./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-kaweth.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-kaweth.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 104510927d9409ade9caf80490257750edc55f0d04f472d0e2cf5426e55ff4e4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:25:46,191 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:25:46,193 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:25:46,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:25:46,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:25:46,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:25:46,241 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:25:46,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:25:46,247 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:25:46,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:25:46,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:25:46,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:25:46,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:25:46,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:25:46,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:25:46,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:25:46,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:25:46,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:25:46,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:25:46,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:25:46,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:25:46,280 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:25:46,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:25:46,283 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:25:46,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:25:46,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:25:46,294 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:25:46,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:25:46,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:25:46,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:25:46,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:25:46,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:25:46,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:25:46,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:25:46,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:25:46,305 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:25:46,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:25:46,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:25:46,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:25:46,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:25:46,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:25:46,310 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 22:25:46,351 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:25:46,351 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:25:46,352 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:25:46,352 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:25:46,353 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:25:46,353 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:25:46,353 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:25:46,354 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:25:46,354 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:25:46,354 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:25:46,355 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:25:46,356 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:25:46,356 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:25:46,356 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:25:46,356 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:25:46,357 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:25:46,357 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:25:46,357 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:25:46,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:25:46,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:25:46,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:25:46,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:25:46,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:25:46,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:25:46,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:25:46,359 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:25:46,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:25:46,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:25:46,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:25:46,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:25:46,361 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:25:46,362 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:25:46,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:25:46,362 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:25:46,362 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:25:46,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:25:46,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:25:46,363 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:25:46,363 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_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 104510927d9409ade9caf80490257750edc55f0d04f472d0e2cf5426e55ff4e4 [2022-11-25 22:25:46,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:25:46,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:25:46,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:25:46,745 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:25:46,745 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:25:46,746 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-kaweth.cil.i [2022-11-25 22:25:49,761 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:25:50,465 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:25:50,465 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-kaweth.cil.i [2022-11-25 22:25:50,527 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/data/241adf0ee/4d224b97623048d2b8bebaf11c5ed22e/FLAGe5f6d5080 [2022-11-25 22:25:50,546 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/data/241adf0ee/4d224b97623048d2b8bebaf11c5ed22e [2022-11-25 22:25:50,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:25:50,551 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:25:50,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:25:50,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:25:50,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:25:50,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:25:50" (1/1) ... [2022-11-25 22:25:50,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f292e39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:50, skipping insertion in model container [2022-11-25 22:25:50,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:25:50" (1/1) ... [2022-11-25 22:25:50,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:25:50,744 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:25:51,459 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:25:51,499 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 22:25:51,509 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-25 22:25:51,519 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 22:25:51,529 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-25 22:25:51,539 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 22:25:51,591 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-25 22:25:51,797 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 22:25:51,799 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 22:25:51,811 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:25:51,815 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:25:51,829 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-25 22:25:52,040 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:52,043 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:52,045 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:25:52,056 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:52,081 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:52,090 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:52,103 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:52,110 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-11-25 22:25:52,111 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:52,112 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:52,148 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-11-25 22:25:52,164 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-11-25 22:25:52,167 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:52,170 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:52,184 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:52,194 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:52,242 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:52,252 WARN L623 FunctionHandler]: Unknown extern function usb_reset_configuration [2022-11-25 22:25:52,253 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 22:25:52,255 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:52,271 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:52,277 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 22:25:52,278 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 22:25:52,287 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:52,294 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 22:25:52,296 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:52,297 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 22:25:52,299 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:52,306 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:52,309 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:52,310 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:52,312 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:52,312 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:52,313 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:52,315 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 22:25:52,315 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 22:25:52,315 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 22:25:52,323 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:52,323 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-11-25 22:25:52,324 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:52,326 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 22:25:52,327 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-25 22:25:52,331 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 22:25:52,332 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 22:25:52,332 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 22:25:52,332 WARN L623 FunctionHandler]: Unknown extern function cancel_delayed_work_sync [2022-11-25 22:25:52,333 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 22:25:52,333 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 22:25:52,338 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-25 22:25:52,349 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:52,358 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 22:25:52,366 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:52,369 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:52,371 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:52,380 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 22:25:52,381 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-11-25 22:25:52,384 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:52,386 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:52,392 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:52,394 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:52,396 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:52,398 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 22:25:52,398 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 22:25:52,400 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:52,400 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:25:52,401 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:25:52,402 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:52,402 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:52,403 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:52,404 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:52,404 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:52,405 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:25:52,405 WARN L623 FunctionHandler]: Unknown extern function free_pages [2022-11-25 22:25:52,406 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:52,407 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:25:52,407 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:25:52,407 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:25:52,408 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:25:52,408 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:25:52,409 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:52,411 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:52,412 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:52,412 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:52,414 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:52,418 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 22:25:52,418 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 22:25:52,419 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 22:25:52,420 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:52,421 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:25:52,423 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:52,423 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 22:25:52,424 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 22:25:52,424 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 22:25:52,425 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 22:25:52,425 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 22:25:52,427 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:25:52,427 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 22:25:52,429 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:52,430 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 22:25:52,430 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 22:25:52,431 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 22:25:52,431 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 22:25:52,431 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 22:25:52,436 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 22:25:52,441 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 22:25:52,442 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 22:25:52,443 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-11-25 22:25:52,444 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-11-25 22:25:52,444 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-25 22:25:52,445 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 22:25:52,446 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 22:25:52,447 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 22:25:52,664 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 22:25:52,665 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 22:25:52,666 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 22:25:52,669 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 22:25:52,673 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-25 22:25:52,682 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 22:25:52,683 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 22:25:52,688 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_usb_register_driver [2022-11-25 22:25:52,692 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 22:25:52,694 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 22:25:52,697 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 22:25:52,698 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 22:25:52,698 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 22:25:52,699 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 22:25:52,702 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 22:25:52,702 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 22:25:52,703 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 22:25:52,703 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 22:25:52,704 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 22:25:52,705 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 22:25:52,763 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 22:25:52,771 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,832 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,836 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,841 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,845 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,861 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,865 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,870 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,874 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,879 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,895 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,900 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,904 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,908 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,912 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,929 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,930 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,931 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,935 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,940 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,956 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,960 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,964 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,969 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,974 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,989 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,994 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:52,998 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,003 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,008 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,025 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,031 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,035 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,039 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,044 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,064 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,074 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,078 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,083 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,087 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,106 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,117 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,123 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,128 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,133 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,148 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,153 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,158 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,162 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,168 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,184 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,189 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,193 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,197 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,201 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,217 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,221 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,225 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,229 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,234 