]: Analyzing trace with hash -2061720211, now seen corresponding path program 1 times [2022-12-14 10:02:03,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:02:03,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235453035] [2022-12-14 10:02:03,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:02:03,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:02:03,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:02:03,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1285 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 1257 trivial. 0 not checked. [2022-12-14 10:02:03,396 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:02:03,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235453035] [2022-12-14 10:02:03,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235453035] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:02:03,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:02:03,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 10:02:03,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105741921] [2022-12-14 10:02:03,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:02:03,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:02:03,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:02:03,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:02:03,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:02:03,398 INFO L87 Difference]: Start difference. First operand 37068 states and 50962 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-14 10:02:06,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:02:06,883 INFO L93 Difference]: Finished difference Result 108696 states and 149472 transitions. [2022-12-14 10:02:06,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:02:06,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 295 [2022-12-14 10:02:06,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:02:07,098 INFO L225 Difference]: With dead ends: 108696 [2022-12-14 10:02:07,098 INFO L226 Difference]: Without dead ends: 71703 [2022-12-14 10:02:07,199 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 [2022-12-14 10:02:07,199 INFO L413 NwaCegarLoop]: 2154 mSDtfsCounter, 1409 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1409 SdHoareTripleChecker+Valid, 3404 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:02:07,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1409 Valid, 3404 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-12-14 10:02:07,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71703 states. [2022-12-14 10:02:09,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71703 to 71701. [2022-12-14 10:02:09,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71701 states, 43934 states have (on average 1.2912323029999544) internal successors, (56729), 45316 states have internal predecessors, (56729), 20758 states have call successors, (20758), 7008 states have call predecessors, (20758), 7008 states have return successors, (20758), 20020 states have call predecessors, (20758), 20758 states have call successors, (20758) [2022-12-14 10:02:10,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71701 states to 71701 states and 98245 transitions. [2022-12-14 10:02:10,186 INFO L78 Accepts]: Start accepts. Automaton has 71701 states and 98245 transitions. Word has length 295 [2022-12-14 10:02:10,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:02:10,187 INFO L495 AbstractCegarLoop]: Abstraction has 71701 states and 98245 transitions. [2022-12-14 10:02:10,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-12-14 10:02:10,187 INFO L276 IsEmpty]: Start isEmpty. Operand 71701 states and 98245 transitions. [2022-12-14 10:02:10,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-12-14 10:02:10,195 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:02:10,195 INFO L195 NwaCegarLoop]: trace histogram [26, 15, 15, 15, 15, 15, 15, 7, 7, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:02:10,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 10:02:10,195 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:02:10,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:02:10,196 INFO L85 PathProgramCache]: Analyzing trace with hash -221616319, now seen corresponding path program 1 times [2022-12-14 10:02:10,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:02:10,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979679623] [2022-12-14 10:02:10,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:02:10,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:02:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:02:12,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1431 trivial. 0 not checked. [2022-12-14 10:02:12,770 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:02:12,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979679623] [2022-12-14 10:02:12,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979679623] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:02:12,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:02:12,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 10:02:12,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279407982] [2022-12-14 10:02:12,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:02:12,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 10:02:12,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:02:12,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 10:02:12,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 10:02:12,771 INFO L87 Difference]: Start difference. First operand 71701 states and 98245 transitions. Second operand has 6 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 10:02:22,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:02:22,682 INFO L93 Difference]: Finished difference Result 119519 states and 164204 transitions. [2022-12-14 10:02:22,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 10:02:22,684 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) Word has length 316 [2022-12-14 10:02:22,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:02:23,080 INFO L225 Difference]: With dead ends: 119519 [2022-12-14 10:02:23,080 INFO L226 Difference]: Without dead ends: 119517 [2022-12-14 10:02:23,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-12-14 10:02:23,128 INFO L413 NwaCegarLoop]: 1559 mSDtfsCounter, 1048 mSDsluCounter, 5350 mSDsCounter, 0 mSdLazyCounter, 1812 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 6909 SdHoareTripleChecker+Invalid, 1819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 10:02:23,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1056 Valid, 6909 Invalid, 1819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1812 