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,256 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,259 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,260 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,260 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,261 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,261 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,261 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,261 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,262 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,262 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,262 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,262 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,263 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,284 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_eb715246-b4a9-4e3a-afba-d7e40cd02009/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-kaweth.cil.i[307491,307504] [2022-11-25 22:25:53,288 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_eb715246-b4a9-4e3a-afba-d7e40cd02009/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-kaweth.cil.i[307636,307649] [2022-11-25 22:25:53,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:25:53,380 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:25:53,579 WARN L623 FunctionHandler]: Unknown extern function __bad_percpu_size [2022-11-25 22:25:53,580 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock [2022-11-25 22:25:53,581 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_lock_irq [2022-11-25 22:25:53,581 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock [2022-11-25 22:25:53,581 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irq [2022-11-25 22:25:53,582 WARN L623 FunctionHandler]: Unknown extern function _raw_spin_unlock_irqrestore [2022-11-25 22:25:53,583 WARN L623 FunctionHandler]: Unknown extern function queue_delayed_work_on [2022-11-25 22:25:53,590 WARN L623 FunctionHandler]: Unknown extern function netpoll_trap [2022-11-25 22:25:53,590 WARN L623 FunctionHandler]: Unknown extern function __netif_schedule [2022-11-25 22:25:53,602 WARN L623 FunctionHandler]: Unknown extern function warn_slowpath_null [2022-11-25 22:25:53,603 WARN L623 FunctionHandler]: Unknown extern function printk [2022-11-25 22:25:53,604 WARN L623 FunctionHandler]: Unknown extern function __dev_kfree_skb_irq [2022-11-25 22:25:53,626 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:53,632 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:53,634 WARN L623 FunctionHandler]: Unknown extern function kfree [2022-11-25 22:25:53,637 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:53,639 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:53,642 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:53,646 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:53,647 WARN L623 FunctionHandler]: Unknown extern function request_firmware [2022-11-25 22:25:53,649 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:53,649 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:53,650 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-11-25 22:25:53,651 WARN L623 FunctionHandler]: Unknown extern function release_firmware [2022-11-25 22:25:53,654 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:53,660 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:53,662 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:53,666 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:53,669 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:53,669 WARN L623 FunctionHandler]: Unknown extern function usb_reset_configuration [2022-11-25 22:25:53,670 WARN L623 FunctionHandler]: Unknown extern function __const_udelay [2022-11-25 22:25:53,671 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:53,672 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:53,675 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_on [2022-11-25 22:25:53,675 WARN L623 FunctionHandler]: Unknown extern function netif_carrier_off [2022-11-25 22:25:53,678 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:53,680 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 22:25:53,682 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:53,682 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 22:25:53,684 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:53,686 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:53,687 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:53,688 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:53,689 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:53,689 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:53,690 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:53,691 WARN L623 FunctionHandler]: Unknown extern function skb_put [2022-11-25 22:25:53,692 WARN L623 FunctionHandler]: Unknown extern function eth_type_trans [2022-11-25 22:25:53,692 WARN L623 FunctionHandler]: Unknown extern function netif_rx [2022-11-25 22:25:53,694 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:53,695 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_get_interface [2022-11-25 22:25:53,696 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:53,701 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 22:25:53,701 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-25 22:25:53,702 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 22:25:53,702 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 22:25:53,702 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 22:25:53,703 WARN L623 FunctionHandler]: Unknown extern function cancel_delayed_work_sync [2022-11-25 22:25:53,703 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 22:25:53,704 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 22:25:53,704 WARN L623 FunctionHandler]: Unknown extern function usb_autopm_put_interface [2022-11-25 22:25:53,710 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:53,713 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 22:25:53,715 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:53,717 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:53,718 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:53,721 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 22:25:53,721 WARN L623 FunctionHandler]: Unknown extern function usb_unlink_urb [2022-11-25 22:25:53,722 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:53,724 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:53,727 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:53,728 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:53,730 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:53,731 WARN L623 FunctionHandler]: Unknown extern function __raw_spin_lock_init [2022-11-25 22:25:53,731 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 22:25:53,732 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:53,732 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:25:53,733 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:25:53,733 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:53,734 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:53,735 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:53,735 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:53,736 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:53,736 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:25:53,736 WARN L623 FunctionHandler]: Unknown extern function free_pages [2022-11-25 22:25:53,737 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:53,737 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:25:53,737 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:25:53,738 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:25:53,738 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:25:53,738 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-11-25 22:25:53,739 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:53,740 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:53,741 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:53,741 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:53,742 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:53,744 WARN L623 FunctionHandler]: Unknown extern function __init_work [2022-11-25 22:25:53,745 WARN L623 FunctionHandler]: Unknown extern function lockdep_init_map [2022-11-25 22:25:53,745 WARN L623 FunctionHandler]: Unknown extern function init_timer_key [2022-11-25 22:25:53,749 WARN L623 FunctionHandler]: Unknown extern function dev_err [2022-11-25 22:25:53,749 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:25:53,750 WARN L623 FunctionHandler]: Unknown extern function __dynamic_dev_dbg [2022-11-25 22:25:53,750 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 22:25:53,751 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 22:25:53,751 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 22:25:53,752 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 22:25:53,753 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 22:25:53,758 WARN L623 FunctionHandler]: Unknown extern function _dev_info [2022-11-25 22:25:53,758 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 22:25:53,759 WARN L623 FunctionHandler]: Unknown extern function __dynamic_netdev_dbg [2022-11-25 22:25:53,760 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 22:25:53,760 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 22:25:53,760 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 22:25:53,760 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 22:25:53,761 WARN L623 FunctionHandler]: Unknown extern function usb_free_coherent [2022-11-25 22:25:53,761 WARN L623 FunctionHandler]: Unknown extern function __wake_up [2022-11-25 22:25:53,762 WARN L623 FunctionHandler]: Unknown extern function __init_waitqueue_head [2022-11-25 22:25:53,763 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 22:25:53,763 WARN L623 FunctionHandler]: Unknown extern function prepare_to_wait_event [2022-11-25 22:25:53,764 WARN L623 FunctionHandler]: Unknown extern function schedule_timeout [2022-11-25 22:25:53,764 WARN L623 FunctionHandler]: Unknown extern function finish_wait [2022-11-25 22:25:53,765 WARN L623 FunctionHandler]: Unknown extern function dev_warn [2022-11-25 22:25:53,765 WARN L623 FunctionHandler]: Unknown extern function usb_kill_urb [2022-11-25 22:25:53,766 WARN L623 FunctionHandler]: Unknown extern function usb_free_urb [2022-11-25 22:25:53,771 WARN L623 FunctionHandler]: Unknown extern function eth_mac_addr [2022-11-25 22:25:53,772 WARN L623 FunctionHandler]: Unknown extern function eth_validate_addr [2022-11-25 22:25:53,772 WARN L623 FunctionHandler]: Unknown extern function eth_change_mtu [2022-11-25 22:25:53,774 WARN L623 FunctionHandler]: Unknown extern function ldv_initialize [2022-11-25 22:25:53,777 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_register_netdev [2022-11-25 22:25:53,791 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_interrupt_context [2022-11-25 22:25:53,792 WARN L623 FunctionHandler]: Unknown extern function ldv_switch_to_process_context [2022-11-25 22:25:53,802 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_usb_register_driver [2022-11-25 22:25:53,805 WARN L623 FunctionHandler]: Unknown extern function ldv_pre_probe [2022-11-25 22:25:53,807 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 22:25:53,809 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 22:25:53,809 WARN L623 FunctionHandler]: Unknown extern function __ldv_spin_lock [2022-11-25 22:25:53,810 WARN L623 FunctionHandler]: Unknown extern function alloc_etherdev_mqs [2022-11-25 22:25:53,811 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 22:25:53,814 WARN L623 FunctionHandler]: Unknown extern function register_netdev [2022-11-25 22:25:53,815 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 22:25:53,815 WARN L623 FunctionHandler]: Unknown extern function unregister_netdev [2022-11-25 22:25:53,816 WARN L623 FunctionHandler]: Unknown extern function free_netdev [2022-11-25 22:25:53,816 WARN L623 FunctionHandler]: Unknown extern function usb_register_driver [2022-11-25 22:25:53,817 WARN L623 FunctionHandler]: Unknown extern function usb_deregister [2022-11-25 22:25:53,820 WARN L623 FunctionHandler]: Unknown extern function ldv_after_alloc [2022-11-25 22:25:53,821 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,825 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,825 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,826 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,826 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,828 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,829 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,829 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,829 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,830 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,831 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,831 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,832 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,832 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,832 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,833 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,834 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,834 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,835 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,835 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,836 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,836 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,837 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,837 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,838 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,838 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,839 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,839 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,840 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,840 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,841 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,842 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,842 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,843 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,845 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,846 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,847 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,847 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,847 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,848 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,849 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,849 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,849 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,851 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,852 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,853 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,853 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,854 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,854 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,854 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,855 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,856 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,856 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,856 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,857 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,858 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,859 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,859 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,859 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,860 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,861 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,861 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,861 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,862 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,862 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,862 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,862 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,863 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,863 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,863 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,863 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,864 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,864 WARN L623 FunctionHandler]: Unknown extern function ldv_assert [2022-11-25 22:25:53,865 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_eb715246-b4a9-4e3a-afba-d7e40cd02009/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-kaweth.cil.i[307491,307504] [2022-11-25 22:25:53,866 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_eb715246-b4a9-4e3a-afba-d7e40cd02009/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-kaweth.cil.i[307636,307649] [2022-11-25 22:25:53,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:25:54,073 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:25:54,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:54 WrapperNode [2022-11-25 22:25:54,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:25:54,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:25:54,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:25:54,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:25:54,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:54" (1/1) ... [2022-11-25 22:25:54,194 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:54" (1/1) ... [2022-11-25 22:25:54,419 INFO L138 Inliner]: procedures = 391, calls = 2618, calls flagged for inlining = 190, calls inlined = 155, statements flattened = 4311 [2022-11-25 22:25:54,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:25:54,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:25:54,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:25:54,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:25:54,429 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:54" (1/1) ... [2022-11-25 22:25:54,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:54" (1/1) ... [2022-11-25 22:25:54,449 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:54" (1/1) ... [2022-11-25 22:25:54,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:54" (1/1) ... [2022-11-25 22:25:54,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:54" (1/1) ... [2022-11-25 22:25:54,599 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:54" (1/1) ... [2022-11-25 22:25:54,626 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:54" (1/1) ... [2022-11-25 22:25:54,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:54" (1/1) ... [2022-11-25 22:25:54,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:25:54,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:25:54,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:25:54,667 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:25:54,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:54" (1/1) ... [2022-11-25 22:25:54,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:25:54,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:25:54,697 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:25:54,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:25:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_95 [2022-11-25 22:25:54,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_95 [2022-11-25 22:25:54,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-25 22:25:54,741 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-25 22:25:54,741 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-25 22:25:54,742 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-25 22:25:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-25 22:25:54,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-25 22:25:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_91 [2022-11-25 22:25:54,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_91 [2022-11-25 22:25:54,742 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_open [2022-11-25 22:25:54,743 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_open [2022-11-25 22:25:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-25 22:25:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-11-25 22:25:54,743 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-11-25 22:25:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_resume [2022-11-25 22:25:54,743 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_resume [2022-11-25 22:25:54,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-25 22:25:54,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-25 22:25:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-25 22:25:54,744 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-25 22:25:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-25 22:25:54,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-25 22:25:54,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:25:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-25 22:25:54,745 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-25 22:25:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-25 22:25:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_device_lock_of_kaweth_device [2022-11-25 22:25:54,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_device_lock_of_kaweth_device [2022-11-25 22:25:54,745 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_resubmit_rx_urb [2022-11-25 22:25:54,745 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_resubmit_rx_urb [2022-11-25 22:25:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 22:25:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-25 22:25:54,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-25 22:25:54,746 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-11-25 22:25:54,747 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-11-25 22:25:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:25:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-25 22:25:54,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-25 22:25:54,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-25 22:25:54,747 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-25 22:25:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-25 22:25:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-25 22:25:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-25 22:25:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-25 22:25:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-25 22:25:54,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-25 22:25:54,748 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_close [2022-11-25 22:25:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_close [2022-11-25 22:25:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_download_firmware [2022-11-25 22:25:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_download_firmware [2022-11-25 22:25:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 22:25:54,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-25 22:25:54,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-25 22:25:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:25:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-25 22:25:54,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-25 22:25:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-25 22:25:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-25 22:25:54,750 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-25 22:25:54,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-25 22:25:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-25 22:25:54,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-25 22:25:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-25 22:25:54,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-25 22:25:54,751 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-25 22:25:54,751 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-25 22:25:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-25 22:25:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-25 22:25:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-25 22:25:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-25 22:25:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-11-25 22:25:54,752 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-11-25 22:25:54,752 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-25 22:25:54,753 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-25 22:25:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_tx_timeout [2022-11-25 22:25:54,753 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_tx_timeout [2022-11-25 22:25:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:25:54,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:25:54,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_kaweth_driver_exit_11_2 [2022-11-25 22:25:54,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_kaweth_driver_exit_11_2 [2022-11-25 22:25:54,754 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-25 22:25:54,754 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-25 22:25:54,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-25 22:25:54,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-25 22:25:54,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-25 22:25:54,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-25 22:25:54,755 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-11-25 22:25:54,755 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-11-25 22:25:54,755 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_async_set_rx_mode [2022-11-25 22:25:54,755 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_async_set_rx_mode [2022-11-25 22:25:54,755 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-25 22:25:54,755 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-25 22:25:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-25 22:25:54,756 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-25 22:25:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:25:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-25 22:25:54,756 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-25 22:25:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-25 22:25:54,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-25 22:25:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-25 22:25:54,757 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-25 22:25:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-25 22:25:54,757 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-25 22:25:54,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-25 22:25:54,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-25 22:25:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-11-25 22:25:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-11-25 22:25:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-25 22:25:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-25 22:25:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-25 22:25:54,758 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-25 22:25:54,758 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-25 22:25:54,759 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-25 22:25:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_set_rx_mode [2022-11-25 22:25:54,759 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_set_rx_mode [2022-11-25 22:25:54,759 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-25 22:25:54,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-25 22:25:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:25:54,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-25 22:25:54,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-25 22:25:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_resubmit_int_urb [2022-11-25 22:25:54,761 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_resubmit_int_urb [2022-11-25 22:25:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_control [2022-11-25 22:25:54,761 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_control [2022-11-25 22:25:54,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-25 22:25:54,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-25 22:25:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_device_lock_of_kaweth_device [2022-11-25 22:25:54,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_device_lock_of_kaweth_device [2022-11-25 22:25:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2022-11-25 22:25:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_kill_urbs [2022-11-25 22:25:54,762 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_kill_urbs [2022-11-25 22:25:54,762 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_3_4 [2022-11-25 22:25:54,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_3_4 [2022-11-25 22:25:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure kaweth_disconnect [2022-11-25 22:25:54,763 INFO L138 BoogieDeclarations]: Found implementation of procedure kaweth_disconnect [2022-11-25 22:25:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:25:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-25 22:25:54,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-25 22:25:54,763 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-25 22:25:54,763 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-25 22:25:55,489 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:25:55,493 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:25:55,767 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-25 22:26:01,413 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-25 22:26:01,540 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:26:02,259 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:26:02,259 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 22:26:02,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:26:02 BoogieIcfgContainer [2022-11-25 22:26:02,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:26:02,267 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:26:02,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:26:02,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:26:02,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:25:50" (1/3) ... [2022-11-25 22:26:02,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d368f79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:26:02, skipping insertion in model container [2022-11-25 22:26:02,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:25:54" (2/3) ... [2022-11-25 22:26:02,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d368f79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:26:02, skipping insertion in model container [2022-11-25 22:26:02,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:26:02" (3/3) ... [2022-11-25 22:26:02,275 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-kaweth.cil.i [2022-11-25 22:26:02,295 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:26:02,295 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:26:02,391 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:26:02,397 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;@5c3eda2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:26:02,397 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 22:26:02,404 INFO L276 IsEmpty]: Start isEmpty. Operand has 783 states, 442 states have (on average 1.257918552036199) internal successors, (556), 447 states have internal predecessors, (556), 280 states have call successors, (280), 61 states have call predecessors, (280), 60 states have return successors, (274), 273 states have call predecessors, (274), 274 states have call successors, (274) [2022-11-25 22:26:02,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-25 22:26:02,426 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:26:02,427 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:26:02,428 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:26:02,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:26:02,433 INFO L85 PathProgramCache]: Analyzing trace with hash 978019789, now seen corresponding path program 1 times [2022-11-25 22:26:02,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:26:02,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459759059] [2022-11-25 22:26:02,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:26:02,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:26:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:26:03,595 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-25 22:26:03,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:26:03,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459759059] [2022-11-25 22:26:03,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459759059] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:26:03,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:26:03,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:26:03,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398931651] [2022-11-25 22:26:03,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:26:03,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:26:03,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:26:03,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:26:03,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:26:03,645 INFO L87 Difference]: Start difference. First operand has 783 states, 442 states have (on average 1.257918552036199) internal successors, (556), 447 states have internal predecessors, (556), 280 states have call successors, (280), 61 states have call predecessors, (280), 60 states have return successors, (274), 273 states have call predecessors, (274), 274 states have call successors, (274) Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-25 22:26:05,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:26:07,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:26:08,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:26:08,761 INFO L93 Difference]: Finished difference Result 1878 states and 2703 transitions. [2022-11-25 22:26:08,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:26:08,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 132 [2022-11-25 22:26:08,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:26:08,789 INFO L225 Difference]: With dead ends: 1878 [2022-11-25 22:26:08,789 INFO L226 Difference]: Without dead ends: 1050 [2022-11-25 22:26:08,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:26:08,812 INFO L413 NwaCegarLoop]: 1027 mSDtfsCounter, 449 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 1920 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:26:08,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 1920 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 405 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-25 22:26:08,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2022-11-25 22:26:09,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 1046. [2022-11-25 22:26:09,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1046 states, 621 states have (on average 1.2560386473429952) internal successors, (780), 629 states have internal predecessors, (780), 333 states have call successors, (333), 91 states have call predecessors, (333), 91 states have return successors, (333), 330 states have call predecessors, (333), 333 states have call successors, (333) [2022-11-25 22:26:09,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1046 states to 1046 states and 1446 transitions. [2022-11-25 22:26:09,040 INFO L78 Accepts]: Start accepts. Automaton has 1046 states and 1446 transitions. Word has length 132 [2022-11-25 22:26:09,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:26:09,041 INFO L495 AbstractCegarLoop]: Abstraction has 1046 states and 1446 transitions. [2022-11-25 22:26:09,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2022-11-25 22:26:09,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1046 states and 1446 transitions. [2022-11-25 22:26:09,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-25 22:26:09,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:26:09,049 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 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] [2022-11-25 22:26:09,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:26:09,049 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:26:09,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:26:09,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1626030427, now seen corresponding path program 1 times [2022-11-25 22:26:09,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:26:09,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61007763] [2022-11-25 22:26:09,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:26:09,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:26:09,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:26:09,472 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2022-11-25 22:26:09,473 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:26:09,473 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61007763] [2022-11-25 22:26:09,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61007763] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:26:09,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:26:09,474 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:26:09,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451971813] [2022-11-25 22:26:09,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:26:09,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:26:09,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:26:09,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:26:09,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:26:09,477 INFO L87 Difference]: Start difference. First operand 1046 states and 1446 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-25 22:26:13,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:26:13,316 INFO L93 Difference]: Finished difference Result 2771 states and 3838 transitions. [2022-11-25 22:26:13,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:26:13,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 144 [2022-11-25 22:26:13,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:26:13,328 INFO L225 Difference]: With dead ends: 2771 [2022-11-25 22:26:13,328 INFO L226 Difference]: Without dead ends: 1742 [2022-11-25 22:26:13,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:26:13,333 INFO L413 NwaCegarLoop]: 1079 mSDtfsCounter, 865 mSDsluCounter, 822 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 1901 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:26:13,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [865 Valid, 1901 Invalid, 396 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-25 22:26:13,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1742 states. [2022-11-25 22:26:13,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1742 to 1738. [2022-11-25 22:26:13,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1738 states, 1034 states have (on average 1.2446808510638299) internal successors, (1287), 1047 states have internal predecessors, (1287), 557 states have call successors, (557), 146 states have call predecessors, (557), 146 states have return successors, (560), 549 states have call predecessors, (560), 557 states have call successors, (560) [2022-11-25 22:26:13,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 2404 transitions. [2022-11-25 22:26:13,450 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 2404 transitions. Word has length 144 [2022-11-25 22:26:13,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:26:13,451 INFO L495 AbstractCegarLoop]: Abstraction has 1738 states and 2404 transitions. [2022-11-25 22:26:13,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-25 22:26:13,451 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 2404 transitions. [2022-11-25 22:26:13,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-25 22:26:13,456 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:26:13,457 INFO L195 