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 10:02:23,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119517 states. [2022-12-14 10:02:29,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119517 to 118861. [2022-12-14 10:02:29,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118861 states, 73448 states have (on average 1.2813010565297898) internal successors, (94109), 75772 states have internal predecessors, (94109), 33720 states have call successors, (33720), 12060 states have call predecessors, (33720), 11692 states have return successors, (34854), 31928 states have call predecessors, (34854), 33720 states have call successors, (34854) [2022-12-14 10:02:30,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118861 states to 118861 states and 162683 transitions. [2022-12-14 10:02:30,371 INFO L78 Accepts]: Start accepts. Automaton has 118861 states and 162683 transitions. Word has length 316 [2022-12-14 10:02:30,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:02:30,372 INFO L495 AbstractCegarLoop]: Abstraction has 118861 states and 162683 transitions. [2022-12-14 10:02:30,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (33), 3 states have call predecessors, (33), 2 states have call successors, (33) [2022-12-14 10:02:30,372 INFO L276 IsEmpty]: Start isEmpty. Operand 118861 states and 162683 transitions. [2022-12-14 10:02:30,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2022-12-14 10:02:30,386 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:02:30,386 INFO L195 NwaCegarLoop]: trace histogram [24, 15, 15, 15, 15, 15, 15, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:02:30,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 10:02:30,386 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:02:30,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:02:30,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1437713876, now seen corresponding path program 1 times [2022-12-14 10:02:30,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:02:30,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702713986] [2022-12-14 10:02:30,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:02:30,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:02:30,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:02:30,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1290 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 1273 trivial. 0 not checked. [2022-12-14 10:02:30,638 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:02:30,638 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702713986] [2022-12-14 10:02:30,638 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702713986] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:02:30,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:02:30,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:02:30,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213497165] [2022-12-14 10:02:30,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:02:30,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:02:30,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:02:30,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:02:30,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:02:30,640 INFO L87 Difference]: Start difference. First operand 118861 states and 162683 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-12-14 10:02:41,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:02:41,443 INFO L93 Difference]: Finished difference Result 270529 states and 370223 transitions. [2022-12-14 10:02:41,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:02:41,444 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 335 [2022-12-14 10:02:41,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:02:41,964 INFO L225 Difference]: With dead ends: 270529 [2022-12-14 10:02:41,965 INFO L226 Difference]: Without dead ends: 151743 [2022-12-14 10:02:42,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:02:42,256 INFO L413 NwaCegarLoop]: 2358 mSDtfsCounter, 1323 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 1452 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1323 SdHoareTripleChecker+Valid, 4120 SdHoareTripleChecker+Invalid, 1462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:02:42,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1323 Valid, 4120 Invalid, 1462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1452 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 10:02:42,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151743 states. [2022-12-14 10:02:50,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151743 to 151645. [2022-12-14 10:02:51,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151645 states, 93870 states have (on average 1.2778843080856503) internal successors, (119955), 96870 states have internal predecessors, (119955), 42844 states have call successors, (42844), 15394 states have call predecessors, (42844), 14930 states have return successors, (44260), 40508 states have call predecessors, (44260), 42844 states have call successors, (44260) [2022-12-14 10:02:51,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151645 states to 151645 states and 207059 transitions. [2022-12-14 10:02:51,708 INFO L78 Accepts]: Start accepts. Automaton has 151645 states and 207059 transitions. Word has length 335 [2022-12-14 10:02:51,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:02:51,708 INFO L495 AbstractCegarLoop]: Abstraction has 151645 states and 207059 transitions. [2022-12-14 10:02:51,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-12-14 10:02:51,709 INFO L276 IsEmpty]: Start isEmpty. Operand 151645 states and 207059 transitions. [2022-12-14 10:02:51,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2022-12-14 10:02:51,739 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:02:51,740 INFO L195 NwaCegarLoop]: trace histogram [26, 15, 15, 15, 15, 15, 15, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 10:02:51,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 10:02:51,740 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:02:51,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:02:51,740 INFO L85 PathProgramCache]: Analyzing trace with hash -357267634, now seen corresponding path program 1 times [2022-12-14 10:02:51,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:02:51,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164085947] [2022-12-14 10:02:51,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:02:51,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:02:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:02:52,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 1388 trivial. 