NwaCegarLoop]: trace histogram [10, 8, 8, 8, 8, 8, 8, 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] [2022-11-25 22:26:13,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:26:13,457 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:26:13,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:26:13,459 INFO L85 PathProgramCache]: Analyzing trace with hash -44903993, now seen corresponding path program 1 times [2022-11-25 22:26:13,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:26:13,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012885029] [2022-11-25 22:26:13,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:26:13,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:26:13,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:26:13,946 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2022-11-25 22:26:13,947 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:26:13,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012885029] [2022-11-25 22:26:13,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012885029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:26:13,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:26:13,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:26:13,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497199777] [2022-11-25 22:26:13,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:26:13,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:26:13,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:26:13,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:26:13,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:26:13,950 INFO L87 Difference]: Start difference. First operand 1738 states and 2404 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-25 22:26:16,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:26:18,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:26:18,375 INFO L93 Difference]: Finished difference Result 3837 states and 5284 transitions. [2022-11-25 22:26:18,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:26:18,376 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 150 [2022-11-25 22:26:18,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:26:18,388 INFO L225 Difference]: With dead ends: 3837 [2022-11-25 22:26:18,388 INFO L226 Difference]: Without dead ends: 2116 [2022-11-25 22:26:18,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:26:18,396 INFO L413 NwaCegarLoop]: 1104 mSDtfsCounter, 387 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 437 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 1963 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 437 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:26:18,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 1963 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 437 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-11-25 22:26:18,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2116 states. [2022-11-25 22:26:18,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2116 to 2112. [2022-11-25 22:26:18,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2112 states, 1279 states have (on average 1.2470680218921033) internal successors, (1595), 1296 states have internal predecessors, (1595), 650 states have call successors, (650), 182 states have call predecessors, (650), 182 states have return successors, (653), 640 states have call predecessors, (653), 650 states have call successors, (653) [2022-11-25 22:26:18,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2112 states to 2112 states and 2898 transitions. [2022-11-25 22:26:18,532 INFO L78 Accepts]: Start accepts. Automaton has 2112 states and 2898 transitions. Word has length 150 [2022-11-25 22:26:18,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:26:18,535 INFO L495 AbstractCegarLoop]: Abstraction has 2112 states and 2898 transitions. [2022-11-25 22:26:18,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-25 22:26:18,535 INFO L276 IsEmpty]: Start isEmpty. Operand 2112 states and 2898 transitions. [2022-11-25 22:26:18,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-25 22:26:18,539 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:26:18,539 INFO L195 NwaCegarLoop]: trace histogram [13, 8, 8, 8, 8, 8, 8, 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] [2022-11-25 22:26:18,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 22:26:18,540 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:26:18,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:26:18,540 INFO L85 PathProgramCache]: Analyzing trace with hash -791114974, now seen corresponding path program 1 times [2022-11-25 22:26:18,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:26:18,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484392017] [2022-11-25 22:26:18,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:26:18,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:26:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:26:19,074 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2022-11-25 22:26:19,075 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:26:19,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484392017] [2022-11-25 22:26:19,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484392017] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:26:19,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:26:19,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:26:19,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247424617] [2022-11-25 22:26:19,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:26:19,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:26:19,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:26:19,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:26:19,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:26:19,082 INFO L87 Difference]: Start difference. First operand 2112 states and 2898 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-25 22:26:23,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:26:24,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:26:24,121 INFO L93 Difference]: Finished difference Result 4796 states and 6545 transitions. [2022-11-25 22:26:24,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:26:24,122 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 197 [2022-11-25 22:26:24,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:26:24,136 INFO L225 Difference]: With dead ends: 4796 [2022-11-25 22:26:24,136 INFO L226 Difference]: Without dead ends: 2701 [2022-11-25 22:26:24,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:26:24,145 INFO L413 NwaCegarLoop]: 1173 mSDtfsCounter, 760 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 1757 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-25 22:26:24,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [761 Valid, 1757 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 436 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2022-11-25 22:26:24,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2701 states. [2022-11-25 22:26:24,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2701 to 2693. [2022-11-25 22:26:24,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2693 states, 1637 states have (on average 1.2449602932193036) internal successors, (2038), 1662 states have internal predecessors, (2038), 801 states have call successors, (801), 254 states have call predecessors, (801), 254 states have return successors, (806), 785 states have call predecessors, (806), 801 states have call successors, (806) [2022-11-25 22:26:24,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2693 states to 2693 states and 3645 transitions. [2022-11-25 22:26:24,359 INFO L78 Accepts]: Start accepts. Automaton has 2693 states and 3645 transitions. Word has length 197 [2022-11-25 22:26:24,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:26:24,361 INFO L495 AbstractCegarLoop]: Abstraction has 2693 states and 3645 transitions. [2022-11-25 22:26:24,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-11-25 22:26:24,361 INFO L276 IsEmpty]: Start isEmpty. Operand 2693 states and 3645 transitions. [2022-11-25 22:26:24,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-11-25 22:26:24,367 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:26:24,367 INFO L195 NwaCegarLoop]: trace histogram [15, 12, 12, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:26:24,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 22:26:24,368 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:26:24,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:26:24,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1446880974, now seen corresponding path program 1 times [2022-11-25 22:26:24,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:26:24,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215387205] [2022-11-25 22:26:24,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:26:24,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:26:24,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:26:26,207 INFO L134 CoverageAnalysis]: Checked inductivity of 694 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 694 trivial. 0 not checked. [2022-11-25 22:26:26,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:26:26,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215387205] [2022-11-25 22:26:26,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215387205] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:26:26,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:26:26,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:26:26,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31104174] [2022-11-25 22:26:26,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:26:26,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:26:26,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:26:26,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:26:26,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:26:26,210 INFO L87 Difference]: Start difference. First operand 2693 states and 3645 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-25 22:26:29,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:26:32,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:26:32,929 INFO L93 Difference]: Finished difference Result 6287 states and 8679 transitions. [2022-11-25 22:26:32,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:26:32,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 282 [2022-11-25 22:26:32,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:26:32,956 INFO L225 Difference]: With dead ends: 6287 [2022-11-25 22:26:32,956 INFO L226 Difference]: Without dead ends: 3611 [2022-11-25 22:26:32,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:26:32,968 INFO L413 NwaCegarLoop]: 1065 mSDtfsCounter, 347 mSDsluCounter, 1812 mSDsCounter, 0 mSdLazyCounter, 603 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 2877 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 603 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:26:32,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 2877 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 603 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-11-25 22:26:32,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3611 states. [2022-11-25 22:26:33,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3611 to 2697. [2022-11-25 22:26:33,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2697 states, 1641 states have (on average 1.2443631931748933) internal successors, (2042), 1666 states have internal predecessors, (2042), 801 states have call successors, (801), 254 states have call predecessors, (801), 254 states have return successors, (806), 785 states have call predecessors, (806), 801 states have call successors, (806) [2022-11-25 22:26:33,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2697 states to 2697 states and 3649 transitions. [2022-11-25 22:26:33,293 INFO L78 Accepts]: Start accepts. Automaton has 2697 states and 3649 transitions. Word has length 282 [2022-11-25 22:26:33,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:26:33,294 INFO L495 AbstractCegarLoop]: Abstraction has 2697 states and 3649 transitions. [2022-11-25 22:26:33,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2022-11-25 22:26:33,294 INFO L276 IsEmpty]: Start isEmpty. Operand 2697 states and 3649 transitions. [2022-11-25 22:26:33,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2022-11-25 22:26:33,301 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:26:33,301 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 9, 9, 9, 9, 9, 9, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:26:33,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 22:26:33,302 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:26:33,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:26:33,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1276323869, now seen corresponding path program 1 times [2022-11-25 22:26:33,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:26:33,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100290772] [2022-11-25 22:26:33,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:26:33,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:26:33,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:26:34,322 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2022-11-25 22:26:34,323 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:26:34,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100290772] [2022-11-25 22:26:34,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100290772] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:26:34,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:26:34,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:26:34,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673876356] [2022-11-25 22:26:34,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:26:34,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:26:34,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:26:34,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:26:34,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:26:34,325 INFO L87 Difference]: Start difference. First operand 2697 states and 3649 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-25 22:26:37,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:26:38,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:26:41,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:26:41,122 INFO L93 Difference]: Finished difference Result 5383 states and 7281 transitions. [2022-11-25 22:26:41,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:26:41,123 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 299 [2022-11-25 22:26:41,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:26:41,138 INFO L225 Difference]: With dead ends: 5383 [2022-11-25 22:26:41,138 INFO L226 Difference]: Without dead ends: 2703 [2022-11-25 22:26:41,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:26:41,150 INFO L413 NwaCegarLoop]: 862 mSDtfsCounter, 1 mSDsluCounter, 1721 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:26:41,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2583 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-11-25 22:26:41,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2703 states. [2022-11-25 22:26:41,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2703 to 2701. [2022-11-25 22:26:41,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2701 states, 1645 states have (on average 1.2437689969604864) internal successors, (2046), 1670 states have internal predecessors, (2046), 801 states have call successors, (801), 254 states have call predecessors, (801), 254 states have return successors, (806), 785 states have call predecessors, (806), 801 states have call successors, (806) [2022-11-25 22:26:41,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2701 states to 2701 states and 3653 transitions. [2022-11-25 22:26:41,322 INFO L78 Accepts]: Start accepts. Automaton has 2701 states and 3653 transitions. Word has length 299 [2022-11-25 22:26:41,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:26:41,326 INFO L495 AbstractCegarLoop]: Abstraction has 2701 states and 3653 transitions. [2022-11-25 22:26:41,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2022-11-25 22:26:41,326 INFO L276 IsEmpty]: Start isEmpty. Operand 2701 states and 3653 transitions. [2022-11-25 22:26:41,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-11-25 22:26:41,332 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:26:41,333 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 9, 9, 9, 9, 9, 9, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:26:41,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 22:26:41,333 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:26:41,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:26:41,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1645871793, now seen corresponding path program 1 times [2022-11-25 22:26:41,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:26:41,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439307136] [2022-11-25 22:26:41,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:26:41,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:26:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:26:42,327 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 796 trivial. 0 not checked. [2022-11-25 22:26:42,327 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:26:42,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439307136] [2022-11-25 22:26:42,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439307136] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:26:42,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842404158] [2022-11-25 22:26:42,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:26:42,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:26:42,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:26:42,331 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:26:42,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:26:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:26:43,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 5452 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-25 22:26:43,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:26:57,380 INFO L134 CoverageAnalysis]: Checked inductivity of 798 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 798 trivial. 0 not checked. [2022-11-25 22:26:57,381 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:26:57,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842404158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:26:57,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:26:57,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2022-11-25 22:26:57,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103686910] [2022-11-25 22:26:57,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:26:57,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:26:57,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:26:57,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:26:57,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-25 22:26:57,384 INFO L87 Difference]: Start difference. First operand 2701 states and 3653 transitions. Second operand has 6 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) [2022-11-25 22:27:01,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:27:02,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:27:03,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:27:05,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:27:08,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:08,069 INFO L93 Difference]: Finished difference Result 4927 states and 6712 transitions. [2022-11-25 22:27:08,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:27:08,070 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) Word has length 301 [2022-11-25 22:27:08,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:08,096 INFO L225 Difference]: With dead ends: 4927 [2022-11-25 22:27:08,096 INFO L226 Difference]: Without dead ends: 4925 [2022-11-25 22:27:08,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-11-25 22:27:08,100 INFO L413 NwaCegarLoop]: 1089 mSDtfsCounter, 770 mSDsluCounter, 3334 mSDsCounter, 0 mSdLazyCounter, 1362 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 4423 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:08,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [771 Valid, 4423 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1362 Invalid, 0 Unknown, 0 Unchecked, 10.2s Time] [2022-11-25 22:27:08,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4925 states. [2022-11-25 22:27:08,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4925 to 4912. [2022-11-25 22:27:08,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4912 states, 3013 states have (on average 1.247261865250581) internal successors, (3758), 3069 states have internal predecessors, (3758), 1448 states have call successors, (1448), 457 states have call predecessors, (1448), 450 states have return successors, (1462), 1399 states have call predecessors, (1462), 1448 states have call successors, (1462) [2022-11-25 22:27:08,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4912 states to 4912 states and 6668 transitions. [2022-11-25 22:27:08,603 INFO L78 Accepts]: Start accepts. Automaton has 4912 states and 6668 transitions. Word has length 301 [2022-11-25 22:27:08,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:08,604 INFO L495 AbstractCegarLoop]: Abstraction has 4912 states and 6668 transitions. [2022-11-25 22:27:08,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 1 states have call successors, (38), 1 states have call predecessors, (38), 2 states have return successors, (37), 2 states have call predecessors, (37), 1 states have call successors, (37) [2022-11-25 22:27:08,604 INFO L276 IsEmpty]: Start isEmpty. Operand 4912 states and 6668 transitions. [2022-11-25 22:27:08,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2022-11-25 22:27:08,613 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:08,613 INFO L195 NwaCegarLoop]: trace histogram [17, 15, 15, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:27:08,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:27:08,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:27:08,830 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:27:08,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:08,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1072660763, now seen corresponding path program 1 times [2022-11-25 22:27:08,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:08,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28171946] [2022-11-25 22:27:08,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:08,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:09,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:09,594 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2022-11-25 22:27:09,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:09,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28171946] [2022-11-25 22:27:09,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28171946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:27:09,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:27:09,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:27:09,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608884530] [2022-11-25 22:27:09,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:27:09,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:27:09,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:27:09,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:27:09,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:27:09,597 INFO L87 Difference]: Start difference. First operand 4912 states and 6668 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-25 22:27:12,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:27:14,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:27:16,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:16,389 INFO L93 Difference]: Finished difference Result 10454 states and 14197 transitions. [2022-11-25 22:27:16,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:27:16,392 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 348 [2022-11-25 22:27:16,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:16,422 INFO L225 Difference]: With dead ends: 10454 [2022-11-25 22:27:16,423 INFO L226 Difference]: Without dead ends: 5559 [2022-11-25 22:27:16,441 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 [2022-11-25 22:27:16,442 INFO L413 NwaCegarLoop]: 1082 mSDtfsCounter, 412 mSDsluCounter, 1701 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 2783 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:16,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 2783 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-11-25 22:27:16,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5559 states. [2022-11-25 22:27:16,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5559 to 5549. [2022-11-25 22:27:16,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5549 states, 3432 states have (on average 1.252039627039627) internal successors, (4297), 3500 states have internal predecessors, (4297), 1601 states have call successors, (1601), 523 states have call predecessors, (1601), 515 states have return successors, (1615), 1542 states have call predecessors, (1615), 1601 states have call successors, (1615) [2022-11-25 22:27:17,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5549 states to 5549 states and 7513 transitions. [2022-11-25 22:27:17,019 INFO L78 Accepts]: Start accepts. Automaton has 5549 states and 7513 transitions. Word has length 348 [2022-11-25 22:27:17,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:17,020 INFO L495 AbstractCegarLoop]: Abstraction has 5549 states and 7513 transitions. [2022-11-25 22:27:17,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-25 22:27:17,022 INFO L276 IsEmpty]: Start isEmpty. Operand 5549 states and 7513 transitions. [2022-11-25 22:27:17,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2022-11-25 22:27:17,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:17,031 INFO L195 NwaCegarLoop]: trace histogram [19, 16, 16, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:27:17,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 22:27:17,032 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:27:17,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:17,032 INFO L85 PathProgramCache]: Analyzing trace with hash 383636989, now seen corresponding path program 1 times [2022-11-25 22:27:17,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:17,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868112433] [2022-11-25 22:27:17,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:17,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:17,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1037 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 1002 trivial. 0 not checked. [2022-11-25 22:27:17,730 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:17,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868112433] [2022-11-25 22:27:17,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868112433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:27:17,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:27:17,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:27:17,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290813063] [2022-11-25 22:27:17,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:27:17,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:27:17,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:27:17,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:27:17,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:27:17,734 INFO L87 Difference]: Start difference. First operand 5549 states and 7513 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-25 22:27:21,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:27:23,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:23,880 INFO L93 Difference]: Finished difference Result 14138 states and 19457 transitions. [2022-11-25 22:27:23,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:27:23,881 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 371 [2022-11-25 22:27:23,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:23,925 INFO L225 Difference]: With dead ends: 14138 [2022-11-25 22:27:23,925 INFO L226 Difference]: Without dead ends: 8606 [2022-11-25 22:27:23,944 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 [2022-11-25 22:27:23,944 INFO L413 NwaCegarLoop]: 1453 mSDtfsCounter, 812 mSDsluCounter, 2380 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 86 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 3833 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:23,945 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 3833 Invalid, 1000 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 913 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-25 22:27:23,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8606 states. [2022-11-25 22:27:24,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8606 to 6462. [2022-11-25 22:27:24,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6462 states, 3975 states have (on average 1.2477987421383647) internal successors, (4960), 4057 states have internal predecessors, (4960), 1856 states have call successors, (1856), 639 states have call predecessors, (1856), 630 states have return successors, (1872), 1785 states have call predecessors, (1872), 1856 states have call successors, (1872) [2022-11-25 22:27:24,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6462 states to 6462 states and 8688 transitions. [2022-11-25 22:27:24,654 INFO L78 Accepts]: Start accepts. Automaton has 6462 states and 8688 transitions. Word has length 371 [2022-11-25 22:27:24,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:24,655 INFO L495 AbstractCegarLoop]: Abstraction has 6462 states and 8688 transitions. [2022-11-25 22:27:24,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-25 22:27:24,655 INFO L276 IsEmpty]: Start isEmpty. Operand 6462 states and 8688 transitions. [2022-11-25 22:27:24,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2022-11-25 22:27:24,665 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:24,665 INFO L195 NwaCegarLoop]: trace histogram [19, 16, 16, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:27:24,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 22:27:24,666 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:27:24,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:24,666 INFO L85 PathProgramCache]: Analyzing trace with hash 2127648026, now seen corresponding path program 1 times [2022-11-25 22:27:24,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:24,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343554141] [2022-11-25 22:27:24,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:24,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:24,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:25,252 INFO L134 CoverageAnalysis]: Checked inductivity of 1037 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 1002 trivial. 0 not checked. [2022-11-25 22:27:25,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:25,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343554141] [2022-11-25 22:27:25,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343554141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:27:25,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:27:25,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:27:25,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702151871] [2022-11-25 22:27:25,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:27:25,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:27:25,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:27:25,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:27:25,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:27:25,255 INFO L87 Difference]: Start difference. First operand 6462 states and 8688 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-25 22:27:27,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:27:29,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:27:31,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:27:34,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:34,591 INFO L93 Difference]: Finished difference Result 16111 states and 22206 transitions. [2022-11-25 22:27:34,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:27:34,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 372 [2022-11-25 22:27:34,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:34,698 INFO L225 Difference]: With dead ends: 16111 [2022-11-25 22:27:34,698 INFO L226 Difference]: Without dead ends: 9666 [2022-11-25 22:27:34,720 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 [2022-11-25 22:27:34,721 INFO L413 NwaCegarLoop]: 1461 mSDtfsCounter, 727 mSDsluCounter, 2403 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 79 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 862 SdHoareTripleChecker+Valid, 3864 SdHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:34,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [862 Valid, 3864 Invalid, 1006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 925 Invalid, 2 Unknown, 0 Unchecked, 8.5s Time] [2022-11-25 22:27:34,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9666 states. [2022-11-25 22:27:35,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9666 to 7055. [2022-11-25 22:27:35,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7055 states, 4362 states have (on average 1.2524071526822558) internal successors, (5463), 4456 states have internal predecessors, (5463), 2009 states have call successors, (2009), 693 states have call predecessors, (2009), 683 states have return successors, (2025), 1928 states have call predecessors, (2025), 2009 states have call successors, (2025) [2022-11-25 22:27:35,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7055 states to 7055 states and 9497 transitions. [2022-11-25 22:27:35,420 INFO L78 Accepts]: Start accepts. Automaton has 7055 states and 9497 transitions. Word has length 372 [2022-11-25 22:27:35,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:35,421 INFO L495 AbstractCegarLoop]: Abstraction has 7055 states and 9497 transitions. [2022-11-25 22:27:35,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-25 22:27:35,421 INFO L276 IsEmpty]: Start isEmpty. Operand 7055 states and 9497 transitions. [2022-11-25 22:27:35,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2022-11-25 22:27:35,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:35,428 INFO L195 NwaCegarLoop]: trace histogram [19, 16, 16, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:27:35,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 22:27:35,428 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:27:35,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:35,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1069772572, now seen corresponding path program 1 times [2022-11-25 22:27:35,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:35,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671327998] [2022-11-25 22:27:35,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:35,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:36,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 1002 trivial. 0 not checked. [2022-11-25 22:27:36,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:36,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671327998] [2022-11-25 22:27:36,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671327998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:27:36,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:27:36,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:27:36,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888426043] [2022-11-25 22:27:36,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:27:36,053 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:27:36,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:27:36,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:27:36,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:27:36,055 INFO L87 Difference]: Start difference. First operand 7055 states and 9497 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-25 22:27:38,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:27:39,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:27:41,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:27:44,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:44,554 INFO L93 Difference]: Finished difference Result 17169 states and 23612 transitions. [2022-11-25 22:27:44,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:27:44,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 380 [2022-11-25 22:27:44,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:44,593 INFO L225 Difference]: With dead ends: 17169 [2022-11-25 22:27:44,593 INFO L226 Difference]: Without dead ends: 10131 [2022-11-25 22:27:44,612 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 [2022-11-25 22:27:44,613 INFO L413 NwaCegarLoop]: 1440 mSDtfsCounter, 878 mSDsluCounter, 2451 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 91 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 3891 SdHoareTripleChecker+Invalid, 1041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:44,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [994 Valid, 3891 Invalid, 1041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 949 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-11-25 22:27:44,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10131 states. [2022-11-25 22:27:45,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10131 to 7664. [2022-11-25 22:27:45,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7664 states, 4765 states have (on average 1.2554039874081846) internal successors, (5982), 4871 states have internal predecessors, (5982), 2162 states have call successors, (2162), 747 states have call predecessors, (2162), 736 states have return successors, (2178), 2071 states have call predecessors, (2178), 2162 states have call successors, (2178) [2022-11-25 22:27:45,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7664 states to 7664 states and 10322 transitions. [2022-11-25 22:27:45,526 INFO L78 Accepts]: Start accepts. Automaton has 7664 states and 10322 transitions. Word has length 380 [2022-11-25 22:27:45,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:45,527 INFO L495 AbstractCegarLoop]: Abstraction has 7664 states and 10322 transitions. [2022-11-25 22:27:45,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-25 22:27:45,528 INFO L276 IsEmpty]: Start isEmpty. Operand 7664 states and 10322 transitions. [2022-11-25 22:27:45,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2022-11-25 22:27:45,534 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:45,535 INFO L195 NwaCegarLoop]: trace histogram [19, 16, 16, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:27:45,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 22:27:45,535 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:27:45,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:45,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1600007468, now seen corresponding path program 1 times [2022-11-25 22:27:45,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:45,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036429758] [2022-11-25 22:27:45,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:45,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:45,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:46,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1039 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 1002 trivial. 