0 not checked. [2022-12-14 10:02:52,035 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:02:52,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164085947] [2022-12-14 10:02:52,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164085947] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:02:52,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:02:52,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:02:52,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644690119] [2022-12-14 10:02:52,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:02:52,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:02:52,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:02:52,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:02:52,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:02:52,038 INFO L87 Difference]: Start difference. First operand 151645 states and 207059 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-14 10:03:08,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:03:08,433 INFO L93 Difference]: Finished difference Result 386417 states and 536863 transitions. [2022-12-14 10:03:08,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:03:08,434 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 354 [2022-12-14 10:03:08,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:03:09,432 INFO L225 Difference]: With dead ends: 386417 [2022-12-14 10:03:09,432 INFO L226 Difference]: Without dead ends: 234847 [2022-12-14 10:03:09,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:03:09,819 INFO L413 NwaCegarLoop]: 2534 mSDtfsCounter, 1875 mSDsluCounter, 3858 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2015 SdHoareTripleChecker+Valid, 6392 SdHoareTripleChecker+Invalid, 1543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 10:03:09,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2015 Valid, 6392 Invalid, 1543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 10:03:09,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234847 states. [2022-12-14 10:03:22,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234847 to 184045. [2022-12-14 10:03:22,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184045 states, 114004 states have (on average 1.2755429634047928) internal successors, (145417), 117680 states have internal predecessors, (145417), 51968 states have call successors, (51968), 18632 states have call predecessors, (51968), 18072 states have return successors, (53666), 49088 states have call predecessors, (53666), 51968 states have call successors, (53666) [2022-12-14 10:03:23,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184045 states to 184045 states and 251051 transitions. [2022-12-14 10:03:23,423 INFO L78 Accepts]: Start accepts. Automaton has 184045 states and 251051 transitions. Word has length 354 [2022-12-14 10:03:23,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:03:23,423 INFO L495 AbstractCegarLoop]: Abstraction has 184045 states and 251051 transitions. [2022-12-14 10:03:23,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-14 10:03:23,423 INFO L276 IsEmpty]: Start isEmpty. Operand 184045 states and 251051 transitions. [2022-12-14 10:03:23,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2022-12-14 10:03:23,445 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:03:23,445 INFO L195 NwaCegarLoop]: trace histogram [26, 15, 15, 15, 15, 15, 15, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 10:03:23,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-14 10:03:23,445 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:03:23,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:03:23,446 INFO L85 PathProgramCache]: Analyzing trace with hash 462387123, now seen corresponding path program 1 times [2022-12-14 10:03:23,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:03:23,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685398197] [2022-12-14 10:03:23,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:03:23,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:03:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:03:23,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 1388 trivial. 0 not checked. [2022-12-14 10:03:23,653 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:03:23,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685398197] [2022-12-14 10:03:23,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685398197] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:03:23,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:03:23,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:03:23,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292590440] [2022-12-14 10:03:23,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:03:23,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:03:23,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:03:23,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:03:23,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:03:23,656 INFO L87 Difference]: Start difference. First operand 184045 states and 251051 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-14 10:03:43,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:03:43,528 INFO L93 Difference]: Finished difference Result 452121 states and 626255 transitions. [2022-12-14 10:03:43,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:03:43,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 355 [2022-12-14 10:03:43,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:03:44,549 INFO L225 Difference]: With dead ends: 452121 [2022-12-14 10:03:44,549 INFO L226 Difference]: Without dead ends: 268151 [2022-12-14 10:03:45,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:03:45,200 INFO L413 NwaCegarLoop]: 2468 mSDtfsCounter, 1925 mSDsluCounter, 3830 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2064 SdHoareTripleChecker+Valid, 6298 SdHoareTripleChecker+Invalid, 1548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:03:45,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2064 Valid, 6298 Invalid, 1548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 1313 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 10:03:45,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268151 states. [2022-12-14 10:04:00,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268151 to 217349. [2022-12-14 10:04:00,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217349 states, 134802 states have (on average 1.2728520348362784) internal successors, (171583), 139154 states have internal predecessors, (171583), 61252 states have call successors, (61252), 21950 states have call predecessors, (61252), 21294 states have return successors, (63232), 57828 states have call predecessors, (63232), 