0 not checked. [2022-11-25 22:27:46,138 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:46,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036429758] [2022-11-25 22:27:46,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036429758] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:27:46,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:27:46,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:27:46,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961447372] [2022-11-25 22:27:46,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:27:46,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:27:46,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:27:46,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:27:46,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:27:46,141 INFO L87 Difference]: Start difference. First operand 7664 states and 10322 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-25 22:27:49,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:27:52,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:52,857 INFO L93 Difference]: Finished difference Result 18594 states and 25543 transitions. [2022-11-25 22:27:52,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:27:52,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 381 [2022-11-25 22:27:52,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:52,898 INFO L225 Difference]: With dead ends: 18594 [2022-11-25 22:27:52,898 INFO L226 Difference]: Without dead ends: 10947 [2022-11-25 22:27:52,914 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 [2022-11-25 22:27:52,915 INFO L413 NwaCegarLoop]: 1464 mSDtfsCounter, 806 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 949 mSolverCounterSat, 100 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 3857 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 100 IncrementalHoareTripleChecker+Valid, 949 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:52,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [933 Valid, 3857 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [100 Valid, 949 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-11-25 22:27:52,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10947 states. [2022-11-25 22:27:53,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10947 to 8359. [2022-11-25 22:27:53,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8359 states, 5214 states have (on average 1.2556578442654391) internal successors, (6547), 5332 states have internal predecessors, (6547), 2333 states have call successors, (2333), 824 states have call predecessors, (2333), 811 states have return successors, (2349), 2231 states have call predecessors, (2349), 2333 states have call successors, (2349) [2022-11-25 22:27:53,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8359 states to 8359 states and 11229 transitions. [2022-11-25 22:27:53,643 INFO L78 Accepts]: Start accepts. Automaton has 8359 states and 11229 transitions. Word has length 381 [2022-11-25 22:27:53,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:53,644 INFO L495 AbstractCegarLoop]: Abstraction has 8359 states and 11229 transitions. [2022-11-25 22:27:53,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 3 states have call successors, (53), 2 states have call predecessors, (53), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-25 22:27:53,644 INFO L276 IsEmpty]: Start isEmpty. Operand 8359 states and 11229 transitions. [2022-11-25 22:27:53,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2022-11-25 22:27:53,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:53,652 INFO L195 NwaCegarLoop]: trace histogram [20, 16, 16, 9, 9, 9, 9, 9, 9, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:27:53,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 22:27:53,652 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:27:53,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:53,653 INFO L85 PathProgramCache]: Analyzing trace with hash -2001794823, now seen corresponding path program 1 times [2022-11-25 22:27:53,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:53,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017684623] [2022-11-25 22:27:53,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:53,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:27:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:27:54,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1120 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 1073 trivial. 0 not checked. [2022-11-25 22:27:54,156 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:27:54,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017684623] [2022-11-25 22:27:54,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017684623] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:27:54,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:27:54,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:27:54,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110646681] [2022-11-25 22:27:54,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:27:54,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:27:54,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:27:54,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:27:54,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:27:54,159 INFO L87 Difference]: Start difference. First operand 8359 states and 11229 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-25 22:27:57,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:27:59,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:27:59,050 INFO L93 Difference]: Finished difference Result 17041 states and 22824 transitions. [2022-11-25 22:27:59,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:27:59,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 386 [2022-11-25 22:27:59,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:27:59,083 INFO L225 Difference]: With dead ends: 17041 [2022-11-25 22:27:59,083 INFO L226 Difference]: Without dead ends: 8699 [2022-11-25 22:27:59,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:27:59,100 INFO L413 NwaCegarLoop]: 1245 mSDtfsCounter, 492 mSDsluCounter, 825 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 492 SdHoareTripleChecker+Valid, 2070 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:27:59,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [492 Valid, 2070 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 496 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2022-11-25 22:27:59,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8699 states. [2022-11-25 22:27:59,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8699 to 8675. [2022-11-25 22:27:59,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8675 states, 5399 states have (on average 1.2515280607519912) internal successors, (6757), 5517 states have internal predecessors, (6757), 2411 states have call successors, (2411), 874 states have call predecessors, (2411), 864 states have return successors, (2421), 2314 states have call predecessors, (2421), 2411 states have call successors, (2421) [2022-11-25 22:27:59,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8675 states to 8675 states and 11589 transitions. [2022-11-25 22:27:59,867 INFO L78 Accepts]: Start accepts. Automaton has 8675 states and 11589 transitions. Word has length 386 [2022-11-25 22:27:59,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:27:59,867 INFO L495 AbstractCegarLoop]: Abstraction has 8675 states and 11589 transitions. [2022-11-25 22:27:59,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) [2022-11-25 22:27:59,868 INFO L276 IsEmpty]: Start isEmpty. Operand 8675 states and 11589 transitions. [2022-11-25 22:27:59,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2022-11-25 22:27:59,877 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:27:59,878 INFO L195 NwaCegarLoop]: trace histogram [20, 18, 18, 9, 9, 9, 9, 9, 9, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:27:59,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 22:27:59,878 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:27:59,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:27:59,879 INFO L85 PathProgramCache]: Analyzing trace with hash 660809397, now seen corresponding path program 1 times [2022-11-25 22:27:59,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:27:59,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378825289] [2022-11-25 22:27:59,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:27:59,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:28:00,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:28:00,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1291 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 1240 trivial. 0 not checked. [2022-11-25 22:28:00,555 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:28:00,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378825289] [2022-11-25 22:28:00,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378825289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:28:00,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:28:00,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:28:00,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770018256] [2022-11-25 22:28:00,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:28:00,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:28:00,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:28:00,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:28:00,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:28:00,560 INFO L87 Difference]: Start difference. First operand 8675 states and 11589 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-25 22:28:05,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:28:06,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:28:06,114 INFO L93 Difference]: Finished difference Result 13895 states and 18502 transitions. [2022-11-25 22:28:06,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:28:06,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 455 [2022-11-25 22:28:06,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:28:06,150 INFO L225 Difference]: With dead ends: 13895 [2022-11-25 22:28:06,150 INFO L226 Difference]: Without dead ends: 8675 [2022-11-25 22:28:06,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:28:06,168 INFO L413 NwaCegarLoop]: 1138 mSDtfsCounter, 450 mSDsluCounter, 772 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 1910 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-25 22:28:06,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 1910 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 474 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-11-25 22:28:06,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8675 states. [2022-11-25 22:28:06,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8675 to 8655. [2022-11-25 22:28:06,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8655 states, 5384 states have (on average 1.2479569093610698) internal successors, (6719), 5500 states have internal predecessors, (6719), 2394 states have call successors, (2394), 886 states have call predecessors, (2394), 876 states have return successors, (2402), 2299 states have call predecessors, (2402), 2394 states have call successors, (2402) [2022-11-25 22:28:06,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8655 states to 8655 states and 11515 transitions. [2022-11-25 22:28:06,921 INFO L78 Accepts]: Start accepts. Automaton has 8655 states and 11515 transitions. Word has length 455 [2022-11-25 22:28:06,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:28:06,921 INFO L495 AbstractCegarLoop]: Abstraction has 8655 states and 11515 transitions. [2022-11-25 22:28:06,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-25 22:28:06,922 INFO L276 IsEmpty]: Start isEmpty. Operand 8655 states and 11515 transitions. [2022-11-25 22:28:06,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2022-11-25 22:28:06,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:28:06,931 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 9, 9, 9, 9, 9, 9, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:28:06,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 22:28:06,932 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:28:06,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:28:06,932 INFO L85 PathProgramCache]: Analyzing trace with hash 887791844, now seen corresponding path program 1 times [2022-11-25 22:28:06,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:28:06,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095439293] [2022-11-25 22:28:06,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:06,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:28:07,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:28:14,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1425 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1422 trivial. 0 not checked. [2022-11-25 22:28:14,449 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:28:14,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095439293] [2022-11-25 22:28:14,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095439293] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:28:14,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:28:14,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 22:28:14,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396240599] [2022-11-25 22:28:14,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:28:14,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 22:28:14,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:28:14,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 22:28:14,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-25 22:28:14,451 INFO L87 Difference]: Start difference. First operand 8655 states and 11515 transitions. Second operand has 8 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 3 states have call successors, (64), 3 states have call predecessors, (64), 3 states have return successors, (62), 5 states have call predecessors, (62), 3 states have call successors, (62) [2022-11-25 22:28:23,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:28:23,137 INFO L93 Difference]: Finished difference Result 9022 states and 11936 transitions. [2022-11-25 22:28:23,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 22:28:23,138 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 3 states have call successors, (64), 3 states have call predecessors, (64), 3 states have return successors, (62), 5 states have call predecessors, (62), 3 states have call successors, (62) Word has length 477 [2022-11-25 22:28:23,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:28:23,183 INFO L225 Difference]: With dead ends: 9022 [2022-11-25 22:28:23,183 INFO L226 Difference]: Without dead ends: 9020 [2022-11-25 22:28:23,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-11-25 22:28:23,189 INFO L413 NwaCegarLoop]: 873 mSDtfsCounter, 1130 mSDsluCounter, 2318 mSDsCounter, 0 mSdLazyCounter, 1449 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 3191 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:28:23,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1132 Valid, 3191 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1449 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-11-25 22:28:23,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9020 states. [2022-11-25 22:28:24,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9020 to 8980. [2022-11-25 22:28:24,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8980 states, 5562 states have (on average 1.2411003236245954) internal successors, (6903), 5678 states have internal predecessors, (6903), 2444 states have call successors, (2444), 983 states have call predecessors, (2444), 973 states have return successors, (2452), 2349 states have call predecessors, (2452), 2444 states have call successors, (2452) [2022-11-25 22:28:24,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 11799 transitions. [2022-11-25 22:28:24,753 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 11799 transitions. Word has length 477 [2022-11-25 22:28:24,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:28:24,754 INFO L495 AbstractCegarLoop]: Abstraction has 8980 states and 11799 transitions. [2022-11-25 22:28:24,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 18.571428571428573) internal successors, (130), 7 states have internal predecessors, (130), 3 states have call successors, (64), 3 states have call predecessors, (64), 3 states have return successors, (62), 5 states have call predecessors, (62), 3 states have call successors, (62) [2022-11-25 22:28:24,754 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 11799 transitions. [2022-11-25 22:28:24,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 653 [2022-11-25 22:28:24,773 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:28:24,774 INFO L195 NwaCegarLoop]: trace histogram [24, 23, 21, 21, 14, 14, 14, 14, 14, 14, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:28:24,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 22:28:24,774 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:28:24,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:28:24,775 INFO L85 PathProgramCache]: Analyzing trace with hash -8962543, now seen corresponding path program 1 times [2022-11-25 22:28:24,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:28:24,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015717894] [2022-11-25 22:28:24,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:24,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:28:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:28:25,656 INFO L134 CoverageAnalysis]: Checked inductivity of 2470 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 2449 trivial. 0 not checked. [2022-11-25 22:28:25,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:28:25,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015717894] [2022-11-25 22:28:25,656 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015717894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:28:25,656 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:28:25,657 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 22:28:25,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924252244] [2022-11-25 22:28:25,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:28:25,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:28:25,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:28:25,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:28:25,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:28:25,659 INFO L87 Difference]: Start difference. First operand 8980 states and 11799 transitions. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 3 states have call successors, (95), 2 states have call predecessors, (95), 1 states have return successors, (94), 3 states have call predecessors, (94), 3 states have call successors, (94) [2022-11-25 22:28:29,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:28:31,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:28:31,706 INFO L93 Difference]: Finished difference Result 20837 states and 27563 transitions. [2022-11-25 22:28:31,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:28:31,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 3 states have call successors, (95), 2 states have call predecessors, (95), 1 states have return successors, (94), 3 states have call predecessors, (94), 3 states have call successors, (94) Word has length 652 [2022-11-25 22:28:31,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:28:31,748 INFO L225 Difference]: With dead ends: 20837 [2022-11-25 22:28:31,748 INFO L226 Difference]: Without dead ends: 11874 [2022-11-25 22:28:31,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:28:31,773 INFO L413 NwaCegarLoop]: 1463 mSDtfsCounter, 773 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 2276 SdHoareTripleChecker+Invalid, 514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:28:31,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 2276 Invalid, 514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 509 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2022-11-25 22:28:31,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11874 states. [2022-11-25 22:28:33,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11874 to 11866. [2022-11-25 22:28:33,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11866 states, 7461 states have (on average 1.247687977482911) internal successors, (9309), 7620 states have internal predecessors, (9309), 3189 states have call successors, (3189), 1226 states have call predecessors, (3189), 1215 states have return successors, (3207), 3050 states have call predecessors, (3207), 3189 states have call successors, (3207) [2022-11-25 22:28:33,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11866 states to 11866 states and 15705 transitions. [2022-11-25 22:28:33,511 INFO L78 Accepts]: Start accepts. Automaton has 11866 states and 15705 transitions. Word has length 652 [2022-11-25 22:28:33,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:28:33,512 INFO L495 AbstractCegarLoop]: Abstraction has 11866 states and 15705 transitions. [2022-11-25 22:28:33,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 3 states have call successors, (95), 2 states have call predecessors, (95), 1 states have return successors, (94), 3 states have call predecessors, (94), 3 states have call successors, (94) [2022-11-25 22:28:33,513 INFO L276 IsEmpty]: Start isEmpty. Operand 11866 states and 15705 transitions. [2022-11-25 22:28:33,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 673 [2022-11-25 22:28:33,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:28:33,538 INFO L195 NwaCegarLoop]: trace histogram [26, 22, 21, 21, 14, 14, 14, 14, 14, 14, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:28:33,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 22:28:33,538 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:28:33,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:28:33,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1143162369, now seen corresponding path program 1 times [2022-11-25 22:28:33,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:28:33,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722370076] [2022-11-25 22:28:33,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:33,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:28:33,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:28:34,686 INFO L134 CoverageAnalysis]: Checked inductivity of 2593 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 2540 trivial. 0 not checked. [2022-11-25 22:28:34,687 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:28:34,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722370076] [2022-11-25 22:28:34,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722370076] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:28:34,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:28:34,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:28:34,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21019465] [2022-11-25 22:28:34,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:28:34,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:28:34,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:28:34,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:28:34,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:28:34,690 INFO L87 Difference]: Start difference. First operand 11866 states and 15705 transitions. Second operand has 5 states, 5 states have (on average 40.6) internal successors, (203), 4 states have internal predecessors, (203), 3 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (95), 4 states have call predecessors, (95), 3 states have call successors, (95) [2022-11-25 22:28:38,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:28:40,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:28:48,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:28:48,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:28:48,465 INFO L93 Difference]: Finished difference Result 26634 states and 35235 transitions. [2022-11-25 22:28:48,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:28:48,466 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.6) internal successors, (203), 4 states have internal predecessors, (203), 3 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (95), 4 states have call predecessors, (95), 3 states have call successors, (95) Word has length 672 [2022-11-25 22:28:48,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:28:48,512 INFO L225 Difference]: With dead ends: 26634 [2022-11-25 22:28:48,513 INFO L226 Difference]: Without dead ends: 14785 [2022-11-25 22:28:48,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:28:48,538 INFO L413 NwaCegarLoop]: 1501 mSDtfsCounter, 803 mSDsluCounter, 3815 mSDsCounter, 0 mSdLazyCounter, 1149 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 5316 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1149 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:28:48,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 5316 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1149 Invalid, 1 Unknown, 0 Unchecked, 11.7s Time] [2022-11-25 22:28:48,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14785 states. [2022-11-25 22:28:50,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14785 to 14741. [2022-11-25 22:28:50,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14741 states, 9272 states have (on average 1.2404012079378774) internal successors, (11501), 9472 states have internal predecessors, (11501), 3973 states have call successors, (3973), 1488 states have call predecessors, (3973), 1495 states have return successors, (4018), 3811 states have call predecessors, (4018), 3973 states have call successors, (4018) [2022-11-25 22:28:50,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14741 states to 14741 states and 19492 transitions. [2022-11-25 22:28:50,863 INFO L78 Accepts]: Start accepts. Automaton has 14741 states and 19492 transitions. Word has length 672 [2022-11-25 22:28:50,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:28:50,863 INFO L495 AbstractCegarLoop]: Abstraction has 14741 states and 19492 transitions. [2022-11-25 22:28:50,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.6) internal successors, (203), 4 states have internal predecessors, (203), 3 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (95), 4 states have call predecessors, (95), 3 states have call successors, (95) [2022-11-25 22:28:50,864 INFO L276 IsEmpty]: Start isEmpty. Operand 14741 states and 19492 transitions. [2022-11-25 22:28:50,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 674 [2022-11-25 22:28:50,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:28:50,887 INFO L195 NwaCegarLoop]: trace histogram [26, 22, 21, 21, 14, 14, 14, 14, 14, 14, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:28:50,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 22:28:50,888 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:28:50,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:28:50,888 INFO L85 PathProgramCache]: Analyzing trace with hash 196952876, now seen corresponding path program 1 times [2022-11-25 22:28:50,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:28:50,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821394426] [2022-11-25 22:28:50,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:28:50,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:28:51,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:28:52,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2593 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 2540 trivial. 0 not checked. [2022-11-25 22:28:52,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:28:52,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821394426] [2022-11-25 22:28:52,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821394426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:28:52,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:28:52,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:28:52,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834512843] [2022-11-25 22:28:52,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:28:52,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:28:52,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:28:52,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:28:52,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:28:52,049 INFO L87 Difference]: Start difference. First operand 14741 states and 19492 transitions. Second operand has 5 states, 5 states have (on average 40.8) internal successors, (204), 4 states have internal predecessors, (204), 3 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (95), 4 states have call predecessors, (95), 3 states have call successors, (95) [2022-11-25 22:28:57,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:28:59,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:29:05,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:29:06,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:29:06,004 INFO L93 Difference]: Finished difference Result 32448 states and 42898 transitions. [2022-11-25 22:29:06,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:29:06,005 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 4 states have internal predecessors, (204), 3 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (95), 4 states have call predecessors, (95), 3 states have call successors, (95) Word has length 673 [2022-11-25 22:29:06,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:29:06,053 INFO L225 Difference]: With dead ends: 32448 [2022-11-25 22:29:06,053 INFO L226 Difference]: Without dead ends: 17724 [2022-11-25 22:29:06,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:29:06,078 INFO L413 NwaCegarLoop]: 1506 mSDtfsCounter, 805 mSDsluCounter, 3823 mSDsCounter, 0 mSdLazyCounter, 1153 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 5329 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1153 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:29:06,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 5329 Invalid, 1157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1153 Invalid, 1 Unknown, 0 Unchecked, 11.5s Time] [2022-11-25 22:29:06,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17724 states. [2022-11-25 22:29:08,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17724 to 17680. [2022-11-25 22:29:08,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17680 states, 11134 states have (on average 1.2344171007724087) internal successors, (13744), 11375 states have internal predecessors, (13744), 4757 states have call successors, (4757), 1763 states have call predecessors, (4757), 1788 states have return successors, (4829), 4572 states have call predecessors, (4829), 4757 states have call successors, (4829) [2022-11-25 22:29:08,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17680 states to 17680 states and 23330 transitions. [2022-11-25 22:29:08,493 INFO L78 Accepts]: Start accepts. Automaton has 17680 states and 23330 transitions. Word has length 673 [2022-11-25 22:29:08,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:29:08,494 INFO L495 AbstractCegarLoop]: Abstraction has 17680 states and 23330 transitions. [2022-11-25 22:29:08,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.8) internal successors, (204), 4 states have internal predecessors, (204), 3 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (95), 4 states have call predecessors, (95), 3 states have call successors, (95) [2022-11-25 22:29:08,494 INFO L276 IsEmpty]: Start isEmpty. Operand 17680 states and 23330 transitions. [2022-11-25 22:29:08,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 675 [2022-11-25 22:29:08,528 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:29:08,529 INFO L195 NwaCegarLoop]: trace histogram [26, 22, 21, 21, 14, 14, 14, 14, 14, 14, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:29:08,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 22:29:08,529 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:29:08,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:29:08,530 INFO L85 PathProgramCache]: Analyzing trace with hash -232841481, now seen corresponding path program 1 times [2022-11-25 22:29:08,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:29:08,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199138272] [2022-11-25 22:29:08,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:29:08,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:29:09,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:29:09,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2593 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 2540 trivial. 0 not checked. [2022-11-25 22:29:09,909 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:29:09,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199138272] [2022-11-25 22:29:09,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199138272] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:29:09,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:29:09,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:29:09,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365550838] [2022-11-25 22:29:09,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:29:09,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:29:09,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:29:09,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:29:09,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:29:09,913 INFO L87 Difference]: Start difference. First operand 17680 states and 23330 transitions. Second operand has 5 states, 5 states have (on average 41.0) internal successors, (205), 4 states have internal predecessors, (205), 3 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (95), 4 states have call predecessors, (95), 3 states have call successors, (95) [2022-11-25 22:29:15,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:29:16,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:29:17,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:29:24,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:29:24,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:29:24,355 INFO L93 Difference]: Finished difference Result 38357 states and 50675 transitions. [2022-11-25 22:29:24,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:29:24,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.0) internal successors, (205), 4 states have internal predecessors, (205), 3 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (95), 4 states have call predecessors, (95), 3 states have call successors, (95) Word has length 674 [2022-11-25 22:29:24,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:29:24,404 INFO L225 Difference]: With dead ends: 38357 [2022-11-25 22:29:24,404 INFO L226 Difference]: Without dead ends: 20694 [2022-11-25 22:29:24,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:29:24,433 INFO L413 NwaCegarLoop]: 1505 mSDtfsCounter, 802 mSDsluCounter, 3823 mSDsCounter, 0 mSdLazyCounter, 1164 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 5328 SdHoareTripleChecker+Invalid, 1169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:29:24,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 5328 Invalid, 1169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1164 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2022-11-25 22:29:24,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20694 states. [2022-11-25 22:29:27,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20694 to 20650. [2022-11-25 22:29:27,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20650 states, 13040 states have (on average 1.2293711656441717) internal successors, (16031), 13322 states have internal predecessors, (16031), 5541 states have call successors, (5541), 2025 states have call predecessors, (5541), 2068 states have return successors, (5640), 5333 states have call predecessors, (5640), 5541 states have call successors, (5640) [2022-11-25 22:29:27,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20650 states to 20650 states and 27212 transitions. [2022-11-25 22:29:27,079 INFO L78 Accepts]: Start accepts. Automaton has 20650 states and 27212 transitions. Word has length 674 [2022-11-25 22:29:27,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:29:27,080 INFO L495 AbstractCegarLoop]: Abstraction has 20650 states and 27212 transitions. [2022-11-25 22:29:27,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.0) internal successors, (205), 4 states have internal predecessors, (205), 3 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (95), 4 states have call predecessors, (95), 3 states have call successors, (95) [2022-11-25 22:29:27,080 INFO L276 IsEmpty]: Start isEmpty. Operand 20650 states and 27212 transitions. [2022-11-25 22:29:27,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2022-11-25 22:29:27,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:29:27,100 INFO L195 NwaCegarLoop]: trace histogram [26, 23, 21, 21, 14, 14, 14, 14, 14, 14, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:29:27,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 22:29:27,100 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:29:27,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:29:27,101 INFO L85 PathProgramCache]: Analyzing trace with hash -702342295, now seen corresponding path program 1 times [2022-11-25 22:29:27,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:29:27,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494035729] [2022-11-25 22:29:27,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:29:27,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:29:27,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:29:28,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2587 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 2558 trivial. 