61252 states have call successors, (63232) [2022-12-14 10:04:01,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217349 states to 217349 states and 296067 transitions. [2022-12-14 10:04:01,541 INFO L78 Accepts]: Start accepts. Automaton has 217349 states and 296067 transitions. Word has length 355 [2022-12-14 10:04:01,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:04:01,542 INFO L495 AbstractCegarLoop]: Abstraction has 217349 states and 296067 transitions. [2022-12-14 10:04:01,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-14 10:04:01,542 INFO L276 IsEmpty]: Start isEmpty. Operand 217349 states and 296067 transitions. [2022-12-14 10:04:01,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2022-12-14 10:04:01,569 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:04:01,569 INFO L195 NwaCegarLoop]: trace histogram [26, 15, 15, 15, 15, 15, 15, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 10:04:01,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-14 10:04:01,569 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:04:01,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:04:01,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1118399655, now seen corresponding path program 1 times [2022-12-14 10:04:01,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:04:01,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222508208] [2022-12-14 10:04:01,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:04:01,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:04:01,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:04:01,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 1388 trivial. 0 not checked. [2022-12-14 10:04:01,790 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:04:01,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222508208] [2022-12-14 10:04:01,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222508208] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:04:01,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:04:01,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:04:01,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517126642] [2022-12-14 10:04:01,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:04:01,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:04:01,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:04:01,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:04:01,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:04:01,792 INFO L87 Difference]: Start difference. First operand 217349 states and 296067 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-14 10:04:26,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:04:26,272 INFO L93 Difference]: Finished difference Result 518305 states and 715839 transitions. [2022-12-14 10:04:26,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:04:26,273 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 356 [2022-12-14 10:04:26,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:04:27,429 INFO L225 Difference]: With dead ends: 518305 [2022-12-14 10:04:27,429 INFO L226 Difference]: Without dead ends: 301031 [2022-12-14 10:04:28,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:04:28,138 INFO L413 NwaCegarLoop]: 2477 mSDtfsCounter, 1921 mSDsluCounter, 3834 mSDsCounter, 0 mSdLazyCounter, 1311 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2060 SdHoareTripleChecker+Valid, 6311 SdHoareTripleChecker+Invalid, 1547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 1311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:04:28,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2060 Valid, 6311 Invalid, 1547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [236 Valid, 1311 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 10:04:28,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301031 states. [2022-12-14 10:04:46,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301031 to 250229. [2022-12-14 10:04:46,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250229 states, 155416 states have (on average 1.2709437895712152) internal successors, (197525), 160444 states have internal predecessors, (197525), 70376 states have call successors, (70376), 25188 states have call predecessors, (70376), 24436 states have return successors, (72638), 66408 states have call predecessors, (72638), 70376 states have call successors, (72638) [2022-12-14 10:04:47,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250229 states to 250229 states and 340539 transitions. [2022-12-14 10:04:47,508 INFO L78 Accepts]: Start accepts. Automaton has 250229 states and 340539 transitions. Word has length 356 [2022-12-14 10:04:47,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:04:47,509 INFO L495 AbstractCegarLoop]: Abstraction has 250229 states and 340539 transitions. [2022-12-14 10:04:47,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-14 10:04:47,509 INFO L276 IsEmpty]: Start isEmpty. Operand 250229 states and 340539 transitions. [2022-12-14 10:04:47,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2022-12-14 10:04:47,539 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:04:47,539 INFO L195 NwaCegarLoop]: trace histogram [26, 15, 15, 15, 15, 15, 15, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 10:04:47,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 10:04:47,540 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:04:47,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:04:47,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1306313278, now seen corresponding path program 1 times [2022-12-14 10:04:47,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:04:47,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486014324] [2022-12-14 10:04:47,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:04:47,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:04:47,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:04:47,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 1388 trivial. 