0 not checked. [2022-11-25 22:29:28,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:29:28,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494035729] [2022-11-25 22:29:28,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494035729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:29:28,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:29:28,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:29:28,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879043541] [2022-11-25 22:29:28,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:29:28,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:29:28,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:29:28,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:29:28,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:29:28,267 INFO L87 Difference]: Start difference. First operand 20650 states and 27212 transitions. Second operand has 5 states, 5 states have (on average 41.8) internal successors, (209), 4 states have internal predecessors, (209), 3 states have call successors, (97), 2 states have call predecessors, (97), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) [2022-11-25 22:29:33,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:29:38,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:29:38,707 INFO L93 Difference]: Finished difference Result 44108 states and 58212 transitions. [2022-11-25 22:29:38,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:29:38,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.8) internal successors, (209), 4 states have internal predecessors, (209), 3 states have call successors, (97), 2 states have call predecessors, (97), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) Word has length 676 [2022-11-25 22:29:38,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:29:38,803 INFO L225 Difference]: With dead ends: 44108 [2022-11-25 22:29:38,804 INFO L226 Difference]: Without dead ends: 23475 [2022-11-25 22:29:38,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:29:38,853 INFO L413 NwaCegarLoop]: 1466 mSDtfsCounter, 762 mSDsluCounter, 3743 mSDsCounter, 0 mSdLazyCounter, 1150 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 763 SdHoareTripleChecker+Valid, 5209 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1150 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:29:38,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [763 Valid, 5209 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1150 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-11-25 22:29:38,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23475 states. [2022-11-25 22:29:41,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23475 to 23429. [2022-11-25 22:29:41,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23429 states, 14838 states have (on average 1.2255020892303545) internal successors, (18184), 15163 states have internal predecessors, (18184), 6267 states have call successors, (6267), 2262 states have call predecessors, (6267), 2323 states have return successors, (6395), 6034 states have call predecessors, (6395), 6267 states have call successors, (6395) [2022-11-25 22:29:42,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23429 states to 23429 states and 30846 transitions. [2022-11-25 22:29:42,007 INFO L78 Accepts]: Start accepts. Automaton has 23429 states and 30846 transitions. Word has length 676 [2022-11-25 22:29:42,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:29:42,008 INFO L495 AbstractCegarLoop]: Abstraction has 23429 states and 30846 transitions. [2022-11-25 22:29:42,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.8) internal successors, (209), 4 states have internal predecessors, (209), 3 states have call successors, (97), 2 states have call predecessors, (97), 2 states have return successors, (96), 4 states have call predecessors, (96), 3 states have call successors, (96) [2022-11-25 22:29:42,009 INFO L276 IsEmpty]: Start isEmpty. Operand 23429 states and 30846 transitions. [2022-11-25 22:29:42,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2022-11-25 22:29:42,034 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:29:42,035 INFO L195 NwaCegarLoop]: trace histogram [26, 22, 21, 21, 14, 14, 14, 14, 14, 14, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:29:42,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 22:29:42,035 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:29:42,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:29:42,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1115102190, now seen corresponding path program 1 times [2022-11-25 22:29:42,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:29:42,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388588302] [2022-11-25 22:29:42,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:29:42,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:29:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:29:43,357 INFO L134 CoverageAnalysis]: Checked inductivity of 2593 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 2540 trivial. 0 not checked. [2022-11-25 22:29:43,357 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:29:43,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388588302] [2022-11-25 22:29:43,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388588302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:29:43,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:29:43,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:29:43,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169911351] [2022-11-25 22:29:43,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:29:43,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:29:43,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:29:43,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:29:43,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:29:43,361 INFO L87 Difference]: Start difference. First operand 23429 states and 30846 transitions. Second operand has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 3 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (95), 4 states have call predecessors, (95), 3 states have call successors, (95) [2022-11-25 22:29:48,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:29:49,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:29:56,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:29:57,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:29:57,828 INFO L93 Difference]: Finished difference Result 49893 states and 65783 transitions. [2022-11-25 22:29:57,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:29:57,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 3 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (95), 4 states have call predecessors, (95), 3 states have call successors, (95) Word has length 676 [2022-11-25 22:29:57,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:29:57,897 INFO L225 Difference]: With dead ends: 49893 [2022-11-25 22:29:57,897 INFO L226 Difference]: Without dead ends: 26481 [2022-11-25 22:29:57,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:29:57,933 INFO L413 NwaCegarLoop]: 1505 mSDtfsCounter, 802 mSDsluCounter, 3823 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 5328 SdHoareTripleChecker+Invalid, 1177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:29:57,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 5328 Invalid, 1177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1170 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2022-11-25 22:29:57,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26481 states. [2022-11-25 22:30:01,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26481 to 26437. [2022-11-25 22:30:01,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26437 states, 16782 states have (on average 1.2220831843641997) internal successors, (20509), 17148 states have internal predecessors, (20509), 7051 states have call successors, (7051), 2524 states have call predecessors, (7051), 2603 states have return successors, (7206), 6795 states have call predecessors, (7206), 7051 states have call successors, (7206) [2022-11-25 22:30:01,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26437 states to 26437 states and 34766 transitions. [2022-11-25 22:30:01,708 INFO L78 Accepts]: Start accepts. Automaton has 26437 states and 34766 transitions. Word has length 676 [2022-11-25 22:30:01,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:30:01,708 INFO L495 AbstractCegarLoop]: Abstraction has 26437 states and 34766 transitions. [2022-11-25 22:30:01,708 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.4) internal successors, (207), 4 states have internal predecessors, (207), 3 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (95), 4 states have call predecessors, (95), 3 states have call successors, (95) [2022-11-25 22:30:01,708 INFO L276 IsEmpty]: Start isEmpty. Operand 26437 states and 34766 transitions. [2022-11-25 22:30:01,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 678 [2022-11-25 22:30:01,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:30:01,726 INFO L195 NwaCegarLoop]: trace histogram [26, 22, 21, 21, 14, 14, 14, 14, 14, 14, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:30:01,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-25 22:30:01,727 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:30:01,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:30:01,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1277923626, now seen corresponding path program 1 times [2022-11-25 22:30:01,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:30:01,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452920364] [2022-11-25 22:30:01,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:01,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:30:02,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:30:02,856 INFO L134 CoverageAnalysis]: Checked inductivity of 2593 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 2540 trivial. 0 not checked. [2022-11-25 22:30:02,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:30:02,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452920364] [2022-11-25 22:30:02,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452920364] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:30:02,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:30:02,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:30:02,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663512581] [2022-11-25 22:30:02,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:30:02,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:30:02,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:30:02,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:30:02,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:30:02,860 INFO L87 Difference]: Start difference. First operand 26437 states and 34766 transitions. Second operand has 5 states, 5 states have (on average 41.6) internal successors, (208), 4 states have internal predecessors, (208), 3 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (95), 4 states have call predecessors, (95), 3 states have call successors, (95) [2022-11-25 22:30:07,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:30:13,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:30:13,862 INFO L93 Difference]: Finished difference Result 55720 states and 73396 transitions. [2022-11-25 22:30:13,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:30:13,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 4 states have internal predecessors, (208), 3 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (95), 4 states have call predecessors, (95), 3 states have call successors, (95) Word has length 677 [2022-11-25 22:30:13,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:30:13,960 INFO L225 Difference]: With dead ends: 55720 [2022-11-25 22:30:13,960 INFO L226 Difference]: Without dead ends: 29300 [2022-11-25 22:30:14,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:30:14,009 INFO L413 NwaCegarLoop]: 1466 mSDtfsCounter, 785 mSDsluCounter, 3727 mSDsCounter, 0 mSdLazyCounter, 1153 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 5193 SdHoareTripleChecker+Invalid, 1163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1153 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:30:14,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 5193 Invalid, 1163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1153 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-11-25 22:30:14,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29300 states. [2022-11-25 22:30:17,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29300 to 29254. [2022-11-25 22:30:17,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29254 states, 18618 states have (on average 1.2192501879901172) internal successors, (22700), 19027 states have internal predecessors, (22700), 7777 states have call successors, (7777), 2761 states have call predecessors, (7777), 2858 states have return successors, (7961), 7496 states have call predecessors, (7961), 7777 states have call successors, (7961) [2022-11-25 22:30:17,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29254 states to 29254 states and 38438 transitions. [2022-11-25 22:30:17,951 INFO L78 Accepts]: Start accepts. Automaton has 29254 states and 38438 transitions. Word has length 677 [2022-11-25 22:30:17,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:30:17,952 INFO L495 AbstractCegarLoop]: Abstraction has 29254 states and 38438 transitions. [2022-11-25 22:30:17,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.6) internal successors, (208), 4 states have internal predecessors, (208), 3 states have call successors, (98), 2 states have call predecessors, (98), 2 states have return successors, (95), 4 states have call predecessors, (95), 3 states have call successors, (95) [2022-11-25 22:30:17,952 INFO L276 IsEmpty]: Start isEmpty. Operand 29254 states and 38438 transitions. [2022-11-25 22:30:17,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 679 [2022-11-25 22:30:17,976 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:30:17,976 INFO L195 NwaCegarLoop]: trace histogram [26, 22, 21, 21, 14, 14, 14, 14, 14, 14, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:30:17,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-25 22:30:17,977 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:30:17,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:30:17,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1276606413, now seen corresponding path program 1 times [2022-11-25 22:30:17,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:30:17,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237931687] [2022-11-25 22:30:17,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:17,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:30:18,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:30:19,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2593 backedges. 56 proven. 6 refuted. 0 times theorem prover too weak. 2531 trivial. 0 not checked. [2022-11-25 22:30:19,463 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:30:19,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237931687] [2022-11-25 22:30:19,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237931687] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:30:19,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322863054] [2022-11-25 22:30:19,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:19,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:30:19,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:30:19,467 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:30:19,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 22:30:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:30:22,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 8950 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-25 22:30:22,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:30:22,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2593 backedges. 1220 proven. 0 refuted. 0 times theorem prover too weak. 1373 trivial. 0 not checked. [2022-11-25 22:30:22,354 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:30:22,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322863054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:30:22,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 22:30:22,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2022-11-25 22:30:22,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663875818] [2022-11-25 22:30:22,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:30:22,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:30:22,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:30:22,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:30:22,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:30:22,358 INFO L87 Difference]: Start difference. First operand 29254 states and 38438 transitions. Second operand has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 2 states have call successors, (101), 2 states have call predecessors, (101), 3 states have return successors, (98), 3 states have call predecessors, (98), 2 states have call successors, (98) [2022-11-25 22:30:26,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:30:30,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-25 22:30:35,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:30:35,675 INFO L93 Difference]: Finished difference Result 71783 states and 96619 transitions. [2022-11-25 22:30:35,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:30:35,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 2 states have call successors, (101), 2 states have call predecessors, (101), 3 states have return successors, (98), 3 states have call predecessors, (98), 2 states have call successors, (98) Word has length 678 [2022-11-25 22:30:35,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:30:35,783 INFO L225 Difference]: With dead ends: 71783 [2022-11-25 22:30:35,783 INFO L226 Difference]: Without dead ends: 42546 [2022-11-25 22:30:35,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 682 GetRequests, 679 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:30:35,833 INFO L413 NwaCegarLoop]: 1076 mSDtfsCounter, 162 mSDsluCounter, 3027 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 4103 SdHoareTripleChecker+Invalid, 885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:30:35,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 4103 Invalid, 885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 883 Invalid, 2 Unknown, 0 Unchecked, 7.6s Time] [2022-11-25 22:30:35,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42546 states. [2022-11-25 22:30:40,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42546 to 29326. [2022-11-25 22:30:40,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29326 states, 18672 states have (on average 1.2186161096829478) internal successors, (22754), 19081 states have internal predecessors, (22754), 7777 states have call successors, (7777), 2761 states have call predecessors, (7777), 2876 states have return successors, (8069), 7514 states have call predecessors, (8069), 7777 states have call successors, (8069) [2022-11-25 22:30:40,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29326 states to 29326 states and 38600 transitions. [2022-11-25 22:30:40,593 INFO L78 Accepts]: Start accepts. Automaton has 29326 states and 38600 transitions. Word has length 678 [2022-11-25 22:30:40,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:30:40,594 INFO L495 AbstractCegarLoop]: Abstraction has 29326 states and 38600 transitions. [2022-11-25 22:30:40,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.2) internal successors, (221), 4 states have internal predecessors, (221), 2 states have call successors, (101), 2 states have call predecessors, (101), 3 states have return successors, (98), 3 states have call predecessors, (98), 2 states have call successors, (98) [2022-11-25 22:30:40,594 INFO L276 IsEmpty]: Start isEmpty. Operand 29326 states and 38600 transitions. [2022-11-25 22:30:40,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2022-11-25 22:30:40,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:30:40,624 INFO L195 NwaCegarLoop]: trace histogram [27, 21, 21, 21, 15, 15, 15, 15, 15, 15, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:30:40,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:30:40,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:30:40,836 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:30:40,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:30:40,836 INFO L85 PathProgramCache]: Analyzing trace with hash 151800917, now seen corresponding path program 1 times [2022-11-25 22:30:40,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:30:40,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458393033] [2022-11-25 22:30:40,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:40,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:30:41,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:30:42,263 INFO L134 CoverageAnalysis]: Checked inductivity of 2704 backedges. 59 proven. 6 refuted. 0 times theorem prover too weak. 2639 trivial. 0 not checked. [2022-11-25 22:30:42,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:30:42,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458393033] [2022-11-25 22:30:42,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458393033] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 22:30:42,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500225297] [2022-11-25 22:30:42,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:42,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:30:42,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:30:42,268 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:30:42,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb715246-b4a9-4e3a-afba-d7e40cd02009/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process