0 not checked. [2022-12-14 10:04:47,786 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:04:47,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486014324] [2022-12-14 10:04:47,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486014324] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:04:47,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:04:47,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:04:47,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707692492] [2022-12-14 10:04:47,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:04:47,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:04:47,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:04:47,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:04:47,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:04:47,788 INFO L87 Difference]: Start difference. First operand 250229 states and 340539 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-14 10:05:17,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:05:17,298 INFO L93 Difference]: Finished difference Result 584161 states and 804975 transitions. [2022-12-14 10:05:17,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:05:17,299 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 357 [2022-12-14 10:05:17,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:05:18,715 INFO L225 Difference]: With dead ends: 584161 [2022-12-14 10:05:18,715 INFO L226 Difference]: Without dead ends: 334007 [2022-12-14 10:05:19,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:05:19,418 INFO L413 NwaCegarLoop]: 2530 mSDtfsCounter, 1881 mSDsluCounter, 3861 mSDsCounter, 0 mSdLazyCounter, 1323 mSolverCounterSat, 234 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2021 SdHoareTripleChecker+Valid, 6391 SdHoareTripleChecker+Invalid, 1557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 1323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-12-14 10:05:19,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2021 Valid, 6391 Invalid, 1557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 1323 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-12-14 10:05:19,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334007 states. [2022-12-14 10:05:40,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334007 to 283205. [2022-12-14 10:05:40,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283205 states, 176126 states have (on average 1.2693355892940281) internal successors, (223563), 181830 states have internal predecessors, (223563), 79500 states have call successors, (79500), 28426 states have call predecessors, (79500), 27578 states have return successors, (82044), 74988 states have call predecessors, (82044), 79500 states have call successors, (82044) [2022-12-14 10:05:41,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283205 states to 283205 states and 385107 transitions. [2022-12-14 10:05:41,787 INFO L78 Accepts]: Start accepts. Automaton has 283205 states and 385107 transitions. Word has length 357 [2022-12-14 10:05:41,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:05:41,788 INFO L495 AbstractCegarLoop]: Abstraction has 283205 states and 385107 transitions. [2022-12-14 10:05:41,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-14 10:05:41,788 INFO L276 IsEmpty]: Start isEmpty. Operand 283205 states and 385107 transitions. [2022-12-14 10:05:41,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2022-12-14 10:05:41,822 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:05:41,822 INFO L195 NwaCegarLoop]: trace histogram [26, 15, 15, 15, 15, 15, 15, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 10:05:41,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 10:05:41,822 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:05:41,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:05:41,823 INFO L85 PathProgramCache]: Analyzing trace with hash -804988583, now seen corresponding path program 1 times [2022-12-14 10:05:41,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:05:41,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783893597] [2022-12-14 10:05:41,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:05:41,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:05:41,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:05:42,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 1388 trivial. 0 not checked. [2022-12-14 10:05:42,066 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:05:42,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783893597] [2022-12-14 10:05:42,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783893597] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:05:42,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:05:42,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:05:42,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749066285] [2022-12-14 10:05:42,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:05:42,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:05:42,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:05:42,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:05:42,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:05:42,067 INFO L87 Difference]: Start difference. First operand 283205 states and 385107 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-14 10:06:15,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:06:15,190 INFO L93 Difference]: Finished difference Result 650209 states and 894303 transitions. [2022-12-14 10:06:15,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 10:06:15,191 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), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 358 [2022-12-14 10:06:15,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:06:16,656 INFO L225 Difference]: With dead ends: 650209 [2022-12-14 10:06:16,656 INFO L226 Difference]: Without dead ends: 367079 [2022-12-14 10:06:17,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 10:06:17,653 INFO L413 NwaCegarLoop]: 2527 mSDtfsCounter, 1887 mSDsluCounter, 3857 mSDsCounter, 0 mSdLazyCounter, 1320 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2026 SdHoareTripleChecker+Valid, 6384 SdHoareTripleChecker+Invalid, 1558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 1320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:06:17,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2026 Valid, 6384 Invalid, 1558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 1320 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 10:06:17,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367079 states. [2022-12-14 10:06:42,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367079 to 316277. [2022-12-14 10:06:42,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316277 states, 196932 states have (on average 1.2679351248146569) internal successors, (249697), 203312 states have internal predecessors, (249697), 88624 states have call successors, (88624), 31664 states have call predecessors, (88624), 30720 states have return successors, (91450), 83568 states have call predecessors, (91450), 88624 states have call successors, (91450) [2022-12-14 10:06:44,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316277 states to 316277 states and 429771 transitions. [2022-12-14 10:06:44,297 INFO L78 Accepts]: Start accepts. Automaton has 316277 states and 429771 transitions. Word has length 358 [2022-12-14 10:06:44,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:06:44,297 INFO L495 AbstractCegarLoop]: Abstraction has 316277 states and 429771 transitions. [2022-12-14 10:06:44,298 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), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-12-14 10:06:44,298 INFO L276 IsEmpty]: Start isEmpty. Operand 316277 states and 429771 transitions. [2022-12-14 10:06:44,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2022-12-14 10:06:44,333 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:06:44,333 INFO L195 NwaCegarLoop]: trace histogram [26, 15, 15, 15, 15, 15, 15, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 10:06:44,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-12-14 10:06:44,334 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:06:44,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:06:44,334 INFO L85 PathProgramCache]: Analyzing trace with hash 2095822944, now seen corresponding path program 1 times [2022-12-14 10:06:44,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:06:44,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511377800] [2022-12-14 10:06:44,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:06:44,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:06:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:06:44,603 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 1370 trivial. 0 not checked. [2022-12-14 10:06:44,603 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:06:44,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511377800] [2022-12-14 10:06:44,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511377800] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:06:44,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:06:44,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:06:44,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629649777] [2022-12-14 10:06:44,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:06:44,604 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:06:44,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:06:44,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:06:44,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:06:44,605 INFO L87 Difference]: Start difference. First operand 316277 states and 429771 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-12-14 10:07:21,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:07:21,460 INFO L93 Difference]: Finished difference Result 783393 states and 1064358 transitions. [2022-12-14 10:07:21,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 10:07:21,461 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 359 [2022-12-14 10:07:21,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:07:23,370 INFO L225 Difference]: With dead ends: 783393 [2022-12-14 10:07:23,370 INFO L226 Difference]: Without dead ends: 467191 [2022-12-14 10:07:24,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:07:24,466 INFO L413 NwaCegarLoop]: 2379 mSDtfsCounter, 1406 mSDsluCounter, 3013 mSDsCounter, 0 mSdLazyCounter, 1769 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 5392 SdHoareTripleChecker+Invalid, 1773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-12-14 10:07:24,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1406 Valid, 5392 Invalid, 1773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1769 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-12-14 10:07:24,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467191 states. [2022-12-14 10:07:58,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467191 to 463589. [2022-12-14 10:07:58,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463589 states, 288610 states have (on average 1.268240878694432) internal successors, (366027), 297022 states have internal predecessors, (366027), 129544 states have call successors, (129544), 46850 states have call predecessors, (129544), 45434 states have return successors, (133783), 123118 states have call predecessors, (133783), 129544 states have call successors, (133783) [2022-12-14 10:08:00,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463589 states to 463589 states and 629354 transitions. [2022-12-14 10:08:00,978 INFO L78 Accepts]: Start accepts. Automaton has 463589 states and 629354 transitions. Word has length 359 [2022-12-14 10:08:00,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:08:00,979 INFO L495 AbstractCegarLoop]: Abstraction has 463589 states and 629354 transitions. [2022-12-14 10:08:00,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2022-12-14 10:08:00,979 INFO L276 IsEmpty]: Start isEmpty. Operand 463589 states and 629354 transitions. [2022-12-14 10:08:01,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2022-12-14 10:08:01,026 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:08:01,027 INFO L195 NwaCegarLoop]: trace histogram [27, 15, 15, 15, 15, 15, 15, 8, 8, 7, 7, 7, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-12-14 10:08:01,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 10:08:01,027 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 10:08:01,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:08:01,027 INFO L85 PathProgramCache]: Analyzing trace with hash 2002346867, now seen corresponding path program 1 times [2022-12-14 10:08:01,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:08:01,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808434401] [2022-12-14 10:08:01,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:08:01,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:08:01,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:08:01,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1548 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 1474 trivial. 0 not checked. [2022-12-14 10:08:01,428 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:08:01,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808434401] [2022-12-14 10:08:01,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808434401] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:08:01,429 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:08:01,429 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 10:08:01,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608347623] [2022-12-14 10:08:01,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:08:01,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 10:08:01,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:08:01,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 10:08:01,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 10:08:01,430 INFO L87 Difference]: Start difference. First operand 463589 states and 629354 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41)